Tendon Injuries
A 28-year-old chef presents 2 hours after a knife lacerated his right index finger at the level of the proximal phalanx. The finger rests in extension compared to the adjacent fingers. There is loss of active flexion at both the DIP and PIP joints. The wound is clean with no neurovascular deficit. Regarding flexor tendon anatomy and zone classification:
Mark each as TRUE or FALSE
Zone II (Bunnell's "no man's land") extends from the A1 pulley to the insertion of FDS on the middle...
The five flexor tendon zones are: Zone I (distal to FDS insertion), Zone II (A1 pulley to FDS insert...
In Zone II injuries, both FDS and FDP should always be repaired regardless of the injury pattern; re...
The A2 and A4 pulleys are the most biomechanically critical pulleys (arising from the proximal and m...
Clinical examination for FDP integrity involves testing DIP flexion with the PIP held in extension; ...
Answer the questions to see explanations
Click T (True) or F (False) for each option