- Discussion:
- tendon retracted to the palm, held up by the lumbrical origin
- tendon retracts into palm, severing all blood supply and creating extensive scarring in tendon sheath;
- vincula are ruptured;
- patients are tender in palm, but able to fully flex PIP joint;
- location of tendon end often corresponds to point of maximal tenderness in palm;
- repair within 7 to 10 days is required;
- in type I and II injuries the tendon end will enlarge after 10 days to such a size that it is impossible to thread the tendon
back thru the digital sheath