Postoperative complications of reverse total shoulder arthroplasty: a multicenter study in Japan

Background: Reverse total shoulder arthroplasty (RSA) has been approved since 2014 in Japan, and the number of RSA cases has been accumulating. However, only short-to medium-term outcomes have been reported, with a small number of case series, because of its short history in Japan. This study aimed...

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Main Authors: Kenta Inagaki, MD, Nobuyasu Ochiai, PhD, Eiko Hashimoto, PhD, Fumiya Hattori, MD, Yu Hiraoka, MD, Shohei Ise, MD, Yohei Shimada, PhD, Daisuke Kajiwara, PhD, Koji Akimoto, PhD, Yasuhito Sasaki, PhD, Yu Sasaki, PhD, Norimasa Takahashi, PhD, Koji Fujita, PhD, Seiji Ohtori, PhD
Format: Article
Language:English
Published: Elsevier 2023-07-01
Series:JSES International
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S266663832300107X
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author Kenta Inagaki, MD
Nobuyasu Ochiai, PhD
Eiko Hashimoto, PhD
Fumiya Hattori, MD
Yu Hiraoka, MD
Shohei Ise, MD
Yohei Shimada, PhD
Daisuke Kajiwara, PhD
Koji Akimoto, PhD
Yasuhito Sasaki, PhD
Yu Sasaki, PhD
Norimasa Takahashi, PhD
Koji Fujita, PhD
Seiji Ohtori, PhD
author_facet Kenta Inagaki, MD
Nobuyasu Ochiai, PhD
Eiko Hashimoto, PhD
Fumiya Hattori, MD
Yu Hiraoka, MD
Shohei Ise, MD
Yohei Shimada, PhD
Daisuke Kajiwara, PhD
Koji Akimoto, PhD
Yasuhito Sasaki, PhD
Yu Sasaki, PhD
Norimasa Takahashi, PhD
Koji Fujita, PhD
Seiji Ohtori, PhD
author_sort Kenta Inagaki, MD
collection DOAJ
description Background: Reverse total shoulder arthroplasty (RSA) has been approved since 2014 in Japan, and the number of RSA cases has been accumulating. However, only short-to medium-term outcomes have been reported, with a small number of case series, because of its short history in Japan. This study aimed to evaluate complications after RSA in hospitals affiliated with our institute, with comparison to those in other countries. Methods: A multicenter retrospective study was performed at 6 hospitals. In total, 615 shoulders (mean age: 75.7 ± 6.2 years; mean follow-up: 45.2 ± 19.6 months) with at least 24 months of follow-up were included in this study. The active range of motion was assessed pre-and postoperatively. The 5-year survival rate was evaluated for reoperation for any reason in 137 shoulders with at least 5 years of follow-up using Kaplan–Meier analysis. Postoperative complications were evaluated, including dislocation; prosthesis failure; deep infection; periprosthetic, acromial, scapular spine, and clavicle fractures; neurological disorders; and reoperation. Furthermore, imaging assessments, including scapular notching, prosthesis aseptic loosening, and heterotopic ossification were evaluated on postoperative radiography at the final follow-up. Results: All range of motion parameters were significantly improved postoperatively (P < .001). The 5-year survival rate was 93.4% (95% confidence interval: 87.8%-96.5%) for reoperation. Complications occurred in 256 shoulders (42.0%), with reoperation in 45 (7.3%), acromial fracture in 24 (3.9%), neurological disorders in 17 (2.8%), deep infection in 16 (2.6%), periprosthetic fracture in 11 (1.8%), dislocation in 9 (1.5%), prosthesis failure in 9 (1.5%), clavicle fracture in 4 (0.7%), and scapular spine fracture in 2 (0.3%). Regarding imaging assessments, scapular notching was observed in 145 shoulders (23.6%), heterotopic ossification in 80 (13.0%), and prosthesis loosening in 13 (2.1%). Conclusion: This is the first large case series to investigate the complications after RSA in Japan, and the overall frequency of complications after RSA was similar to that in other countries.
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spelling doaj.art-472dfbb9caee46c5b0647d069b3cc73d2023-06-25T04:44:00ZengElsevierJSES International2666-63832023-07-0174642647Postoperative complications of reverse total shoulder arthroplasty: a multicenter study in JapanKenta Inagaki, MD0Nobuyasu Ochiai, PhD1Eiko Hashimoto, PhD2Fumiya Hattori, MD3Yu Hiraoka, MD4Shohei Ise, MD5Yohei Shimada, PhD6Daisuke Kajiwara, PhD7Koji Akimoto, PhD8Yasuhito Sasaki, PhD9Yu Sasaki, PhD10Norimasa Takahashi, PhD11Koji Fujita, PhD12Seiji Ohtori, PhD13Department of Orthopaedic Surgery, Chiba University Hospital, Chuou-ku, Chiba-city, Chiba, Japan; Corresponding author: Kenta Inagaki, MD, Department of Orthopaedic Surgery, Chiba University Hospital, 1-8-1 Inohana, Chuou-ku, Chiba-city, Chiba 260-8677, Japan.Department of Orthopaedic Surgery, Chiba University Hospital, Chuou-ku, Chiba-city, Chiba, JapanDepartment of Orthopaedic Surgery, Chiba University Hospital, Chuou-ku, Chiba-city, Chiba, JapanDepartment of Orthopaedic Surgery, Chiba University Hospital, Chuou-ku, Chiba-city, Chiba, JapanDepartment of Orthopaedic Surgery, Chiba University Hospital, Chuou-ku, Chiba-city, Chiba, JapanDepartment of Orthopaedic Surgery, Chiba University Hospital, Chuou-ku, Chiba-city, Chiba, JapanDepartment of Orthopaedic Surgery, Chiba University Hospital, Chuou-ku, Chiba-city, Chiba, JapanDepartment of Orthopaedic Surgery, Seirei Sakura Citizen Hospital, Sakura-city, Chiba, JapanDepartment of Orthopaedic Surgery, Chiba Rosai Hospital, Ichihara-city, Chiba, JapanDepartment of Orthopaedic Surgery, Sanmu Medical Center, Sanmu-city, Chiba, JapanFunabashi Orthopedic Hospital, Funabashi-city, Chiba, JapanFunabashi Orthopedic Hospital, Funabashi-city, Chiba, JapanDepartment of Orthopaedic Surgery, Chiba Medical Center, Chuou-ku, Chiba-city, Chiba, JapanDepartment of Orthopaedic Surgery, Chiba University Hospital, Chuou-ku, Chiba-city, Chiba, JapanBackground: Reverse total shoulder arthroplasty (RSA) has been approved since 2014 in Japan, and the number of RSA cases has been accumulating. However, only short-to medium-term outcomes have been reported, with a small number of case series, because of its short history in Japan. This study aimed to evaluate complications after RSA in hospitals affiliated with our institute, with comparison to those in other countries. Methods: A multicenter retrospective study was performed at 6 hospitals. In total, 615 shoulders (mean age: 75.7 ± 6.2 years; mean follow-up: 45.2 ± 19.6 months) with at least 24 months of follow-up were included in this study. The active range of motion was assessed pre-and postoperatively. The 5-year survival rate was evaluated for reoperation for any reason in 137 shoulders with at least 5 years of follow-up using Kaplan–Meier analysis. Postoperative complications were evaluated, including dislocation; prosthesis failure; deep infection; periprosthetic, acromial, scapular spine, and clavicle fractures; neurological disorders; and reoperation. Furthermore, imaging assessments, including scapular notching, prosthesis aseptic loosening, and heterotopic ossification were evaluated on postoperative radiography at the final follow-up. Results: All range of motion parameters were significantly improved postoperatively (P < .001). The 5-year survival rate was 93.4% (95% confidence interval: 87.8%-96.5%) for reoperation. Complications occurred in 256 shoulders (42.0%), with reoperation in 45 (7.3%), acromial fracture in 24 (3.9%), neurological disorders in 17 (2.8%), deep infection in 16 (2.6%), periprosthetic fracture in 11 (1.8%), dislocation in 9 (1.5%), prosthesis failure in 9 (1.5%), clavicle fracture in 4 (0.7%), and scapular spine fracture in 2 (0.3%). Regarding imaging assessments, scapular notching was observed in 145 shoulders (23.6%), heterotopic ossification in 80 (13.0%), and prosthesis loosening in 13 (2.1%). Conclusion: This is the first large case series to investigate the complications after RSA in Japan, and the overall frequency of complications after RSA was similar to that in other countries.http://www.sciencedirect.com/science/article/pii/S266663832300107XReverse total shoulder arthroplastyComplicationScapular otchingSurvival rateAcromial fractureNeurological disorder
spellingShingle Kenta Inagaki, MD
Nobuyasu Ochiai, PhD
Eiko Hashimoto, PhD
Fumiya Hattori, MD
Yu Hiraoka, MD
Shohei Ise, MD
Yohei Shimada, PhD
Daisuke Kajiwara, PhD
Koji Akimoto, PhD
Yasuhito Sasaki, PhD
Yu Sasaki, PhD
Norimasa Takahashi, PhD
Koji Fujita, PhD
Seiji Ohtori, PhD
Postoperative complications of reverse total shoulder arthroplasty: a multicenter study in Japan
JSES International
Reverse total shoulder arthroplasty
Complication
Scapular otching
Survival rate
Acromial fracture
Neurological disorder
title Postoperative complications of reverse total shoulder arthroplasty: a multicenter study in Japan
title_full Postoperative complications of reverse total shoulder arthroplasty: a multicenter study in Japan
title_fullStr Postoperative complications of reverse total shoulder arthroplasty: a multicenter study in Japan
title_full_unstemmed Postoperative complications of reverse total shoulder arthroplasty: a multicenter study in Japan
title_short Postoperative complications of reverse total shoulder arthroplasty: a multicenter study in Japan
title_sort postoperative complications of reverse total shoulder arthroplasty a multicenter study in japan
topic Reverse total shoulder arthroplasty
Complication
Scapular otching
Survival rate
Acromial fracture
Neurological disorder
url http://www.sciencedirect.com/science/article/pii/S266663832300107X
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