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Published on: January 13, 2026
Arthroscopic Repair of Collateral Ligaments in Metacarpophalangeal Joints
Brenon L Abernathie1, Andrew J Lovy1, Steven M Koehler1
1Department of Plastic and Hand Surgery, New York University Medical Center, New York, New York, U.S.A.
Abstract:
Although typically reported in thumb and small fingers, collateral ligament ruptures of the metacarpophalangeal (MCP) joints have been described in all digits. Traditional open repair requires a dissection that violates the sagittal band and may result in increased scarring and decreased hand function. Arthroscopic repair of MCP collateral ligaments has not been previously described. We present a new technique for repairing MCP collateral ligaments arthroscopically.

