PMID- 37972421 OWN - NLM STAT- MEDLINE DCOM- 20240220 LR - 20240220 IS - 1873-5800 (Electronic) IS - 0968-0160 (Linking) VI - 46 DP - 2024 Jan TI - Establishing patient-centered metrics for the knee injury and osteoarthritis outcome score following medial unicompartmental knee arthropalsty. PG - 1-7 LID - S0968-0160(23)00228-4 [pii] LID - 10.1016/j.knee.2023.10.013 [doi] AB - BACKGROUND: This study aimed to determine the minimal clinically important difference (MCID) and the patient acceptable symptoms state (PASS) threshold for the knee injury and osteoarthritis outcome score (KOOS) pain subscore, KOOS physical short form (PS), and KOOS joint replacement (JR) following medial unicompartmental knee arthroplasty (mUKA). METHODS: Prospectively collected data from 743 patients undergoing mUKA from a single academic institution from April 2015 through March 2020 were analyzed. Patient-reported outcome measures (PROMs) were collected both pre-operatively and 1-year post-operatively. Distribution-based and anchored-based approaches were used to estimate MCIDs and PASS, respectively. The optimal cut-off point and the percentage of patients who achieved PASS were also calculated. RESULTS: MCID for KOOS-pain, KOOS-PS, and KOOS-JR following mUKA were calculated to be 7.6, 7.3, and 6.2, respectively. The PASS threshold for KOOS pain, PS, and JR were 77.8, 70.3, and 70.7, with 68%, 66%, and 64% of patients achieving satisfactory outcomes, respectively. Cut-off values for delta KOOS pain, PS, and JR were found to be 25.7, 14.3, and 20.7 with 73%, 69%, and 68% of patients achieving satisfactory outcomes, respectively. CONCLUSION: The current study identified useful values for the MCID and PASS thresholds at 1 year following medial UKA of KOOS pain, KOOS PS, and KOOS JR scores. These values may be used as targets for surgeons when evaluating PROMS using KOOS to determine whether patients have achieved successful outcomes after their surgical intervention. Potential uses include the integration of these values into predictive models to enhance shared decision-making and guide more informed decisions to optimize patient outcomes. LEVEL OF EVIDENCE: III. CI - Copyright (c) 2023 Elsevier B.V. All rights reserved. FAU - Pasqualini, Ignacio AU - Pasqualini I AD - Department of Orthopaedic Surgery, Cleveland Clinic, Cleveland, OH, USA. Electronic address: pasquai@ccf.org. FAU - Mariorenzi, Michael AU - Mariorenzi M AD - Department of Orthopaedic Surgery, Cleveland Clinic, Cleveland, OH, USA. Electronic address: mariorm@ccf.org. FAU - Klika, Alison K AU - Klika AK AD - Department of Orthopaedic Surgery, Cleveland Clinic, Cleveland, OH, USA. Electronic address: klikaa@ccf.org. FAU - Rullan, Pedro J AU - Rullan PJ AD - Department of Orthopaedic Surgery, Cleveland Clinic, Cleveland, OH, USA. Electronic address: rullanp@ccf.org. FAU - Zhang, Chao AU - Zhang C AD - Department of Orthopaedic Surgery, Cleveland Clinic, Cleveland, OH, USA. Electronic address: zhangc4@ccf.org. FAU - Murray, Trevor G AU - Murray TG AD - Department of Orthopaedic Surgery, Cleveland Clinic, Cleveland, OH, USA. Electronic address: murrayt2@ccf.org. FAU - Molloy, Robert M AU - Molloy RM AD - Department of Orthopaedic Surgery, Cleveland Clinic, Cleveland, OH, USA. Electronic address: molloyr@ccf.org. FAU - Piuzzi, Nicolas S AU - Piuzzi NS AD - Department of Orthopaedic Surgery, Cleveland Clinic, Cleveland, OH, USA. Electronic address: piuzzin@ccf.org. LA - eng PT - Journal Article DEP - 20231114 PL - Netherlands TA - Knee JT - The Knee JID - 9430798 SB - IM MH - Humans MH - Knee Joint/surgery MH - Pain MH - *Knee Injuries MH - Patient-Centered Care MH - *Osteoarthritis MH - Patient Reported Outcome Measures MH - Treatment Outcome MH - *Osteoarthritis, Knee/surgery OTO - NOTNLM OT - Knee arthroplasty OT - Minimal clinically important difference OT - Patient acceptable symptom state OT - Patient reported outcome measures OT - Satisfaction OT - Unicompartmental COIS- Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. EDAT- 2023/11/17 15:31 MHDA- 2024/02/20 11:50 CRDT- 2023/11/16 18:00 PHST- 2023/03/20 00:00 [received] PHST- 2023/10/02 00:00 [revised] PHST- 2023/10/30 00:00 [accepted] PHST- 2024/02/20 11:50 [medline] PHST- 2023/11/17 15:31 [pubmed] PHST- 2023/11/16 18:00 [entrez] AID - S0968-0160(23)00228-4 [pii] AID - 10.1016/j.knee.2023.10.013 [doi] PST - ppublish SO - Knee. 2024 Jan;46:1-7. doi: 10.1016/j.knee.2023.10.013. Epub 2023 Nov 14.