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Conservative versus surgical treatment of Gartland type II supracondylar humeral fractures in children. 儿童加特兰德 II 型肱骨髁上骨折的保守治疗与手术治疗。
IF 0.9 4区 医学 Q4 ORTHOPEDICS Pub Date : 2024-11-01 Epub Date: 2024-02-19 DOI: 10.1097/BPB.0000000000001170
Danjiang Zhu, Yuwei Wen, Qiang Wang, Baojian Son, Wei Feng

The purpose of the study was to compare the efficacy of conservative and surgical treatments for Gartland type II supracondylar humerus fractures in children. We assessed 142 patients with type II supracondylar humerus fractures treated in our hospital from February 2018 to February 2019. The patients were divided into two groups: initial conservative treatment (Group A) and initial surgical treatment (Group B). Clinical outcomes were measured by the Flynn scoring system. Variables were analyzed using a statistical approach between those groups. All patients were followed up for 6-12 months. The rate of loss reduction was 19.8% in patients treated conservatively, and the incidence of pin infections was 7.1% in patients treated surgically. Although there were no statistical differences between the three groups in fracture healing time and Flynn score, the conservative treatment was superior to surgical treatment in functional recovery times. At the last follow-up, all fractures had healed without iatrogenic vascular or nerve injury, Volkmann's contracture, or cubit varus deformity. Conservative treatment is safe and effective for the treatment of Gartland type II supracondylar fracture and represents a faster recovery time of elbow range of motion as compared with surgical treatment. Type IIB had a 41.3% risk of secondary displacement versus 5.3% for IIA, but we still prefer closed reduction. However, closed reduction of Garland type II must be followed accurately in the first 2 weeks to identify patients with loss of reduction. The patients who loss reduction can be treated with percutaneous pinning, and the clinical effect was consistent with immediate surgical treatment. Level of evidence: level III.

本研究旨在比较儿童Gartland II型肱骨髁上骨折保守治疗和手术治疗的疗效。我们对2018年2月至2019年2月在我院接受治疗的142例II型肱骨髁上骨折患者进行了评估。患者分为两组:初始保守治疗组(A组)和初始手术治疗组(B组)。临床结果采用 Flynn 评分系统进行测量。采用统计学方法对两组之间的变量进行分析。所有患者均接受了 6-12 个月的随访。保守治疗患者的损失减少率为 19.8%,手术治疗患者的针脚感染发生率为 7.1%。虽然三组患者在骨折愈合时间和 Flynn 评分上没有统计学差异,但在功能恢复时间上,保守治疗优于手术治疗。在最后一次随访中,所有骨折均已愈合,没有出现先天性血管或神经损伤、沃尔克曼氏挛缩或立方体屈曲畸形。保守治疗对治疗 Gartland II 型肱骨髁上骨折安全有效,与手术治疗相比,肘关节活动范围恢复时间更快。IIB 型发生二次移位的风险为 41.3%,而 IIA 型为 5.3%,但我们仍倾向于采用闭合复位术。不过,Garland II 型闭合复位术必须在头两周内进行准确跟踪,以识别复位丧失的患者。对于复位丧失的患者,可以采用经皮固定治疗,其临床效果与立即手术治疗一致。证据等级:三级。
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引用次数: 0
Conservative versus surgical treatment of Gartland type II supracondylar humeral fractures in children. 儿童加特兰德 II 型肱骨髁上骨折的保守治疗与手术治疗。
IF 0.9 4区 医学 Q4 ORTHOPEDICS Pub Date : 2024-11-01 Epub Date: 2024-10-01 DOI: 10.1097/BPB.0000000000001194
Andreas Rehm, Matthew Seah, Silvester Kabwama, Sebastian Ho, Ayla C Newton, Elizabeth Ashby
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引用次数: 0
Should we rethink the approach to osteochondromas in dangerous anatomical sites in multiple hereditary exostoses? 我们是否应该重新考虑处理多发性遗传性骨软骨病危险解剖部位骨软骨瘤的方法?
IF 0.9 4区 医学 Q4 ORTHOPEDICS Pub Date : 2024-11-01 Epub Date: 2024-10-01 DOI: 10.1097/BPB.0000000000001190
Nunzio Catena, Chiara Arrigoni, Valentina Camurri, Simone Riganti, Giorgio Marre' Brunenghi
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引用次数: 0
Dandy-Walker malformations with other complex congenital deformities associated with scoliosis: a case series. 丹迪-沃克畸形伴脊柱侧弯的其他复杂先天性畸形:病例系列。
IF 0.9 4区 医学 Q4 ORTHOPEDICS Pub Date : 2024-09-27 DOI: 10.1097/BPB.0000000000001213
Masayoshi Machida, Masafumi Machida, Katsuaki Taira, Naho Nemoto, Noboru Oikawa, Hirofumi Ohashi, Kazuyoshi Nakanishi

Dandy-Walker malformations (DWM) is a rare condition with an estimated prevalence of 1 in 30 000 cases. Although DWM often complicates scoliosis, its prevalence and the time of onset are unknown because only a few reports have described the association between scoliosis and DWM. This case series describes spinal deformity associated with DWM. The clinical records and spinal radiographs of 23 consecutive patients with DWM at a single centre were reviewed. DWM was clinically diagnosed if patients met the following three conditions: (1) posterior fossa enlargement, (2) cerebellar hypoplasia and (3) cystic dilation of the fourth ventricle on MRI. Radiological assessment records for the presence, prevalence and time of onset of DWM were studied. Twelve of 23 patients (52%) demonstrated a scoliotic deformity, with 3 (13%) having severe deformities exceeding 60°. The average age at diagnosis was 3.6 ± 2.9 years (range: 0.7-9.7) and at radiographic examination during the final follow-up was 8.7 years (range 1.0-22.0). Only two patients were skeletally mature. The coronal angular deformity at the final follow-up was 34.2 ± 32.3° (range: 10.1-125.1°). One patient with moderate deformity >25° died before bracing. In addition, of three patients with severe deformities, only one had undergone posterior spinal fusion. The prevalence of scoliosis in DWM was 52%, and all patients who developed scoliosis reported early-onset scoliosis under 10 years of age. Early diagnosis and screening of spine deformity are required for patients with DWM to prevent disease progression. Evidence level: 4.

丹迪-沃克畸形(Dandy-Walker malformations,DWM)是一种罕见疾病,发病率估计为1/30000。虽然DWM经常并发脊柱侧弯,但其发病率和发病时间尚不清楚,因为只有少数报道描述了脊柱侧弯与DWM之间的关联。本系列病例描述了与 DWM 相关的脊柱畸形。研究人员回顾了一个中心连续 23 例 DWM 患者的临床记录和脊柱X光片。如果患者符合以下三个条件,即可临床诊断为 DWM:(1) 后窝扩大;(2) 小脑发育不全;(3) 核磁共振成像显示第四脑室囊性扩张。研究人员对 DWM 的存在、发病率和发病时间进行了放射学评估记录。23名患者中有12人(52%)出现脊柱侧弯畸形,其中3人(13%)的严重畸形超过60°。确诊时的平均年龄为 3.6 ± 2.9 岁(范围:0.7-9.7 岁),最后随访期间接受放射学检查时的平均年龄为 8.7 岁(范围:1.0-22.0 岁)。只有两名患者骨骼发育成熟。最后随访时的冠状角畸形为 34.2 ± 32.3°(范围:10.1-125.1°)。一名中度畸形大于 25°的患者在支具安装前死亡。此外,在三名严重畸形的患者中,只有一人接受了脊柱后路融合术。DWM患者中脊柱侧弯的发病率为52%,所有出现脊柱侧弯的患者均在10岁以下早发。需要对DWM患者进行脊柱畸形的早期诊断和筛查,以防止疾病恶化。证据等级:4。
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引用次数: 0
Medium-long-term follow-up of slipped capital femoral epiphysis treated with in situ fixation and patient-acceptable symptom state evaluation. 采用原位固定和患者可接受的症状状态评估治疗股骨头骺滑脱的中长期随访。
IF 0.9 4区 医学 Q4 ORTHOPEDICS Pub Date : 2024-09-01 Epub Date: 2024-02-05 DOI: 10.1097/BPB.0000000000001157
Daniele Priano, Nicolò De Pascali, Valerio Caccavella, Francesco Puglia, Paolo Trezza, Antonio Memeo

This study evaluates the Patient Acceptable Symptom State (PASS) in patients with slipped capital femoral epiphysis (SCFE) treated with in situ fixation, focusing on medium to long-term outcomes and quality of life. Its primary goal is to establish a subjective well-being cutoff, using subjective methods and the iHOT33 scale, for assessing patients in future studies. Additionally, it explores functionality differences between mild and moderate-severe SCFE, case series epidemiology and potential complications. A retrospective analysis of 63 patients (73 hips), treated for SCFE between 2000 and 2017 at our facility using in situ fixation, was conducted. These patients underwent clinical, anamnestic, and radiological assessments, with PASS determined based on iHOT33 questionnaire results and statistical analysis. The mean age at surgery was 12.95 years (±1.64, range 9-17), with an average follow-up of 11 years (±4.60, range 5-20). At follow-up, 87% of patients reported achieving PASS, with higher iHOT33 scores correlating to PASS. A cutoff of >68 on the iHOT33 scale showed strong predictive ability for assessing PASS (area under the curve 0.857, 88.89% sensitivity, 79.69% specificity). The findings indicate that 87% of patients achieved PASS at medium to long-term follow-up, with better clinical function than those who did not report PASS. The iHOT33 scale's effectiveness in predicting PASS, especially with a cutoff of >68, suggests this method's efficacy. Given these positive outcomes, including in moderate-severe cases treated with in situ fixation, this approach is considered a viable therapeutic option.

本研究评估了接受原位固定治疗的股骨头骺滑脱(SCFE)患者的患者可接受症状状态(PASS),重点关注中长期疗效和生活质量。其主要目的是利用主观方法和 iHOT33 量表确定主观幸福感临界值,以便在今后的研究中对患者进行评估。此外,它还探讨了轻度和中度重度 SCFE 的功能差异、病例系列流行病学和潜在并发症。本研究对 2000 年至 2017 年期间在本院接受原位固定治疗的 63 名 SCFE 患者(73 个髋关节)进行了回顾性分析。这些患者接受了临床、解剖学和放射学评估,并根据 iHOT33 问卷调查结果和统计分析确定了 PASS。手术时的平均年龄为 12.95 岁(±1.64,范围为 9-17 岁),平均随访时间为 11 年(±4.60,范围为 5-20 年)。在随访中,87%的患者表示达到了PASS,iHOT33评分越高,PASS越高。iHOT33 量表中>68分的临界值对评估PASS具有很强的预测能力(曲线下面积为0.857,灵敏度为88.89%,特异度为79.69%)。研究结果表明,87% 的患者在中长期随访时达到了 PASS,其临床功能优于未报告 PASS 的患者。iHOT33 量表在预测 PASS 方面的有效性,尤其是在临界值大于 68 时,表明了这种方法的有效性。鉴于这些积极的结果,包括对中重度病例进行原位固定治疗的结果,这种方法被认为是一种可行的治疗方案。
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引用次数: 0
Femoral fractures and abuse in children under 36 months old: a Swiss case series. 36个月以下儿童的股骨骨折和虐待:瑞士系列案例。
IF 0.9 4区 医学 Q4 ORTHOPEDICS Pub Date : 2024-09-01 Epub Date: 2023-10-31 DOI: 10.1097/BPB.0000000000001140
Giacomo de Marco, Raimonda Valaikaite, Moez Chargui, Benoit Coulin, Oscar Vazquez, Anne Tabard-Fougère, Christina N Steiger, Romain Dayer, Dimitri Ceroni

Abuse should be suspected in infant femoral fractures without significant trauma, especially if the child is non-ambulatory. Review the epidemiological and radiological characteristics of femoral fractures in children under 36 months old to identify those potentially related to child abuse. Cases involving 102 patients presenting with 103 femoral fractures between January 1990 and December 2020 were investigated, paying close attention to mechanisms of injury, fracture patterns, and their possible relations to child abuse. The annual incidence of femoral fractures in patients under 36 months old was estimated at 24.6 per 100 000; the incidence in infants under 13 months was significantly higher than among children between 13 and 36 months old. Most infants under 13 months suffered from transverse or oblique metaphyseal/diaphyseal fractures (93.2%), whereas 67.8% of older children presented with spiral shaft fractures. Data confirmed child abuse in 4.9% of all patients (one with bilateral fractures); femoral fractures were incompatible with their reported mechanisms of injury in 31 patients (30.4%), whereas 12 fractures (11.8%) occurred in unexplained circumstances. More than 50% of femoral fractures occurred with low-energy trauma. The difference in patterns according to patients' ages suggested different mechanisms of trauma in ambulatory and non-ambulatory infants. Confirmed abuses and unclear or inconsistent mechanisms of trauma, raised potential total child abuse cases to 47.1% of our cohort. Level of evidence: Level IV.

在没有严重创伤的婴儿股骨骨折中,尤其是在儿童不能行走的情况下,应怀疑虐待行为。回顾36个月以下儿童股骨骨折的流行病学和放射学特征,以确定可能与虐待儿童有关的特征。调查了1990年1月至2020年12月期间发生103例股骨骨折的102名患者的病例,密切关注损伤机制、骨折模式及其与虐待儿童的可能关系。36个月以下患者股骨骨折的年发生率估计为24.6/100 000;13个月以下婴儿的发病率明显高于13至36个月大的儿童。大多数13个月以下的婴儿患有横向或斜向干骺端/骨干骨折(93.2%),而67.8%的年龄较大的儿童出现螺旋轴骨折。数据证实,4.9%的患者虐待儿童(其中一名患者双侧骨折);31名患者(30.4%)的股骨骨折与其报告的损伤机制不一致,而12名患者(11.8%)的骨折发生在不明原因的情况下。50%以上的股骨骨折发生在低能量创伤中。根据患者年龄的不同,模式的差异表明流动婴儿和非流动婴儿的创伤机制不同。已确认的虐待行为和不清楚或不一致的创伤机制,使潜在的虐待儿童案件总数上升到我们队列的47.1%。证据级别:四级。
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引用次数: 0
Patient-reported outcomes of adolescents with tibia shaft fractures: comparison of closed reduction and casting vs. elastic stable intramedullary nailing. 青少年胫骨干骨折患者报告的结果:闭合复位和铸造与弹性稳定髓内钉的比较。
IF 0.9 4区 医学 Q4 ORTHOPEDICS Pub Date : 2024-09-01 Epub Date: 2023-10-31 DOI: 10.1097/BPB.0000000000001138
Beltran Torres-Izquierdo, Abhishek Tippabhatla, Daniel E Pereira, Jason L Cummings, Asdrubal E Rivera, Zachary I Meyer, Pooya Hosseinzadeh

Tibial shaft fractures are the third most common pediatric long bone fractures. Closed reduction and casting (CRC) is considered initial treatment in this population, however, surgical management using elastic stable intramedullary nailing (ESIN) is also used in adolescents. This study compared patient-reported outcomes in a cohort of adolescents with tibia fractures treated with ESIN or CRC. This single-center retrospective study gathered adolescent patients 10-18 years of age with closed tibia shaft fractures between the years 2015 and 2021 treated by either CRC or ESIN. Measured outcomes include patient demographics, overall casting time, time to full weight bearing, time to full healing, radiographic healing, complications (loss of reduction, malunion >5° and >10°) and Patient-Reported Outcomes Measurement Information System (PROMIS) scores. A total of 141 patients (68% male) were included, with 31 receiving ESIN and 110 having CRC. Patient demographics were similar across groups. At follow-up, CRC had a significant shorter time to healing (11 vs. 15 weeks), but an increased casting duration (7 vs. 4 weeks). Finally, the ESIN group had significantly greater pre-intervention angulation, displacement, and shortening. In both interventions, mobility and pain interference scores showed significant improvements from baseline (2 weeks post-op) at 12, 16, and 24 weeks. No statistically significant differences were noted between CRC and ESIN groups across PROMIS domains of pain interference and mobility. CRC and ESIN are effective in improving pain and mobility in adolescent diaphyseal tibia fractures, but neither intervention is superior based on PROMIS scores at 12, 16 and 24+ weeks. From a patient standpoint, we demonstrate that neither treatment is superior in achieving better-perceived mobility or decreasing pain sooner. Level of Evidence: Level III.

胫骨干骨折是第三常见的儿童长骨骨折。闭合复位和铸造(CRC)被认为是该人群的初始治疗,然而,使用弹性稳定髓内钉(ESIN)的手术治疗也用于青少年。这项研究比较了接受ESIN或CRC治疗的青少年胫骨骨折患者报告的结果。这项单中心回顾性研究收集了2015年至2021年间接受CRC或ESIN治疗的10-18岁闭合性胫骨干骨折青少年患者。测量结果包括患者人口统计数据、整体铸造时间、完全负重时间、完全愈合时间、放射学愈合、并发症(复位损失、畸形愈合>5°和>10°)和患者报告结果测量信息系统(PROMIS)评分。共纳入141名患者(68%为男性),其中31名接受ESIN治疗,110名患有CRC。各组患者的人口统计数据相似。在随访中,CRC的愈合时间显著缩短(11周对15周),但铸造持续时间增加(7周对4周)。最后,ESIN组的介入前角度、位移和缩短明显更大。在这两种干预措施中,在12、16和24周时,活动能力和疼痛干扰评分均较基线(术后2周)有显著改善。CRC组和ESIN组在疼痛干扰和活动性的PROMIS领域没有统计学上的显著差异。CRC和ESIN在改善青少年胫骨骨干骨折的疼痛和活动性方面是有效的,但根据12周、16周和24周以上的PROMIS评分,这两种干预措施都不优越。从患者的角度来看,我们证明,这两种治疗方法在实现更好的行动能力或更快地减轻疼痛方面都不优越。证据级别:三级。
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引用次数: 0
Shedding light on slipped capital femoral epiphysis: a nationwide study on Turkish population. 揭示股骨头骺滑脱的真相:一项针对土耳其人口的全国性研究。
IF 0.9 4区 医学 Q4 ORTHOPEDICS Pub Date : 2024-09-01 Epub Date: 2023-12-29 DOI: 10.1097/BPB.0000000000001155
Murat Taşci, Yalçin Turhan, Niyazi Erdem Yaşar, İbrahim Bozkurt, Ebru Dumlupinar, Naim Ata, M Mahir Ülgü, Şuayip Birinci, İzzet Bingöl

Objectives: This comprehensive study aimed to describe the epidemiologic and demographic distribution of slipped capital femoral epiphysis (SCFE) in Türkiye, a condition that globally presents at a rate of 10.8 cases per 100 000 children. Utilizing data from the Ministry of Health, we examined the specifics of SCFE in Türkiye, comparing the findings with those of other populations to clarify the country's unique epidemiological profile.

Methods: In this retrospective analysis, the Ministry of Health's database was used to extract medical records of children under the age of 16 diagnosed with SCFE from 2016 to 2023. Patients were evaluated based on sex, age at diagnosis, comorbidities, complications, time of diagnosis and BMI.

Results: Our analysis identified 720 children with SCFE, with the average age at diagnosis being 12.9 years. The prevalence of SCFE in Türkiye was found to be 0.005% for the year 2022. The occurrence of SCFE showed no correlation with seasons. It was noted that the majority of patients received treatment at university and high-level hospitals (59.9%), with none being treated at lower-level public hospitals. A total of 58 patients were found to have additional growth and developmental diseases. Notably, only 33 cases (4.6%) involved avascular necrosis during follow-up.

Conclusion: This study provides the first epidemiological and demographic analysis of SCFE in Türkiye. Interestingly, our data suggest that male patients are twice as likely to develop SCFE compared to their female counterparts.

研究目的这项综合研究旨在描述土耳其股骨头骺滑脱(SCFE)的流行病学和人口分布情况,这种疾病的全球发病率为每 10 万名儿童中有 10.8 例。利用卫生部提供的数据,我们研究了土耳其 SCFE 的具体情况,并将研究结果与其他国家的数据进行了比较,以明确该国独特的流行病学特征:在这项回顾性分析中,我们利用卫生部的数据库提取了 2016 年至 2023 年期间被诊断为 SCFE 的 16 岁以下儿童的医疗记录。根据性别、确诊年龄、合并症、并发症、确诊时间和体重指数对患者进行评估:我们的分析确定了720名患有SCFE的儿童,诊断时的平均年龄为12.9岁。2022年,SCFE在土耳其的发病率为0.005%。SCFE的发生与季节无关。研究发现,大多数患者在大学和高级医院接受治疗(59.9%),没有患者在较低级别的公立医院接受治疗。共有 58 名患者被发现患有其他生长发育疾病。值得注意的是,只有 33 例(4.6%)患者在随访期间出现了血管性坏死:本研究首次对土耳其的 SCFE 进行了流行病学和人口统计学分析。有趣的是,我们的数据表明,男性患者罹患 SCFE 的几率是女性患者的两倍。
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引用次数: 0
Systematic review of paediatric pulseless pink humerus supracondylar fractures. 儿科无脉搏粉红肱骨髁上骨折的系统回顾。
IF 0.9 4区 医学 Q4 ORTHOPEDICS Pub Date : 2024-09-01 Epub Date: 2023-12-14 DOI: 10.1097/BPB.0000000000001149
Wei Chong Keith Goh, Eric J Y Ong, Nicole Kim Luan Lee, Arjandas Mahadev, Kenneth P L Wong

The supracondylar humeral fracture (SCHF) is the most common fracture seen in children, forming up to 70% of all pediatric elbow fractures. The decision to surgically explore the brachial artery in a well-perfused, pulseless arm remains a controversial one among vascular and orthopedic surgeons and is something we seek to explore in this article. We reviewed the literature from electronic databases such as PubMed and Embase for studies focusing on the management of the pink pulseless hand (PPH) following SCHF. We gathered a total of 23 articles to be analyzed in this review. We found 336 PPH postreduction and evaluated the management as well as the follow-up and complications of the PPH involved. Most recent articles have cited the close observation strategy as the most reliable strategy. It is clear that the management of a SCHF requires immediate reduction and fixation. In the management of a postoperatively pulseless pink humerus, we do agree with the latest conclusion of Delionitis et al . who advocate the traditional dogma of watchful waiting in the case of a PPH postreduction and fixation as long as no signs of vascular deterioration appear. However, the outcome of this study also advocates for the monitoring of up to 24-48 h postreduction and the use of noninvasive tools such as ultrasound Doppler, Color flow duplex Ultrasound and pulse oximetry to monitor perfusion as they all have had good outcomes in the articles cited in this review. Still, in the event of vascular deterioration or development of complications of the hand, immediate vascular exploration is still indicated.

肱骨髁上骨折(SCHF)是儿童最常见的骨折,占所有小儿肘部骨折的70%。血管外科医生和骨科医生对是否对血流灌注良好、无搏动的手臂进行肱动脉手术仍存在争议,本文将对此进行探讨。我们从 PubMed 和 Embase 等电子数据库中查阅了有关 SCHF 术后粉红无脉搏手 (PPH) 处理的研究文献。我们共收集了23篇文章进行分析。我们发现了 336 例减少后的 PPH,并对相关 PPH 的处理、随访和并发症进行了评估。最近的大多数文章都认为密切观察策略是最可靠的策略。显然,SCHF 的处理需要立即进行缩窄和固定。在处理术后无脉搏的粉红肱骨时,我们确实同意 Delionitis 等人的最新结论,他们主张在 PPH 切除和固定术后,只要没有出现血管恶化的迹象,就应遵循观察等待的传统教条。不过,本研究结果也主张在减压后 24-48 小时内进行监测,并使用超声多普勒、彩色血流双相超声和脉搏血氧仪等无创工具监测灌注,因为在本综述引用的文章中,这些工具都取得了良好的效果。不过,如果手部血管恶化或出现并发症,仍需立即进行血管探查。
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引用次数: 0
Interference screw versus suture button fixation for tibialis anterior tendon transfer: a biomechanical analysis. 干扰螺钉与缝线扣固定治疗胫骨前肌腱转移:生物力学分析。
IF 0.9 4区 医学 Q4 ORTHOPEDICS Pub Date : 2024-09-01 Epub Date: 2023-10-31 DOI: 10.1097/BPB.0000000000001131
Zachary Meyer, Daniel Bohl, Jacob Zide, William Pierce, Brad Niese, Claire Shivers, Jordan Polk, Yassine Kannan, Anthony I Riccio

Tibialis anterior tendon (TAT) transfer to the lateral cuneiform is commonly utilized to treat dynamic supination for relapsed clubfoot deformity. Traditional suture button fixation (SBF) may lead to skin necrosis at the button/skin interface. While interference screw fixation (ISF) would mitigate this concern, this fixation method has not been investigated in clubfoot patients. This study aims to investigate the performance of ISF versus SBF for TAT transfer in a cadaveric model. Ten matched pairs of cadaveric feet were obtained. One of each matched specimen underwent TAT transfer to the lateral cuneiform using ISF and the other underwent TAT transfer using SBF. For each ISF specimen, the tension of the transferred TAT required to bring the ankle to neutral was measured. This tension was then applied to both matched specimens using an MTS machine. Tension dissipation was measured after a 20-minute interval. In specimens with SBF, a load cell was positioned between the plantar skin and suture button to determine plantar skin pressure at the time of initial tension application. Average tension necessary to achieve neutral dorsiflexion was 49.4 N. Average tension dissipation after 20 min was significantly less in the IFS group (20 N versus 23.6 N, P  = 0.02). No fixation failures occurred in either group. Average plantar foot skin pressure was 196.5 mmHg at initial tension application, exceeding thresholds for tissue ischemia. ISF allows for tendon tensioning at forces beyond those expected to result in skin necrosis with SBF with less dissipation of tension over time.

胫骨前肌腱(TAT)转移到外侧楔形肌通常用于治疗复发性马蹄内翻足畸形的动态仰卧位。传统的缝合按钮固定(SBF)可能导致按钮/皮肤界面处的皮肤坏死。虽然干涉螺钉固定(ISF)可以减轻这种担忧,但这种固定方法尚未在马蹄内翻足患者中进行研究。本研究旨在研究尸体模型中ISF与SBF在TAT转移中的性能。获得了10对匹配的尸体脚。每个匹配样本中的一个使用ISF进行TAT转移到侧楔形文字上,另一个使用SBF进行STAT转移。对于每个ISF样本,测量将脚踝置于中性所需的转移TAT的张力。然后使用MTS机器将该张力施加到两个匹配的试样上。在间隔20分钟后测量张力耗散。在患有SBF的标本中,将测压元件放置在足底皮肤和缝合按钮之间,以确定初始施加张力时的足底皮肤压力。实现中性背屈所需的平均张力为49.4 N.20后的平均张力耗散 min明显低于IFS组(20 N与23.6 N、 P = 0.02)。两组均未发生固定失败。足底平均皮肤压力为196.5 mmHg,超过组织缺血阈值。ISF允许肌腱在超出预期的力的情况下张紧,从而导致SBF的皮肤坏死,并且随着时间的推移,张力的消散较少。
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Journal of Pediatric Orthopaedics-Part B
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