The Bicruciate Substituting Knee Design and Initial Experience

Total knee arthroplasty (TKA) is an excellent treatment option for patients with end-stage osteoarthritis; however, a significant number of patients are not satisfied postoperatively. Much of this dissatisfaction comes from persistent pain and difficulty regaining range of motion. We retrospectively reviewed 200 patients who underwent a primary unilateral TKA by a single surgeon from 2013 to 2014 at a single institution. All surgery was performed with computer-navigated guides to minimize surgical alignment error. In total, 100 patients underwent a TKA using a standard posterior stabilized (PS) prosthesis and the other 100 patients underwent TKA with an asymmetric bicruciate stabilized (BCS) prosthesis. There was no significant difference between groups in preoperative range of motion (P=0.07). Postoperatively, in the BCS group, average flexion was 119 degrees (range, 95 to 125 degrees) and in the standard PS group average flexion was 96 degrees (range, 85 to 116 degrees). There was a significant and clinically relevant improvement in flexion at 6 weeks in patients who underwent a TKA with a BCS implant (P
Source: Techniques in Orthopaedics - Category: Orthopaedics Tags: Symposium Source Type: research