Trochlear Thickness and Its Effect on the Outcomes of Total Knee Arthroplasty

Total knee arthroplasty (TKA ) is the gold standard treatment for advanced knee osteoarthritis. only 85% (75% to 92%) of patients with total knee arthroplasty are satisfied with their operations and 30% develops patellofemoral complications. Numerous biomechanical studies suggest that patellofemoral tracking is not always restored to physiological values, because the prosthetic trochlea may differ from the native trochlea. no study has been con-ducted to investigate the thickness of the trochlear groove and its effect on the outcome of Total knee replacement (TKR), So many people has different measurements of trochlear thickness which may affect Patellofemoral joint (PFJ) so knowing of native trochlear thickness in patients with KNEE Osteoarthritis (OA) can affect the outcomes of total knee arthroplasty.