No differences in patient-reported outcomes between medial pivot insert and symmetrical insert in total knee arthroplasty: A randomized analysis

This report has been verified by one or more authors of the original publication.

58 patients with knee osteoarthritis and varus deformity were scheduled for total knee arthroplasty, and randomized to either a high-flexion tibial tray with an asymmetric medial pivot design, which involved a dish medial compartment and flat lateral compartment, or a standard symmetrical dish tibial tray. Patients were assessed for knee range of motion and clinical scores after 3 weeks and 2 years. Results demonstrated no significant differences between the two groups in either total knee range of motion, range of motion in flexion, or Knee Society Scores. In addition, the incidence of complications was similar between groups, and no patient in either groups required revision.