Anconeus and pronation: a palpatory and ultrasonographic study.

IF 1.4 4区 医学 Q2 Medicine Surgical and Radiologic Anatomy Pub Date : 2024-09-01 Epub Date: 2024-07-23 DOI:10.1007/s00276-024-03399-6
Juan J Canoso, Jorge Murillo-González, José Ramón Mérida-Velasco, Robert A Kalish, Otto Olivas-Vergara, Cristina Gómez-Moreno, Eva García-Carpintero Blas, Gema Fuensalida-Novo, Esperanza Naredo
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Abstract

Purpose: Depending on its axis, pronation varies from the radius rotation around the steady ulna to the reciprocal adduction of the radius and abduction of the ulna. While there is no question that pronator teres is a central pronation agonist, anconeus's role is not settled. The current investigation comparing palpation and ultrasonography in these two muscles during pronation along the axis capitulum-second digit evolved from a serendipitous finding in a clinical anatomy seminar.

Methods: Single-hand palpation and two-transducer ultrasonography over anconeus and pronator teres were used on ten normal subjects to investigate their contraction during pronation around the capitulum-second digit axis. These studies were done independently and blind to the results of the other. The statistical analysis between palpation and ultrasonography was performed with Cohen's kappa coefficient and the χ2 test.

Results: On palpation, on resisted full pronation, anconeus contracted in 8/10 subjects and pronator teres in 10/10 subjects. Without resistance, the corresponding ratios were 5/10 and 9/10. On two-transducer ultrasonography, the comparable ratios were 7/10 and 10/10, and 3/10 and 10/10. A fair concordance (Cohen's kappa = 0.21) between palpation and ultrasonography in detecting the simultaneous status of anconeus and pronator teres during resisted full pronation. Anatomic dissection illustrated the elements involved.

Conclusions: Plain palpation confirmed by ultrasonography showed the simultaneous contraction of anconeus and pronator teres during resisted pronation in most of the studied subjects. The study suggests that palpation can be helpful in directly studying muscle activity during movement.

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Anconeus and pronation: a palpatory and ultrasonographic study.
目的:根据其轴线的不同,前伸动作从桡骨围绕稳定的尺骨旋转到桡骨的往复内收和尺骨的往复外展。毫无疑问,旋前肌是中心性的旋前激动剂,但 anconeus 的作用尚未确定。目前的研究比较了这两块肌肉在沿轴帽状肌-第二位数字前伸过程中的触诊和超声波检查,这是临床解剖研讨会上的一个偶然发现:方法:对十名正常受试者进行了单手触诊和双探头超声波检查,以研究他们在绕着帽状腱肌-第二位指轴线进行前伸运动时的收缩情况。这些研究都是独立完成的,并且对另一项研究的结果视而不见。触诊和超声波检查之间的统计分析采用科恩卡帕系数和χ2检验:结果:触诊时,在阻力作用下,8/10 名受试者的踝关节收缩,10/10 名受试者的代偿肌收缩。在无阻力的情况下,相应的比率分别为 5/10 和 9/10。在双传感器超声波检查中,相应的比率分别为 7/10 和 10/10 以及 3/10 和 10/10。触诊和超声波检查在检测阻力作用下完全前伸过程中踝关节和旋前肌的同时状态时具有相当的一致性(Cohen's kappa = 0.21)。解剖图显示了所涉及的要素:经超声波检查确认的普通触诊显示,在大多数研究对象中,在阻力性全伸时,脐肌和侧旋前肌同时收缩。研究表明,触诊有助于直接研究运动时的肌肉活动。
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来源期刊
Surgical and Radiologic Anatomy
Surgical and Radiologic Anatomy Medicine-Pathology and Forensic Medicine
CiteScore
2.40
自引率
14.30%
发文量
0
期刊介绍: Anatomy is a morphological science which cannot fail to interest the clinician. The practical application of anatomical research to clinical problems necessitates special adaptation and selectivity in choosing from numerous international works. Although there is a tendency to believe that meaningful advances in anatomy are unlikely, constant revision is necessary. Surgical and Radiologic Anatomy, the first international journal of Clinical anatomy has been created in this spirit. Its goal is to serve clinicians, regardless of speciality-physicians, surgeons, radiologists or other specialists-as an indispensable aid with which they can improve their knowledge of anatomy. Each issue includes: Original papers, review articles, articles on the anatomical bases of medical, surgical and radiological techniques, articles of normal radiologic anatomy, brief reviews of anatomical publications of clinical interest. Particular attention is given to high quality illustrations, which are indispensable for a better understanding of anatomical problems. Surgical and Radiologic Anatomy is a journal written by anatomists for clinicians with a special interest in anatomy.
期刊最新文献
Correction: Anconeus and pronation: a palpatory and ultrasonographic study. Correction: Radiological assessment of the dissection area in supraomohyoid neck dissection. Bilateral absence of the common femoral artery with high-origin and superficial course of the deep femoral artery: a rare case report. Cadaveric study on the arterial blood supply to the middle third nasal skin: implications for aesthetic and reconstructive surgery. Clinical implications of aberrant anatomy of the common hepatic duct in liver surgery: a systematic review and meta-analysis.
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