Fig 4.

Shown is our preferred location of the tourniquet and the lateral post, allowing for optimal valgus lever arm and ease of access into the medial compartment with wide hip abduction to allow space for the surgeon. This is helpful if medial open work is to be done and can prevent an internal rotation moment through the thigh and hip that deceases valgus opening of the medial joint space. Slight knee flexion is preferred. (Caud., caudal; Ceph., cephalad; L, left; R, right.)