Variant attachment of bicipital aponeurosis and presence of supernumerary extensor tendon for middle finger–a case report

Dr. Anjali Sabnis

Volume : III, Issue : XII, December - 2014

Variant attachment of bicipital aponeurosis and presence of supernumerary extensor tendon for middle finger–a case report

Dr. Anjali Sabnis

Abstract :

During routine undergraduate dissection of upper extremity of 70 years old male cadaver in the department of Anatomy at M .G. M Medical College, Navi Mumbai, variation in the extensor tendon for middle finger and in the insertion of bicipital aponeurosis was noted. Presence of additional extensor tendon slip for middle finger was noted on left side. We also observed on the same side that the bicipital aponeurosis gets its attachment on the proximal aspect of belly of flexor carpi radialis instead of blending with deep fascia of forearm. Median nerve compression may occur as the nerve passes below the short distance bicipital aponeurosis which is attached to flexor carpi radialis. Awareness regarding such variations in the hand may be helpful for hand surgeons to understand the pathogenesis in case of median nerve compression also awareness of variation in extensor tendons may be important while performing tendon transfer and grafts.