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In Vitro Application of a Wireless Sensor in Flexion-Extension Gap Balance of Unicompartmental Knee Arthroplasty
Published on: May 5, 2023
Mid-term results for unicompartmental knee arthroplasty.
1Acibadem Maslak Hospital, Istanbul, Turkey.
Summary
Mid-term results for unicompartmental knee arthroplasty (UKA) show satisfactory clinical and functional outcomes. Further long-term follow-up is necessary to confirm sustained benefits of UKA.
Area of Science:
- Orthopedic surgery
- Biomedical engineering
Background:
- Unicompartmental knee arthroplasty (UKA) is a surgical procedure for isolated knee arthritis.
- Early UKA designs were associated with suboptimal clinical outcomes.
- Advancements in implant design and patient selection aim to improve UKA success rates.
Purpose of the Study:
- To evaluate the mid-term clinical and functional results of unicompartmental knee arthroplasty (UKA).
Main Methods:
- A cohort of 32 patients with isolated medial compartment knee arthritis underwent unilateral UKA.
- Pre- and postoperative outcomes were assessed using the Western Ontario McMaster Universities Osteoarthritis Index (WOMAC) and Knee Society Score (KSS).
Main Results:
- At a minimum 5-year follow-up, patients demonstrated significant improvements in WOMAC and KSS scores (p < 0.001).
- Mean knee flexion was 121°, with mean knee extension of 2° and mean varus angulation of 2°.
- Postoperative mean WOMAC score was 96.12 and mean KSS score was 93.
Conclusions:
- Unicompartmental knee arthroplasty (UKA) demonstrated satisfactory clinical and functional outcomes at a 5-year mid-term follow-up.
- Improved outcomes are linked to newer implant designs and refined patient selection criteria.
- Longer-term studies are required to ascertain the durability of UKA results.