The St. Leger total knee replacement: a 10-year clinical and radiological assessment.
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.
Hereford County Hospital, Hereford, UK. drrobgilbert@hotmail.co.uk
R E
RE
Gilbert
A D
AD
Carrothers
J J
JJ
Gregory
M J
MJ
Oakley
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D019645:Arthroplasty, Replacement, Knee / Q000009:adverse effects / Q000191:economics* / Q000295:instrumentation*; D005260:Female; D006801:Humans; D007719:Knee Joint / Q000503:physiopathology / Q000601:surgery; D007720:Knee Prosthesis / Q000191:economics*; D008297:Male; D008875:Middle Aged; D020370:Osteoarthritis, Knee / Q000000981:diagnostic imaging / Q000601:surgery; D010014:Osteolysis / Q000000981:diagnostic imaging / Q000209:etiology; D010146:Pain / Q000209:etiology / Q000503:physiopathology; D011474:Prosthesis Design / Q000191:economics*; D011475:Prosthesis Failure; D011859:Radiography; D012086:Reoperation