Indications of unicompartmental knee arthroplasty

There has been much variation concerning indications for unicompartmental knee arthroplasty (UKA). When the procedure was still considered developmental, one study recommended reserving UKA as a last resort before arthrodesis (1). Another study included patients wiThpatellectomy, an incompetent anterior cruciate ligament (ACL), or other incompetent ligaments (2).