Mid-term functional,clinical, and radiological outcomes with factors affecting revision of mobile-bearing medial unicompartmental knee arthroplasty |
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Institution: | 1. Department of Orthopaedics and Traumatology, Erciyes University, Faculty of Medicine, Kayseri, Turkey;2. Department of Orthopaedics and Traumatology, Health Sciences University Gaziosmanpasa Taksim Training and Research Hospital, Istanbul, Turkey;3. Department of Orthopaedics and Traumatology, Bursa Cekirge State Hospital, Bursa, Turkey;4. Department of Orthopaedics and Traumatology, Ahi Evran University Faculty of Medicine, Kirsehir, Turkey;5. Department of Orthopaedics and Traumatology, Health Sciences University Kayseri City Hospital, Kayseri, Turkey;1. Department of Orthopedics and Traumtology, Bursa Cekirge State Hospital, Bursa, Turkey;2. Department of Orthopedics and Traumatology, Health Sciences University Gaziosmanpasa Training and Research Hospital, Karayollari Mah. Osmanbey Cad. 621. Sk Gaziosmanpasa, 34255 Istanbul, Turkey;3. Department of Orthopedics and Traumatology, Erciyes University Faculty of Medicine, Kayseri, Turkey;4. Department of Orthopedics and Traumtology, Sivas Sarkisla State Hospital, Sivas, Turkey;5. Faculty of Medicine, Department of Orthopedics and Traumatology, Ahi Evran University, Kirsehir, Turkey;1. Department of Orthopedic Surgery, Haeundae Bumin Hospital, 584, Haeundae-ro, Haeundae-gu, Busan 48094, Republic of Korea;2. Department of Orthopedic Surgery, Inje University Busan Paik Hospital, 75, Bokji-ro, Busanjin-gu, Busan 47392, Republic of Korea |
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Abstract: | BackgroundTo evaluate and compare the clinical and radiological outcomes of patients subjected to medial unicompartmental knee arthroplasty (UKA).MethodsThe study included 146 knees of 115 consecutive medial UKAs patients with a minimum five-year follow-up. Pre- and postoperative functional and clinical outcomes were measured using the Visual Analog Scale (VAS), Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC), Oxford Knee Score (OKS), American Knee Society Score (AKSS-O), knee range of motion (ROM), and Short-Form Health Survey (SF-36). The Kellgren–Lawrence osteoarthritis (OA) grading system was used for the evaluation of the OA status. The joint line convergence angle (JLCA) of the operated and contralateral knee, the tibiofemoral coronal angle (TFCA), and the tibial slope angle were used in the radiological evaluation.ResultsThe mean age of patients was 58.8 ± 7.0 years. The mean follow-up period was 7.41 ± 1.54 years. Good to excellent functional outcomes were obtained according to VAS, WOMAC, OKS, AKSS-O, and SF-36 scores. Insert dislocation was the main reason for revision surgery (nine patients, 90%). Preoperative body mass index (BMI), postoperative BMI, American Society of Anesthesiologists (ASA) Score, postoperative knee flexion contracture, mean increase in postoperative medial joint space (PMJS) height, and OA progression were found to affect the revision status.ConclusionsGood to excellent functional, clinical, and radiological outcomes were obtained with medial UKA at a minimum follow-up of five years. Differences in preoperative and postoperative radiological parameters except an increase in PMJS height had no impact on revision status. |
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