The extensor hallucis capsularis tendon - A prospective study of its occurrence and function
The extensor hallucis capsularis tendon - A prospective study of its occurrence and function
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DOI：
10.1016/j.fas.2014.04.001
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发表时间：
2014-09-01
影响因子：
2.5
通讯作者：
Flueckiger, G.
中科院分区：
文献类型：
--
作者：
Bayer, T.;Kolodziejski, N.;Flueckiger, G.
背景：关于拇伸肌装置和副腱滑动的发生及其功能的数据不一致。我们进行这项研究，以澄清其解剖特点，并作出结论，其function.Methods：调查进行了前瞻性的手术矫正严重拇外翻和指间关节在60例连续。记录副伸肌腱的出现、位置、大小及附着方式。解剖牵引后的副肌腱进行，以获得有关其function.Results的信息：在矛盾与以前的研究报告的远端附件的拇伸肌装置与不同的副肌腱描述的众多变化，我们的调查显示出恒定的解剖特征。除1例（98.3%）外，所有病例均存在与主腱相邻的副内侧拇长伸肌腱，总是插入跖趾关节囊的背内侧。因此，我们选择了以前研究中使用的术语拇囊伸肌（EHC）。肌腱的术中测试表明，它施加预张力的跖趾关节（MTP）joint capsule.Conclusion：我们的研究显示出一致的解剖特征与发生的EHC肌腱在98.3%。我们确定它的功能是预张紧MTP关节囊，从而避免在拇趾伸展过程中关节囊撞击。在我们的研究中，EHC肌腱的高发病率也可能与MTP关节畸形相关，需要进一步的尸体研究来评估拇外翻发生的可能倾向。(c)2014年欧洲足踝协会。由爱思唯尔有限公司出版。保留所有权利。
Background: There is inhomogeneous data about the hallucal extensor apparatus and the occurrence of accessory tendon slips and their function. We performed this study to clarify its anatomical features and make conclusions about its function.Methods: Investigations were performed prospectively during operative correction of severe hallux valgus and interphalangeus in 60 consecutive cases. The occurrence, topographic location and size of accessory extensor tendons as well as the insertion patterns were recorded. After dissection traction of the accessory tendon was carried out to gain information about its function.Results: In contradiction to previous studies reporting numerous variations in the distal attachments of the hallucal extensor apparatus with different accessory tendons described, our investigations showed constant anatomical features. In all but one case (98.3%) there was an accessory medial extensor hallucis longus tendon adjacent to the main tendon, always inserting on the dorsomedial aspect of the metatarsophalangeal joint capsule. We therefore chose the terminology extensor hallucis capsularis (EHC) used in previous studies. The intraoperative testing of the tendon showed it to exert a pretension of the metatarsophalangeal (MTP) joint capsule.Conclusion: Our study showed consistent anatomical features with an occurrence of the EHC tendon in 98.3%. We determined that its function is to pretension the MTP joint capsule, therefore avoiding capsular impingement during hallucal extension. The high incidence of the EHC tendon in our study may also postulate a correlation with MTP joint deformities and further cadaveric studies will be necessary to evaluate a possible predisposition for hallux valgus genesis. (c) 2014 European Foot and Ankle Society. Published by Elsevier Ltd. All rights reserved.