[Knee replacement with a St. Georg prosthesis]

Fifty-six St. Georg prostheses (23 unicompartmental and 33 bicompartmental) were introduced and 34 of these patients were followed-up with a mean period of observation of 4.6 years (2.1-8.9). The results were assessed according to the New York Hospital for Special Surgery Knee Rating Scale. Out of the unicompartmental replacements, 15 out of 19 obtained excellent or good results in contrast to 14 out of the 28 bicompartmental replacements. The St. Georg prostheses may be recommended for treatment of unicompartmental arthrosis. This review suggest that bicompartmental St. Georg prostheses provide unsatisfactory results compared with the results obtained with total condyle prostheses.