Figure 3.

A) Intra-operative view of transferring the pronator quadratus motor branch (i.e. anterior interosseous nerve) to the extensor carpi radialis motor branch (ECRB). B) After sectioning, the proximal stump of the anterior interosseous nerve (AIN) was flipped proximally for suturing to the extensor carpi radialis brevis motor branch, which was dissected and sectioned proximally, and flipped distally. The distal stump of the anterior interosseous nerve was sutured to a motor fascicle of the median nerve, (MN) end-to-end, to restore pronation.