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Lateral unicompartmental knee arthroplasty: A review
Scott D Buzin1, Jeffrey A Geller2, Richard S Yoon3
1Department of Orthopaedics, Jersey City Medical Center, Jersey City, NJ 07302, United States.
World Journal of Orthopedics
|May 7, 2021
Summary
Lateral UKA (unicompartmental knee arthroplasty) offers excellent outcomes and survivorship for carefully selected patients with knee osteoarthritis. Despite being rare, this procedure shows comparable results to medial UKA.
Area of Science:
- Orthopedic Surgery
- Biomedical Engineering
Background:
- Isolated lateral compartment osteoarthritis of the knee is rare, affecting about 1% of the population.
- Unicompartmental knee arthroplasty (UKA) offers advantages over total knee arthroplasty, including smaller incisions and tissue preservation.
Purpose of the Study:
- To review the recent literature on lateral UKA (LUKA) outcomes.
- To assess the clinical efficacy and implant survivorship of LUKA in properly selected patients.
Main Methods:
- Review of recent scientific literature focusing on lateral UKA.
- Analysis of patient selection criteria, implant designs, and surgical techniques.
- Evaluation of clinical outcomes, implant survivorship, and reasons for revision.
Main Results:
- LUKA demonstrates excellent long-term clinical outcomes and implant survivorship in selected patients.
- Fixed bearing designs are associated with improved outcomes compared to mobile bearing designs.
- Current common causes for revision include osteoarthritis progression and aseptic loosening.
Conclusions:
- Lateral UKA is a highly effective procedure for appropriately indicated patients.
- Continued advancements in techniques and implant designs will further enhance LUKA's success.
- LUKA's survivorship is comparable to medial UKA, despite historical variability in medial UKA outcomes.
