The St Georg sledge for unicompartmental replacement of the knee. A prospective study of 115 cases.
Since 1974, we have made a prospective study in Bristol of the results of unicompartmental knee replacement using the St Georg sledge prosthesis. A total of 115 knees in 100 patients have been followed up for 2 to 12 years (mean, 4 years 9 months). Results have assessed both by the Bristol knee score and by survivorship studies on the total series of 138 knees. Results were excellent or good in 86% and fair or poor in 14%. The survivorship study (based on a definition of failure which included significant pain or a dissatisfied patient or the need for revision) showed a cumulative success rate of 76.4% at six years, with no further failures after that time. Seven knees have been revised, in most cases for deterioration of the contralateral compartment. The operation is recommended as a satisfactory and durable form of treatment for osteoarthritis affecting a single tibiofemoral compartment.
Mackinnon
J
J
Bristol Royal Infirmary, England.
Young
S
S
Baily
R A
RA
D000328:Adult; D000368:Aged; D001172:Arthritis, Rheumatoid / Q000601:surgery; D005260:Female; D006801:Humans; D007719:Knee Joint / Q000000981:diagnostic imaging; D007720:Knee Prosthesis; D008297:Male; D008875:Middle Aged; D010003:Osteoarthritis / Q000601:surgery; D011183:Postoperative Complications; D011446:Prospective Studies; D011475:Prosthesis Failure; D011859:Radiography