Related Experiment Video
Updated: Jun 26, 2026
09:31
Individualized Stem-positioning in Calcar-guided Short-stem Total Hip Arthroplasty
Published on: February 27, 2018
Techniques for managing anatomic variations in primary total knee arthroplasty.
Mike S McGrath1, Arnold J Suda, Peter M Bonutti
1Center for Joint Preservation and Replacement, Rubin Institute for Advanced Orthopedics, 2401 West Belvedere Avenue, Baltimore, MD 21215, USA. mmcgrath@lifebridgehealth.org
Expert Review of Medical Devices
|December 25, 2008
Summary
Total knee arthroplasty innovations aim to improve outcomes for patients with unique anatomy. This review evaluates evidence for technologies addressing variations like bone deficiencies and ligamentous instability.
Area of Science:
- Orthopedic surgery
- Biomedical engineering
- Clinical outcomes research
Background:
- Primary total knee arthroplasty (TKA) is highly successful.
- Anatomic variations can negatively impact TKA performance and outcomes.
- Existing technologies aim to address these challenges, but their benefit is debated.
Purpose of the Study:
- To assess the scientific evidence for technologies used in TKA for various patient anatomic variations.
- To provide evidence-based recommendations for managing specific anatomic challenges in TKA.
Main Methods:
- Comprehensive literature review of studies on TKA technologies and anatomic variations.
- Analysis of evidence related to extra-articular deformities, bone deficiencies, ligamentous instability, post-patellectomy knees, patella baja, bone size variations, and high-flexion knees.
Main Results:
- Evidence varies regarding the efficacy of different technologies for specific anatomic variations.
- Recommendations are formulated based on the strength of available scientific data for each condition.
Conclusions:
- The utility of advanced technologies in TKA for complex anatomy requires careful consideration of the supporting evidence.
- Tailored approaches based on scientific data are crucial for optimizing TKA outcomes in patients with unique variations.