... patterns of osteoarthritis of the knee joint in the community: The importance of the patellofemoral joint.” Annals of the Rheumatic Diseases 1992, 51(7):844-849 Ahlbäck S: “Osteoarthrosis of the knee: ... alignment in computer-assisted minimally-invasive unicompartmental knee replacement J Bone Joint Surg Br 2006, , 88-B: 44-48 17 Cossey AJ, Spriggins AJ: The use of computer-assisted surgical navigation ... significant using a Fisher exact test Comparing the Kennedy zones in our previous and present study, we found that the measurements matched in 10 knees, differing in 13 cases Of the 13 mismatches the most...