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OrthoVellum

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Hand & Upper Limb
intermediate
X-Type

Jersey Finger (FDP Avulsion) - Zones, Leddy Classification and Surgical Repair

Flexor Tendon Injuries

A 24-year-old rugby player presents after his finger was forcefully extended while he was gripping an opponent's jersey. He reports immediate pain and inability to flex the DIP joint of his ring finger. Examination reveals loss of active DIP flexion with the finger held in slight extension, tenderness in the palm, and a palpable mass at the A1 pulley level. The PIP joint flexion is intact. X-rays show a small bony fragment at the level of the proximal phalanx. The hand surgeon diagnoses a Leddy Type II FDP avulsion and discusses the timing and technique of surgical repair. Regarding jersey finger (FDP avulsion):

Mark each as TRUE or FALSE

A

JERSEY FINGER is FDP tendon avulsion from distal phalanx insertion; mechanism is FORCED EXTENSION of...

B

LEDDY AND PACKER CLASSIFICATION (based on tendon retraction): Type I - tendon retracts to PALM (disr...

C

Jersey finger affects index finger most commonly (ring finger rarely affected); mechanism is forced ...

D

DIAGNOSIS: clinical examination (loss of isolated DIP flexion with intact PIP); TENODESIS TEST (pass...

E

TREATMENT: SURGICAL repair almost always required (non-operative only in low-demand elderly); TIMING...

Answer the questions to see explanations

Click T (True) or F (False) for each option