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The patients' diaries completed during recovery following total knee arthroplasty (TKA) and bi-unicompartmental knee arthroplasty (UKA). Median a) pain and b) stiffness visual analogue scale (VAS) scores preoperatively, in recovery period (weeks 0 to 6), and at three months. The responses (c to i) are presented as the percentage of patients responding in the positive to each question.
