566 THE JOURNAL OF BONE AND JOINT SURGERY A NEW UNCONSTRAINED ELBOW A PROSPECTIVE REVIEW OF 60 REPLACEMENTS

Abstract

Sixty unconstrained elbow replacements of a new design have been followed prospectively for three to nine years. Review showed that 50 % had excellent relief of pain and return of function, 27 % had had major complications requiring removal or revision of the prosthesis and 23 % had minor complications which marred the result. Further research in this field seems worthwhile. The first two authors designed an elbow prosthesis which is known as the Roper-Tuke elbow. The first 60 inserted at the London Hospital have been followed for between three and nine years, the mean period for prostheses remaining in situ being 5.1 years. The components are completely unconstrained; the metal convex component is cemented to the humerus as a surface replacement, the polyethylene concave compo-nent is cemented to the ulna (Fig. 1). The radial head is excised and plays no further role in the stability of the joint. In later models the ulnar component has a stem (Fig. 2). The main indication for operation was severe pain in the elbow, except in one patient with ankylosing spondylitis, where loss of movement rather than pain was the major disability. PATIENTS AND METHODS A total of6O elbow replacements in 54 patients have been studied prospectively. Six patients had bilateral opera-tions, while in 28 patients the dominant and in 20 the non-dominant side was involved. The age of the patients ranged from 27 to 76 years (mean 60 years), only eight of them were men. There were 44 patients with rheumatoid arthritis, seven with osteoarthritis secondary to trauma, and one each with haemophilia, psoriasis, and ankylosing spondylitis. Th

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oai:CiteSeerX.psu:10.1.1.925.6522Last time updated on 11/1/2017

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