OrthoNet

Ulnar nerve - volar approach

* position - supine with tourniquet

* incision
- curved incision following radial border of hypothenar eminence
- cross wrist joint obliquely at 60 deg
- extend incision onto volar aspect of distal forearm

* no internervous plane

* dissection
- identify FCU tendon
- incise fascia of tendon on radial border
- retract FCU ulnarly to expose ulnar n. & art.
- follow NV bundle distally & incise volar carpal ligament - decompresses Guyon’s canal

* dangers
- ulnar n.
> use care when incising fascia on radial side of FCU
> use care when incising volar carpal lig. distally