Gövsa Figen, Pinar Yelda, Celik Servet, Bilge Okan, Sezak Murat
Department of Anatomy, Faculty of Medicine, Ege University, İzmir, Turkey.
Acta Orthop Traumatol Turc. 2011;45(5):370-5. doi: 10.3944/AOTT.2011.2369.
A detailed anatomical knowledge of the extensor tendons of the hand is essential for accomplishing successful tendon repair. The aim of this study was to investigate the similarities between the extensor tendon and the thickest intertendinous connections (IC) in the 4th intermetacarpal space, where Type 3 IC is most frequently seen.
A total of 38 dissected hands were studied for anatomical structures that might serve as donor extensor tendons as well as for their relationship with the IC in the fourth intermetacarpal space of the dorsal hand.
The most frequent anatomical pattern in the extensor tendons of the fourth intermetacarpal space were the two tendons from the extensor digiti minimi muscle (68.5%) and the thickest type of IC (90%). Other common findings detected at microscopy included the presence of a capsule in the structures associated with the tendon and IC, rich vascularization and high collagen content.
Type 3 IC resembles tendons in strength and because of its histological similarity, the IC may be suitable to use in tendon repair. The fourth intermetacarpal space appeared to have the greatest tendon length and thickest IC content and is therefore a suitable donor graft tissue for local tendon repair.
对手部伸肌腱有详细的解剖学认识对于成功完成肌腱修复至关重要。本研究的目的是调查在第4掌骨间隙中伸肌腱与最厚的腱间连接（IC）之间的相似性，在该间隙中最常出现3型IC。
共研究了38只解剖手，观察可能作为供体伸肌腱的解剖结构及其与手背第4掌骨间隙中IC的关系。
第4掌骨间隙伸肌腱最常见的解剖模式是来自小指伸肌的两条肌腱（68.5%）和最厚类型的IC（90%）。显微镜下检测到的其他常见发现包括与肌腱和IC相关的结构中存在囊、丰富的血管化和高胶原含量。
3型IC在强度上类似于肌腱，并且由于其组织学相似性，IC可能适用于肌腱修复。第4掌骨间隙似乎具有最长的肌腱长度和最厚的IC含量，因此是用于局部肌腱修复的合适供体移植组织。
