FESSH prep Compressive neuropathies ulnar nerve — anatomy, claw mechanism, nerve transfers
Ulnar nerve lesions — overview and reconstruction
Regarding ulnar nerve lesions and their reconstruction, which of the following statements are true?
1.Clawing of the ring and little fingers is more prominent in low (distal) than in high (proximal) ulnar nerve lesions — the ulnar paradox.
2.A supercharge end-to-side (SETS) transfer of the anterior interosseous nerve to the ulnar motor fascicle can augment a proximal ulnar nerve repair.
3.End-to-end transfer of the entire palmar cutaneous branch of the median nerve is the standard technique for restoring sensation in the ulnar territory after irreparable ulnar nerve injury.
4.A lesion confined to Guyon's canal spares dorsal hand sensation because the dorsal cutaneous branch of the ulnar nerve originates in the distal forearm, proximal to the canal.
5.Adding a distal AIN-to-ulnar motor nerve transfer to repair of a proximal ulnar nerve injury can shorten the regeneration distance to the intrinsic motor end-plates.
FESSH marking: +1 per correct statement, 0 for blank, −1 for incorrect. Click the same TRUE/FALSE button twice to clear it.