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Tech Hand Up Extrem Surg. 2007 Mar;11(1):115-20.

Hemiarthroplasty of the distal ulna with an eccentric prosthesis.

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Hand and Upper Limb Centre, University of Western Ontario, St Joseph's Health Care, London, Ontario, Canada.


Replacement arthroplasty of the ulnar head is indicated primarily for stiffness and pain as a consequence of rheumatoid, degenerative, and posttraumatic arthritis of the distal radioulnar joint. It is also successfully used in the setting of previous failed excisional arthroplasty of the distal ulna. A distal ulnar hemiarthroplasty, which anatomically recreates the native ulnar head by employing an eccentric design, is discussed. The surgical technique includes a dorsal approach and careful repair of the soft tissue stabilizers.

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