Recurrent posterior shoulder instability—Long‐term results after arthroscopic posterior bone block with capsular reconstruction

Abstract Purpose This study reports the long‐term post‐operative clinical outcomes after arthroscopic posterior bone block augmentation with posterior capsular repair. Methods Eighteen shoulders (13 patients) with unidirectional posterior shoulder instability were treated with an arthroscopic poster...

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Main Authors: Roman F. Karkosch, Juergen Slapar, Tomas Smith, Mathias Wellmann, Marc‐Frederic Pastor, Hauke Horstmann
Format: Article
Language:English
Published: Wiley 2025-01-01
Series:Journal of Experimental Orthopaedics
Subjects:
Online Access:https://doi.org/10.1002/jeo2.70166
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author Roman F. Karkosch
Juergen Slapar
Tomas Smith
Mathias Wellmann
Marc‐Frederic Pastor
Hauke Horstmann
author_facet Roman F. Karkosch
Juergen Slapar
Tomas Smith
Mathias Wellmann
Marc‐Frederic Pastor
Hauke Horstmann
author_sort Roman F. Karkosch
collection DOAJ
description Abstract Purpose This study reports the long‐term post‐operative clinical outcomes after arthroscopic posterior bone block augmentation with posterior capsular repair. Methods Eighteen shoulders (13 patients) with unidirectional posterior shoulder instability were treated with an arthroscopic posterior bone block augmentation and posterior capsular repair in 2011 and 2013 in a single specialized orthopaedic clinic. These patients were invited to participate in a clinical and radiological follow‐up examination to receive long‐term results regarding clinical outcomes, instability, and development of osteoarthritis (OA). Results From the initial study group, 13 patients (18 shoulders) could be obtained for a follow‐up examination. The mean follow‐up period was 111 months. At the final follow‐up, two patients (two shoulders) reported recurrent subluxations with a positive apprehension sign. No redislocation was reported. Screw fixation was still in place in seven patients (38.9%). Overall, good clinical outcomes were achieved among Constant–Murley score (77.6 ± 16; p = 0.55), Rowe score (67.5 ± 22.1; p = 0.34), Walch–Duplay score (58.3 ± 28.2) and Western Ontario Shoulder Index (40.4 ± 23.3%; p = 0.96), showing insignificant changes compared with the 2‐year results. Three shoulders developed severe OA (Samilson and Prieto III). No patient required arthroplasty. Conclusion Arthroscopic posterior bone block augmentation with posterior capsular repair represents a salvage procedure that can achieve long‐term shoulder stability with overall moderate clinical results. Patients have to be informed about the probable need for implant removal and the high risk of OA development, especially in the presence of pre‐existing cartilage damage, beforehand. Level of Evidence Level IV.
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spelling doaj-art-9a1aa68d0b194e6da2309cbfce3715412025-08-20T01:55:38ZengWileyJournal of Experimental Orthopaedics2197-11532025-01-01121n/an/a10.1002/jeo2.70166Recurrent posterior shoulder instability—Long‐term results after arthroscopic posterior bone block with capsular reconstructionRoman F. Karkosch0Juergen Slapar1Tomas Smith2Mathias Wellmann3Marc‐Frederic Pastor4Hauke Horstmann5Orthopedic Surgery Department Hanover Medical School (MHH) Hannover GermanyOrthopedic Surgery Department Hanover Medical School (MHH) Hannover GermanyOrthopedic Surgery Department Hanover Medical School (MHH) Hannover GermanyOrthhoprofis Hannover GermanyOrthopedic Surgery Department Hanover Medical School (MHH) Hannover GermanyOrthopedic Surgery Department Hanover Medical School (MHH) Hannover GermanyAbstract Purpose This study reports the long‐term post‐operative clinical outcomes after arthroscopic posterior bone block augmentation with posterior capsular repair. Methods Eighteen shoulders (13 patients) with unidirectional posterior shoulder instability were treated with an arthroscopic posterior bone block augmentation and posterior capsular repair in 2011 and 2013 in a single specialized orthopaedic clinic. These patients were invited to participate in a clinical and radiological follow‐up examination to receive long‐term results regarding clinical outcomes, instability, and development of osteoarthritis (OA). Results From the initial study group, 13 patients (18 shoulders) could be obtained for a follow‐up examination. The mean follow‐up period was 111 months. At the final follow‐up, two patients (two shoulders) reported recurrent subluxations with a positive apprehension sign. No redislocation was reported. Screw fixation was still in place in seven patients (38.9%). Overall, good clinical outcomes were achieved among Constant–Murley score (77.6 ± 16; p = 0.55), Rowe score (67.5 ± 22.1; p = 0.34), Walch–Duplay score (58.3 ± 28.2) and Western Ontario Shoulder Index (40.4 ± 23.3%; p = 0.96), showing insignificant changes compared with the 2‐year results. Three shoulders developed severe OA (Samilson and Prieto III). No patient required arthroplasty. Conclusion Arthroscopic posterior bone block augmentation with posterior capsular repair represents a salvage procedure that can achieve long‐term shoulder stability with overall moderate clinical results. Patients have to be informed about the probable need for implant removal and the high risk of OA development, especially in the presence of pre‐existing cartilage damage, beforehand. Level of Evidence Level IV.https://doi.org/10.1002/jeo2.70166arthroscopic posterior bone blockcapsular repairposterior glenoid bone lossposterior shoulder instability
spellingShingle Roman F. Karkosch
Juergen Slapar
Tomas Smith
Mathias Wellmann
Marc‐Frederic Pastor
Hauke Horstmann
Recurrent posterior shoulder instability—Long‐term results after arthroscopic posterior bone block with capsular reconstruction
Journal of Experimental Orthopaedics
arthroscopic posterior bone block
capsular repair
posterior glenoid bone loss
posterior shoulder instability
title Recurrent posterior shoulder instability—Long‐term results after arthroscopic posterior bone block with capsular reconstruction
title_full Recurrent posterior shoulder instability—Long‐term results after arthroscopic posterior bone block with capsular reconstruction
title_fullStr Recurrent posterior shoulder instability—Long‐term results after arthroscopic posterior bone block with capsular reconstruction
title_full_unstemmed Recurrent posterior shoulder instability—Long‐term results after arthroscopic posterior bone block with capsular reconstruction
title_short Recurrent posterior shoulder instability—Long‐term results after arthroscopic posterior bone block with capsular reconstruction
title_sort recurrent posterior shoulder instability long term results after arthroscopic posterior bone block with capsular reconstruction
topic arthroscopic posterior bone block
capsular repair
posterior glenoid bone loss
posterior shoulder instability
url https://doi.org/10.1002/jeo2.70166
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