Fig. 1From: Impact of patellar height on unicompartment knee arthroplasty: does patella baja lead to an inferior outcome?a Pre-operative Blackburne-Peel index: a normal result, as measured by b/a, is 0.562. b A post-operative Blackburne-Peel index of 0.487 as measured by b/a, is classified as patella altaBack to article page