The Knee, ISSN: 0968-0160, Vol: 16, Issue: 5, Page: 322-325

The St. Leger total knee replacement A 10-year clinical and radiological assessment

R. E. Gilbert; A. D. Carrothers; J. J. Gregory; M. J. Oakley

The St. Leger total knee replacement (Zynergy Orthopaedics Ltd, Rotherham, UK) was developed as a cheaper alternative to similar implants of its time. Between October 1993 and June 1999, 144 St. Leger total knee replacements were implanted into 114 patients. Seventy-three patients (99 knees) were recalled for assessment (mean follow-up of 10.2 years). Eighteen patients had had their prostheses revised, 11 had died and 12 were lost to follow-up. Functional Score showed 90% poor results and the Objective Knee Score showed 31% poor results. Radiological assessment identified 12 arthroplasties that had failed and 58 that required close follow. Kaplan–Meier cumulative survivorship was 87% at 10 years. The St. Leger knee replacement did not perform as well as others of the same generation and was not worth the initial financial savings.

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