PMID- 38492629 OWN - NLM STAT- MEDLINE DCOM- 20240516 LR - 20240516 IS - 1532-6500 (Electronic) IS - 1058-2746 (Linking) VI - 33 IP - 6S DP - 2024 Jun TI - Primary and revision reverse total shoulder arthroplasty using a patient-matched glenoid implant for severe glenoid bone deficiency. PG - S93-S103 LID - S1058-2746(24)00184-8 [pii] LID - 10.1016/j.jse.2024.03.005 [doi] AB - BACKGROUND: Severe glenoid bone loss in the setting of both primary and revision reverse total shoulder arthroplasty (rTSA) continues to remain a significant challenge. The purpose of this study was to report on radiographic and clinical outcomes of primary and revision rTSA using a patient-matched, 3-dimensionally printed metal glenoid implant to address severe glenoid bone deficiency. This is a follow-up study to previously reported preliminary results. METHODS: A retrospective review was performed on 62 patients with severe glenoid bone deficiency who underwent either primary or revision rTSA using the Comprehensive Vault Reconstruction System (VRS) (Zimmer Biomet) at a single institution. Preoperative and postoperative values for the Disabilities of the Arm, Shoulder and Hand (DASH), Constant, American Shoulder and Elbow Surgeons Standardized Shoulder Assessment Form (ASES), Simple Shoulder Test (SST), Single Assessment Numeric Evaluation (SANE), and visual analog scale (VAS) pain scores as well as active range of motion (ROM) were collected and compared using the Wilcoxon signed rank test with the level of statistical significance set at P < .05. The percentage of patients achieving minimal clinically important difference (MCID) and substantial clinical benefit (SCB) was also calculated. RESULTS: Fifty-five of 62 shoulders (88.7%) were able to be contacted at a minimum of 2 years postoperatively, with 47 of 62 (75.8%) having complete clinical and radiographic follow-up with a mean age of 67.5 years (range, 48-85 years) and follow-up of 39.2 months (range, 25-56 months). There were 19 primary and 28 revision rTSAs. Significant improvements were seen in mean active forward flexion (63.1 degrees +/- 30.3 degrees to 116.8 degrees +/- 35 degrees ), abduction (48.1 degrees +/- 16.1 to 76.2 degrees +/- 13.4 degrees ) (P < .001), external rotation (16 degrees +/- 23.7 degrees to 32.1 degrees +/- 24.5 degrees ) (P < .005), DASH (59.9 +/- 17.7 to 35.7 +/- 24.3), Constant (23.4 +/- 13.1 to 53.1 +/- 17.4), ASES (27.8 +/- 16.2 to 69.1 +/- 25.2), SST (3.3 +/- 2.5 to 7.6 +/- 3.5), SANE (28.9 +/- 18.3 to 66.7 +/- 21.2), and VAS pain (7.1 +/- 2.4 to 1.8 +/- 2.6) scores (P < .001). MCID and SCB was achieved in a majority of patients postoperatively. The overall complication rate was 29.1%, with only 1 baseplate failure. CONCLUSION: This study demonstrates promising evidence that the VRS implant can be used as a viable option to achieve clinically important improvement in a majority of patients treated for severe glenoid bone deficiency with rTSA in both the primary and revision setting. CI - Copyright (c) 2024 Journal of Shoulder and Elbow Surgery Board of Trustees. Published by Elsevier Inc. All rights reserved. FAU - Michelin, Richard M AU - Michelin RM AD - Cedars Sinai-Kerlan Jobe Institute, Los Angeles, CA, USA; White Memorial Medical Center, Los Angeles, CA, USA; Crovetti Orthopaedics and Sports Medicine, Las Vegas, NV, USA. Electronic address: michelinortho@gmail.com. FAU - Manuputy, Isaac AU - Manuputy I AD - Cedars Sinai-Kerlan Jobe Institute, Los Angeles, CA, USA; White Memorial Medical Center, Los Angeles, CA, USA. FAU - Rangarajan, Rajesh AU - Rangarajan R AD - Cedars Sinai-Kerlan Jobe Institute, Los Angeles, CA, USA; White Memorial Medical Center, Los Angeles, CA, USA. FAU - Lee, Brian K AU - Lee BK AD - Cedars Sinai-Kerlan Jobe Institute, Los Angeles, CA, USA; White Memorial Medical Center, Los Angeles, CA, USA. FAU - Schultzel, Mark AU - Schultzel M AD - United Medical Doctors, San Diego, CA, USA. FAU - Itamura, John M AU - Itamura JM AD - Cedars Sinai-Kerlan Jobe Institute, Los Angeles, CA, USA; White Memorial Medical Center, Los Angeles, CA, USA. LA - eng PT - Journal Article DEP - 20240315 PL - United States TA - J Shoulder Elbow Surg JT - Journal of shoulder and elbow surgery JID - 9206499 SB - IM MH - Humans MH - *Arthroplasty, Replacement, Shoulder/methods MH - Retrospective Studies MH - Male MH - Female MH - Aged MH - *Reoperation/methods MH - Middle Aged MH - *Range of Motion, Articular MH - *Prosthesis Design MH - *Shoulder Joint/surgery/diagnostic imaging/physiopathology MH - *Shoulder Prosthesis MH - Aged, 80 and over MH - Treatment Outcome MH - Follow-Up Studies OTO - NOTNLM OT - Glenoid bone loss OT - custom shoulder implant OT - glenoid deficiency OT - patient-matched glenoid implant OT - reverse total shoulder arthroplasty OT - shoulder arthroplasty OT - shoulder replacement EDAT- 2024/03/17 00:42 MHDA- 2024/05/17 00:43 CRDT- 2024/03/16 20:25 PHST- 2023/11/26 00:00 [received] PHST- 2024/03/10 00:00 [revised] PHST- 2024/03/11 00:00 [accepted] PHST- 2024/05/17 00:43 [medline] PHST- 2024/03/17 00:42 [pubmed] PHST- 2024/03/16 20:25 [entrez] AID - S1058-2746(24)00184-8 [pii] AID - 10.1016/j.jse.2024.03.005 [doi] PST - ppublish SO - J Shoulder Elbow Surg. 2024 Jun;33(6S):S93-S103. doi: 10.1016/j.jse.2024.03.005. Epub 2024 Mar 15.