Indications for and Results With the Swanson Distal Ulnar Prosthesis

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Abstract
Classically, wrist synovectomy, when the distal radioulnar joint is involved, includes excision of the distal ulna (the classical Darrach procedure). Orthopedists and rheumatologists are well aware of the propensity for extensor tendon rupture, particularly of the ring and little finger, in this area. Dr. Alfred Swanson has presented his results with a silastic interposition to substitute for the excision of the distal ulna. This paper presents a surgical technic, indications, and results in five cases of rheumatoid arthritis in which wrist synovectomy and repair of extensor tendon ruptures were done as appropriate. This distal ulnar prosthesis is recommended for routine use in wrist synovectomy when excision of the distal ulna is performed.

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