Related Experiment Video
Updated: Mar 29, 2026
Treatment of Ankle Osteoarthritis with Total Ankle Replacement Through a Lateral Transfibular Approach
Published on: January 24, 2018
Does Malrotation of the Tibial and Femoral Components Compromise Function in Kinematically Aligned Total Knee
Alexander J Nedopil1, Stephen M Howell2, Maury L Hull3
1Department of Orthopaedics, University of California, Davis, 4860 Y Street, Suite 3800, Sacramento, CA 95817, USA.
Abstract:
Internal and external malrotation of the femoral and tibial components is associated with poor function after total knee arthroplasty (TKA). We determined the degree of malrotation for both components in kinematically aligned TKA and whether this malrotation compromised function. Seventy-one patients (mean age 68 years) were followed after TKA. Malrotation was measured. Simple regression determined the association between malrotation and function. Even though the range of malrotation of the tibial component can be greater than that of the femoral component, the malrotation of the femoral and tibial components bounded by the ranges reported in this study is compatible with a well-functioning TKA.
Related Concept Videos
01:16Bones of the Lower Limb: Femur and Patella
01:23Knee Joint
A total of seven ligaments support the knee joint. The patellar ligament, which is also attached to the quadriceps femoris...
01:23Muscles that Move the Leg
Anterior Compartment
The quadriceps femoris, the most visible muscle of the anterior compartment, is integral for leg extension and thigh flexion. It is formed by merging four distinct muscles — the vastus lateralis, vastus medialis, vastus intermedius, and rectus femoris. The quadriceps tendon, a shared tendon of the four quadriceps muscles, is affixed...