Open AccessAn Anomalous Accessory Extensor Indicis Proprius Muscle: A Case Report
Author(s) -
Mustafa Kürklü,
Selim Türkkan,
Muzaffer Durmuş,
Harun Yasin Tüzün,
Yalçın Külahçi
Publication year - 2014
Publication title -
el ve mikrocerrahi
Language(s) - English
Resource type - Journals
ISSN - 2146-1155
DOI - 10.5455/handmicrosurg.165191
Subject(s) - anatomy , tendon , ulna , cadaver , medicine , metacarpophalangeal joint , dissection (medical) , thumb
Variations related to tendon insertion and musculotendinous junction of the extensor proprius indicis muscle are commonly encountered. An anomalous extensor indicis proprius muscle (EIP) tendon was detected in a fifty-year-old female cadaver during routine dissection of the right upper extremity. The body of tendon was initiated from the posterior ulna as a one muscle body, then continued as two separate muscle bodies and tendons and finally they were separated into two slips after passing the fourth dorsal compartment. As a radial part, it was divided into two slips at the level of the first metacarpophalangeal joint, and conjugated with the extensor pollicis longus (EPL) muscle. Then, as an ulnar part, it was terminated at the radial side of the lateral band of the second metacarpophalangeal joint. Familiarity with the normal anatomy and variations of the tendons may help to prevent confusion and mistakes during tendon repairs, and tendon transfers. [Hand Microsurg 2013; 2(3.000): 122-124