Gamekeeper's Thumb (Skier's Thumb)

Joseph A. Gagliardi, MD; Ambika Agarwal, MD

Disclosures

Appl Radiol. 2012;41(7-8):29c-29d. 

In This Article

Imaging Findings

AP and lateral radiographs showed a fracture at the base of the proximal phalanx of the thumb (Figure 1). A small osseous fragment was noted on the ulnar side of the first metacarpophalangeal (MCP) joint (Figure 2). A concave defect was noted in the base of the proximal phalanx of the thumb, consistent with a "donor site." This location is the attachment site of the ulnar collateral ligament, one of the 2 collateral ligaments of the first MCP joint.

Figure 1.

AP radiograph displaying a subtle fracture at the base of proximal phalanx of the first digit.

Figure 2.

Lateral radiograph displaying a small osseous fragment on the ulnar side of the first MCP joint (red arrow). A concave defect is noted in the base of the proximal phalanx of the thumb, which is the attachment site of the ulnar collateralurtis

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