5-Year Survivorship and Outcomes of Robotic-Arm-Assisted Medial Unicompartmental Knee Arthroplasty.

Autor: Gaudiani MA; Department of Orthopaedic Surgery, Henry Ford Hospital, 2799 W Grand Blvd. K12 Detroit MI 48202, USA., Samuel LT; Department of Orthopaedic Surgery, Cleveland Clinic Foundation, 9500 Euclid Avenue, Mail Code A40, Cleveland, Ohio 44195, USA., Diana JN; Coon Joint Replacement Institute, 6 Woodland Road Suite 202, St. Helena, California 94574, USA., DeBattista JL; Coon Joint Replacement Institute, 6 Woodland Road Suite 202, St. Helena, California 94574, USA., Coon TM; Coon Joint Replacement Institute, 6 Woodland Road Suite 202, St. Helena, California 94574, USA., Moore RE; Coon Joint Replacement Institute, 6 Woodland Road Suite 202, St. Helena, California 94574, USA., Kamath AF; Department of Orthopaedic Surgery, Cleveland Clinic Foundation, 9500 Euclid Avenue, Mail Code A40, Cleveland, Ohio 44195, USA.
Jazyk: angličtina
Zdroj: Applied bionics and biomechanics [Appl Bionics Biomech] 2022 May 06; Vol. 2022, pp. 8995358. Date of Electronic Publication: 2022 May 06 (Print Publication: 2022).
DOI: 10.1155/2022/8995358
Abstrakt: Purpose: While unicompartmental knee arthroplasty (UKA) has demonstrated benefits over total knee arthroplasty (TKA) in selected populations, component placement continues to be challenging with conventional surgical instruments, resulting in higher early failure rates. Robotic-arm-assisted UKA (RA-UKA) has shown to be successful in component positioning through preop planning and intraop adjustability. The purpose of this study is to assess the 5-year clinical outcomes of medial RA-UKA.
Methods: This study was a retrospective review of a single-center prospectively maintained cohort of 133 patients (146 knees) indicated for medial UKA from 2009 to 2013. Perioperative data and 2- and 5-year Knee injury Osteoarthritis Outcome Score (KOOS), Western Ontario and McMaster Universities Osteoarthritis Score (WOMAC), and Forgotten Joint Score (FJS) outcome measures were collected. Five-year follow-up was recorded in 119 patients (131 knees).
Results: Mean follow-up was 5.1 ± 0.2 years. Mean age and BMI were 68.0 ± 8.1 years and 29.3 ± 4.7 kg/m 2 , respectively. At 2-year follow-up, mean KOOS, WOMAC, and FJS were 71.5 ± 15.3, 14.3 ± 7.9, and 79.1 ± 25.8, respectively. At 5-year follow-up, mean KOOS, WOMAC, and FJS were 71.6 ± 15.2, 14.2 ± 7.9, and 80.9 ± 25.1, respectively. Mean change in KOOS and WOMAC was 34.6 ± 21.4 and 11.0 ± 13.6, respectively ( p < 0.001 and p < 0.001). For patient satisfaction at last follow-up, 89% of patients were very satisfied/satisfied and 5% were dissatisfied. For patient activity expectations at last follow-up, 85% met activity expectations, 52% were more active than before, 25% have the same level of activity, 23% were less active than before, and 89% were walking without support. All patients returned to driving after surgery at a mean 15.2 ± 9.4 days. Survivorship was 95% (95% CI 0.91-0.98) at 5 years. One knee (1%) had a patellofemoral revision, two knees (1.3%) were revised to different partial knee replacements, and five knees (3.4%) were converted to TKA.
Conclusion: Overall, medial RA-UKA demonstrated improved patient-recorded outcomes, high patient satisfaction, met expectations, and excellent functional recovery. Midterm survivorship was excellent. Longitudinal follow-up is needed to evaluate long-term outcomes of robotic-arm-assisted UKA procedures.
Competing Interests: The authors declare that they have no conflicts of interest.
(Copyright © 2022 Michael A. Gaudiani et al.)
Databáze: MEDLINE
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