Fig. 5From: Three-dimensional preoperative planning in the weight-bearing state: validation and clinical evaluationCalculation of the joint line convergence angle in 3D. a The FCT is defined by the two most distal points, one on each condyle. b The TCT is found by defining the tibial plateau plane using user selected points on the plateau. C Both the FCT and the tibial plateau plane are projected to the frontal plane to find the JLCABack to article page