Fig. 4From: Effect of joint line orientation parameters on initial bone resection in mechanically aligned total knee arthroplasty: a retrospective clinicoradiological correlation studyPatients can be divided into 4 subgroups based on limb alignment and joint line orientation, represented by the following: (a) varus knee with mLDFA ≤ 90°; (b) varus knee with mLDFA > 90°; (c) valgus knee with MPTA ≤ 90°; and (d) valgus knee with MPTA > 90°.Back to article page