Kayani B, et al. - In this prospective study involving 140 patients, researchers analyzed the impact of anterior cruciate ligament (ACL) resection on flexion-extension gaps, mediolateral soft tissue laxity, maximum knee extension, and limb alignment during primary total knee arthroplasty (TKA). The sample consisted of patients with symptomatic knee osteoarthritis undergoing primary robotic-arm assisted TKA. According to findings, ACL resection produces flexion-extension mismatch by increasing the extension gap more than the flexion gap. Gap differences following ACL resection, however, do not create any mediolateral soft tissue laxity in extension or flexion. ACL resection does not alter maximum knee extension or overall limb alignment.