This is a prospective observational study of 77 patients undergoing primary total knee arthroplasty using medial parapatellar or midvastus approach (37 midvastus, 40 medial parapatellar). The prosthetic design and physical intervention was standardised in all the patents. The Oxford Knee Score, pain scale, knee flexion, unassisted straight leg raise, standing and walking were compared at 3rd, 5th and 7th day postoperatively. These parameters were checked again at 6 weeks and at 3 months following the operation. The mean age was 71 years (range 48 to 88). There were 44 women and 33 men. The...