Introduction: After a better understanding of normal knee anatomy and physiology, the
Kinematic Alignment (KA) technique was introduced to improve clinical outcomes of total
knee arthroplasty (TKA). The goal of the KA technique is to restore the pre-arthritic
constitutional lower limb alignment of the patient. There is, however, a large range of normal
knee anatomy. Unusual anatomies may be biomechanically inferior and affect TKA
biomechanics and wear patterns. In 2011, the leading author proposed the restricted …