Fig. 1From: Metal backed fixed-bearing unicondylar knee arthroplasties using minimal invasive surgery: a promising outcome analysis of 132 casesRadiograph of the lower extremity of a 68 year old male patient with a ZUK implanted, illustrating the measurement of the femoral condyle angle (a), the tibial plateau angle (b), the femoral flexion (c) and the tibial tilt (d). Positive values are defined as valgus, extension or positive tiltBack to article page