PMID- 29201296 OWN - NLM STAT- MEDLINE DCOM- 20180207 LR - 20221207 IS - 2005-4408 (Electronic) IS - 2005-291X (Print) IS - 2005-291X (Linking) VI - 9 IP - 4 DP - 2017 Dec TI - Predictors of Midterm Outcomes after Medial Unicompartmental Knee Arthroplasty in Asians. PG - 432-438 LID - 10.4055/cios.2017.9.4.432 [doi] AB - BACKGROUND: This study was designed to evaluate predictors of good outcomes following medial unicompartmental knee arthroplasty (UKA) in Asian patients. METHODS: Registry data of patients who underwent primary unilateral medial UKA from 2006 to 2011 were collected. Outcomes studied were the Oxford Knee Score (OKS) and the Physical Component Score (PCS) of the Short Form 36 (SF-36) questionnaire. These outcome scores were collected prospectively, pre- and postoperatively up to 5 years. Good outcome was defined as an overall improvement in score greater than or equal to the minimal clinically important difference (MCID). The MCID for the OKS was 5 while the MCID for the PCS was 10. Regression analysis was used to identify predictors of good outcomes following medial UKA. RESULTS: Primary medial UKA was performed in 1,075 patients. Higher (poorer) preoperative OKS (odds ratio [OR], 1.27; p < 0.001), lower (poorer) preoperative PCS (OR, 1.08; p < 0.001), lower (poorer) preoperative Knee Society Knee Score (KSKS; OR, 1.02; p < 0.001) and higher (better) preoperative SF-36 Mental Component Score (MCS; OR, 1.02; p < 0.001) were significant predictors of good outcomes. CONCLUSIONS: Patients with poorer OKS, PCS and KSKS and better SF-36 MCS preoperatively tended to achieve good outcomes by the MCID criterion at 5 years following the index surgery. FAU - Bin Abd Razak, Hamid Rahmatullah AU - Bin Abd Razak HR AD - Department of Orthopaedic Surgery, Singapore General Hospital, Singapore. FAU - Acharyya, Sanchalika AU - Acharyya S AD - Centre for Quantitative Medicine, Duke-NUS Medical School, Singapore. FAU - Tan, Shi-Ming AU - Tan SM AD - Department of Orthopaedic Surgery, Singapore General Hospital, Singapore. FAU - Pang, Hee-Nee AU - Pang HN AD - Department of Orthopaedic Surgery, Singapore General Hospital, Singapore. FAU - Tay, Keng-Jin Darren AU - Tay KD AD - Department of Orthopaedic Surgery, Singapore General Hospital, Singapore. FAU - Chia, Shi-Lu AU - Chia SL AD - Department of Orthopaedic Surgery, Singapore General Hospital, Singapore. FAU - Lo, Ngai-Nung AU - Lo NN AD - Department of Orthopaedic Surgery, Singapore General Hospital, Singapore. FAU - Yeo, Seng-Jin AU - Yeo SJ AD - Department of Orthopaedic Surgery, Singapore General Hospital, Singapore. LA - eng PT - Journal Article DEP - 20171110 PL - Korea (South) TA - Clin Orthop Surg JT - Clinics in orthopedic surgery JID - 101505087 SB - IM MH - Aged MH - *Arthroplasty, Replacement, Knee MH - *Asian People MH - Female MH - Humans MH - Male MH - Middle Aged MH - Minimal Clinically Important Difference MH - Osteoarthritis, Knee/*surgery MH - Postoperative Period MH - Preoperative Period MH - Registries MH - *Surveys and Questionnaires MH - Time Factors MH - Treatment Outcome PMC - PMC5705302 OTO - NOTNLM OT - Arthroplasty OT - Asia OT - Knee OT - Osteoarthritis OT - Registries COIS- CONFLICT OF INTEREST: No potential conflict of interest relevant to this article was reported. EDAT- 2017/12/05 06:00 MHDA- 2018/02/08 06:00 PMCR- 2017/12/01 CRDT- 2017/12/05 06:00 PHST- 2017/08/03 00:00 [received] PHST- 2017/09/20 00:00 [accepted] PHST- 2017/12/05 06:00 [entrez] PHST- 2017/12/05 06:00 [pubmed] PHST- 2018/02/08 06:00 [medline] PHST- 2017/12/01 00:00 [pmc-release] AID - 10.4055/cios.2017.9.4.432 [doi] PST - ppublish SO - Clin Orthop Surg. 2017 Dec;9(4):432-438. doi: 10.4055/cios.2017.9.4.432. Epub 2017 Nov 10.