Effect on patellar kinematics of the different patellar component designs in total knee arthroplasty: intraoperative measurement of dome type versus anatomic type.
biomechanical · Level V
Where this comes from
- Record sourced from PubMed, PMID 31655867.
- Also identified by DOI 10.1007/s00590-019-02586-1.
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Abstract
The aim of this study was to identify, during total knee arthroplasty surgery, the effect on patellar kinematics of different patellar component designs in the same patients. This study enrolled 84 patients with osteoarthritis. Intraoperative X-rays were used to measure internal rotation angle, flexion angle and lateral tilt were at different knee flexion angles with dome-type or anatomic-type patellar components (ATTUNE<sup>®</sup>, DePuy). Significant differences from baseline between the two types of components occurred at 120° of the knee flexion in the internal rotation angle, at 90° and 120° of the knee flexion in the flexion angle, and at 60° of the knee flexion in the lateral tilt. This study revealed that the difference in patellar component design affects patellar kinematics. Therefore, the difference in patellar component design may affect patellar stability.
Medical subject headings
- Arthroplasty, Replacement, Knee
- Knee Prosthesis
- Patella
Anatomy
- knee