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Yu W, Wu D, Yuan C, Jiang X, He Y. Arthroscopic Autologous Iliac Crest Grafting with an Adjustable Loop Suspensory Device Yields Favorable Outcomes for Anterior Shoulder Instability with Glenoid Defects. Arthroscopy 2024:S0749-8063(24)00571-1. [PMID: 39168256 DOI: 10.1016/j.arthro.2024.07.035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/19/2024] [Revised: 07/21/2024] [Accepted: 07/23/2024] [Indexed: 08/23/2024]
Abstract
PURPOSE This study aims to evaluate the clinical and radiological outcomes of the arthroscopic autologous iliac crest grafting (AICG) procedure with an adjustable-loop suspensory fixation device in the treatment of anterior shoulder instability (ASI) with glenoid bone defects. METHODS A retrospective review was conducted on the patients who underwent arthroscopic AICG with an adjustable-loop suspensory fixation device from January 2017 to December 2020. Patients with traumatic ASI, significant glenoid bone defects, and a minimum follow-up of 24 months were included. Patient-reported outcomes (PROs), including the Oxford Shoulder Instability Score (OSIS), the Rowe score, the Walch-Duplay score, the Constant score, and the Visual Analogue Score (VAS), were compared preoperatively and postoperatively. Radiological assessments using computed tomography (CT) were performed before and after the procedure. Additional data on active range of motion, recurrence events, and complications were recorded. RESULTS A total of 42 patients were included in the study, with a mean follow-up time of 35.2 months ranging from 25.1 to 55.9 months. Mean preoperative OSIS, Rowe score, Walch-Duplay score, and Constant score significantly improved from 24.4±7.2, 25.0±9.0, 25.2±9.8, 87.5±7.1 to 42.4±4.9, 92.4±8.1, 87.9±8.3, 93.6±4.5 at the last follow-up, respectively. All patients exceeded the minimal clinically important difference (MCID) for OSIS, Rowe, and Walch-Duplay scores. The graft union rate was 100%, and the glenoid area increased significantly from 82.5% preoperatively to 100.1% at the final follow-up. No patient experienced a recurrence of instability. Two recorded complications included one case of dysesthesia around the donor site and one case of postoperative shoulder stiffness. CONCLUSIONS The outcomes of the arthroscopic AICG procedure, which utilizes an adjustable-loop suspensory fixation device, demonstrated stable bone graft fixation, high rates of graft integration, favorable clinical results, and a low incidence of complications. Moreover, the remodeling of the graft during the follow-up period significantly restored the width and concavity of the inferior glenoid, contributing to the overall recovery. LEVEL OF EVIDENCE Level IV, retrospective case series.
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Affiliation(s)
- Weilin Yu
- Department of Orthopedic Surgery, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200233, China
| | - Di Wu
- Department of Orthopedics, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, 230002, China
| | - Chenrui Yuan
- Department of Orthopedic Surgery, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200233, China
| | - Xiping Jiang
- Department of Orthopedic Surgery, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200233, China
| | - Yaohua He
- Department of Orthopedic Surgery, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200233, China; Department of Orthopedic Surgery, Jinshan District Central Hospital Affiliated to Shanghai University of Medicine & Health Sciences, Jinshan Branch of Shanghai Sixth People's Hospital, Shanghai, 201500, China.
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Bockmann B, Nebelung W, Gröger F, Leuzinger J, Agneskirchner J, Brunner U, Seybold D, Streich J, Bartsch S, Schicktanz K, Maier D, Königshausen M, Patzer T, Venjakob AJ. The arthroscopic treatment of anterior shoulder instability with glenoid bone loss shows similar clinical results after Latarjet procedure and iliac crest autograft transfer. Knee Surg Sports Traumatol Arthrosc 2023; 31:4566-4574. [PMID: 37386197 DOI: 10.1007/s00167-023-07480-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Accepted: 06/02/2023] [Indexed: 07/01/2023]
Abstract
PURPOSE Recurrent anterior shoulder instability caused by critical bone loss of the glenoid is a challenging condition for shoulder surgeons. The purpose of this prospective multicenter trial was to compare the arthroscopic transfer of the coracoid process (Latarjet procedure) with the arthroscopic reconstruction of the glenoid using iliac crest autografts. METHODS A prospective multi-center trial was performed in nine orthopaedic centres in Austria, Germany and Switzerland between July 2015 and August 2021. Patients were prospectively enrolled and received either an arthroscopic Latarjet procedure or an arthroscopic iliac crest graft transfer. Standardized follow-up after 6 months and mimimum 24 months included range of motion, Western Ontario stability index (WOSI), Rowe score and subjective shoulder value (SSV). All complications were recorded. RESULTS 177 patients (group Latarjet procedure: n = 110, group iliac crest graft: n = 67) were included in the study. WOSI (n.s.), SSV (n.s.) and Rowe score (n.s.) showed no difference at final follow-up. 10 complications were seen in group Latarjet procedure and 5 in group iliac crest graft; the frequency of complications did not differ between the two groups (n.s.). CONCLUSION The arthrosopic Latarjet procedure and arthroscopic iliac crest graft transfer lead to comparable results regarding clinical scores, frequency of recurrent dislocations and complication rates. LEVEL OF EVIDENCE Level II.
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Affiliation(s)
- Benjamin Bockmann
- Department of Orthopaedics and Trauma Surgery, St. Josef Hospital, Ruhr University, Gudrunstraße 56, 44791, Bochum, Germany.
- Department of Shoulder and Elbow Surgery, St. Josef Krankenhaus Essen-Kupferdreh, Essen, Germany.
| | | | - Falk Gröger
- Shouldercare, Engeriedspital, Bern, Switzerland
| | - Jan Leuzinger
- Center for Minimally Invasive Surgery, Etzelclinic, Pfäffikon, Switzerland
| | | | - Ulrich Brunner
- Trauma and Orthopaedic Surgery, Krankenhaus Agatharied, Hausham, Germany
| | | | - Jörg Streich
- Department of Shoulder and Elbow Surgery, St. Josef Krankenhaus Essen-Kupferdreh, Essen, Germany
| | - Stefan Bartsch
- Schaumburg Centre of Joint Surgery, Praxis am Wall Rinteln, Rinteln, Germany
| | | | - Dirk Maier
- Department of Orthopaedics and Trauma Surgery, University Hospital Basel, Basel, Switzerland
| | - Matthias Königshausen
- Department of General and Trauma Surgery, BG University Hospital Bergmannsheil, Bochum, Germany
| | - Thilo Patzer
- Centre for Shoulder, Elbow, Knee and Sports Orthopedics, Schön-Klinik, Düsseldorf, Germany
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Fares MY, Boufadel P, Daher M, Koa J, Khanna A, Abboud JA. Anterior Shoulder Instability and Open Procedures: History, Indications, and Clinical Outcomes. Clin Orthop Surg 2023; 15:521-533. [PMID: 37529197 PMCID: PMC10375816 DOI: 10.4055/cios23018] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 03/15/2023] [Accepted: 04/16/2023] [Indexed: 08/03/2023] Open
Abstract
The shoulder, being the most mobile joint in the human body, is often susceptible to dislocations and subluxations more so than other joints. As such, shoulder instability constitutes a common complaint among patients worldwide, especially those who are young, participate in contact sports, and have increased innate flexibility in their joints. Management options in the setting of instability vary between conservative and surgical options that aim to mitigate symptoms and allow return of function. Surgical options can be arthroscopic and open, with a general shift among surgeons towards utilizing arthroscopic surgery in the past several decades. Nevertheless, open procedures still play a role in managing shoulder instability patients, especially those with significant bone loss, recurrent instability, coexisting shoulder pathologies, and high risk of failure with arthroscopic surgery. In these clinical settings, open procedures, like the Latarjet procedure, open Bankart repair, glenoid bone augmentation using iliac crest autograft or distal tibial allograft, and salvage options like glenohumeral arthrodesis and arthroplasty may show good clinical outcomes and low recurrence rates. Each of these open procedures possesses its own set of advantages and disadvantages and entails a specific set of indications based on published literature. It is important to cater treatment options to the individual patient in order to optimize outcomes and reduce the risk of complications. Future research on open shoulder stabilization procedures should focus on the long-term outcomes of recently utilized procedures, investigate different graft options for procedures involving bone augmentation, and conduct additional comparative analyses in order to establish concrete surgical management guidelines.
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Affiliation(s)
- Mohamad Y. Fares
- Division of Shoulder and Elbow Surgery, Rothman Orthopaedic Institute, Philadelphia, PA, USA
| | - Peter Boufadel
- Division of Shoulder and Elbow Surgery, Rothman Orthopaedic Institute, Philadelphia, PA, USA
| | - Mohammad Daher
- Division of Shoulder and Elbow Surgery, Rothman Orthopaedic Institute, Philadelphia, PA, USA
| | - Jonathan Koa
- Division of Shoulder and Elbow Surgery, Rothman Orthopaedic Institute, Philadelphia, PA, USA
| | - Akshay Khanna
- Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA, USA
| | - Joseph A. Abboud
- Division of Shoulder and Elbow Surgery, Rothman Orthopaedic Institute, Philadelphia, PA, USA
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[Chronic posttraumatic shoulder instability]. UNFALLCHIRURGIE (HEIDELBERG, GERMANY) 2023; 126:145-154. [PMID: 36729203 PMCID: PMC9898333 DOI: 10.1007/s00113-022-01283-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Accepted: 12/14/2022] [Indexed: 02/03/2023]
Abstract
Chronic posttraumatic shoulder instability is characterized by trauma-associated, recurrent dislocations. Surgical treatment is indicated in most cases but it remains controversial how risk factors should be weighted to decide between arthroscopic Bankart repair (ABR), Latarjet or alternative procedures. Known risk factors for recurrence are patient age, hyperlaxity, sports profile and bone loss. Surgical techniques are discussed in detail. The ABR leads to high patient satisfaction and return to sports; however, in association with risk factors, recurrent dislocations are seen even several years later. Latarjet or bone block procedures lead to high patient satisfaction, sustainable stability as a revision procedure, but can also be primarily indicated for chronic instability depending on risk factors. Early complications are more frequent but of a minor nature in most cases. All techniques are known for a serious learning curve. If performed well, they do not seem to increase the risk of arthritis, which is most affected by the number of lifetime dislocations and higher energy trauma.
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Wu C, Xu J, Fang Z, Chen J, Ye Z, Wu X, Li Z, Wang L, Kang Y, Zhao S, Xu C, Zhao J. Clinical and Radiological Outcomes in Patients With Anterior Shoulder Instability and Glenoid Bone Loss after Arthroscopic Free Bone Block Combined With Dynamic Anterior Stabilization. Am J Sports Med 2023; 51:187-197. [PMID: 36468855 DOI: 10.1177/03635465221137883] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Abstract
BACKGROUND As an alternative to the Latarjet procedure, the arthroscopic free bone block (FBB) procedure combined with dynamic anterior stabilization (DAS) has been recently proposed to provide both glenoid augmentation and a tendon sling effect for treating anterior shoulder instability (ASI) with glenoid bone loss. PURPOSE To evaluate the clinical and radiological outcomes of FBB-DAS for ASI with glenoid bone loss. STUDY DESIGN Case series; Level of evidence, 4. METHODS Patients who underwent arthroscopic FBB-DAS for ASI with >15% glenoid bone loss between February 2017 and March 2020 were screened and enrolled in this study. Clinical outcome measures were assessed preoperatively and at a minimum 2-year follow-up, including recurrence, complications, shoulder functional scores, range of motion, and return to sports. Postoperative computed tomography and magnetic resonance imaging were also performed. RESULTS Of a total of 65 patients with a mean follow-up of 46.1 ± 13.1 months, no patients experienced a recurrent dislocation or subluxation postoperatively, while 2 had a positive anterior apprehension test (3.1%). Additionally, 2 patients (3.1%) experienced complications of hematoma and shoulder stiffness, respectively. The mean visual analog scale score, American Shoulder and Elbow Surgeons score, Rowe score, and Oxford Shoulder Instability Score all improved significantly from 3.2 ± 2.4, 75.0 ± 18.9, 43.6 ± 27.3, and 33.8 ± 9.0 preoperatively to 1.3 ± 0.8, 95.1 ± 8.0, 95.5 ± 7.8, and 14.8 ± 3.5 at final follow-up, respectively (all P < .001). No difference was detected in range of motion except for 8.1° and 7.5° external rotation limitations in adduction and abduction, respectively. There were 62 patients (95.4%) who returned to sports, and 54 patients (83.1%) returned to the preinjury level. The transferred biceps tendon was intact in all 59 patients who completed radiological examination at the latest follow-up. Good bone healing was achieved in 98.3% of patients, and the glenoid bone defect decreased from 18.1% to 4.9%. Osseous and labral glenoids were significantly enlarged in width and depth on the latest magnetic resonance imaging (all P < .001). CONCLUSION Arthroscopic FBB-DAS provided satisfactory clinical and radiological outcomes for ASI with glenoid bone loss. Despite slight external rotation restrictions, it achieved low recurrence and complication rates, excellent shoulder functional scores, a high return-to-sports rate, and favorable graft healing and remodeling.
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Affiliation(s)
- Chenliang Wu
- Department of Sports Medicine, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Junjie Xu
- Department of Sports Medicine, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Zhaoyi Fang
- Department of Sports Medicine, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jiebo Chen
- Department of Sports Medicine, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Zipeng Ye
- Department of Sports Medicine, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xiulin Wu
- Department of Sports Medicine, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Ziyun Li
- Department of Sports Medicine, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Liren Wang
- Department of Sports Medicine, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yuhao Kang
- Department of Sports Medicine, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Song Zhao
- Department of Sports Medicine, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Caiqi Xu
- Department of Sports Medicine, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jinzhong Zhao
- Department of Sports Medicine, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
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Kuan FC, Hsu KL, Lin FH, Hong CK, Chen Y, Shih CA, Su WR. Morphometric and Biomechanical Comparison of the Scapular Spine and Coracoid Graft in Anterior Shoulder Instability. Am J Sports Med 2022; 50:3625-3634. [PMID: 36190171 DOI: 10.1177/03635465221124277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND The scapular spine has been described as a relatively new bone graft alternative used in glenoid augmentation. The classic Latarjet procedure, which transfers the coracoid as a graft, is regarded as the gold standard. The comparison of these 2 techniques has not been fully reported. PURPOSE To compare the anatomic and biomechanical properties of glenoid augmentation using scapular spine graft or coracoid graft. STUDY DESIGN Controlled laboratory study. METHODS The study used 20 fresh-frozen human cadaveric shoulders. A 25% anterior glenoid defect was created, and the specimens were divided randomly to receive glenoid augmentation by scapular spine or coracoid grafts. For both procedures, the grafts were secured to the glenoid defect with 2 screws. Morphometric data, including the glenoid articular area, amount of restoration, and graft dimensions, were obtained. A biomechanical test was conducted in a direct-loading scenario. The construct stiffness, cyclic displacement, and ultimate failure of each specimen were collected. RESULTS No significant difference was found in glenoid articular restoration between the scapular spine group and the coracoid group (31% vs 33%, respectively; P = .311). Morphometric analysis indicated that coracoid grafts exhibited significantly greater thickness and height than scapular spine grafts. In biomechanical results, the scapular spine group exhibited significantly greater construct stiffness than the coracoid group (206.3 ± 58.8 vs 148.3 ± 76.0 N/mm, respectively; P = .023). The average failure load in the scapular spine group was not significantly higher than that in the coracoid group. No significant differences in cyclic displacement were found between the 2 techniques. CONCLUSION In a simulated 25% anterior glenoid bony defect, a scapular spine graft was comparable with the classic Latarjet procedure in restoring the glenoid articular dimension and exhibited superior construct stiffness in a cadaveric model. CLINICAL RELEVANCE The scapular spine may serve as an alternative graft choice in glenoid augmentation surgery considering the amount of articular restoration and initial fixation stability.
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Affiliation(s)
- Fa-Chuan Kuan
- Department of Orthopaedic Surgery, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan.,Skeleton Materials and Bio-compatibility Core Lab, Research Center of Clinical Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan.,Musculoskeletal Research Center, Innovation Headquarters, National Cheng Kung University, Tainan, Taiwan
| | - Kai-Lan Hsu
- Department of Orthopaedic Surgery, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan.,Skeleton Materials and Bio-compatibility Core Lab, Research Center of Clinical Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan.,Musculoskeletal Research Center, Innovation Headquarters, National Cheng Kung University, Tainan, Taiwan
| | - Fang-Hsien Lin
- Department of Physical Medicine and Rehabilitation, Tainan Municipal An-Nan Hospital, Tainan, Taiwan
| | - Chih-Kai Hong
- Department of Orthopaedic Surgery, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan.,Skeleton Materials and Bio-compatibility Core Lab, Research Center of Clinical Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan.,Musculoskeletal Research Center, Innovation Headquarters, National Cheng Kung University, Tainan, Taiwan
| | - Yueh Chen
- Department of Orthopaedic Surgery, Sin Lau Christian Hospital, Tainan, Taiwan
| | - Chien-An Shih
- Department of Orthopaedic Surgery, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan.,Skeleton Materials and Bio-compatibility Core Lab, Research Center of Clinical Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan.,Musculoskeletal Research Center, Innovation Headquarters, National Cheng Kung University, Tainan, Taiwan
| | - Wei-Ren Su
- Department of Orthopaedic Surgery, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan.,Skeleton Materials and Bio-compatibility Core Lab, Research Center of Clinical Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan.,Musculoskeletal Research Center, Innovation Headquarters, National Cheng Kung University, Tainan, Taiwan
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Navigation-Guided Trans-glenoid Flexible Fixation Technique for Arthroscopic Autologous Iliac Crest Grafting Treatment of Recurrent Shoulder Dislocation. Arthrosc Tech 2022; 11:e2003-e2011. [PMID: 36457404 PMCID: PMC9705807 DOI: 10.1016/j.eats.2022.07.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Accepted: 07/28/2022] [Indexed: 11/07/2022] Open
Abstract
Recurrent anterior shoulder dislocations accompanied by severe glenoid bone defects are typically treated with arthroscopy. Until now, autologous iliac grafting has been reported with excellent results, and different techniques of bone fixation have been introduced by numerous scholars. In this article, we introduce a specially designed guide that can achieve accurate positioning of the bone graft and a nonrigid graft fixation technique with a single EndoButton (Smith & Nephew). Using this technique, we greatly simplify the arthroscopic procedure and avoid the use of screws.
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Falbo R, Moore A, Singleton A, Steffenson A, Levine J, Miller R. Glenoid bone augmentation: a contemporary and comprehensive systematic review of open procedures. Orthop Rev (Pavia) 2022; 14:37834. [PMID: 36045697 DOI: 10.52965/001c.37834] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Introduction There is a trend towards arthroscopically treating shoulder instability with glenoid deficiency. Despite this, there remains the option for treatment through an open technique. Multiple bone augmentation options are available for recurrent anterior shoulder instability. Objective To provide a systematic review of recent studies for recurrent anterior shoulder instability necessitating glenoid bone augmentation specifically through open procedures using coracoid bone or free bone blocks [iliac crest bone autograft/allograft or distal tibia allograft (DTA)]. Methods PubMed, Cochrane, EMBASE, and Google Scholar were searched for studies reporting open glenoid bone augmentation procedures with iliac crest, tibia, or coracoid bones within 10 years. Extracted data included study/patient characteristics, techniques, prior surgeries, prior dislocations, radiographic findings, range of motion (ROM), recurrent instability, patient-reported outcomes, and complications. Results 92 met inclusion criteria (5693 total patients). Six were studies of iliac crest bone, four of DTA, and 84 using the coracoid bone. 29 studies measured postoperative arthritis showing no development or mild arthritis. 26 studies reported postoperative graft position. 62 studies reported ROM noting decline in internal/external rotation. 87 studies measured postoperative instability with low rates. Rowe Scores with noted improvement across 31/59 (52.5%) studies were seen. Common post operative complications included infection, hematoma, graft fracture, nerve injury, pain, and screw-related irritation. Conclusion Despite a trend towards arthroscopic management of recurrent anterior shoulder instability with glenoid deficiency, open procedures continue to provide satisfactory outcomes. Additionally, studies have demonstrated safe and efficacious use of free bone block graft options in the primary and revision setting.
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Affiliation(s)
- Ryan Falbo
- Orthopedic Surgery, Mercy Health St. Vincent Medical Center
| | - Austin Moore
- Orthopedic Surgery, Mercy Health St. Vincent Medical Center
| | - Amy Singleton
- Orthopedic Surgery, Mercy Health St. Vincent Medical Center
| | | | - Jason Levine
- Orthopedic Surgery, Mercy Health St. Vincent Medical Center
| | - Richard Miller
- Orthopedic Surgery, Mercy Health St. Vincent Medical Center
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Zhou P, Shao H, Zhao M, Yang X, Hao Z, Chen Z, Li S, Zhang P. Suspension fixation of iliac bone grafts under arthroscopy is an effective method for the treatment of unstable bony Bankart disease of the shoulder joint in patients with joint relaxation. Knee Surg Sports Traumatol Arthrosc 2022; 31:1925-1931. [PMID: 36040509 PMCID: PMC10089981 DOI: 10.1007/s00167-022-07127-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Accepted: 08/17/2022] [Indexed: 11/30/2022]
Abstract
PURPOSE To evaluate the results of arthroscopic autologous iliac bone graft suspension fixation combined with the Remplissage procedure in the treatment of recurrent shoulder dislocation with bony Bankart lesions and joint hyperlaxity. METHODS From 2018 to 2020, 22 patients with joint laxity underwent arthroscopic autologous iliac bone graft suspension fixation and Bankart repair combined with the Remplissage procedure due to recurrent shoulder dislocation. Clinical assessment included range of motion (forward flexion, abduction, 90° external rotation, conventional external rotation, adduction, and internal rotation), visual analog scale (VAS) score, Rowe score, University of California Los Angeles (UCLA) score, and Western Ontario Shoulder Instability Index (WOSI) score. Post-operatively, the healing of the bone graft was evaluated with computed tomography (CT) scanning. RESULTS All 22 patients were followed up for a mean of 19.3 ± 4.1 months. CT imaging showed that the healing time of the bone graft was 6-8 weeks. The patient satisfaction rate was 100%, there were no cases of redislocation, all patients returned to their preinjury training state, and the fear test was negative. At the final follow-up, the UCLA, VAS, Rowe, and WOSI scores were 29.8 ± 2.1, 2.2 ± 0.8, 89.4 ± 4.2, and 482.3 ± 46.2, respectively (p < 0.001). CONCLUSION Arthroscopic autologous iliac bone graft suspension fixation and Bankart repair combined with the Remplissage procedure are effective in preventing recurrent instability with joint hyperlaxity. Furthermore, no patient had redislocation. LEVEL OF EVIDENCE IV.
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Affiliation(s)
- Peng Zhou
- Department of Sports Medicine, The 940th Hospital of Joint Logistic Support Force of Chinese People's Liberation Army, Lanzhou, 730050, Gansu, China
| | - HongBin Shao
- Department of Sports Medicine, The 940th Hospital of Joint Logistic Support Force of Chinese People's Liberation Army, Lanzhou, 730050, Gansu, China
| | - MaoSheng Zhao
- Department of Sports Medicine, The 940th Hospital of Joint Logistic Support Force of Chinese People's Liberation Army, Lanzhou, 730050, Gansu, China
| | - XiaoJie Yang
- Department of Sports Medicine, The 940th Hospital of Joint Logistic Support Force of Chinese People's Liberation Army, Lanzhou, 730050, Gansu, China
| | - Zuobin Hao
- Department of Hand Surgery, The Third People's Hospital of Jinan, Jinan, 250000, Shandong, China
| | - Zhao Chen
- The Third Department of Surgery, Qinghai Province Crops Hospital of Chinese People's Armed Police Forces, Xi'ning, 810000, China
| | - Shensong Li
- Department of Sports Medicine, The 940th Hospital of Joint Logistic Support Force of Chinese People's Liberation Army, Lanzhou, 730050, Gansu, China.
| | - Peng Zhang
- Department of Sports Medicine, Huashan Hospital, Fudan University, Shanghai, 200040, China.
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Implant-free iliac crest bone graft procedure shows anatomic remodelling without redislocation in recurrent anterior shoulder instability after short-term follow-up. Arch Orthop Trauma Surg 2022; 142:1047-1054. [PMID: 33486557 DOI: 10.1007/s00402-021-03777-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2020] [Accepted: 01/06/2021] [Indexed: 10/22/2022]
Abstract
INTRODUCTION With the help of a J-shaped bicortical iliac crest bone graft, the morphology of the glenoid can be augmented without having to use screws to achieve glenohumeral stability. The aim of this retrospective clinical study was to evaluate the clinical stability and function of the shoulder joint as well as the radiological remodelling process and arthropathic outcomes following the J-bone graft technique. MATERIALS AND METHODS 34 patients with recurrent shoulder dislocations and bony glenoid defects were treated with the J-bone graft technique between 2010 and 2018 at our level-I trauma centre. 15 patients (18 shoulders) could be recruited for the study. Pain levels, ASES, UCLA, SST, DASH, Rowe and WOSI Scores were collected using questionnaires. In 13 patients (16 shoulders) the Constant Score, ROM, CT with 3D reconstruction of the glenoid to assess the graft remodelling and X-rays were performed additionally. RESULTS None of the patients suffered subluxations or recurrent dislocations during the follow-up period. The overall complication rate was 11%. The evaluation using objective and subjective shoulder function scores yielded good-to-excellent results. Radiological assessment at follow-up showed a low rate of moderate-to-severe arthritis (12%) and a high rate of shoulders without any signs of arthritic degeneration (53%). The CT scans all revealed an almost complete restoration of the glenoid with none of the grafts being resorbed. A rise in the average glenoid circumference and glenoid area could be demonstrated between preoperative measurements (81.6 and 82.4%, respectively) and follow-up measurements (104 and 102.5%, respectively). CONCLUSION The results of this study show a successful stabilisation of the shoulder joint and a low complication rate following the J-bone graft technique. Remodelling of the bone graft could be demonstrated, which in turn led to an almost perfect glenoid surface area of 100%.
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Dislocation Arthropathy of the Shoulder. J Clin Med 2022; 11:jcm11072019. [PMID: 35407627 PMCID: PMC8999818 DOI: 10.3390/jcm11072019] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 03/28/2022] [Accepted: 04/02/2022] [Indexed: 12/04/2022] Open
Abstract
Glenohumeral osteoarthrosis (OA) may develop after primary, recurrent shoulder dislocation or instability surgery. The incidence is reported from 12 to 62%, depending on different risk factors. The risk of severe OA of the shoulder following dislocation is 10 to 20 times greater than the average population. Risk factors include the patient’s age at the first episode of instability or instability surgery, bony lesions, and rotator cuff tears. For mild stages of OA, arthroscopic removal of intraarticular material, arthroscopic debridement, or arthroscopic arthrolysis of an internal rotation contracture might be sufficient. For severe stages, mobilization of the internal rotation contracture and arthroplasty is indicated. With an intact rotator cuff and without a bone graft, results for anatomical shoulder arthroplasty are comparable to those following primary OA. With a bone graft at the glenoidal side, the risk for implant loosening is ten times greater. For the functional outcome, the quality of the rotator cuff is more predictive than the type of the previous surgery or the preoperative external rotation contracture. Reverse shoulder arthroplasty could be justified due to the higher rate of complications and revisions of non-constrained anatomic shoulder arthroplasties reported. Satisfactory clinical and radiological results have been published with mid to long term data now available.
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Zhang JA, Lam PH, Beretov J, Murrell GAC. A review of bone grafting techniques for glenoid reconstruction. Shoulder Elbow 2022; 14:123-134. [PMID: 35265177 PMCID: PMC8899324 DOI: 10.1177/17585732211008474] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Accepted: 03/16/2021] [Indexed: 12/31/2022]
Abstract
BACKGROUND Traumatic anterior shoulder dislocations can cause bony defects of the anterior glenoid rim and are often associated with recurrent shoulder instability. For large glenoid defects of 20-30% without a mobile bony fragment, glenoid reconstruction with bone grafts is often recommended. This review describes two broad categories of glenoid reconstruction procedures found in literature: coracoid transfers involving the Bristow and Latarjet procedures, and free bone grafting techniques. METHODS An electronic search of MEDLINE and PubMed was conducted to find original articles that described glenoid reconstruction techniques or modifications to existing techniques. RESULTS Coracoid transfers involve the Bristow and Latarjet procedures. Modifications to these procedures such as arthroscopic execution, method of graft attachment and orientation have been described. Free bone grafts have been obtained from the iliac crest, distal tibia, acromion, distal clavicle and femoral condyle. CONCLUSION Both coracoid transfers and free bone grafting procedures are options for reconstructing large bony defects of the anterior glenoid rim and have had similar clinical outcomes. Free bone grafts may offer greater flexibility in graft shaping and choice of graft size depending on the bone stock chosen. Novel developments tend towards minimising invasiveness using arthroscopic approaches and examining alternative non-rigid graft fixation techniques.
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Affiliation(s)
- Jeffrey A Zhang
- George AC Murrell, Orthopaedic Research Institute, Level 2, 4-10 South Street Kogarah, Sydney, NSW 2217, Australia.
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13
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Wei J, Lu M, Zhao L, Zeng X, He L. Free bone grafting improves clinical outcomes in anterior shoulder instability with bone defect: a systematic review and meta-analysis of studies with a minimum of 1-year follow-up. J Shoulder Elbow Surg 2022; 31:e190-e208. [PMID: 34801716 DOI: 10.1016/j.jse.2021.10.023] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/25/2021] [Revised: 10/08/2021] [Accepted: 10/23/2021] [Indexed: 02/01/2023]
Abstract
BACKGROUND Evidence on the efficacy and safety of the free bone grafting in treating anterior shoulder instability is limited. The purpose of this study was to systematically evaluate the clinical and imaging results of free bone grafting in treating anterior shoulder instability with glenoid bone defect and to explore the incidence of complications in clinically relevant subgroups. METHODS This systematic review was conducted per PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-analyses) guidelines. The PubMed, Embase, and Cochrane Library databases were searched up to January 29, 2021, for studies that had reported on free bone grafting in treating anterior shoulder instability with glenoid bone defect with a minimum of 1-year follow-up. Two researchers independently screened studies and extracted data. A random-effects model was used to pool data on clinical function scores, imaging results, and incidence of complications (recurrent instability and non-instability-related complications). Meta-regression analysis was used to evaluate the incidence of complications in different subgroups and investigate the sources of heterogeneity. RESULTS A total of 29 studies were included in the meta-analysis, comprising 840 patients (845 shoulders) with average ages ranging from 21 to 34.6 years. Compared with preoperatively, free bone grafting increased the postoperative Rowe score, American Shoulder and Elbow Surgeons score, Constant score, Subjective Shoulder Value, and Oxford Shoulder Instability Score by 53.16, 31.80, 20.81, 38.63, and 4.07 points, respectively, and reduced the visual analog scale pain score by 3 points on average. During the postoperative follow-up period, the rates of return to sport and return to preoperative levels were 84.2% and 73.1%, respectively. The imaging results showed that the free bone healing rate was 98.9% and the incidence of osteoarthritis was 10.9%. The incidence rates of recurrent instability and non-instability-related complications were 3.4% and 5.6%, respectively. Meta-regression analysis showed no evidence of effect modification by the year, follow-up time, proportion of male patients, autograft or allograft, and arthroscopy or open surgery on the incidence of complications. Subgroup analysis showed that the incidence rates of recurrent instability for open surgery, arthroscopy, allograft, autograft, Latarjet revision, and non-bone block revision were 4.1%, 2.3%, 1.5%, 4.4%, 10.3%, and 3.5%, respectively. CONCLUSION The application of free bone grafting in treating anterior shoulder instability with glenoid bone defect can effectively improve shoulder joint function and is associated with a high return-to-sport rate and a low overall recurrence rate, but there were some differences in the complications of recurrent instability and non-instability-related complications among the subgroups. Given that these results need to be confirmed via head-to-head comparisons, we recommend that future clinical and biomechanical studies focus on comparing and investigating the advantages and disadvantages of different surgical approaches, thus providing a basis for orthopedic surgeons to make reliable choices.
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Affiliation(s)
- Jinqiang Wei
- The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Mingfeng Lu
- Foshan Hospital of Traditional Chinese Medicine, Guangzhou University of Chinese Medicine, Foshan, China
| | - Lilian Zhao
- Foshan Hospital of Traditional Chinese Medicine, Guangzhou University of Chinese Medicine, Foshan, China.
| | - Xianzhong Zeng
- The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Lilei He
- Foshan Hospital of Traditional Chinese Medicine, Guangzhou University of Chinese Medicine, Foshan, China
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Anterior Shoulder Instability Part II-Latarjet, Remplissage, and Glenoid Bone-Grafting-An International Consensus Statement. Arthroscopy 2022; 38:224-233.e6. [PMID: 34332052 DOI: 10.1016/j.arthro.2021.07.023] [Citation(s) in RCA: 49] [Impact Index Per Article: 24.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Revised: 07/06/2021] [Accepted: 07/13/2021] [Indexed: 02/02/2023]
Abstract
PURPOSE The purpose of this study was to establish consensus statements via a modified Delphi process on the Latarjet procedure, remplissage, and glenoid-bone grafting for anterior shoulder instability. METHODS A consensus process on the treatment utilizing a modified Delphi technique was conducted, with 65 shoulder surgeons from 14 countries across 5 continents participating. Experts were assigned to one of 9 working groups defined by specific subtopics of interest within anterior shoulder instability. RESULTS The technical approaches identified in the statements on the Latarjet procedure and glenoid bone-graft were that a subscapularis split approach should be utilized, and that it is unclear whether a capsular repair is routinely required. Furthermore, despite similar indications, glenoid bone-grafting may be preferred over the Latarjet in patients with bone-loss greater than can be treated with a coracoid graft, and in cases of surgeon preference, failed prior Latarjet or glenoid bone-grafting procedure, and epilepsy. In contrast, the primary indications for a remplissage procedure was either an off-track or engaging Hill-Sachs lesion without severe glenoid bone loss. Additionally, in contrast to the bone-block procedure, complications following remplissage are rare, and loss of shoulder external rotation can be minimized by performing the tenodesis via the safe-zone and not over medializing the fixation. CONCLUSION Overall, 89% of statements reached unanimous or strong consensus. The statements that reached unanimous consensus were the prognostic factors that are important to consider in those undergoing a glenoid bone-grafting procedure including age, activity level, Hill-Sachs Lesion, extent of glenoid bone-loss, hyperlaxity, prior surgeries, and arthritic changes. Furthermore, there was unanimous agreement that it is unclear whether a capsular repair is routinely required with a glenoid bone graft, but it may be beneficial in some cases. There was no unanimous agreement on any aspect related to the Latarjet procedure or Remplissage. LEVEL OF EVIDENCE Level V, expert opinion.
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15
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Azizi S, Urbanschitz L, Bensler S, Lenz CG, Borbas P, Eid K. Structural and Functional Results of Subscapularis and Conjoint Tendon After Latarjet Procedure at 8-Year Average Follow-up. Am J Sports Med 2022; 50:321-326. [PMID: 34935511 DOI: 10.1177/03635465211061599] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND The Latarjet procedure involves initial dissection through a longitudinal split of the subscapularis tendon with only a final partial closure to accommodate the transferred coracoid bone. Furthermore, by transferring the coracoid bone block to the anterior glenoid, the surgeon completely alters the resting and dynamic route of the attached conjoint tendon. The eventual structural and functional integrity of the subscapularis and conjoint tendons is currently unknown. PURPOSE To examine the structural and functional integrity of the subscapularis and the conjoint tendon after the Latarjet procedure at an 8-year average follow-up. STUDY DESIGN Case series; Level of evidence, 4. METHODS Twenty patients with anterior shoulder instability at a mean age of 30 years (range, 19-50 years) underwent the open Latarjet procedure. Clinical examination at the final follow-up included quantitative isometric measurement of abduction and internal rotation strength compared with the nonoperative side. Patients were assessed via radiograph examination and preoperative computed tomography. Final position and healing of the transferred coracoid bone block were evaluated using standard radiographs. At follow-up, the subscapularis and conjoint tendon were evaluated via magnetic resonance imaging (MRI) with metal artifact reduction techniques and via ultrasound. RESULTS Nineteen of the 20 shoulders remained stable at the final follow-up; there was 1 redislocation (5%) after 14 months. The mean Rowe score was 83 points (SD, 17.9 points), the mean Constant score was 85 points (SD, 8.1 points), and the Subjective Shoulder Value was 80% (SD, 18%). The mean abduction strength of the operative shoulder was 7.41 ± 2.06 kg compared with 8.33 ± 2.53 kg for the nonoperative side (P = .02). The mean internal rotation strength at 0° for the operative shoulder was 8.82 ± 3.47 kg compared with 9.06 ± 3.01 kg for the nonoperative side (P = .36). The mean internal rotation strength in the belly-press position for the operative shoulder was 8.12 ± 2.89 kg compared with 8.50 ± 3.03 kg (P = .13). Four of 20 shoulders showed mild tendinopathic changes of the subscapularis tendon but no partial or complete tear. One patient exhibited fatty degeneration Goutallier stage 1. Conjoint tendon was in continuity in all 20 shoulders on MRI scans. CONCLUSION Abduction, but not internal rotation strength, was slightly reduced after the Latarjet procedure at a mean of 8 years of follow-up. The subscapularis tendon was intact based on ultrasound examination, and the conjoint tendon was intact based on MRI scans. Subscapularis muscle girth relative to the supraspinatus muscle remained intact from preoperative measurements based on MRI scans.
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Affiliation(s)
- Sebastien Azizi
- Department of Orthopedics, Kantonsspital Baden, Baden, Switzerland
| | | | - Susanne Bensler
- Department of Radiology, Kantonsspital Baden, Baden, Switzerland
| | | | | | - Karim Eid
- Department of Orthopedics, Kantonsspital Baden, Baden, Switzerland
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[Arthroscopic Pushlock anchor fixation with iliac creast bone autograft in the treatment of recurrent anterior shoulder instability with critical bone defect]. ZHONGGUO XIU FU CHONG JIAN WAI KE ZA ZHI = ZHONGGUO XIUFU CHONGJIAN WAIKE ZAZHI = CHINESE JOURNAL OF REPARATIVE AND RECONSTRUCTIVE SURGERY 2022; 36:143-148. [PMID: 35172397 PMCID: PMC8863527 DOI: 10.7507/1002-1892.202109044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
OBJECTIVE To evaluate the effectiveness of arthroscopic Pushlock anchor fixation with iliac creast bone autograft in the treatment of recurrent anterior shoulder instability with critical bone defect. METHODS The clinical data of 80 patients with recurrent anterior shoulder instability with critical bone defect treated by arthroscopic Pushlock anchor fixation with iliac creast bone autograft between January 2016 and January 2019 were retrospectively analyzed. The patients were all male; they were 18-45 years old at the surgery, with an average of 25 years old. The disease duration ranged from 3 months to 5 years, with an average of 2 years. The shoulder joint dislocated 3-50 times, with an average of 8 times. X-ray films, MRI, CT scans and three-dimensional reconstruction of the shoulder were performed before operation. The area of the anterior glenoid defect was 25%-45%, with an average of 27.3%. The shoulder mobility (forward flexion and external rotation in abduction at 90°), the Constant-Murley score, and the Rowe score were used to evaluate the shoulder function before operation and at last follow-up. RESULTS Patients were followed up 1-3 years, with an average of 2 years. No shoulder dislocation occurred again during follow-up. All partial graft absorption occurred after operation, CT scan showed that the graft absorption ratio was less than 30% at 1 week and 3 months after operation. CT three-dimensional reconstruction at 1 year after operation showed that all grafts had healed to the glenoid. The anterior glenoid bone defect was less than 5% (from 0 to 5%, with an average of 3.2%). At last follow-up, the shoulder mobility (forward flexion and external rotation in abduction at 90°), the Constant-Murley score, and the Rowe score significantly improved when compared with preoperative ones ( P<0.05). The shoulder mobility of external rotation in abduction at 90° of the affected side limited when compared with the healthy side [(6.7±5.1)°]. CONCLUSION Arthroscopic Pushlock anchor fixation with iliac creast bone autograft has a good effectiveness in the treatment of recurrent anterior shoulder instability with critical bone defect. The method is relatively simple and the learning curve is short.
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Differences in Patients' and Surgeons' Expectations before Shoulder Stabilization Surgery. J Clin Med 2021; 10:jcm10204661. [PMID: 34682779 PMCID: PMC8538762 DOI: 10.3390/jcm10204661] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Revised: 09/10/2021] [Accepted: 10/05/2021] [Indexed: 01/03/2023] Open
Abstract
Purpose: The primary goal of shoulder stabilization procedures is to re-establish stability and many surgeons measure the success after shoulder stabilization surgery only by the absence of re-dislocation. However, patients might also suffer from pain, loss of range of motion and strength as well as anxiety and stigmatization and therefore have other expectations from a stabilization surgery than just a stable shoulder. Purpose of this study was to analyze if surgeons know what their patients typically expect from a shoulder stabilization surgery. Furthermore, the aim was to analyze the influence of various factors on patients’ expectations. Materials and Methods: 204 patients with a diagnosis of shoulder instability scheduled for surgical treatment were included in this prospective multicentric study. Preoperatively, objective and subjective scores were obtained and patients were asked about their postoperative expectations. Additionally, 25 surgeons were interviewed with regard to what they think their patients expect from the surgery using standardized questions. Results: With regard to postoperative expectations surveyed by the Hospital for Special Surgery questionnaire (HSS), the most important goal to achieve for the patients was ‘stopping the shoulder from dislocation’, followed by ‘to improve the ability to exercise or participate in sports’ and ‘being the shoulder to be back the way it was before the issue started’. The ranking of factors for patients was ‘stability’ as the most important to achieve, followed by ‘movement’, ‘strength’, ‘pain’ and ‘cosmetics’. For surgeons, the order was ‘stability’ (p = 0.004 **), ‘movement’ (p = 0.225), ‘pain’ (p = 0.509), ‘strength’ (p = 0.007 **) and ‘cosmetics’ (p = 0.181). There was a significant difference between patients and surgeons with regard to gaining stability at the cost of movement (p = 0.001 **). Conclusion: Patients and surgeons expectations regarding outcome after surgical shoulder stabilization procedures are quite similar with limited topics of disagreement. Generally, surgeons tend to overrate the importance of stability at the costs of other factors.
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Ueda Y, Sugaya H, Takahashi N, Matsuki K, Tokai M, Morioka T, Hoshika S. Arthroscopic Iliac Bone Grafting for Traumatic Anterior Shoulder Instability With Significant Glenoid Bone Loss Yields Low Recurrence and Good Outcome at a Minimum of Five-Year Follow-Up. Arthroscopy 2021; 37:2399-2408. [PMID: 33771690 DOI: 10.1016/j.arthro.2021.03.028] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Revised: 03/03/2021] [Accepted: 03/10/2021] [Indexed: 02/02/2023]
Abstract
PURPOSE The purpose of this study was to investigate the clinical and radiographic outcomes of arthroscopic iliac bone grafting with capsulolabral reconstruction for severe glenoid bone loss with a minimum of 5 years' follow-up. METHODS The inclusion criterion was shoulders that underwent arthroscopic iliac bone grafting for >20%-25% glenoid defect between January 2007 and April 2014, and the exclusion criterion was <5 years' follow-up. Iliac crest bone grafts of approximately 2.0 cm length and 0.8 cm height were arthroscopically fixed to the anterior glenoid using 2 cannulated screws followed by capsulolabral repair. Rowe score, Western Ontario Shoulder Instability Index (WOSI), and passive range of motion were evaluated. Radiographic findings including the Kellgren and Lawrence osteoarthritis grade and graft integration on 3-dimensional computed tomography at the final follow-up were also evaluated. RESULTS Forty-eight shoulders met the inclusion criteria, and 24 shoulders with ≥5 years' follow-up were included (1 died; 23 were lost follow-up): 22 males, 2 females; a mean age at surgery, 30 years (range, 18-52 years); a mean follow-up of 8 years (range, 5-11 years). The mean preoperative glenoid bone defect was 22% (range, 20%-28%). All shoulders had a Hill-Sachs lesion including 4 on-track lesions. One shoulder experienced traumatic redislocation at 5 years after surgery. The scores significantly improved: Rowe score, 19 ± 8 to 94 ± 8 (P < .001); WOSI, 1547 ± 241 to 439 ± 318 (P < .001). Postoperative flexion showed significant improvement from 158 ± 18 to 169 ± 11 (P = .008), whereas internal rotation deteriorated from T8 ± 3 to T10 ± 3 (P = .005). Graft integration showed remodeling in 54% and excessive absorption in 13%. Osteoarthritis grades progressed significantly (P < .001), but only grade 1 osteoarthritic changes were seen, except for 4 shoulders with grade 2 osteoarthritis. CONCLUSIONS Arthroscopic iliac bone grafting for traumatic anterior shoulder instability with severe glenoid bone loss yielded satisfactory outcomes with mid-term follow-up. Arthritic changes progressed in half of the shoulders; however, most shoulders only demonstrated grade 1 osteoarthritis. LEVEL OF EVIDENCE Level IV, therapeutic case series.
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Affiliation(s)
- Yusuke Ueda
- Funabashi Orthopaedic Sports Medicine and Joint Center, Funabashi, Chiba
| | | | - Norimasa Takahashi
- Funabashi Orthopaedic Sports Medicine and Joint Center, Funabashi, Chiba
| | - Keisuke Matsuki
- Funabashi Orthopaedic Sports Medicine and Joint Center, Funabashi, Chiba.
| | | | - Takeshi Morioka
- Funabashi Orthopaedic Sports Medicine and Joint Center, Funabashi, Chiba
| | - Shota Hoshika
- Funabashi Orthopaedic Sports Medicine and Joint Center, Funabashi, Chiba
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Outcomes are comparable using free bone block autografts versus allografts for the management of anterior shoulder instability with glenoid bone loss: a systematic review and meta-analysis of "The Non-Latarjet". Knee Surg Sports Traumatol Arthrosc 2021; 29:2159-2174. [PMID: 32749510 DOI: 10.1007/s00167-020-06194-z] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/03/2020] [Accepted: 07/27/2020] [Indexed: 01/01/2023]
Abstract
PURPOSE Glenoid augmentation using free bone blocks for anterior shoulder instability has been proposed as an alternative to or bail-out for the Latarjet procedure. The purpose of this investigation was to systematically review and compare outcomes of patients undergoing glenoid augmentation using free bone block autografts versus allografts. METHODS A systematic review using PubMed, MEDLINE, Embase, and the Cochrane Library databases was performed in line with the PRISMA statement. Studies reporting outcomes of patients treated with free bone block procedures for anterior shoulder instability with minimum 2-year follow-up were included. Random effects modelling was used to compare patient-reported outcomes, return to sports, recurrent instability, non-instability related complications, and development of arthritis between free bone block autografts and allografts. RESULTS Eighteen studies comprising of 623 patients met the inclusion criteria for this investigation. There were six studies reporting on the use of allografts (of these, two used distal tibial, three iliac crest, and one femoral head allograft) in 173 patients and twelve studies utilizing autografts (of these, ten used iliac crest and two used free coracoid autograft) in 450 patients. Mean age was 28.7 ± 4.1 years for the allograft group and 27.8 ± 3.8 years for the autograft group (n.s). Mean follow-up was 98 months in autograft studies and 50.8 months for allograft studies (range 24-444 months, n.s). Overall mean increase in Rowe score was 56.2 with comparable increases between autografts and allografts (n.s). Pooled recurrent instability rates were 3% (95% CI, 1-7%; I2 = 77%) and did not differ between the groups (n.s). Arthritic progression was evident in 11% of autografts (95% CI, 2-27%; I2 = 90%) and 1% (95% CI, 0-8%; I2 = 63%) of allografts (n.s). The overall incidence of non-instability related complications was 5% (95% CI, 2-10%; I2 = 81%) and was similar between the groups (n.s). Pooled return to sports rate was 88% (95% CI, 76-96%; I2 = 76%). CONCLUSION Glenoid augmentation using free bone block autograft or allograft in the setting of recurrent anterior shoulder instability with glenoid bone loss is effective and safe. Outcomes and complication incidence using autografts and allografts were comparable. Due to the high degree of heterogeneity in the data and outcomes reported in available studies, which consist primarily of retrospective case series, future prospective trials investigating long-term outcomes using free bone block autograft versus allograft for anterior shoulder instability with glenoid bone loss are warranted. LEVEL OF EVIDENCE IV.
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Park I, Lee JH, Park JY, Shin SJ. Failure Rates After Revision Arthroscopic Stabilization for Recurrent Anterior Shoulder Instability Based on Anterior Capsulolabral Complex Conditions. Orthop J Sports Med 2021; 9:2325967121995891. [PMID: 33948442 PMCID: PMC8053759 DOI: 10.1177/2325967121995891] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Accepted: 12/07/2020] [Indexed: 11/22/2022] Open
Abstract
Background: A labral retear is an important contributing factor to surgical failure after arthroscopic soft tissue stabilization for recurrent anterior shoulder instability. However, surgeons frequently encounter poor tissue conditions in the anterior capsule, such as capsular tears, during revision surgery. Purpose: To analyze the clinical outcomes and failure rates of revision arthroscopic stabilization after failed Bankart repair based on the tissue conditions of the anterior capsule and the labrum. Outcomes were compared for revision after failed Bankart repair because of a labral retear versus a healed labrum but with capsular tears. Study Design: Cohort study; Level of evidence, 3. Methods: A total of 55 patients who underwent revision arthroscopic stabilization after failed Bankart repair were included. Revision surgery was indicated if patients had a history of recurrent instability with positive apprehension test results, regardless of magnetic resonance imaging (MRI) findings of a labral retear. Patients were allocated into 2 groups based on arthroscopic findings at the time of revision surgery: group 1 consisted of patients who had a healed labrum with definite anterior capsular tears, and group 2 comprised patients who had labral retears without capsular tears. Clinical outcomes were assessed using the American Shoulder and Elbow Surgeons score, Rowe score, and surgical failure rate. Results: Overall, 10 patients were included in group 1, and 45 patients were included in group 2. No capsular tears were detected on preoperative MRI or magnetic resonance arthrography scans in either group, whereas all patients in group 2 had evidence of anterior labral retears on imaging scans. After revision surgery, 9 patients (16.4%) showed surgical failure by 25.6 months postoperatively. Patients in group 1 had a significantly higher surgical failure rate than did those in group 2 (4 patients [40.0%] vs 5 patients [11.1%], respectively; P = .04). The incidence of capsular tears was significantly higher in patients with surgical failure versus those without surgical failure (44.4% vs 13.0%, respectively; P = .04). Conclusion: A capsular tear of the anterior capsulolabral complex was an important indicator for surgical failure after revision arthroscopic stabilization. If patients demonstrate symptomatic instability after arthroscopic soft tissue stabilization without evidence of labral retears on imaging scans, an anterior capsular tear should be considered as a possible factor for recurrence.
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Affiliation(s)
- In Park
- Department of Orthopedic Surgery, College of Medicine, Seoul Hospital, Ewha Womans University, Seoul, Republic of Korea
| | - Jae-Hyung Lee
- Center for Shoulder, Elbow & Sports Medicine, Neon Orthopaedic Clinic, Seoul, Republic of Korea
| | - Jin-Young Park
- Center for Shoulder, Elbow & Sports Medicine, Neon Orthopaedic Clinic, Seoul, Republic of Korea
| | - Sang-Jin Shin
- Department of Orthopedic Surgery, College of Medicine, Seoul Hospital, Ewha Womans University, Seoul, Republic of Korea
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Malahias MA, Mitrogiannis L, Gerogiannis D, Chronopoulos E, Kaseta MK, Antonogiannakis E. Non-rigid fixation of the glenoid bone block for patients with recurrent anterior instability and major glenoid bone loss: A systematic review. Shoulder Elbow 2021; 13:168-180. [PMID: 33897848 PMCID: PMC8039760 DOI: 10.1177/1758573219872512] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2019] [Revised: 06/05/2019] [Accepted: 07/29/2019] [Indexed: 11/17/2022]
Abstract
BACKGROUND New types of glenoid bone block fixation, involving suture buttons, suture anchors or even implant-free impaction of the graft, have been recently introduced. In contrast to screws which allow for a rigid fixation of the bone block, these alternative procedures provide a non-rigid type of fixation. METHODS Two reviewers independently conducted the search in a systematic way (according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) using the MEDLINE/PubMed database and the Cochrane Database of Systematic Reviews. These databases were queried with the terms "Latarjet" OR "Eden-Hybbinette" OR "bone block" AND "anterior" AND "shoulder" AND "instability." RESULTS Eight out of the 325 initial studies were finally chosen according to our inclusion-exclusion criteria. In total, 750 patients were included in this review. The overall anterior instability recurrence rate for patients treated with non-rigid fixation was 2.6%, while the overall rate of non-union or graft osteolysis was 5.4%. CONCLUSIONS Regardless of the graft type, bone block non-rigid fixation showed satisfactory clinical and functional outcomes for the treatment of anterior shoulder instability with substantial glenoid bone deficiency. Furthermore, non-rigid fixation resulted in adequate bone graft healing and osseous incorporation. Lastly, given the relative lack of data, further prospective controlled studies are required to assess bone block non-rigid fixation procedures in comparison with the traditional rigid (with screws) fixation techniques. LEVEL Systematic review, IV.
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Affiliation(s)
- Michael-Alexander Malahias
- 3rd Orthopaedic Department, Hygeia
Hospital, Athens, Greece,Michael-Alexander Malahias, Orthopaedic
Surgeon, 3rd Orthopaedic Department, Hygeia Hospital, Erythrou Stavrou 4,
Marousi 15123, Athens, Greece.
| | | | | | - Efstathios Chronopoulos
- 2nd Orthopaedic Department, School of
Medicine, National & Kapodistrian University of Athens, Athens, Greece
| | - Maria-Kyriaki Kaseta
- 2nd Orthopaedic Department, School of
Medicine, National & Kapodistrian University of Athens, Athens, Greece
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Gilat R, Haunschild ED, Lavoie-Gagne OZ, Tauro TM, Knapik DM, Fu MC, Cole BJ. Outcomes of the Latarjet Procedure Versus Free Bone Block Procedures for Anterior Shoulder Instability: A Systematic Review and Meta-analysis. Am J Sports Med 2021; 49:805-816. [PMID: 32795174 DOI: 10.1177/0363546520925833] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Free bone block (FBB) procedures for anterior shoulder instability have been proposed as an alternative to or bail-out for the Latarjet procedure. However, studies comparing the outcomes of these treatment modalities are limited. PURPOSE To systematically review and perform a meta-analysis comparing the clinical outcomes of patients undergoing anterior shoulder stabilization with a Latarjet or FBB procedure. STUDY DESIGN Systematic review and meta-analysis; Level of evidence, 4. METHODS PubMed, Embase, and the Cochrane Library databases were systematically searched from inception to 2019 for human-participants studies published in the English language. The search was performed according to the PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) statement including studies reporting clinical outcomes of patients undergoing Latarjet or FBB procedures for anterior shoulder instability with minimum 2-year follow-up. Case reports and technique articles were excluded. Data were synthesized, and a random effects meta-analysis was performed to determine the proportions of recurrent instability, other complications, progression of osteoarthritis, return to sports, and patient-reported outcome (PRO) improvement. RESULTS A total of 2007 studies were screened; of these, 70 studies met the inclusion criteria and were included in the meta-analysis. These studies reported outcomes on a total of 4540 shoulders, of which 3917 were treated with a Latarjet procedure and 623 were treated with an FBB stabilization procedure. Weighted mean follow-up was 75.8 months (range, 24-420 months) for the Latarjet group and 92.3 months (range, 24-444 months) for the FBB group. No significant differences were found between the Latarjet and the FBB groups in the overall random pooled summary estimate of the rate of recurrent instability (5% vs 3%, respectively; P = .09), other complications (4% vs 5%, respectively; P = .892), progression of osteoarthritis (12% vs 4%, respectively; P = .077), and return to sports (73% vs 88%; respectively, P = .066). American Shoulder and Elbow Surgeons scores improved after both Latarjet and FBB, with a significantly greater increase after FBB procedures (10.44 for Latarjet vs 32.86 for FBB; P = .006). Other recorded PRO scores improved in all studies, with no significant difference between groups. CONCLUSION Current evidence supports the safety and efficacy of both the Latarjet and FBB procedures for anterior shoulder stabilization in the presence of glenoid bone loss. We found no significant differences between the procedures in rates of recurrent instability, other complications, osteoarthritis progression, and return to sports. Significant improvement in PROs was demonstrated for both groups. Significant heterogeneity existed between studies on outcomes of the Latarjet and FBB procedures, warranting future high-quality, comparative studies.
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Affiliation(s)
- Ron Gilat
- Midwest Orthopaedics at Rush University Medical Center, Chicago, Illinois, USA.,Department of Orthopaedic Surgery, Shamir Medical Center and Tel Aviv University, Tel Aviv, Israel
| | - Eric D Haunschild
- Midwest Orthopaedics at Rush University Medical Center, Chicago, Illinois, USA
| | | | - Tracy M Tauro
- Midwest Orthopaedics at Rush University Medical Center, Chicago, Illinois, USA
| | - Derrick M Knapik
- University Hospitals Cleveland Medical Center, Department of Orthopaedic Surgery, Cleveland, Ohio, USA
| | - Michael C Fu
- Midwest Orthopaedics at Rush University Medical Center, Chicago, Illinois, USA
| | - Brian J Cole
- Midwest Orthopaedics at Rush University Medical Center, Chicago, Illinois, USA
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Verweij LPE, Pruijssen EC, Kerkhoffs GMMJ, Blankevoort L, Sierevelt IN, van Deurzen DFP, van den Bekerom MPJ. Treatment type may influence degree of post-dislocation shoulder osteoarthritis: a systematic review and meta-analysis. Knee Surg Sports Traumatol Arthrosc 2021; 29:2312-2324. [PMID: 32936334 PMCID: PMC8225537 DOI: 10.1007/s00167-020-06263-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2020] [Accepted: 08/28/2020] [Indexed: 02/06/2023]
Abstract
PURPOSE Age at primary dislocation, recurrence, and glenoid bone loss are associated with development of osteoarthritis (OA). However, an overview of OA following traumatic anterior shoulder instability is lacking and it is unclear to what degree type of surgery is associated with development of OA in comparison to non-operative treatment. The aim of this study was to determine the degree of OA at long-term follow-up after non-operative and operative treatments for patients with anterior shoulder instability. Surgery is indicated when patients experience recurrence and this is associated with OA; therefore, it was hypothesized that shoulders show a higher proportion or degree of OA following operative treatment compared to non-operative treatment. METHODS A literature search was performed in the PubMed/Medline, EMBASE, and Cochrane databases. Articles reporting the degree of OA that was assessed with the Samilson-Prieto or Buscayret OA classification method after non-operative and operative treatment for anterior shoulder instability with a minimum of 5 years follow-up were included. RESULTS Thirty-six articles met the eligibility criteria of which 1 reported the degree of OA for non-operative treatment and 35 reported the degree of OA for 9 different operative procedures. A total of 1832 patients (1854 shoulders) were included. OA proportions of non-operative and operative treatments are similar at any point of follow-up. The Latarjet procedure showed a lower degree of OA compared to non-operative treatment and the other operative procedures, except for the Bristow procedure and Rockwood capsular shift. The meta-analyses showed comparable development of OA over time among the treatment options. An increase in OA proportion was observed when comparing the injured to the contralateral shoulder. However, a difference between the operative subgroups was observed in neither analysis. CONCLUSION Non-operative and operative treatments show similar OA proportions at any point of follow-up. The hypothesis that shoulders showed a higher proportion or degree of OA following operative treatment compared to non-operative treatment is not supported by the data. Operative treatment according to the Latarjet procedure results in a lower degree of OA compared to other treatments, including non-operative treatment. LEVEL OF EVIDENCE IV.
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Affiliation(s)
- Lukas P E Verweij
- Department of Orthopedic Surgery, Amsterdam Movement Sciences, Amsterdam UMC, location AMC, University of Amsterdam, Meibergdreef 9, 1105 AZ, Amsterdam, The Netherlands.
- Academic Center for Evidence-based Sports Medicine (ACES), Amsterdam UMC, Amsterdam, The Netherlands.
- Amsterdam Collaboration for Health and Safety in Sports (ACHSS), International Olympic Committee (IOC) Research Center, Amsterdam UMC, Amsterdam, The Netherlands.
| | - Erik C Pruijssen
- Department of Orthopedic Surgery, Amsterdam Movement Sciences, Amsterdam UMC, location AMC, University of Amsterdam, Meibergdreef 9, 1105 AZ, Amsterdam, The Netherlands
| | - Gino M M J Kerkhoffs
- Department of Orthopedic Surgery, Amsterdam Movement Sciences, Amsterdam UMC, location AMC, University of Amsterdam, Meibergdreef 9, 1105 AZ, Amsterdam, The Netherlands
- Academic Center for Evidence-based Sports Medicine (ACES), Amsterdam UMC, Amsterdam, The Netherlands
- Amsterdam Collaboration for Health and Safety in Sports (ACHSS), International Olympic Committee (IOC) Research Center, Amsterdam UMC, Amsterdam, The Netherlands
| | - Leendert Blankevoort
- Department of Orthopedic Surgery, Amsterdam Movement Sciences, Amsterdam UMC, location AMC, University of Amsterdam, Meibergdreef 9, 1105 AZ, Amsterdam, The Netherlands
- Academic Center for Evidence-based Sports Medicine (ACES), Amsterdam UMC, Amsterdam, The Netherlands
- Amsterdam Collaboration for Health and Safety in Sports (ACHSS), International Olympic Committee (IOC) Research Center, Amsterdam UMC, Amsterdam, The Netherlands
| | - Inger N Sierevelt
- Department of Orthopedic Surgery, Amsterdam Movement Sciences, Amsterdam UMC, location AMC, University of Amsterdam, Meibergdreef 9, 1105 AZ, Amsterdam, The Netherlands
- Academic Center for Evidence-based Sports Medicine (ACES), Amsterdam UMC, Amsterdam, The Netherlands
- Amsterdam Collaboration for Health and Safety in Sports (ACHSS), International Olympic Committee (IOC) Research Center, Amsterdam UMC, Amsterdam, The Netherlands
- Specialized Center of Orthopedic Research and Education (SCORE), Xpert Orthopedics, Amsterdam, The Netherlands
| | - Derek F P van Deurzen
- Department of Orthopedic Surgery, Shoulder and Elbow Unit, Onze Lieve Vrouwe Gasthuis, Amsterdam, The Netherlands
| | - Michel P J van den Bekerom
- Department of Orthopedic Surgery, Shoulder and Elbow Unit, Onze Lieve Vrouwe Gasthuis, Amsterdam, The Netherlands
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Boehm E, Minkus M, Moroder P, Scheibel M. Arthroscopic iliac crest bone grafting in recurrent anterior shoulder instability: minimum 5-year clinical and radiologic follow-up. Knee Surg Sports Traumatol Arthrosc 2021; 29:266-274. [PMID: 32285158 PMCID: PMC7862210 DOI: 10.1007/s00167-020-05986-7] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/23/2019] [Accepted: 04/07/2020] [Indexed: 12/14/2022]
Abstract
PURPOSE To investigate the clinical and radiologic mid- to long-term results of arthroscopic iliac crest bone-grafting for anatomic glenoid reconstruction in patients with recurrent anterior shoulder instability. METHODS Seventeen patients were evaluated after a minimum follow-up of 5 years. Clinical [range of motion, subscapularis tests, apprehension sign, Subjective Shoulder Value (SSV), Constant Score (CS), Rowe Score (RS), Walch Duplay Score (WD), Western Ontario Shoulder Instability Index (WOSI)], and radiologic [X-ray (true a.p., Bernageau and axillary views) and computed tomography (CT)] outcome parameters were assessed. RESULTS Fourteen patients [mean age 31.1 (range 18-50) years] were available after a follow-up period of 78.7 (range 60-110) months. The SSV averaged 87 (range 65-100) %, CS 94 (range 83-100) points, RS 89 (range 30-100) points, WD 87 (range 25-100) points, and WOSI 70 (range 47-87) %. The apprehension sign was positive in two patients (14%). One patient required an arthroscopic capsular plication due to a persisting feeling of instability, while the second patient experienced recurrent dislocations after a trauma, but refused revision surgery. CT imaging showed a significant increase of the glenoid index from preoperative 0.8 ± 0.04 (range 0.7-0.8) to 1.0 ± 0.11 (range 0.8-1.2) at the final follow-up (p < 0.01). CONCLUSION Arthroscopic reconstruction of anteroinferior glenoid defects using an autologous iliac crest bone-grafting technique yields satisfying clinical and radiologic results after a mid- to long-term follow-up period. Postoperative re-dislocation was experienced in one (7.1%) of the patients due to a trauma and an anatomic reconstruction of the pear-shaped glenoid configuration was observed. LEVEL OF EVIDENCE IV.
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Affiliation(s)
- Elisabeth Boehm
- Department of Shoulder and Elbow Surgery, Center for Musculoskeletal Surgery, Charité-Universitätsmedizin Berlin, Augustenburger Platz 1, 13353, Berlin, Germany
| | - Marvin Minkus
- Department of Shoulder and Elbow Surgery, Center for Musculoskeletal Surgery, Charité-Universitätsmedizin Berlin, Augustenburger Platz 1, 13353, Berlin, Germany
| | - Philipp Moroder
- Department of Shoulder and Elbow Surgery, Center for Musculoskeletal Surgery, Charité-Universitätsmedizin Berlin, Augustenburger Platz 1, 13353, Berlin, Germany
| | - Markus Scheibel
- Department of Shoulder and Elbow Surgery, Center for Musculoskeletal Surgery, Charité-Universitätsmedizin Berlin, Augustenburger Platz 1, 13353, Berlin, Germany.
- Department of Shoulder and Elbow Surgery, Schulthess Clinic Zurich, Zurich, Switzerland.
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Plachel F, Siegert P, Rüttershoff K, Thiele K, Akgün D, Moroder P, Scheibel M, Gerhardt C. Long-term Results of Arthroscopic Rotator Cuff Repair: A Follow-up Study Comparing Single-Row Versus Double-Row Fixation Techniques. Am J Sports Med 2020; 48:1568-1574. [PMID: 32391732 DOI: 10.1177/0363546520919120] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Arthroscopic rotator cuff repair (RCR) with suture anchor-based fixation techniques has replaced former open and mini-open approaches. Nevertheless, long-term studies are scarce, and lack of knowledge exists about whether single-row (SR) or double-row (DR) methods are superior in clinical and anatomic results. PURPOSE To analyze long-term results after arthroscopic RCR in patients with symptomatic rotator cuff tears and to compare functional and radiographic outcomes between SR and DR repair techniques at least 10 years after surgery. STUDY DESIGN Cohort study; Level of evidence, 3. METHODS Between 2005 and 2006, 40 patients with a symptomatic full-thickness rotator cuff tear (supraspinatus tendon tear with or without a tear of the infraspinatus tendon) underwent arthroscopic RCR with either an SR repair with a modified Mason-Allen suture-grasping technique (n = 20) or a DR repair with a suture bridge fixation technique (n = 20). All patients were enrolled in a long-term clinical evaluation, with the Constant score (CS) as the primary outcome measure. Furthermore, an ultrasound examination was performed to assess tendon integrity and conventional radiographs to evaluate secondary glenohumeral osteoarthritis. RESULTS A total of 27 patients, of whom 16 were treated with an SR repair and 11 with a DR repair, were followed up after a mean ± SD period of 12 ± 1 years (range, 11-14 years). Five patients underwent revision surgery on the affected shoulder during follow-up period, which led to 22 patients being included. The overall CS remained stable at final follow-up when compared with short-term follow-up (81 ± 8 vs 83 ± 19 points; P = .600). An increasing number of full-thickness retears were found: 6 of 22 (27%) at 2 years and 9 of 20 (45%) at 12 years after surgery. While repair failure negatively affected clinical results as shown by the CS (P < .05), no significant difference was found between the fixation techniques (P = .456). In general, progressive osteoarthritic changes were observed, with tendon integrity as a key determinant. CONCLUSION Arthroscopic RCR with either an SR or a DR fixation technique provided good clinical long-term results. Repair failure was high, with negative effects on clinical results and the progression of secondary glenohumeral osteoarthritis. While DR repair slightly enhanced tendon integrity at long-term follow-up, no clinical superiority to SR repair was found.
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Affiliation(s)
- Fabian Plachel
- Center for Musculoskeletal Surgery, Campus Virchow, Charité-Universitaetsmedizin, Berlin, Germany
| | - Paul Siegert
- Center for Musculoskeletal Surgery, Campus Virchow, Charité-Universitaetsmedizin, Berlin, Germany
| | - Katja Rüttershoff
- Center for Musculoskeletal Surgery, Campus Virchow, Charité-Universitaetsmedizin, Berlin, Germany
| | - Kathi Thiele
- Center for Musculoskeletal Surgery, Campus Virchow, Charité-Universitaetsmedizin, Berlin, Germany
| | - Doruk Akgün
- Center for Musculoskeletal Surgery, Campus Virchow, Charité-Universitaetsmedizin, Berlin, Germany
| | - Philipp Moroder
- Center for Musculoskeletal Surgery, Campus Virchow, Charité-Universitaetsmedizin, Berlin, Germany
| | - Markus Scheibel
- Center for Musculoskeletal Surgery, Campus Virchow, Charité-Universitaetsmedizin, Berlin, Germany.,Department for Shoulder and Elbow Surgery, Schulthess Clinic, Zürich, Switzerland
| | - Christian Gerhardt
- Center for Musculoskeletal Surgery, Campus Virchow, Charité-Universitaetsmedizin, Berlin, Germany
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Lu J, Guo SC, Wang QY, Sheng JG, Tao SC. J-bone graft with double locking plate: a symphony of mechanics and biology for atrophic distal femoral non-union with bone defect. J Orthop Surg Res 2020; 15:144. [PMID: 32293488 PMCID: PMC7161247 DOI: 10.1186/s13018-020-01636-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Accepted: 03/13/2020] [Indexed: 12/13/2022] Open
Abstract
Objective Atrophic distal femur non-union with bone defect (ADFNBD) has been a worldwide challenge to treat due to the associated biological and mechanical problems. The purpose of this study was to introduce a new solution involving the use of a J-shaped iliac crest bone graft (J-bone) combined with double-plate (DP) in the treatment of femoral non-union. Methods Clinically, 18 patients with ADFNBD were included in this retrospective study and were treated with a combination of J-bone graft and DP. The average follow-up time was 22.1 ± 5.5 months (range, 14 to 34 months). The imaging information and knee joint activity tests and scores were used to evaluate the time to weight-bearing, the time to non-union healing, and the knee joint mobility. A finite element analysis was used to evaluate the differences between the following: (1) the use of a lateral locking plate (LLP) only group (LLP-only), (2) a DP only group (DP-only), (3) a DP with a J-bone group (DP+J-bone), and (4) an LLP with a J-bone group (LLP+J-bone) in the treatment of ADFNBD. A finite element analysis ABAQUS 6.14 (Dassault systems, USA) was used to simulate the von Mises stress distribution and model displacement of the plate during standing and normal walking. Result All patients with non-union and bone defect in the distal femur achieved bone healing at an average of 22.1 ± 5.5 months (range, 14 to 34 months) postoperatively. The average healing time was 6.72 ± 2.80 months. The knee Lysholm score was significantly improved compared with that before surgery. Under both 750 N and 1800 N axial stress, the maximum stress with the DP+J-bone structure was less than that of the LLP+J-bone and DP-only structures, and the maximum stress of J-bone in the DP+J-bone was significantly less than that of the LLP+J-bone+on structure. The fracture displacement of the DP+J-bone structure was also smaller than that of the LLP+J-bone and DP-only structures. Conclusion J-bone combined with DP resulted in less maximum stress and less displacement than did a J-bone combined with an LLP or a DP-only graft for the treatment of ADFNBD. This procedure was associated with less surgical trauma, early rehabilitation exercise after surgery, a high bone healing rate, and a satisfactory rate of functional recovery. Therefore, a combination of J-bone and DP is an effective and important choice for the treatment of ADFNBD.
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Affiliation(s)
- Jian Lu
- Department of Orthopaedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road, Shanghai, 200233, China.,The Third Affiliated Hospital of Soochow University, Changzhou, 213003, Jiangsu, China
| | - Shang-Chun Guo
- Institute of Microsurgery on Extremities, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road, Shanghai, 200233, China
| | - Qi-Yang Wang
- Department of Orthopaedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road, Shanghai, 200233, China
| | - Jia-Gen Sheng
- Department of Orthopaedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road, Shanghai, 200233, China.
| | - Shi-Cong Tao
- Department of Orthopaedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road, Shanghai, 200233, China.
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Anderl W, Heuberer PR, Pauzenberger L. Arthroscopic, Implant-Free Bone-Grafting for Shoulder Instability with Glenoid Bone Loss. JBJS Essent Surg Tech 2020; 10:ST-D-18-00109. [PMID: 32368408 DOI: 10.2106/jbjs.st.18.00109] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Anterior shoulder instability is commonly associated with injuries to the labrocapsular structures of the glenohumeral joint and with osseous glenoid defects of varying degree. If the bone defect exceeds a clinically relevant threshold, mere soft-tissue repairs result in high rates of recurrent instability and the glenoid needs to be reconstructed with osseous augmentation. The most popular techniques for glenoid reconstruction include variations of coracoid transfer or bone-block procedures; however, these procedures are not free from risks and complications, which are often related to the method of fixation1. An alternative to the widely used coracoid transfer variations or bone-block procedures is anatomic implant-free glenoid reconstruction with a J-shaped iliac-crest bone graft. After press-fit fixation, the graft undergoes a physiological remodeling process resulting in the restoration of native scapular neck morphology. Although not as widely known, the open J-bone-graft procedure has been successfully used for the treatment of glenoid bone loss for nearly 3 decades2-4. The arthroscopic J-bone-graft technique represents an innovative advancement of the open procedure. Early to midterm follow-up of the arthroscopic J-bone-graft technique has revealed excellent clinical results1. Description The major steps of the procedure, which are demonstrated in the present video article, include (1) detachment of the labrocapsular ligamentous complex and preparation of the anterior aspect of the glenoid, (2) establishment of a deep anterior-inferior portal and splitting of the subscapularis tendon, (3) introduction of the "waterslide," (4) osteotomy at the scapular neck 30° relative to the glenoid surface and trial impaction, (5 and 6) harvesting and preparation of a J-shaped bicortical iliac-crest bone graft, (7) press-fit impaction of the bone graft in the prepared osteotomy over the "waterslide", and (8) capsuloligamentous repair over the graft. Alternatives Coracoid transfer (Latarjet-Bristow), iliac-crest bone-grafting, and distal tibial allograft. Rationale Although widely in use, nonanatomic coracoid transfer procedures or bone-block techniques relying on hardware fixation are associated with specific complications, including nonunion, osteolysis, coracoid fractures, hardware complications, and difficult revision1. Many of these disadvantages can be avoided by the use of anatomic implant-free glenoid reconstruction with a J-shaped iliac-crest bone graft. After press-fit fixation, the graft undergoes a physiological remodeling process that follows the law of bone adaptation to mechanical stresses described by Wolff, which ultimately results in the restoration of a nearly native anterior scapular neck morphology4. The open version of this technique has been successfully used for over 3 decades. The arthroscopic, minimally invasive variation of the J-bone-graft technique presented in this video article represents a further advancement of the anatomic nature of the procedure. Expected Outcomes The arthroscopic implant-free J-bone-graft technique is an alternative to other procedures widely used for the treatment of anterior glenoid bone defects. The main advantage of this technique is the avoidance of severe complications that arise from the nonanatomic reconstruction and fixation methods found with other procedures1. Early to midterm follow-up of the arthroscopic J-bone-graft technique has revealed excellent clinical results, and the traditional open technique has been in use successfully for over 3 decades2-5. Previous patients have been able to return to a variety of occupational and athletic activities including overhead, throwing, and contact sports. Return to daily living and to moderate athletic activities is usually possible within 3 months. Return to competition is allowed after 6 months2-5. Important Tips •Avoid intraoperative graft fractures by applying strictly axial force during impaction.•Reduce the risk of glenoid fractures by performing an oblique osteotomy at an angle of 20° to 30° and 5 mm medial to the glenoid surface.•The postoperative physiological remodeling process determines ultimate graft fixation and glenohumeral stability. Keep this in mind when allowing return to activities.
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Return to sports after glenoid reconstruction using an implant-free iliac crest bone graft. Orthop Traumatol Surg Res 2019; 105:1471-1479. [PMID: 31727586 DOI: 10.1016/j.otsr.2019.07.012] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Revised: 05/06/2019] [Accepted: 07/16/2019] [Indexed: 02/02/2023]
Abstract
PURPOSE The purpose of this study was to evaluate sports ability and the rate of return to sports after implant-free iliac bone graft for recurrent, anterior shoulder instability and anterior glenoid bone loss. Subgroups of younger and older patients and patients who had previous arthroscopic Bankart surgery and those who did not have such surgery before implant-free iliac bone graft were formed and compared. METHODS We retrospectively analyzed 34 patients; 14 patients had previous arthroscopic Bankart surgery, and 20 patients did not have the surgery; The median age at the time of iliac bone graft was 35.3 years (range, 23 to 75), 17 patients were over the age of 35, and 17 patients were under the age of 35. The mean follow-up was 40 months (range: 25 to 56). RESULTS All the 34 patients were engaged in pre- and post-operative sport, which represents a return to sport rate of 100%. Although the number of sport disciplines decreased significantly from 6 before the operation to 4.8 after the operation (p=0.002), the number of sports sessions per week did not change significantly, and the duration per session did not change significantly. More than two-thirds of all patients returned to sports within 6 months. Overall, 41% of patients changed sport disciplines, 15% of whom cited shoulder-related causes; however, all patients returned to the same sport level. CONCLUSIONS Overall and within the subgroups, the return to sport rate after implant-free iliac bone grafting was high, with a high sense of well-being. The number of sport disciplines decreased significantly and more than one-third of the patients changed disciplines, of which 15% percent changed due to shoulder-related causes. The sport level remained equal, and no other parameters changed significantly compared with the time before the onset of restrictive shoulder symptoms.
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Repair failure increases the risk of developing secondary glenohumeral osteoarthritis: A long-term follow-up after open repair of large subscapularis tendon tears. Orthop Traumatol Surg Res 2019; 105:1529-1533. [PMID: 31732397 DOI: 10.1016/j.otsr.2019.09.021] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2019] [Revised: 08/21/2019] [Accepted: 09/17/2019] [Indexed: 02/02/2023]
Abstract
BACKGROUND The subscapularis musculotendinous unit provides a stabilizing effect on the glenohumeral joint and thus, enables normal active range of motion. As pathologies of the subscapularis tendon (SSC) are diagnosed with increased regularity, treatment strategies and their long-term consequences are of relevant interest. Therefore, the primary objective of this retrospective case series was to evaluate clinical and radiological long-term results after open repair of large SSC tears. HYPOTHESIS Repair failure negatively influences clinical outcomes and the progression of secondary glenohumeral osteoarthritis (OA). METHODS Between 1998 and 2007, 24 patients with traumatic large (Lafosse III and IV) SSC tears were treated with an open transosseous repair technique. Of those, 20 patients (83%) with a mean age of 55±8 years (range, from 31 to 68 years) at the time of surgery were subjected to a long-term follow-up after a mean of 14±3 years (range, from 10 to 18 years). The Subjective Shoulder Value (SSV), the Constant Score (CS), the University of California at Los Angeles (UCLA) Shoulder Score, and the American Society for Shoulder and Elbow Surgeons (ASES) Score were obtained. Magnetic resonance imaging (MRI) was performed to evaluate tendon integrity. The progression of secondary glenohumeral OA from pre- to postoperative was analyzed using the collective instability arthropathy (CIA) score. RESULTS One patient (5%) had to undergo revision surgery due to a symptomatic re-tear of the SSC tendon. Besides that, the mean SSV of the affected shoulder was 83%±12, the CS 78±10, the UCLA 32±2, and the ASES 89±14 points, respectively. MRI revealed a re-tear of the SSC tendon in 4 patients (29%). On the affected shoulder, glenohumeral OA progressed significantly from pre- (CIA, 0.3±0.5) to postoperative (CIA, 1.7±0.9; p=0.003) and was significantly associated with repair failure (p=0.040). CONCLUSION Open repair of large SSC tears yielded good clinical long-term results. Nevertheless, repair failure was common and, in the further course, negatively affected clinical outcomes and the progression of secondary glenohumeral OA. LEVEL OF EVIDENCE IV; retrospective case series.
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Bokshan SL, Gil JA, DeFroda SF, Badida R, Crisco JJ, Owens BD. Biomechanical Comparison of the Long Head of the Biceps Tendon Versus Conjoint Tendon Transfer in a Bone Loss Shoulder Instability Model. Orthop J Sports Med 2019; 7:2325967119883549. [PMID: 31803788 PMCID: PMC6878610 DOI: 10.1177/2325967119883549] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Background: Augmentation of Bankart repair with long head of the biceps tendon transfer has been previously described, although there is a paucity of literature describing its biomechanical effects. Purpose/Hypothesis: The purpose of this study was to assess the effect of augmenting Bankart repair with either the conjoint tendon or the long head of the biceps tendon, both with and without subcritical (13%) glenoid bone loss. We hypothesized that, in a cadaveric model, augmenting Bankart repair with the long head of the biceps tendon would restore a greater degree of stability compared with augmenting Bankart repair with the conjoint tendon. Study Design: Controlled laboratory study. Methods: A total of 12 cadaveric shoulders were tested on a 6-degrees-of-freedom robotic musculoskeletal simulator to measure the peak resistance force due to an anterior displacement of 1 cm. The rotator cuff muscles were loaded during testing to simulate physiological conditions. The following test conditions were used for each specimen: (1) intact shoulder, (2) Bankart lesion with 13% anterior bone loss, (3) 13% bone loss with Bankart repair (anchors placed at the 3-, 4-, and 5-o’clock positions), (4) 13% bone loss with both Bankart repair and transfer of the long head of the biceps tendon, and (5) 13% bone loss with Bankart repair and transfer of the conjoint tendon. Results: Labral repair with the addition of long head of the biceps tendon transfer had the greatest peak resistance force to anterior displacement among all groups (54.1 ± 5.5 N) and was significantly stronger than both standard Bankart repair by 16.3% (46.5 ± 7.6 N; P = .039) and the conjoint transfer procedure by 16.6% (46.4 ± 7.7 N; P = .008). Conclusion: Given the susceptibility of recurrent instability in shoulders with subcritical bone loss after isolated labral repair, it is important to consider augmenting Bankart repair in high-risk patients to avoid potential recurrence and the need for reoperations. Transferring the long head of the biceps tendon to the anterior glenoid represents one possible augmentation. Clinical Relevance: We present biomechanical data for a relatively novel technique for augmenting capsulolabral repair strength in an anterior instability model with subcritical bone loss. These data represent biomechanical justification for the utilization of this relatively novel technique.
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Affiliation(s)
- Steven L. Bokshan
- Department of Orthopaedic Surgery, Warren Alpert Medical School, Brown University, Providence, Rhode Island, USA
- Steven L. Bokshan, MD, Department of Orthopaedic Surgery, Warren Alpert Medical School, Brown University, 593 Eddy Street, Providence, RI 02903, USA ()
| | - Joseph A. Gil
- Department of Orthopaedic Surgery, Warren Alpert Medical School, Brown University, Providence, Rhode Island, USA
| | - Steven F. DeFroda
- Department of Orthopaedic Surgery, Warren Alpert Medical School, Brown University, Providence, Rhode Island, USA
| | - Rohit Badida
- Department of Orthopaedic Surgery, Warren Alpert Medical School, Brown University, Providence, Rhode Island, USA
| | - Joseph J. Crisco
- Department of Orthopaedic Surgery, Warren Alpert Medical School, Brown University, Providence, Rhode Island, USA
| | - Brett D. Owens
- Department of Orthopaedic Surgery, Warren Alpert Medical School, Brown University, Providence, Rhode Island, USA
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Moroder P, Schulz E, Wierer G, Auffarth A, Habermeyer P, Resch H, Tauber M. Neer Award 2019: Latarjet procedure vs. iliac crest bone graft transfer for treatment of anterior shoulder instability with glenoid bone loss: a prospective randomized trial. J Shoulder Elbow Surg 2019; 28:1298-1307. [PMID: 31129017 DOI: 10.1016/j.jse.2019.03.035] [Citation(s) in RCA: 85] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/13/2019] [Revised: 03/01/2019] [Accepted: 03/07/2019] [Indexed: 02/01/2023]
Abstract
BACKGROUND The Latarjet and iliac crest bone graft transfer (ICBGT) procedures are competing treatment options for anterior shoulder instability with glenoid bone loss. METHODS In this bicentric prospective randomized study, 60 patients with anterior shoulder instability and glenoid bone loss were included and randomized to either an open Latarjet or open ICBGT (J-bone graft) procedure. Clinical evaluation was completed before surgery and 6, 12, and 24 months after surgery, including the Western Ontario Shoulder Instability index, Rowe score, Subjective Shoulder Value, pain level, satisfaction level, and work and sports impairment, as well as assessment of instability, range of motion, and strength. Adverse events were prospectively recorded. Radiographic evaluation included preoperative, postoperative, and follow-up computed tomography analysis. RESULTS None of the clinical scores showed a significant difference between the 2 groups (P > .05). Strength and range of motion showed no significant differences except for diminished internal rotation capacity in the Latarjet group at every follow-up time point (P < .05). A single postoperative traumatic subluxation event occurred in 2 ICBGT patients and 1 Latarjet patient. The type and severity of other adverse events were heterogeneous. Donor-site sensory disturbances were observed in 27% of the ICBGT patients. Computed tomography scans revealed a larger glenoid augmentation effect of the ICBGTs; this, however, was attenuated at follow-up. CONCLUSION The Latarjet and ICBGT procedures for the treatment of anterior shoulder instability with glenoid bone loss showed no difference in clinical and radiologic outcomes except for significantly worse internal rotation capacity in the Latarjet group and frequently noted donor-site sensory disturbances in the ICBGT group.
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Affiliation(s)
- Philipp Moroder
- Department for Shoulder and Elbow Surgery, Center for Musculoskeletal Surgery, Campus Virchow, Charité-Universitaetsmedizin Berlin, Berlin, Germany.
| | - Eva Schulz
- Department of Traumatology and Sports Injuries, Paracelsus Medical University, Salzburg, Austria
| | - Guido Wierer
- Department of Traumatology and Sports Injuries, Paracelsus Medical University, Salzburg, Austria
| | - Alexander Auffarth
- Department of Traumatology and Sports Injuries, Paracelsus Medical University, Salzburg, Austria
| | - Peter Habermeyer
- Department of Shoulder and Elbow Surgery, ATOS Clinic Munich, Munich, Germany
| | - Herbert Resch
- Department of Traumatology and Sports Injuries, Paracelsus Medical University, Salzburg, Austria
| | - Mark Tauber
- Department of Shoulder and Elbow Surgery, ATOS Clinic Munich, Munich, Germany
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