Flexor Digitorum Superficialis to Anterior Interosseous Nerve Transfer

Video Description

For isolated anterior interosseous nerve palsies, the nerve to the flexor digitorum superficialis (FDS) is an available donor to innervate the anterior interosseous nerve (AIN) for transfer. The FDS and AIN branch are found branching from the median nerve within the same upper-middle forearm region. The nerve to the FDS branches from the median nerve on its ulnar aspect while the AIN branches from the median nerve on its radial aspect. Prior to the nerve transfer, the median nerve is decompressed and exposed by step-lengthening the superficial head of pronator teres, releasing the deep head of pronator teres, and releasing the proximal tendinous arch of FDS. The FDS to AIN nerve transfer is an available option to restore AIN function.

Table of Contents
00:30 Orientation
01:25 Incision / Exposure
02:14 Identification of the Branch of the Lateral Antebrachial Cutaneous Nerve
02:59 Identifying and Exposing the Brachioradialis
03:10 Identifying the Plane between Brachioradialis and Pronator Teres
05:08 Step-lengthening the Superficial Head of the Pronator Teres
07:45 Identification of the Median Nerve in the Proximal Forearm
08:05 Transecting the Deep Head of the Pronator Teres
08:33 Release the Arch of the Proximal Flexor Digitorum Superficialis
09:52 Identifying and Electrical Stimulating the Donor Flexor Digitorum Superficialis Nerve Branch
10:12 Identifying and Electrical Stimulating the Recipient Anterior Interosseous Nerve Branch
13:08 Distal Transection of the Donor Flexor Digitorum Superficialis Nerve Branch
13:46 Proximal Transection of the Recipient Anterior Interosseous Nerve Branch
13:57 Flexor Digitorum Superficialis to Anterior Interosseous Nerve Transfer
Narration: Susan E. Mackinnon
Videography: Andrew Yee