Figure 4From: Study of surgical indication for knee arthroplasty by cartilage analysis in three compartments using data from Osteoarthritis Initiative (OAI) Differences in rate of optimal arthroplasty for subjects actually performed TKA and UKA. TKA: total knee arthroplasty, BKA: bicompartmental knee arthroplasty, and UKA: unicompartmental knee arthroplasty.Back to article page