- Discussion:
- extends from base of palm or distal end of
transverse retinacular ligament
to transverse crease in the palm;
- extends just proximal to the IP joint and to the MP joint;
- in this region tendons are essentially free of a tendon sheath
- lacerations in zone III may affect
lumbricals inaddition to flexor tendons;
- damaged lumbrical is either repaired or excised depending on severity or
injury and the location of the laceration;
- if lumbricals are intact, it is left adjacent to
FDP repair;
- it is not wrapped around the repaired flexor;
-
lumbrical contracture is avoided if this muscle is not tightened
or manipulated excessively during the repair;
- if both tendons are lacerated, both are repaired, end to end with
circumferential reenforcing sutures;
- excision of the
superficialis tendon is not advised;
