Ulnocarpal Impaction
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Updated: Oct 18, 2025

Metacarpal Small Incision for Carpal Tunnel Syndrome
Published on: April 5, 2024
Nico Leibig1, Florian M Lampert1, Max Haerle1
1Centre for Hand and Plastic Surgery, Orthopedic Clinic Markgröningen, Kurt-Lindemann-Weg 10, 71706 Markgröningen, Germany.
Abstract:
Ulnocarpal impaction syndrome is a common cause for ulnarsided wrist pain caused by an abutment between the ulnar head and the lunotriquetral complex. This pain is typically triggered by load bearing and rotation of the forearm. Radiographic examination is often associated with positive ulnar variance and cysts in the lunate, edema of the ulnoproximal lunate is shown in MRI. Operative treatment aims to reduce load on the lunate, either by open ulnar shortening osteotomy or arthroscopic wafer procedure.
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