A patient presents with inability to flex the DIP joint of the ring finger after a forced extension injury while gripping a rugby jersey. No bony avulsion is seen on X-ray. What is the most likely diagnosis and preferred treatment?
- A Jersey finger (FDP avulsion); surgical reinsertion of the tendon within 7–10 days ✓
- B Mallet finger; dorsal splinting in extension
- C Boutonniere deformity; buddy strapping and physiotherapy
- D Trigger finger; corticosteroid injection
Correct answer: A. Jersey finger (FDP avulsion); surgical reinsertion of the tendon within 7–10 days
Explanation
Jersey finger is avulsion of the FDP tendon from its insertion on the distal phalanx, classically occurring in the ring finger during forceful gripping sports. The patient cannot actively flex the DIP joint. Treatment requires surgical reattachment using a pullout suture or suture anchor, ideally within 7–10 days before tendon retraction and secondary changes occur. Mallet finger involves the extensor mechanism; boutonniere is a PIP-level extensor disruption; trigger finger is stenosing tenosynovitis.
Reference: Maheshwari Essential Orthopaedics, 6th ed.
High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP
Written and medically reviewed by the StethoPrep medical team.