1. What are causes of flexor digitorum injury (Jersey finger)?
2. What is seen clinically in flexor digitorum injury?
3. What may be seen on imaging?
4. What is the treatment?
Answers:
1. Injury to the FDP or FDS may occur spontaneously in RA or trauma (finger gets caught in the jersey of another player when attempting to grab him.
2. Inability to actively flex DIP.
3. Plain film may show avulsed fragment near tendon insertion.
4. Early surgical repair.
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