Fig. 2From: Prediction of gap balancing based on 2-D radiography in total knee arthroplasty for knee osteoarthritis patientsRadiographic labeling and calibration of preoperative and postoperative X-rays. Labels on AP view demonstrated elements defined in Table 1. A & B, preoperative X-ray. C, osteophyte area. D, postoperative X-ray. E, calibration of magnificationBack to article page