OCAD MSK

History

31F volleyball player 3 weeks post injury

Figure 1 for case ulnar collateral ligament of metacarpophalangeal joint ( RID2336 ) — Figure 1

Figure 2 for case ulnar collateral ligament of metacarpophalangeal joint ( RID2336 ) — Figure 2

Figure 3 for case ulnar collateral ligament of metacarpophalangeal joint ( RID2336 ) — Figure 3

Discussion

There is a complete, retracted tear of the MCP UCL, which is dislocated superficial to the adductor aponeurosis (this is a Stener Lesion and is surgical).

There is a concomitant non-displaced avulsion fracture at the volar medial base of the proximal phalanx due to the ulnar sesamoid-phalangeal ligament (see arrows in Fig 2).

Anatomic summary diagram, Figure 3. Reference article.

Diagnosis

ulnar collateral ligament of metacarpophalangeal joint ( RID2336 )

Hilary Umans, MD

Courtesy

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