In two years, the knee operations numbered twenty-four, most of which comprised the success of the procedure. High tibial osteotomy was indicated in fifteen joints and relief of pain, an adequate functional range of motion and no recurrence of effusion were obtained. A new arthrosis in the proximal tibio-fibular joint was hazardous provided that the joint was left. Lateral instability, however, sustained invariably after the procedure.
Little loss of motions postoperatively in synovectomized joint usually was observed and was not associated either with pain or local recurrence.
Implants of various designs to replace the tibial and/or femoral surfaces have recently enjoyed considerably popularity. Hemi-arthroplasty by prosthesis of MacIntosh was done twice, Shiers once, and a new type of Geomedic once. We have not been able to formulate any general rule as to arthroplasty.
