Patients undergoing staged bilateral knee arthroplasty are less aware of their kinematic aligned knee compared to their mechanical knee.

Objective: To compare knee joint awareness following kinematic alignment (KA) TKA in patients who had previously undergone mechanical alignment (MA) on their contralateral knee.

Methods: We performed a retrospective study of all consecutive patients who underwent staged bilateral TKA, the first using MA technique and the second utilizing the KA technique, without patient specific instrumentations. Primary outcome was assessed by the Forgotten Joint Score (FJS) with a minimum 1-year follow-up.