PMID- 38218402 OWN - NLM STAT- Publisher LR - 20240428 IS - 1532-6500 (Electronic) IS - 1058-2746 (Linking) DP - 2024 Jan 12 TI - Clinically significant outcome thresholds and rates of achievement by shoulder arthroplasty type and preoperative diagnosis. LID - S1058-2746(24)00024-7 [pii] LID - 10.1016/j.jse.2023.11.023 [doi] AB - BACKGROUND: Clinically significant outcome (CSO) benchmarks have been previously established for shoulder arthroplasty by assimilating preoperative diagnoses and arthroplasty types. The purpose of this study was to establish unique CSO thresholds and compare the time-to-achievement of these for reverse shoulder arthroplasty (RSA) for osteoarthritis (GHOA), RSA for rotator cuff arthropathy (RCA), and total shoulder arthroplasty (TSA) for GHOA. MATERIALS AND METHODS: Consecutive patients who underwent elective RSA for GHOA, TSA for GHOA, or RSA for RCA between February 2015 and May 2020, with 2-year minimum follow-up, were retrospectively identified from a prospectively maintained single surgeon registry. The American Shoulder and Elbow Surgeons (ASES) score was administered preoperatively and postoperatively at 2-week, 6-week, 3-month, 6-month, 1-year, and 2-year timepoints. Satisfaction and subjective overall improvement anchor questionnaires were administered at the time of final follow-up. Distribution-based methods were used to calculate the Minimal Clinically Important Difference (MCID), and anchor-based methods were used to calculate the Substantial Clinical Benefit (SCB) and the Patient Acceptable Symptom State (PASS) for each patient group. Median time to achievement, individual incidence of achievement at each time point, and cumulative incidence of achievement calculated using Kaplan-Meier survival curve analysis with interval censoring were compared between groups for each CSO. Cox-regression analyses were also performed to determine which patient factors were significantly associated with early or delayed achievement of CSOs. RESULTS: There were 471 patients eligible for study analysis: 276 RSA for GHOA, 107 TSA for GHOA, and 88 RSA for RCA. The calculated MCID, SCB, and PASS scores differed for each group. There were no significant differences in median time to achievement of any CSO between groups. Log-rank testing revealed that cumulative achievements significantly differed between groups for MCID (P = .014) but not for SCB (P = .053) or PASS (P = .620). On cox regression analysis, TSA patients had earlier achievement of SCB, whereas TSA and RSA for GHOA patients had earlier achievement of MCID. At 2-years, a significantly higher percentage of RSA for GHOA patients achieved MCID and SCB compared to RSA for RCA (MCID:100%, 95.5%, P = .003, SCB:94.6%, 86.4%, P = .036). CONCLUSION: Calculated CSO thresholds differ according to preoperative diagnosis and shoulder arthroplasty type. Patients undergoing TSA and RSA for GHOA achieve CSOs earlier than RSA for RCA patients, and a significantly higher percentage of RSA for GHOA patients achieve CSOs by 2 years compared to RSA for RCA patients. CI - Copyright (c) 2024. Published by Elsevier Inc. FAU - Puzzitiello, Richard N AU - Puzzitiello RN AD - Department of Orthopedics, Tufts Medical Center, Boston, MA, USA. FAU - Moverman, Michael A AU - Moverman MA AD - Department of Orthopedics, Tufts Medical Center, Boston, MA, USA. FAU - Glass, Evan A AU - Glass EA AD - Department of Orthopaedic Surgery, New England Baptist Hospital, Boston, MA, USA; Boston Sports and Shoulder Center Research Foundation, Waltham, MA, USA. FAU - Swanson, Daniel P AU - Swanson DP AD - Department of Orthopaedic Surgery, New England Baptist Hospital, Boston, MA, USA; Boston Sports and Shoulder Center Research Foundation, Waltham, MA, USA. FAU - Bowler, Adam R AU - Bowler AR AD - Department of Orthopaedic Surgery, New England Baptist Hospital, Boston, MA, USA; Boston Sports and Shoulder Center Research Foundation, Waltham, MA, USA. FAU - Le, Kiet AU - Le K AD - Department of Orthopaedic Surgery, New England Baptist Hospital, Boston, MA, USA; Boston Sports and Shoulder Center Research Foundation, Waltham, MA, USA. FAU - Kirsch, Jacob M AU - Kirsch JM AD - Department of Orthopaedic Surgery, New England Baptist Hospital, Boston, MA, USA; Boston Sports and Shoulder Center Research Foundation, Waltham, MA, USA. FAU - Lohre, Ryan AU - Lohre R AD - Department of Orthopedic Surgery, Massachusetts General Hospital, Boston Shoulder Institute, Boston, MA, USA. FAU - Jawa, Andrew AU - Jawa A AD - Department of Orthopaedic Surgery, New England Baptist Hospital, Boston, MA, USA; Boston Sports and Shoulder Center Research Foundation, Waltham, MA, USA. Electronic address: andrewjawa@gmail.com. LA - eng PT - Journal Article DEP - 20240112 PL - United States TA - J Shoulder Elbow Surg JT - Journal of shoulder and elbow surgery JID - 9206499 SB - IM OTO - NOTNLM OT - MCID OT - PASS OT - Reverse total shoulder arthroplasty OT - SCB OT - anatomic total shoulder arthroplasty OT - glenohumeral osteoarthritis OT - rotator cuff arthropathy OT - shoulder replacement EDAT- 2024/01/14 12:42 MHDA- 2024/01/14 12:42 CRDT- 2024/01/13 19:32 PHST- 2023/07/26 00:00 [received] PHST- 2023/11/14 00:00 [revised] PHST- 2023/11/19 00:00 [accepted] PHST- 2024/01/14 12:42 [pubmed] PHST- 2024/01/14 12:42 [medline] PHST- 2024/01/13 19:32 [entrez] AID - S1058-2746(24)00024-7 [pii] AID - 10.1016/j.jse.2023.11.023 [doi] PST - aheadofprint SO - J Shoulder Elbow Surg. 2024 Jan 12:S1058-2746(24)00024-7. doi: 10.1016/j.jse.2023.11.023.