首页 > 最新文献

Translational Research in Anatomy最新文献

英文 中文
Comparative analysis of histogenesis and morphological histopathology in normal and abnormal human fetal cerebellum (20–23 gestational weeks) 正常与异常胎鼠小脑(20 ~ 23孕周)组织发生及形态组织病理学比较分析
Q3 Medicine Pub Date : 2025-09-16 DOI: 10.1016/j.tria.2025.100443
Aamna Kausar , Shalini S. Nayak , Sapna , Deepak Nayak M , Veeresh , Mamatha Hosapatna

Background

The cerebellum plays crucial roles in motor coordination, cognition, and balance. During embryogenesis, its development is regulated by several genetic factors. Aberrant genetic expression leads to cerebellar anomalies, including inferior vermian hypoplasia (IVH) and cerebellar hypoplasia (CH). This study aimed to analyze the histo-morphological changes in abnormal human fetal cerebellar (HFC) tissues compared with their normal counterparts.

Methods

A prospective observational study was conducted over one year with institutional ethical clearance. Twenty HFC tissues (10 normal and 10 abnormal) from 20 to 23 gestational weeks (GWs) were obtained postautopsy, fixed in formalin, and processed for histological analysis. Hematoxylin and eosin staining was performed, and the samples were examined under a microscope for morphological differences.

Results

Significant histo-morphological differences were noted between normal and abnormal HFC tissues:
  • Normal HFC (GWs 20–23): Progressive differentiation of cerebellar cortical layers, emergence of Purkinje cells (PCs), and proper foliation.
  • In IVH cases, poor development of cortical layers, the absence of PCs, and cerebellar anlage formation indicate early developmental arrest.
  • CH cases include severe cortical disruption, a lack of foliation, and secondary degenerative changes such as dystrophic calcification, hypoxia, and macrophage infiltration.
  • Normal HFC (GWs 20–23): Progressive differentiation of cerebellar cortical layers, emergence of Purkinje cells (PCs), and proper foliation.
  • In IVH cases, poor development of cortical layers, the absence of PCs, and cerebellar anlage formation indicate early developmental arrest.
  • CH cases include severe cortical disruption, a lack of foliation, and secondary degenerative changes such as dystrophic calcification, hypoxia, and macrophage infiltration.

Conclusion

Histological comparison highlights developmental arrest and structural disorganization in IVH and CH cases. Understanding these differences is essential for increasing the knowledge of abnormal development and planning potential precautions prior to pregnancy in the future. Moreover, this study underscores the need for further research into fetal cerebellar anomalies to improve prenatal diagnostic techniques and potential therapeutic interventions.
小脑在运动协调、认知和平衡中起着至关重要的作用。在胚胎发生过程中,其发育受多种遗传因素的调控。异常的基因表达导致小脑异常,包括下蚓发育不全(IVH)和小脑发育不全(CH)。本研究旨在分析异常人胎儿小脑(HFC)组织与正常胎儿的组织形态学变化。方法一项为期一年的前瞻性观察性研究在机构伦理许可下进行。尸检后获得20 ~ 23孕周(GWs) HFC组织20个(正常10个,异常10个),用福尔马林固定,并进行组织学分析。进行苏木精和伊红染色,并在显微镜下检查样品的形态学差异。结果正常HFC与异常HFC在组织形态学上存在显著差异:•正常HFC (GWs 20-23):小脑皮质层逐渐分化,浦肯野细胞(PCs)出现,叶理发育。•在IVH病例中,皮质层发育不良、pc缺失和小脑斑块形成表明早期发育停止。•CH病例包括严重的皮质破坏,缺乏叶面,继发性退行性改变,如营养不良钙化,缺氧和巨噬细胞浸润。•正常HFC (GWs 20-23):小脑皮质层渐进式分化,浦肯野细胞(PCs)出现,叶面形成。•在IVH病例中,皮质层发育不良、pc缺失和小脑斑块形成表明早期发育停止。•CH病例包括严重的皮质破坏,缺乏叶面,继发性退行性改变,如营养不良钙化,缺氧和巨噬细胞浸润。结论:IVH和CH的组织学比较突出发育阻滞和结构紊乱。了解这些差异对于提高对异常发育的认识和在未来怀孕前计划潜在的预防措施至关重要。此外,本研究强调需要进一步研究胎儿小脑异常,以改进产前诊断技术和潜在的治疗干预措施。
{"title":"Comparative analysis of histogenesis and morphological histopathology in normal and abnormal human fetal cerebellum (20–23 gestational weeks)","authors":"Aamna Kausar ,&nbsp;Shalini S. Nayak ,&nbsp;Sapna ,&nbsp;Deepak Nayak M ,&nbsp;Veeresh ,&nbsp;Mamatha Hosapatna","doi":"10.1016/j.tria.2025.100443","DOIUrl":"10.1016/j.tria.2025.100443","url":null,"abstract":"<div><h3>Background</h3><div>The cerebellum plays crucial roles in motor coordination, cognition, and balance. During embryogenesis, its development is regulated by several genetic factors. Aberrant genetic expression leads to cerebellar anomalies, including inferior vermian hypoplasia (IVH) and cerebellar hypoplasia (CH). This study aimed to analyze the histo-morphological changes in abnormal human fetal cerebellar (HFC) tissues compared with their normal counterparts.</div></div><div><h3>Methods</h3><div>A prospective observational study was conducted over one year with institutional ethical clearance. Twenty HFC tissues (10 normal and 10 abnormal) from 20 to 23 gestational weeks (GWs) were obtained postautopsy, fixed in formalin, and processed for histological analysis. Hematoxylin and eosin staining was performed, and the samples were examined under a microscope for morphological differences.</div></div><div><h3>Results</h3><div>Significant histo-morphological differences were noted between normal and abnormal HFC tissues:<ul><li><span>•</span><span><div>Normal HFC (GWs 20–23): Progressive differentiation of cerebellar cortical layers, emergence of Purkinje cells (PCs), and proper foliation.</div></span></li><li><span>•</span><span><div>In IVH cases, poor development of cortical layers, the absence of PCs, and cerebellar anlage formation indicate early developmental arrest.</div></span></li><li><span>•</span><span><div>CH cases include severe cortical disruption, a lack of foliation, and secondary degenerative changes such as dystrophic calcification, hypoxia, and macrophage infiltration.</div></span></li></ul></div><div><ul><li><span>•</span><span><div>Normal HFC (GWs 20–23): Progressive differentiation of cerebellar cortical layers, emergence of Purkinje cells (PCs), and proper foliation.</div></span></li><li><span>•</span><span><div>In IVH cases, poor development of cortical layers, the absence of PCs, and cerebellar anlage formation indicate early developmental arrest.</div></span></li><li><span>•</span><span><div>CH cases include severe cortical disruption, a lack of foliation, and secondary degenerative changes such as dystrophic calcification, hypoxia, and macrophage infiltration.</div></span></li></ul></div></div><div><h3>Conclusion</h3><div>Histological comparison highlights developmental arrest and structural disorganization in IVH and CH cases. Understanding these differences is essential for increasing the knowledge of abnormal development and planning potential precautions prior to pregnancy in the future. Moreover, this study underscores the need for further research into fetal cerebellar anomalies to improve prenatal diagnostic techniques and potential therapeutic interventions.</div></div>","PeriodicalId":37913,"journal":{"name":"Translational Research in Anatomy","volume":"41 ","pages":"Article 100443"},"PeriodicalIF":0.0,"publicationDate":"2025-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145095497","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Case analysis and clinical implications of a hemangioma located between the pronator quadratus and interosseous membrane 旋前方肌与骨间膜间血管瘤的病例分析及临床意义
Q3 Medicine Pub Date : 2025-09-08 DOI: 10.1016/j.tria.2025.100441
Arene S. Barwari , Parker Murphy , Anders S. Mattecheck , Yorell Manon-Matos , Ethan L. Snow

Background

Hemangiomas are seldom considered as a differential diagnosis for conditions with common etiologies. Reports detailing hemangiomas in unique locations with comprehensive analyses are scarce. This study aims to investigate a hemangioma uniquely located between the pronator quadratus (PQ) and the interosseous membrane (IOM) with gross, histological, and biomechanical analyses.

Methods

A unilateral (right) hemangioma was discovered during routine dissection of an adult human cadaver, measured, weighed, transected, and photographed. Two tissue samples were collected, processed for histology (H&E), and scanned for examination via digital light microscopy. Maximal isometric force (Fmax) of the overlying PQ was calculated to determine the central force vector that would compress the hemangioma upon contraction.

Results

The 4.85 g multilobulated hemangioma was supplied by the anterior interosseous artery and bound by the PQ, IOM, and distal radius and ulna. The hemangioma was roughly circular (r = ∼2.65 cm) in the coronal plane and disproportionally thicker on its ulnar side (1.88 cm vs. 0.45 cm). Histological analysis revealed atrophic skeletal muscle and clusters of leukocytes. The PQ muscle exhibited a Fmax of 45.47 N and the ability to compress the hemangioma with 12.56 N.

Conclusions

Despite its likelihood for provoking sequelae, a hemangioma presenting between the PQ and IOM may not be considered when evaluating musculoskeletal pain, distal forearm fractures, compartment syndrome, or carpal tunnel syndrome. This study may provide new and important insights to orthopedists, vascular surgeons, medical educators, clinical anatomists, and allied health professionals when analyzing, diagnosing, or treating related cases.
背景:血管瘤很少被认为是具有共同病因的疾病的鉴别诊断。详细介绍独特位置血管瘤的综合分析报告很少。本研究旨在通过大体、组织学和生物力学分析来研究位于旋前方肌(PQ)和骨间膜(IOM)之间的血管瘤。方法对一具成人尸体进行常规解剖,发现单侧(右侧)血管瘤,测量、称量、横切、拍照。收集两个组织样本,进行组织学处理(H&;E),并通过数字光学显微镜扫描检查。计算上覆PQ的最大等距力(Fmax),以确定在收缩时压缩血管瘤的中心力矢量。结果4.85 g多叶状血管瘤由骨间前动脉供血,并由PQ、IOM和远端桡骨、尺骨结合。血管瘤在冠状面大致呈圆形(r = ~ 2.65 cm),在尺侧不成比例地增厚(1.88 cm vs. 0.45 cm)。组织学分析显示骨骼肌萎缩和白细胞聚集。PQ肌的Fmax为45.47 N,压缩血管瘤的能力为12.56 N。结论:尽管有可能引发后遗症,但在评估肌肉骨骼疼痛、前臂远端骨折、筋膜室综合征或腕管综合征时,PQ和IOM之间出现的血管瘤可能不被考虑。本研究可能为骨科医生、血管外科医生、医学教育者、临床解剖学家和相关卫生专业人员在分析、诊断或治疗相关病例时提供新的重要见解。
{"title":"Case analysis and clinical implications of a hemangioma located between the pronator quadratus and interosseous membrane","authors":"Arene S. Barwari ,&nbsp;Parker Murphy ,&nbsp;Anders S. Mattecheck ,&nbsp;Yorell Manon-Matos ,&nbsp;Ethan L. Snow","doi":"10.1016/j.tria.2025.100441","DOIUrl":"10.1016/j.tria.2025.100441","url":null,"abstract":"<div><h3>Background</h3><div>Hemangiomas are seldom considered as a differential diagnosis for conditions with common etiologies. Reports detailing hemangiomas in unique locations with comprehensive analyses are scarce. This study aims to investigate a hemangioma uniquely located between the pronator quadratus (PQ) and the interosseous membrane (IOM) with gross, histological, and biomechanical analyses.</div></div><div><h3>Methods</h3><div>A unilateral (right) hemangioma was discovered during routine dissection of an adult human cadaver, measured, weighed, transected, and photographed. Two tissue samples were collected, processed for histology (H&amp;E), and scanned for examination via digital light microscopy. Maximal isometric force (<em>F</em><sub><em>max</em></sub>) of the overlying PQ was calculated to determine the central force vector that would compress the hemangioma upon contraction.</div></div><div><h3>Results</h3><div>The 4.85 g multilobulated hemangioma was supplied by the anterior interosseous artery and bound by the PQ, IOM, and distal radius and ulna. The hemangioma was roughly circular (r = ∼2.65 cm) in the coronal plane and disproportionally thicker on its ulnar side (1.88 cm vs. 0.45 cm). Histological analysis revealed atrophic skeletal muscle and clusters of leukocytes. The PQ muscle exhibited a <em>F</em><sub><em>max</em></sub> of 45.47 N and the ability to compress the hemangioma with 12.56 N.</div></div><div><h3>Conclusions</h3><div>Despite its likelihood for provoking sequelae, a hemangioma presenting between the PQ and IOM may not be considered when evaluating musculoskeletal pain, distal forearm fractures, compartment syndrome, or carpal tunnel syndrome. This study may provide new and important insights to orthopedists, vascular surgeons, medical educators, clinical anatomists, and allied health professionals when analyzing, diagnosing, or treating related cases.</div></div>","PeriodicalId":37913,"journal":{"name":"Translational Research in Anatomy","volume":"41 ","pages":"Article 100441"},"PeriodicalIF":0.0,"publicationDate":"2025-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145048451","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Visuospatial ability and neuroanatomy learning in health profession education – A scoping review 卫生专业教育中的视觉空间能力和神经解剖学学习-范围综述
Q3 Medicine Pub Date : 2025-09-08 DOI: 10.1016/j.tria.2025.100436
K. Anniesmitha , Edlin Glane Mathias , Nikita N. Bandekar , K.G. Mohandas Rao , P. Ashwini Aithal , Bincy M. George

Background

Neuroanatomy requires learners to interpret and mentally manipulate complex three-dimensional (3D) structures, making visuospatial ability (VSA) a critical factor for success. In recent years, educational technologies have emerged as promising tools to support spatial learning. However, the extent to which these technologies can enhance or compensate for learners' spatial skills remains unclear.

Objective

This scoping review aimed to explore how various educational technologies impact the development or support of visuospatial ability in neuroanatomy education and to identify the assessment tools used to measure spatial ability across different studies.

Methods

A systematic search was conducted across PubMed, Scopus, CINAHL, Cochrane library, and Embase databases to identify studies that investigated the relationship between educational technology, spatial ability, and neuroanatomy learning. Included studies were analyzed for participant demographics, technology used, spatial ability assessment tools, and reported effects on VSA and learning outcomes.

Results

Ten studies met the inclusion criteria, employing diverse technologies such as Virtual Reality (VR), Augmented Reality (AR), Mixed Reality (MR), interactive 3D modules, and volumetric imaging tools. Most studies used standardized psychometric tools like the Mental Rotations Test (MRT), Purdue Spatial Visualization Test (PSVT: R), or Santa Barbara Solids Test (SBST) to measure VSA. Evidence suggests that immersive technologies, particularly VR and MR, offer significant support to students with initially low spatial ability, narrowing the performance gap and, in some cases, enhancing spatial skills through repeated exposure and interactive visualization. While not all studies assessed VSA pre- and post-intervention, several studies reported improved spatial task performance and user engagement linked to technology use. Studies using 2D or non-immersive platforms showed limited benefit for low-VSA learners.

Conclusion

Emerging educational technologies, especially 3D, VR, and MR tools, have shown potential not only to support but also to enhance visuospatial ability in the context of neuroanatomy education. Integrating these tools strategically could improve spatial reasoning and reduce disparities among learners with varying cognitive profiles. Future research should focus on longitudinal evaluations, standardized spatial assessments, and adaptive technologies that respond to learners’ spatial needs.
神经解剖学要求学习者解释和在心理上操纵复杂的三维(3D)结构,这使得视觉空间能力(VSA)成为成功的关键因素。近年来,教育技术已成为支持空间学习的有前途的工具。然而,这些技术在多大程度上可以增强或弥补学习者的空间技能尚不清楚。目的:本综述旨在探讨各种教育技术如何影响神经解剖学教育中视觉空间能力的发展或支持,并确定不同研究中用于测量空间能力的评估工具。方法系统检索PubMed、Scopus、CINAHL、Cochrane library和Embase等数据库,找出探讨教育技术、空间能力和神经解剖学学习之间关系的研究。纳入的研究分析了参与者的人口统计、使用的技术、空间能力评估工具以及对VSA和学习结果的报告影响。结果10项研究符合纳入标准,采用了虚拟现实(VR)、增强现实(AR)、混合现实(MR)、交互式3D模块和体积成像工具等多种技术。大多数研究使用标准化的心理测量工具,如心理旋转测试(MRT)、普渡空间可视化测试(PSVT: R)或圣巴巴拉固体测试(SBST)来测量VSA。有证据表明,沉浸式技术,特别是VR和MR,为最初空间能力较低的学生提供了重要的支持,缩小了表现差距,在某些情况下,通过反复暴露和互动可视化,提高了空间技能。虽然并非所有的研究都评估了VSA干预前后的情况,但有几项研究报告称,与技术使用有关的空间任务表现和用户参与度有所提高。使用2D或非沉浸式平台的研究显示,对低vsa学习者的益处有限。结论新兴的教育技术,特别是3D、VR和MR工具,在神经解剖学教育背景下,不仅支持而且增强了视觉空间能力。战略性地整合这些工具可以提高空间推理能力,减少不同认知特征学习者之间的差异。未来的研究应着眼于纵向评价、标准化空间评价和适应学习者空间需求的技术。
{"title":"Visuospatial ability and neuroanatomy learning in health profession education – A scoping review","authors":"K. Anniesmitha ,&nbsp;Edlin Glane Mathias ,&nbsp;Nikita N. Bandekar ,&nbsp;K.G. Mohandas Rao ,&nbsp;P. Ashwini Aithal ,&nbsp;Bincy M. George","doi":"10.1016/j.tria.2025.100436","DOIUrl":"10.1016/j.tria.2025.100436","url":null,"abstract":"<div><h3>Background</h3><div>Neuroanatomy requires learners to interpret and mentally manipulate complex three-dimensional (3D) structures, making visuospatial ability (VSA) a critical factor for success. In recent years, educational technologies have emerged as promising tools to support spatial learning. However, the extent to which these technologies can enhance or compensate for learners' spatial skills remains unclear.</div></div><div><h3>Objective</h3><div>This scoping review aimed to explore how various educational technologies impact the development or support of visuospatial ability in neuroanatomy education and to identify the assessment tools used to measure spatial ability across different studies.</div></div><div><h3>Methods</h3><div>A systematic search was conducted across PubMed, Scopus, CINAHL, Cochrane library, and Embase databases to identify studies that investigated the relationship between educational technology, spatial ability, and neuroanatomy learning. Included studies were analyzed for participant demographics, technology used, spatial ability assessment tools, and reported effects on VSA and learning outcomes.</div></div><div><h3>Results</h3><div>Ten studies met the inclusion criteria, employing diverse technologies such as Virtual Reality (VR), Augmented Reality (AR), Mixed Reality (MR), interactive 3D modules, and volumetric imaging tools. Most studies used standardized psychometric tools like the Mental Rotations Test (MRT), Purdue Spatial Visualization Test (PSVT: R), or Santa Barbara Solids Test (SBST) to measure VSA. Evidence suggests that immersive technologies, particularly VR and MR, offer significant support to students with initially low spatial ability, narrowing the performance gap and, in some cases, enhancing spatial skills through repeated exposure and interactive visualization. While not all studies assessed VSA pre- and post-intervention, several studies reported improved spatial task performance and user engagement linked to technology use. Studies using 2D or non-immersive platforms showed limited benefit for low-VSA learners.</div></div><div><h3>Conclusion</h3><div>Emerging educational technologies, especially 3D, VR, and MR tools, have shown potential not only to support but also to enhance visuospatial ability in the context of neuroanatomy education. Integrating these tools strategically could improve spatial reasoning and reduce disparities among learners with varying cognitive profiles. Future research should focus on longitudinal evaluations, standardized spatial assessments, and adaptive technologies that respond to learners’ spatial needs.</div></div>","PeriodicalId":37913,"journal":{"name":"Translational Research in Anatomy","volume":"41 ","pages":"Article 100436"},"PeriodicalIF":0.0,"publicationDate":"2025-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145026461","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The anatomical and neuroanatomical concepts of Galen 盖伦的解剖学和神经解剖学概念
Q3 Medicine Pub Date : 2025-09-04 DOI: 10.1016/j.tria.2025.100440
Andrzej Żytkowski , Krzysztof Balawender , Stanisław Orkisz

Background

Claudius Galen was one of the most influential medical authors of antiquity. His anatomical and neuroanatomical doctrines, derived primarily from animal dissection, shaped medical thought from the Roman era through the Middle Ages and into the early modern period.

Aim

The aim of this paper is to provide a concise overview of the life and anatomical concepts of Galen, with a focus on his influence on the development of neuroanatomy and humoral theory. Particular attention is given to the sources of his knowledge, the historical context of his writings, and their reception in subsequent centuries.

Conclusions

Although many of Galen's anatomical beliefs were later proven inaccurate, they reflected the intellectual context and methodological constraints of his time. His work synthesized earlier knowledge with original observations and had a lasting impact on the development of medical theory. Galen's legacy illustrates the importance of critically evaluating historical sources within their cultural and scientific framework.
克劳迪亚斯·盖伦是古代最有影响力的医学作家之一。他的解剖学和神经解剖学学说,主要来源于动物解剖,塑造了从罗马时代到中世纪和近代早期的医学思想。目的简要介绍盖伦的生平和解剖学概念,重点介绍他对神经解剖学和体液学理论发展的影响。特别关注的是他的知识来源,他的作品的历史背景,以及他们在随后的几个世纪的接受。尽管盖伦的许多解剖学观点后来被证明是不准确的,但它们反映了他那个时代的知识背景和方法论限制。他的工作综合了早期的知识和原始的观察,对医学理论的发展产生了持久的影响。盖伦的遗产说明了在其文化和科学框架内对历史资料进行批判性评估的重要性。
{"title":"The anatomical and neuroanatomical concepts of Galen","authors":"Andrzej Żytkowski ,&nbsp;Krzysztof Balawender ,&nbsp;Stanisław Orkisz","doi":"10.1016/j.tria.2025.100440","DOIUrl":"10.1016/j.tria.2025.100440","url":null,"abstract":"<div><h3>Background</h3><div>Claudius Galen was one of the most influential medical authors of antiquity. His anatomical and neuroanatomical doctrines, derived primarily from animal dissection, shaped medical thought from the Roman era through the Middle Ages and into the early modern period.</div></div><div><h3>Aim</h3><div>The aim of this paper is to provide a concise overview of the life and anatomical concepts of Galen, with a focus on his influence on the development of neuroanatomy and humoral theory. Particular attention is given to the sources of his knowledge, the historical context of his writings, and their reception in subsequent centuries.</div></div><div><h3>Conclusions</h3><div>Although many of Galen's anatomical beliefs were later proven inaccurate, they reflected the intellectual context and methodological constraints of his time. His work synthesized earlier knowledge with original observations and had a lasting impact on the development of medical theory. Galen's legacy illustrates the importance of critically evaluating historical sources within their cultural and scientific framework.</div></div>","PeriodicalId":37913,"journal":{"name":"Translational Research in Anatomy","volume":"41 ","pages":"Article 100440"},"PeriodicalIF":0.0,"publicationDate":"2025-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145059898","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Biomechanical parameters and intermuscular comparability of asymmetrical pronator quadratus muscle variations with reversed tendon aponeuroses 不对称方前旋肌变异与逆行腱膜的生物力学参数和肌间比较
Q3 Medicine Pub Date : 2025-09-02 DOI: 10.1016/j.tria.2025.100439
Fischer A. Clarke , Branden C. Fox , Jessica Pillatzki , Joseph X. Anders , Robert E. Van Demark Jr. , Ethan L. Snow

Background

The pronator quadratus (PQ) is a quadrangular muscle deep in the anterior compartment of the forearm that executes pronation and stabilizes the distal radioulnar joint (DRUJ). A thin, superficial tendon aponeurosis is commonly present on its ulnar side. Reports of non-typical PQ morphologies involving biomechanical parameters and intermuscular comparability are scarce despite the important knowledge they would contribute to understanding PQ variations and their clinical implications. Thus, the purpose of this study is to investigate the biomechanical parameters and intermuscular comparability of asymmetrical PQ variations with reversed tendon aponeuroses.

Methods

A case of asymmetrical bilateral PQ variations was discovered during routine human cadaver dissection. The variations were photographed in situ with scale, and anatomical parameters of each muscle were measured. Mean postmortem fixed sarcomere states were evaluated via light microscopy to calculate a normalized maximal isometric force (Fmax) for each muscle. Intermuscular architectural comparability indices (δ2,1) were calculated between each muscle to indicate suitability as flap/autograft tissue.

Results

Despite differences in mass and Fmax, the left distal PQ muscle (PQd; 3.81 g; Fmax = 2.22 N), left proximal PQ muscle (PQp; 4.13 g; Fmax = 2.72 N), and right PQd (6.97 g; Fmax = 4.16 N) were architecturally indifferent (0.30 < δ2,1 < 0.80). However, each of these muscles were significantly different in structure (δ2,1 ≥ 0.80), size, and functional capability compared to the right PQp (0.87 g; Fmax = 0.79 N). Notably, each ipsilateral pair of variant PQ muscles exhibited reversed location of their tendon aponeuroses.

Conclusions

The PQ is encountered and utilized in many surgical procedures, including volar (modified Henry) or open reduction internal fixation (ORIF) approaches for surgically repairing a distal radius fracture. Chronic refractory myofascial pain in the distal forearm and DRUJ osteoarthritis may warrant differential evaluation for variations of the PQ. This report may provide new and important insights to orthopedists, clinical anatomists, and allied health professionals when diagnosing and treating patients with PQ variations.
旋前方肌(PQ)是前臂前房室深处的一块四边形肌肉,执行旋前和稳定远端尺桡关节(DRUJ)。尺侧常有薄而浅的肌腱膜。涉及生物力学参数和肌肉间可比性的非典型PQ形态的报道很少,尽管它们有助于理解PQ变异及其临床意义。因此,本研究的目的是研究不对称PQ变化与逆行腱膜的生物力学参数和肌间可比性。方法在常规人体解剖中发现2例不对称双侧PQ变异。用比例尺原位拍照,测量每块肌肉的解剖参数。通过光镜评估平均死后固定肌节状态,以计算每块肌肉的标准化最大等距力(Fmax)。计算每块肌肉之间的肌间结构相似性指数(δ2,1),以表明作为皮瓣/自体移植物组织的适宜性。结果左PQ远端肌(PQp; 3.81 g; Fmax = 2.22 N)、左PQ近端肌(PQp; 4.13 g; Fmax = 2.72 N)和右PQ远端肌(PQp; 6.97 g; Fmax = 4.16 N)在结构上无差异(0.30 < δ2,1 < 0.80)。然而,与右PQp (0.87 g; Fmax = 0.79 N)相比,这些肌肉在结构(δ2,1≥0.80)、大小和功能能力上均有显著差异。值得注意的是,每一对同侧变异PQ肌肉表现出肌腱腱膜的反转位置。结论PQ在许多外科手术中都有应用,包括掌侧(改良Henry)或切开复位内固定(ORIF)入路,用于桡骨远端骨折的手术修复。前臂远端慢性难治性肌筋膜疼痛和DRUJ骨关节炎可能需要鉴别评估PQ的变化。该报告可能为骨科医生、临床解剖学家和相关卫生专业人员在诊断和治疗PQ变异患者时提供新的重要见解。
{"title":"Biomechanical parameters and intermuscular comparability of asymmetrical pronator quadratus muscle variations with reversed tendon aponeuroses","authors":"Fischer A. Clarke ,&nbsp;Branden C. Fox ,&nbsp;Jessica Pillatzki ,&nbsp;Joseph X. Anders ,&nbsp;Robert E. Van Demark Jr. ,&nbsp;Ethan L. Snow","doi":"10.1016/j.tria.2025.100439","DOIUrl":"10.1016/j.tria.2025.100439","url":null,"abstract":"<div><h3>Background</h3><div>The pronator quadratus (PQ) is a quadrangular muscle deep in the anterior compartment of the forearm that executes pronation and stabilizes the distal radioulnar joint (DRUJ). A thin, superficial tendon aponeurosis is commonly present on its ulnar side. Reports of non-typical PQ morphologies involving biomechanical parameters and intermuscular comparability are scarce despite the important knowledge they would contribute to understanding PQ variations and their clinical implications. Thus, the purpose of this study is to investigate the biomechanical parameters and intermuscular comparability of asymmetrical PQ variations with reversed tendon aponeuroses.</div></div><div><h3>Methods</h3><div>A case of asymmetrical bilateral PQ variations was discovered during routine human cadaver dissection. The variations were photographed in situ with scale, and anatomical parameters of each muscle were measured. Mean postmortem fixed sarcomere states were evaluated via light microscopy to calculate a normalized maximal isometric force (<em>F</em><sub><em>max</em></sub>) for each muscle. Intermuscular architectural comparability indices (<em>δ</em><sub>2,1</sub>) were calculated between each muscle to indicate suitability as flap/autograft tissue.</div></div><div><h3>Results</h3><div>Despite differences in mass and <em>F</em><sub><em>max</em></sub>, the left distal PQ muscle (PQ<sub>d</sub>; 3.81 g; <em>F</em><sub><em>max</em></sub> = 2.22 N), left proximal PQ muscle (PQ<sub>p</sub>; 4.13 g; <em>F</em><sub><em>max</em></sub> = 2.72 N), and right PQ<sub>d</sub> (6.97 g; <em>F</em><sub><em>max</em></sub> = 4.16 N) were architecturally indifferent (0.30 &lt; <em>δ</em><sub>2,1</sub> &lt; 0.80). However, each of these muscles were significantly different in structure (<em>δ</em><sub>2,1</sub> ≥ 0.80), size, and functional capability compared to the right PQ<sub>p</sub> (0.87 g; <em>F</em><sub><em>max</em></sub> = 0.79 N). Notably, each ipsilateral pair of variant PQ muscles exhibited reversed location of their tendon aponeuroses.</div></div><div><h3>Conclusions</h3><div>The PQ is encountered and utilized in many surgical procedures, including volar (modified Henry) or open reduction internal fixation (ORIF) approaches for surgically repairing a distal radius fracture. Chronic refractory myofascial pain in the distal forearm and DRUJ osteoarthritis may warrant differential evaluation for variations of the PQ. This report may provide new and important insights to orthopedists, clinical anatomists, and allied health professionals when diagnosing and treating patients with PQ variations.</div></div>","PeriodicalId":37913,"journal":{"name":"Translational Research in Anatomy","volume":"41 ","pages":"Article 100439"},"PeriodicalIF":0.0,"publicationDate":"2025-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145010661","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Microarchitectural changes in the urethral wall after injecting hyaluronic acid based bulking agent (Zhoabex G): an experimental study in New Zealand white female rabbits 注射透明质酸填充剂后尿道壁微结构变化:新西兰白母兔实验研究
Q3 Medicine Pub Date : 2025-09-01 DOI: 10.1016/j.tria.2025.100438
Bhagath Kumar Potu , Diaa Rizk , Wael Amin Nasr El-Din , Aisha Rashid , Ammar Muhsen Marwani , Stefano Salvatore

Background

Stress urinary incontinence (SUI) is one of the most prevalent conditions in women that has a significant adverse effect on the quality of life. There is a wide variety of surgical treatment approaches for female SUI. Although many surgical procedures are available, all are associated with procedure-related complications. Urethral bulking agents (UBA's) have been perceived as the safest alternatives in this regard due to their tissue compatibility. This prompted us to explore a potential bulking agent composed of hyaluronic acid named “Zhoabex G”.

Methods

5-months-old female New Zealand white female rabbits (n = 27) weighing 2 kg ± 2.2 kg were used and divided into three equal groups: Group A (control group, n = 9) received no agent, Group B (sham group, n = 9) were injected with 0.5 ml of 10 % NaCl, and Group C (study group, n = 9) were injected with 0.5 ml of Zhoabex G (cross-linked hyaluronic acid). At the end of experiment, after 5 months, all rabbits were sacrificed under anesthesia. The urethrae were dissected from all the groups for histochemical and immunohistochemical studies to evaluate the effect of Zhoabex G (cross-linked hyaluronic acid) on the collagen content, urethral lumen diameter, epithelial thickness, extent of inflammation and vascularity in the urethral wall.

Results

Masson's trichrome stained sections revealed a mild increase in the collagen content of the submucosal layer of the urethra of Zhoabex G (cross-linked hyaluronic acid) treated group with a significant reduction in diameter of the urethral lumen and the epithelial thickness. Furthermore, immunostaining studies revealed a significant increase in the expression of CD31 antibodies (vascular endothelial cell markers) in Zhoabex G (cross-linked hyaluronic acid) treated group when compared to the control and sham groups, respectively. However, there was no statistically significant difference in the extent of inflammation in studied groups.

Conclusions

Results of this study suggest that the Zhoabex G (cross-linked hyaluronic acid) causes a significant cooptation of the urethral lumen in female rabbits.
背景:压力性尿失禁(stress urinary incontinence, SUI)是女性最常见的疾病之一,对生活质量有显著的不良影响。女性SUI的手术治疗方法多种多样。虽然有许多外科手术,但都伴有手术相关并发症。尿道膨胀剂(UBA)由于其组织相容性被认为是最安全的替代品。这促使我们探索一种由透明质酸组成的潜在填充剂,命名为“卓贝克斯G”。方法选用55月龄、体重为2 kg±2.2 kg的新西兰雌性白兔27只,随机分为3组:A组(对照组,n = 9)不给药,B组(假手术组,n = 9)注射10% NaCl 0.5 ml, C组(研究组,n = 9)注射交联透明质酸周贝丝G 0.5 ml。实验结束,5个月后,所有家兔在麻醉下处死。各组均解剖尿道进行组织化学和免疫组织化学研究,评价交联透明质酸(zoabex G)对胶原含量、尿道管腔直径、上皮细胞厚度、炎症程度和尿道壁血管的影响。结果smasson三色染色显示交联透明质酸治疗组尿道粘膜下层胶原蛋白含量轻度升高,尿道管腔直径和上皮厚度明显减小。此外,免疫染色研究显示,与对照组和假手术组相比,交联透明质酸治疗组CD31抗体(血管内皮细胞标志物)的表达显著增加。然而,在研究组的炎症程度上没有统计学上的显著差异。结论交联透明质酸(zoabex G)可引起雌性家兔尿道腔的明显改变。
{"title":"Microarchitectural changes in the urethral wall after injecting hyaluronic acid based bulking agent (Zhoabex G): an experimental study in New Zealand white female rabbits","authors":"Bhagath Kumar Potu ,&nbsp;Diaa Rizk ,&nbsp;Wael Amin Nasr El-Din ,&nbsp;Aisha Rashid ,&nbsp;Ammar Muhsen Marwani ,&nbsp;Stefano Salvatore","doi":"10.1016/j.tria.2025.100438","DOIUrl":"10.1016/j.tria.2025.100438","url":null,"abstract":"<div><h3>Background</h3><div>Stress urinary incontinence (SUI) is one of the most prevalent conditions in women that has a significant adverse effect on the quality of life. There is a wide variety of surgical treatment approaches for female SUI. Although many surgical procedures are available, all are associated with procedure-related complications. Urethral bulking agents (UBA's) have been perceived as the safest alternatives in this regard due to their tissue compatibility. This prompted us to explore a potential bulking agent composed of hyaluronic acid named “Zhoabex G”.</div></div><div><h3>Methods</h3><div>5-months-old female New Zealand white female rabbits (n = 27) weighing 2 kg ± 2.2 kg were used and divided into three equal groups: Group A (control group, n = 9) received no agent, Group B (sham group, n = 9) were injected with 0.5 ml of 10 % NaCl, and Group C (study group, n = 9) were injected with 0.5 ml of Zhoabex G (cross-linked hyaluronic acid). At the end of experiment, after 5 months, all rabbits were sacrificed under anesthesia. The urethrae were dissected from all the groups for histochemical and immunohistochemical studies to evaluate the effect of Zhoabex G (cross-linked hyaluronic acid) on the collagen content, urethral lumen diameter, epithelial thickness, extent of inflammation and vascularity in the urethral wall.</div></div><div><h3>Results</h3><div>Masson's trichrome stained sections revealed a mild increase in the collagen content of the submucosal layer of the urethra of Zhoabex G (cross-linked hyaluronic acid) treated group with a significant reduction in diameter of the urethral lumen and the epithelial thickness. Furthermore, immunostaining studies revealed a significant increase in the expression of CD31 antibodies (vascular endothelial cell markers) in Zhoabex G (cross-linked hyaluronic acid) treated group when compared to the control and sham groups, respectively. However, there was no statistically significant difference in the extent of inflammation in studied groups.</div></div><div><h3>Conclusions</h3><div>Results of this study suggest that the Zhoabex G (cross-linked hyaluronic acid) causes a significant cooptation of the urethral lumen in female rabbits.</div></div>","PeriodicalId":37913,"journal":{"name":"Translational Research in Anatomy","volume":"41 ","pages":"Article 100438"},"PeriodicalIF":0.0,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144933103","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Quantitative anatomy of the rotator cuff muscle in the human fetus based on the teres minor muscle 基于小圆肌的人胎儿肩袖肌的定量解剖
Q3 Medicine Pub Date : 2025-08-31 DOI: 10.1016/j.tria.2025.100435
Maciej Biernacki , Magdalena Grzonkowska , Michał Kułakowski , Alicja Szulc , Mariusz Baumgart

Background

The teres minor muscle is one of the components of the rotator cuff.
Particularly in terms of anatomical variability and prenatal development it is less thoroughly.
Described in current literature.

Objective

The aim of the present study was to examine the growth dynamics of the teres minor muscle in the human fetus, based on its linear and planar parameters.

Materials and methods

Using anatomical dissection, digital image analysis (NIS Elements AR 3.0), and statistical tools (Student's t-test, ANOVA, regression analysis), morphometric parameters of the teres minor muscle were measured in 36 human fetuses of both sexes (17♂, 19♀), aged 18–30 weeks of gestation.

Results

The teres minor muscle showed no significant sex- or side-related differences. Muscle length increased logarithmically with gestational age, while width, circumference, and projection surface area followed linear growth patterns.

Conclusion

The normative values obtained for the teres minor muscle may serve as a developmental reference for prenatal anatomical studies and have potential clinical relevance in pediatric imaging, surgery, and neonatology.
背景小圆肌是肩袖的组成部分之一。特别是在解剖学变异和产前发育方面它不太彻底。在当前文献中描述。目的根据胎儿小圆肌的线性和平面参数,研究胎儿小圆肌的生长动态。材料与方法采用解剖解剖、数字图像分析(NIS Elements AR 3.0)和统计学方法(Student’st检验、方差分析、回归分析),对36例18 ~ 30孕周男女胎儿(公17例,母19例)小圆肌的形态计量学参数进行了测定。结果小圆肌无明显的性别和侧方差异。肌肉长度随胎龄呈对数增长,而宽度、周长和投影表面积呈线性增长。结论获得的小圆肌的正常值可作为产前解剖学研究的发育参考,在儿科影像学、外科和新生儿学方面具有潜在的临床意义。
{"title":"Quantitative anatomy of the rotator cuff muscle in the human fetus based on the teres minor muscle","authors":"Maciej Biernacki ,&nbsp;Magdalena Grzonkowska ,&nbsp;Michał Kułakowski ,&nbsp;Alicja Szulc ,&nbsp;Mariusz Baumgart","doi":"10.1016/j.tria.2025.100435","DOIUrl":"10.1016/j.tria.2025.100435","url":null,"abstract":"<div><h3>Background</h3><div>The teres minor muscle is one of the components of the rotator cuff.</div><div>Particularly in terms of anatomical variability and prenatal development it is less thoroughly.</div><div>Described in current literature.</div></div><div><h3>Objective</h3><div>The aim of the present study was to examine the growth dynamics of the teres minor muscle in the human fetus, based on its linear and planar parameters.</div></div><div><h3>Materials and methods</h3><div>Using anatomical dissection, digital image analysis (NIS Elements AR 3.0), and statistical tools (Student's t-test, ANOVA, regression analysis), morphometric parameters of the teres minor muscle were measured in 36 human fetuses of both sexes (17♂, 19♀), aged 18–30 weeks of gestation.</div></div><div><h3>Results</h3><div>The teres minor muscle showed no significant sex- or side-related differences. Muscle length increased logarithmically with gestational age, while width, circumference, and projection surface area followed linear growth patterns.</div></div><div><h3>Conclusion</h3><div>The normative values obtained for the teres minor muscle may serve as a developmental reference for prenatal anatomical studies and have potential clinical relevance in pediatric imaging, surgery, and neonatology.</div></div>","PeriodicalId":37913,"journal":{"name":"Translational Research in Anatomy","volume":"41 ","pages":"Article 100435"},"PeriodicalIF":0.0,"publicationDate":"2025-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144933104","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Leonardo da Vinci: In search of the seat of the soul – Reflections on the anatomical and neuroanatomical explorations of a great master 列奥纳多·达·芬奇:寻找灵魂的座位——对一位伟大大师的解剖学和神经解剖学探索的反思
Q3 Medicine Pub Date : 2025-08-28 DOI: 10.1016/j.tria.2025.100433
Grzegorz Wysiadecki , Andrzej Dubrowski , Natalia Dysput , Julia Sypeń , Michał Bonczar , Patryk Ostrowski , Jakub Dębski , Piotr Wysocki , Nikola Haładaj , Roksana Haładaj , Magdalena Grzonkowska , Sara Kierońska-Siwak , Stanisław Orkisz , Andrzej Żytkowski

Background

The Renaissance was an era in which art, science, and philosophy converged in the pursuit of truth about human nature. Leonardo da Vinci combined the talent of an artist with the intellectual curiosity of a scholar and moved beyond the limitations of the epoch, producing anatomical studies that were exceptional and innovative. His observations—unpublished and therefore inaccessible to a wider audience for centuries—were remarkably ahead of their time, both in methodological approach and anatomical accuracy.

Aim

This paper offers reflections on selected anatomical and neuroanatomical concepts developed by Leonardo, placing them within the broader intellectual context of his epoch. The analysis aims primarily to reflect the intellectual climate that emerged with the rise of the Renaissance.

Conclusions

Leonardo da Vinci's methodological approach was groundbreaking and unprecedented for his time. It can be assumed that, had his anatomical works been published during his lifetime, they would have significantly influenced contemporary understanding of human anatomy and physiology. His research methods, including dissection techniques, were revolutionary and surpassed the limitations of the knowledge and technology of his era.
文艺复兴是一个艺术、科学和哲学为追求人性真理而融合在一起的时代。列奥纳多·达·芬奇将艺术家的天赋与学者的求知欲结合在一起,超越了时代的限制,产生了卓越而创新的解剖学研究。他的观察结果——几个世纪以来没有发表,因此更广泛的受众无法接触到——在方法论和解剖学的准确性方面都明显领先于他们的时代。目的本文对列奥纳多所提出的解剖学和神经解剖学概念进行了反思,并将其置于他那个时代更广泛的知识背景中。分析的主要目的是反映随着文艺复兴的兴起而出现的知识氛围。达芬奇的研究方法在他的时代是开创性的,史无前例的。可以假设,如果他的解剖学著作在他有生之年出版,它们将对当代人类解剖学和生理学的理解产生重大影响。他的研究方法,包括解剖技术,是革命性的,超越了他那个时代知识和技术的限制。
{"title":"Leonardo da Vinci: In search of the seat of the soul – Reflections on the anatomical and neuroanatomical explorations of a great master","authors":"Grzegorz Wysiadecki ,&nbsp;Andrzej Dubrowski ,&nbsp;Natalia Dysput ,&nbsp;Julia Sypeń ,&nbsp;Michał Bonczar ,&nbsp;Patryk Ostrowski ,&nbsp;Jakub Dębski ,&nbsp;Piotr Wysocki ,&nbsp;Nikola Haładaj ,&nbsp;Roksana Haładaj ,&nbsp;Magdalena Grzonkowska ,&nbsp;Sara Kierońska-Siwak ,&nbsp;Stanisław Orkisz ,&nbsp;Andrzej Żytkowski","doi":"10.1016/j.tria.2025.100433","DOIUrl":"10.1016/j.tria.2025.100433","url":null,"abstract":"<div><h3>Background</h3><div>The Renaissance was an era in which art, science, and philosophy converged in the pursuit of truth about human nature. Leonardo da Vinci combined the talent of an artist with the intellectual curiosity of a scholar and moved beyond the limitations of the epoch, producing anatomical studies that were exceptional and innovative. His observations—unpublished and therefore inaccessible to a wider audience for centuries—were remarkably ahead of their time, both in methodological approach and anatomical accuracy.</div></div><div><h3>Aim</h3><div>This paper offers reflections on selected anatomical and neuroanatomical concepts developed by Leonardo, placing them within the broader intellectual context of his epoch. The analysis aims primarily to reflect the intellectual climate that emerged with the rise of the Renaissance.</div></div><div><h3>Conclusions</h3><div>Leonardo da Vinci's methodological approach was groundbreaking and unprecedented for his time. It can be assumed that, had his anatomical works been published during his lifetime, they would have significantly influenced contemporary understanding of human anatomy and physiology. His research methods, including dissection techniques, were revolutionary and surpassed the limitations of the knowledge and technology of his era.</div></div>","PeriodicalId":37913,"journal":{"name":"Translational Research in Anatomy","volume":"41 ","pages":"Article 100433"},"PeriodicalIF":0.0,"publicationDate":"2025-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144920010","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Flexor carpi radialis brevis: A systematic review with cadaveric case analysis 桡侧腕屈肌:系统回顾与尸体个案分析
Q3 Medicine Pub Date : 2025-08-28 DOI: 10.1016/j.tria.2025.100432
Connor J. Groen , Shayla S. Rundberg , Ryan Prohofsky , Shaina L. Riggs , Ethan L. Snow

Background

Variant muscles such as the flexor carpi radialis brevis (FCRB) can have significant implications in orthopedic practice and hand function. However, a thorough biomechanical analysis and systematic review of FCRB are missing from the clinical literature. The purpose of this study is to conduct a biomechanical analysis of a FCRB and discuss its clinical implications in the context of a systematic review.

Methods

A FCRB was discovered during routine dissection of a human cadaver. Gross parameters of the muscle were collected, and the muscle was photographed. A tissue sample was collected and processed for histological analysis. Mean postmortem fixed sarcomere lengths were measured via digital light microscopy to calculate a normalized maximal isometric force (Fmax). The PRISMA 2020 framework was employed in conducting a systematic review of the literature.

Results

The 2.81 g unilateral right FCRB was unipennate in form. It originated along the anterolateral distal third of the radius and inserted onto the tubercle of the trapezium. The FCRB presented in a semi-contracted state. Normalization of the FCRB fascicle lengths yielded a Fmax of 13.38 N. Systematic review of 43 relevant articles suggests a mean FCRB prevalence of 3.12%.

Conclusions

A biomechanical analysis of a FCRB muscle, systematic review of FCRB articles, and a meta-analysis of FCRB pooled prevalence adds new and important information to the literature, providing improved context for discussing FCRB cases. Results from this study may serve as a useful reference for orthopedic physicians, radiologists, physical and occupational therapists, clinical anatomists, and medical educators.
背景:桡侧腕屈肌短肌(FCRB)等变型肌肉在骨科实践和手部功能中具有重要意义。然而,临床文献中缺乏对FCRB的全面生物力学分析和系统综述。本研究的目的是对FCRB进行生物力学分析,并在系统综述的背景下讨论其临床意义。方法在人体常规解剖过程中发现FCRB。采集肌肉的大体参数,并拍照。收集组织样本并进行组织学分析。通过数字光学显微镜测量死后固定肌节的平均长度,以计算归一化最大等距力(Fmax)。采用PRISMA 2020框架对文献进行系统综述。结果2.81 g单侧右侧FCRB呈单倍体形态。它起源于桡骨前外侧远端三分之一处并插入到斜方肌结节处。FCRB呈现半收缩状态。FCRB束长度归一化的Fmax为13.38 n,对43篇相关文章的系统评价表明,FCRB的平均患病率为3.12%。结论FCRB肌肉的生物力学分析、FCRB文献的系统回顾和FCRB综合发病率的荟萃分析为文献增加了新的重要信息,为讨论FCRB病例提供了更好的背景。本研究结果可供骨科医师、放射科医师、物理及职业治疗师、临床解剖学家及医学教育者参考。
{"title":"Flexor carpi radialis brevis: A systematic review with cadaveric case analysis","authors":"Connor J. Groen ,&nbsp;Shayla S. Rundberg ,&nbsp;Ryan Prohofsky ,&nbsp;Shaina L. Riggs ,&nbsp;Ethan L. Snow","doi":"10.1016/j.tria.2025.100432","DOIUrl":"10.1016/j.tria.2025.100432","url":null,"abstract":"<div><h3>Background</h3><div>Variant muscles such as the flexor carpi radialis brevis (FCRB) can have significant implications in orthopedic practice and hand function. However, a thorough biomechanical analysis and systematic review of FCRB are missing from the clinical literature. The purpose of this study is to conduct a biomechanical analysis of a FCRB and discuss its clinical implications in the context of a systematic review.</div></div><div><h3>Methods</h3><div>A FCRB was discovered during routine dissection of a human cadaver. Gross parameters of the muscle were collected, and the muscle was photographed. A tissue sample was collected and processed for histological analysis. Mean postmortem fixed sarcomere lengths were measured via digital light microscopy to calculate a normalized maximal isometric force (<em>F</em><sub><em>max</em></sub>). The PRISMA 2020 framework was employed in conducting a systematic review of the literature.</div></div><div><h3>Results</h3><div>The 2.81 g unilateral right FCRB was unipennate in form. It originated along the anterolateral distal third of the radius and inserted onto the tubercle of the trapezium. The FCRB presented in a semi-contracted state. Normalization of the FCRB fascicle lengths yielded a <em>F</em><sub><em>max</em></sub> of 13.38 N. Systematic review of 43 relevant articles suggests a mean FCRB prevalence of 3.12%.</div></div><div><h3>Conclusions</h3><div>A biomechanical analysis of a FCRB muscle, systematic review of FCRB articles, and a meta-analysis of FCRB pooled prevalence adds new and important information to the literature, providing improved context for discussing FCRB cases. Results from this study may serve as a useful reference for orthopedic physicians, radiologists, physical and occupational therapists, clinical anatomists, and medical educators.</div></div>","PeriodicalId":37913,"journal":{"name":"Translational Research in Anatomy","volume":"41 ","pages":"Article 100432"},"PeriodicalIF":0.0,"publicationDate":"2025-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144917424","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A concise historical sketch on the early anatomical understanding of peripheral nerves 对周围神经早期解剖学认识的简明历史概述
Q3 Medicine Pub Date : 2025-08-27 DOI: 10.1016/j.tria.2025.100434
Grzegorz Wysiadecki , Andrzej Dubrowski , Wojciech Przybycień , Natalia Dysput , Julia Sypeń , Michał Bonczar , Patryk Ostrowski , Jakub Dębski , Nikola Haładaj , Roksana Haładaj , Stanisław Orkisz , Andrzej Żytkowski

Background

In early medical traditions, the nervous system was not merely a subject of anatomical interest, but also a lens through which broader questions about life, sensation, and the soul were explored. Discussions of “nerves” addressed not only anatomical structures, but also vital, emotional, and even spiritual functions.

Aim

The aim of this concise historical sketch is to revisit how the concept of the nerve evolved throughout the history of anatomy — from its ancient roots to the point at which it entered the increasingly precise anatomical vocabulary during the Renaissance.

Conclusions

The concept of the nerve, as we understand it today, emerged gradually — grounded in ancient observations and philosophical reflections, and refined over centuries of anatomical inquiry. While successive corrections and innovations helped move anatomical knowledge toward greater precision, the early outlines of neuroanatomical thinking were already present in antiquity. Although modern terminology and classification systems were introduced much later, the foundations for understanding the structure and function of nerves were laid during the formative periods of medical science.
在早期的医学传统中,神经系统不仅是解剖学上的一个主题,而且是一个透镜,通过它可以探索有关生命、感觉和灵魂的更广泛的问题。关于“神经”的讨论不仅涉及解剖结构,还涉及生命、情感甚至精神功能。目的:这篇简明的历史概述的目的是重新审视神经的概念是如何在解剖学的历史上进化的——从它的古老根源到文艺复兴时期它进入越来越精确的解剖学词汇。神经的概念,正如我们今天所理解的,是逐渐出现的——基于古代的观察和哲学思考,并在几个世纪的解剖学研究中得到完善。虽然不断的修正和创新有助于解剖学知识向更精确的方向发展,但神经解剖学思维的早期轮廓在古代就已经存在了。尽管现代术语和分类系统是在很久以后才引入的,但在医学科学的形成时期,就为理解神经的结构和功能奠定了基础。
{"title":"A concise historical sketch on the early anatomical understanding of peripheral nerves","authors":"Grzegorz Wysiadecki ,&nbsp;Andrzej Dubrowski ,&nbsp;Wojciech Przybycień ,&nbsp;Natalia Dysput ,&nbsp;Julia Sypeń ,&nbsp;Michał Bonczar ,&nbsp;Patryk Ostrowski ,&nbsp;Jakub Dębski ,&nbsp;Nikola Haładaj ,&nbsp;Roksana Haładaj ,&nbsp;Stanisław Orkisz ,&nbsp;Andrzej Żytkowski","doi":"10.1016/j.tria.2025.100434","DOIUrl":"10.1016/j.tria.2025.100434","url":null,"abstract":"<div><h3>Background</h3><div>In early medical traditions, the nervous system was not merely a subject of anatomical interest, but also a lens through which broader questions about life, sensation, and the soul were explored. Discussions of “nerves” addressed not only anatomical structures, but also vital, emotional, and even spiritual functions.</div></div><div><h3>Aim</h3><div>The aim of this concise historical sketch is to revisit how the concept of the nerve evolved throughout the history of anatomy — from its ancient roots to the point at which it entered the increasingly precise anatomical vocabulary during the Renaissance.</div></div><div><h3>Conclusions</h3><div>The concept of the nerve, as we understand it today, emerged gradually — grounded in ancient observations and philosophical reflections, and refined over centuries of anatomical inquiry. While successive corrections and innovations helped move anatomical knowledge toward greater precision, the early outlines of neuroanatomical thinking were already present in antiquity. Although modern terminology and classification systems were introduced much later, the foundations for understanding the structure and function of nerves were laid during the formative periods of medical science.</div></div>","PeriodicalId":37913,"journal":{"name":"Translational Research in Anatomy","volume":"41 ","pages":"Article 100434"},"PeriodicalIF":0.0,"publicationDate":"2025-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144933105","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
期刊
Translational Research in Anatomy
全部 Acc. Chem. Res. ACS Applied Bio Materials ACS Appl. Electron. Mater. ACS Appl. Energy Mater. ACS Appl. Mater. Interfaces ACS Appl. Nano Mater. ACS Appl. Polym. Mater. ACS BIOMATER-SCI ENG ACS Catal. ACS Cent. Sci. ACS Chem. Biol. ACS Chemical Health & Safety ACS Chem. Neurosci. ACS Comb. Sci. ACS Earth Space Chem. ACS Energy Lett. ACS Infect. Dis. ACS Macro Lett. ACS Mater. Lett. ACS Med. Chem. Lett. ACS Nano ACS Omega ACS Photonics ACS Sens. ACS Sustainable Chem. Eng. ACS Synth. Biol. Anal. Chem. BIOCHEMISTRY-US Bioconjugate Chem. BIOMACROMOLECULES Chem. Res. Toxicol. Chem. Rev. Chem. Mater. CRYST GROWTH DES ENERG FUEL Environ. Sci. Technol. Environ. Sci. Technol. Lett. Eur. J. Inorg. Chem. IND ENG CHEM RES Inorg. Chem. J. Agric. Food. Chem. J. Chem. Eng. Data J. Chem. Educ. J. Chem. Inf. Model. J. Chem. Theory Comput. J. Med. Chem. J. Nat. Prod. J PROTEOME RES J. Am. Chem. Soc. LANGMUIR MACROMOLECULES Mol. Pharmaceutics Nano Lett. Org. Lett. ORG PROCESS RES DEV ORGANOMETALLICS J. Org. Chem. J. Phys. Chem. J. Phys. Chem. A J. Phys. Chem. B J. Phys. Chem. C J. Phys. Chem. Lett. Analyst Anal. Methods Biomater. Sci. Catal. Sci. Technol. Chem. Commun. Chem. Soc. Rev. CHEM EDUC RES PRACT CRYSTENGCOMM Dalton Trans. Energy Environ. Sci. ENVIRON SCI-NANO ENVIRON SCI-PROC IMP ENVIRON SCI-WAT RES Faraday Discuss. Food Funct. Green Chem. Inorg. Chem. Front. Integr. Biol. J. Anal. At. Spectrom. J. Mater. Chem. A J. Mater. Chem. B J. Mater. Chem. C Lab Chip Mater. Chem. Front. Mater. Horiz. MEDCHEMCOMM Metallomics Mol. Biosyst. Mol. Syst. Des. Eng. Nanoscale Nanoscale Horiz. Nat. Prod. Rep. New J. Chem. Org. Biomol. Chem. Org. Chem. Front. PHOTOCH PHOTOBIO SCI PCCP Polym. Chem.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:604180095
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1