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Closed Partial Flexor Digitorum Profundus Rupture: An Unusual Cause of Pediatric Trigger Finger
Shane R Jackson1, Meily Tan2, Kim O Taylor1
11 Eastern Health, Box Hill, Victoria, Australia.
Background:
Trigger finger is a common condition, causing impaired gliding of the digital flexor tendons. Chronic inflammation is the usual cause, but acute trigger finger following partial tendon laceration has also been described.
Methods:
We describe the case of a four year old girl who presented with inability to flex her index finger. Operative exploration revealed a closed partial rupture of the flexor digitorum profundus tendon, catching on the A2 pulley and preventing normal tendon gliding.
Results:
Excision of the damaged section of tendon allowed normal gliding motion, and once the wound had healed the patient regained full painless motion.
Conclusion:
Acute trigger finger caused by partial flexor tendon injury is an uncommon but well-documented presentation. Surgical exploration not only confirms the diagnosis, but allows for excision of the damaged segment to return normal movement without compromising strength.
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