1,663 results match your criteria: "Anterior Glenohumeral Instability"

[Influence analysis of glenohumeral bone structure on anterior shoulder instability].

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi

December 2024

Department of Orthopedics, Sports Medicine Center, West China Hospital, Sichuan University, Chengdu Sichuan, 610041, P. R. China.

Objective: To investigate the effect of glenohumeral bone structure on anterior shoulder instability by three-dimensional CT reconstruction.

Methods: The clinical data of 48 patients with unilateral anterior shoulder dislocation (instability group) and 46 patients without shoulder joint disease (control group) admitted between February 2012 and January 2024 were retrospectively analyzed. There was no significant difference in gender and side between the two groups ( >0.

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Article Synopsis
  • The study aimed to compare the image quality and visibility of lesions in zero echo time (ZTE) MRI using a deep learning (DL) algorithm against conventional reconstruction methods, and to evaluate DL ZTE's effectiveness in assessing bone loss for shoulder instability compared to CT scans.
  • Forty-four patients with shoulder instability underwent both ZTE MRI and CT scans, with images evaluated by two radiologists for clarity, resolution, and how well they showed lesions, using a rating scale.
  • Results indicated that DL ZTE MRI images had superior resolution and showed lesions more clearly than conventional methods, with excellent agreement between DL ZTE and CT scans for measuring bone parameters.
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Background: The inferior glenohumeral ligament (IGHL) comprising the anterior and posterior bands with interposing axillary pouch is an important static stabilizer of anterior translation and external rotation (ER) in the 90-degree abduction position. No literature is available to determine any ideal graft or isometric point for fixation of any graft to replace the functionality of IGHL such that the tensile stress acting on the graft is under the limits of the tensile properties of the graft used for reconstruction.

Methods: Using finite element method analysis (FEM) of the long head of the biceps tendon (LHBT) with modeling and simulation process, the ultimate tensile strength of the LHBT at the different clock positions of the humeral head attachment and angular positions of the humerus were determined through a combination of Taguchi Design of Experiments and simulation using ANSYS (Analysis system) software.

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Arthroscopic Bankart repair versus arthroscopic Latarjet for anterior shoulder instability in adolescents.

Bone Jt Open

November 2024

Department of Orthopedic Surgery and Traumatology, Shoulder and Elbow Reconstructive Surgery Unit, Hospital Universitario Fundación Jiménez Díaz, Universidad Autónoma, Madrid, Spain.

Aims: The Bankart and Latarjet procedures are two of the most common surgical techniques to treat anterior shoulder instability with satisfactory clinical and functional outcomes. However, the outcomes in the adolescent population remain unclear, and there is no information regarding the arthroscopic Latarjet in this population. The purpose of this study was to evaluate the outcomes of the arthroscopic Bankart and arthroscopic Latarjet procedures in the management of anterior shoulder instability in adolescents.

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Does plate fixation improve the Latarjet procedure for anterior glenohumeral instability?

Rev Esp Cir Ortop Traumatol

November 2024

Departamento de Cirugía Ortopédica y Traumatología, Hospital del Mar, Parc de Salut Mar, Barcelona, España.

Unlabelled: The Latarjet technique is a procedure used to treat anterior glenohumeral instability with glenoid bone loss. Various fixation systems for the coracoid have been described in the literature. This study aims to compare the results in quality of life and complications between patients treated with plate and screws (GP) and those with screws only (GSP) for coracoid fixation.

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A humeral avulsion of the glenohumeral ligament (HAGL lesion) is a relatively rare pathology seen in patients with traumatic anterior shoulder instability. A HAGL lesion combined with a Bankart lesion is called a floating inferior glenohumeral ligament (IGHL) and is rare. We report a case of floating IGHL that could not be diagnosed before surgery.

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Although the most common surgical treatment for traumatic anterior shoulder instability is arthroscopic Bankart repair (ABR), which has shown good postoperative results, a potential risk of postoperative external rotation deficit exists. For overhead-throwing athletes, recovery of postoperative range of motion during abduction and external rotation is essential to return to preinjury performance levels. We consider that the key to returning to play after ABR on the dominant side in overhead-throwing athletes is to simultaneously gain anterior stability and mobility of the shoulder.

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Article Synopsis
  • Glenohumeral instability involves complex issues related to bony, labral, and capsular tissues, with varying rates of capsular injuries, highlighted by unclear clinical significance.
  • A systematic review of studies from 2008 to 2023 found that the inferior glenohumeral ligament injuries were the most common (34.1%), while humeral avulsions were the least common (6.2%).
  • The conclusion indicates that while capsular injuries are prevalent in MRI scans of patients with shoulder instability, there's a need for more research to better understand their clinical impacts and rehabilitation methods.
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  • Shoulder dislocations can be complicated by soft tissue or bone obstructions, which may lead to failed reduction attempts, as illustrated by a case of a 35-year-old man with a fracture-dislocation after a fall.
  • Despite seemingly successful reduction on initial imaging, a CT scan revealed underlying issues like muscle entrapment and avulsion fractures, prompting surgical intervention.
  • Post-surgery, the patient had a good recovery with significant function, emphasizing the need for thorough imaging and patient monitoring after shoulder dislocations.
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  • The management of glenohumeral instability in adolescents is unclear, with no established guidelines, leading to challenges for healthcare providers.
  • A survey was conducted among pediatric orthopedic surgeons to create consensus-based guidelines, which included demographic information and specific case scenarios.
  • Findings indicated that nonoperative management is preferred for younger boys and girls after a first-time anterior shoulder dislocation, with certain factors influencing treatment, while stabilization is often recommended for recurrent cases regardless of growth plate status.
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Background: Augmentation of an arthroscopic Bankart repair with the remplissage (ABR) procedure has shown to confer a decrease in recurrence rates, yet, at the expense of potentially compromising shoulder motion.

Purpose/hypothesis: The purpose was to examine clinical studies that described a post-operative rehabilitation protocol after an arthroscopic Bankart repair and remplissage procedure. It was hypothesized that a review of the literature would find variability among the studies and that, among comparative studies, there would be a limited distinction from protocols for isolated Bankart repairs.

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Introduction: The combination of anterior large glenoid rim fractures (GRF) and proximal humerus fractures (PHF) is rare, with limited data available on specific treatments for these glenohumeral combination fractures (GCF). This study aimed to evaluate the treatment approaches for GCF, analyze patient outcomes, and outline surgical management strategies for different fracture types.

Materials And Methods: This retrospective study included patients with GCF, excluding those with fossa glenoidalis fractures, isolated greater tuberosity fractures, or small glenoid rim fractures (< 5 mm).

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Article Synopsis
  • The study analyzed shoulder movement (kinematics) in patients with anterior shoulder instability (ASI) and glenoid bone loss during an apprehension-relocation test, using the radiostereometric analysis (RSA) method.
  • It involved 20 patients, comparing their ASI shoulders to their healthy shoulders by imaging and tracking the humeral head's position relative to the glenoid during specific movements.
  • Results showed the ASI shoulders had more inferior and anterior positions of the humeral head and a greater displacement between apprehension and relocation tests, indicating increased joint laxity in these patients compared to their healthy counterparts.
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  • This study explores the impact of prior dislocations on the recurrence of shoulder instability after arthroscopic stabilization, particularly in patients without significant glenoid bone loss.
  • A systematic review and meta-analysis of 35 studies involving 7,995 shoulders showed low rates of post-surgery instability (9.8% in first-time dislocators and 9.1% in recurrent dislocators).
  • The results indicate that modern arthroscopic techniques provide a low risk of recurrence for anterior shoulder dislocations, with no major difference in outcomes between first-time and recurrent dislocators.
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This study aimed to compare capsular volume in patients with shoulder instability to that in control subjects without instability using magnetic resonance (MR) arthrography. The objective was to develop a reliable screening method with which to assess shoulder volume. In 21 patients with atraumatic shoulder instability and 21 controls, thin-slice 3D volumetric MR arthrography sequences were obtained.

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Purpose: Recurrent anterior glenohumeral instability (RASI) is commonly treated with arthroscopic techniques, though their effectiveness in providing stability may diminish in cases of critical glenoid bone loss. This study aimed to compare the stability outcomes and range of motion (ROM) associated with an arthroscopic subscapular sling procedure (SSP), first introduced in 2015.

Methods: Sixteen fresh-frozen human cadaveric shoulder specimens were biomechanically evaluated in four conditions: native, injured, post-SSP and post-LP.

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Article Synopsis
  • Anterior shoulder dislocations are prevalent among young, active males, and open Bankart repair is recommended for recurrent instability due to its lower recurrence rates and quicker recovery compared to arthroscopic methods.
  • The open surgery involves a specific technique where the subscapularis tendon is "spared" by splitting it to minimize damage during repair, while a capsulotomy allows access to the joint for proper labrum repair using suture anchors.
  • Indications for this surgical approach include failed previous arthroscopic repair, multiple dislocations, and situations involving subcritical bone loss, especially in individuals engaged in high-risk sports.
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The open Latarjet procedure does not affect scapulohumeral rhythm three months postoperatively.

Clin Biomech (Bristol)

December 2024

Centre Orthopédique Santy, Fifa Medical Center of Excellence, Lyon, France; Ramsay Santé, Hôpital Privé Jean Mermoz, Lyon, France.

Article Synopsis
  • This study investigated the impact of the Latarjet procedure on scapulohumeral rhythm in patients post-surgery compared to healthy individuals.
  • Researchers measured joint movements before and three months after surgery using an electromagnetic device for accurate tracking.
  • Results showed no significant differences in scapulohumeral rhythm between the operated and non-operated shoulders, indicating that the Latarjet procedure effectively maintains shoulder coordination after stabilization.
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Background: Arthroscopic Latarjet using suture-button fixation has shown good clinical results and low recurrent instability in patients with significant glenoid bone loss. However, the presence of an associated Hill-Sachs lesion (HSL) is a risk factor for recurrent instability after isolated Latarjet. The aim of the study was to report clinical and radiologic results following all-arthroscopic Latarjet combined with Hill-Sachs remplissage (HSR).

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Surgical treatment of anterior glenohumeral instability: a historical review.

J Shoulder Elbow Surg

December 2024

Houston Methodist Orthopedic & Sports Medicine, Houston, TX, USA. Electronic address:

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