Gunston describes a new concept of knee replacement designed to reproduce the polycentric (multiple instant-centre) motion of the normal knee rather than act as a hinge. Separate cemented metal femoral runners and polyethylene tibial tracks resurface each condyle and plateau while the collateral and cruciate ligaments are retained. He reports early results in 22 knees in patients with rheumatoid polyarthritis.
Gunston describes a new concept of knee replacement designed to reproduce the polycentric (multiple instant-centre) motion of the normal knee rather than act as a hinge. Separate cemented metal femoral runners and polyethylene tibial tracks resurface each condyle and plateau while the collateral and cruciate ligaments are retained. He reports early results in 22 knees in patients with rheumatoid polyarthritis.