Tendon Injuries
A 32-year-old chef sustains a glass laceration to his index finger at the level of the proximal phalanx. He cannot flex the DIP joint, and flexion of the PIP joint is weak with loss of independent flexion. Examination reveals a laceration within the flexor tendon sheath. Regarding flexor tendon zones:
Mark each as TRUE or FALSE
Zone II (the "no man's land") extends from the A1 pulley to the FDS insertion; both FDP and FDS tend...
Zone I is distal to the FDS insertion where only FDP is present; Zone III is the palm (lumbrical ori...
Zone II is the easiest zone to repair with best outcomes; Zone I injuries involve both FDP and FDS; ...
The pulley system is critical for mechanical efficiency; A2 and A4 pulleys are most important and sh...
Modern repair principles include: core suture strength of at least 4-strand (40-50N strength), epite...
Answer the questions to see explanations
Click T (True) or F (False) for each option