PMID- 30675558 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20220331 IS - 2468-6026 (Electronic) IS - 2468-6026 (Linking) VI - 1 IP - 3 DP - 2017 Oct TI - Minimal clinically important difference of Liverpool Elbow Score in elbow arthroplasty. PG - 144-148 LID - 10.1016/j.jses.2017.07.004 [doi] AB - BACKGROUND: The minimal clinically important difference (MCID) that allows the interpretation of small but meaningful changes after intervention has not been reported for the Liverpool Elbow Score (LES). This study aimed to determine the MCID for the LES in patients undergoing total elbow replacement. METHODS: This observational study is based on preoperative and 1-year postoperative clinical outcome of total elbow replacement (Discovery Elbow System) in 71 patients using the LES. A 4-point Likert-like transition scale was used to evaluate patient satisfaction after total elbow replacement. A combination of distribution-based methods (standard deviation [SD] of change in the LES, standard error of mean, smallest detectable change [SDC]) and anchor-based methods (receiver operating curve, difference of mean of change in LES) was used to determine range of MCID values. RESULTS: The mean change in the LES value was 2.4 (SD, 2.1). The estimated SDC value with upper limit of 90% confidence interval was 1.5. The mean change in LES of "satisfied" and "somewhat satisfied" patient groups was 2.4 (SD, 2.1) and 1.1 (SD, 1.4), respectively, and the difference between both means (MCID based on difference of mean in 2 subgroups) was 1.3. According to receiver operating curve analysis, the value of MCID was 1.6. CONCLUSION: The MCID value for the LES was estimated to range between 0.7 and 1.8. The estimated SDC value was 1.5. We propose that the "true" MCID value of the LES would be between 1.6 and 1.8 to ensure that the value is higher than the measurement error of the LES. FAU - Vishwanathan, Karthik AU - Vishwanathan K AD - Shri Krishna Hospital and Pramukhswami Medical College, Karamsad, India. FAU - Alizadehkhaiyat, Omid AU - Alizadehkhaiyat O AD - School of Health Sciences, Liverpool Hope University, Liverpool, UK. FAU - Kemp, Graham J AU - Kemp GJ AD - Department of Musculoskeletal Biology, Institute of Ageing and Chronic Disease, University of Liverpool, Liverpool, UK. FAU - Frostick, Simon P AU - Frostick SP AD - Musculoskeletal Science Research Group, Institute of Translational Medicine, University of Liverpool, Liverpool, UK. LA - eng PT - Journal Article DEP - 20170830 PL - Netherlands TA - JSES Open Access JT - JSES open access JID - 101738952 PMC - PMC6340916 OTO - NOTNLM OT - Clinical outcome OT - Discovery elbow OT - Elbow OT - Joint replacement, elbow prostheses OT - Minimal clinically important changes OT - Total arthroplasty EDAT- 2017/08/30 00:00 MHDA- 2017/08/30 00:01 PMCR- 2017/08/30 CRDT- 2019/01/25 06:00 PHST- 2019/01/25 06:00 [entrez] PHST- 2017/08/30 00:00 [pubmed] PHST- 2017/08/30 00:01 [medline] PHST- 2017/08/30 00:00 [pmc-release] AID - S2468-6026(17)30047-5 [pii] AID - 10.1016/j.jses.2017.07.004 [doi] PST - epublish SO - JSES Open Access. 2017 Aug 30;1(3):144-148. doi: 10.1016/j.jses.2017.07.004. eCollection 2017 Oct.