keyword
https://read.qxmd.com/read/38183762/quantification-of-the-passive-behavior-of-the-glenohumeral-joint-a-biomechanical-study
#21
JOURNAL ARTICLE
Kyle Snethen, Jonathan P Braman, Vani Sabesan, Marc Bandi, Jeff Bischoff
Shoulder stabilization and arthroplasty procedures aim to restore the complex motion innate to the glenohumeral joint relying on proper tensioning of the surrounding soft-tissues at the time of surgery. Joint instability remains a leading cause for revisions of these procedures necessitating a deeper understanding of the passive constraint of the intact glenohumeral joint. The current literature lacks comprehensive analysis of the passive glenohumeral joint in all degrees-of-freedom (DOF). The objective of the present study is to better understand this complex joint by quantifying the passive laxity of the glenohumeral joint in multiple DOFs over a range of motion...
December 20, 2023: Journal of Biomechanics
https://read.qxmd.com/read/38181125/rotator-cuff-tears-to-shoulder-instability-the-relationship-between-acromial-morphology-and-shoulder-pathology
#22
JOURNAL ARTICLE
Edward J Testa, Luca Katz, Helen Zhang, Kenny Chang, Michael J Kutschke, Myles Dworkin, Brett D Owens
» The acromion is a well-studied region of the scapula that has demonstrated substantial relationships to various shoulder pathologies.» Abnormal acromial morphology is associated with rotator cuff pathology, and our understanding of this risk factor inspired acromioplasty as an adjunctive treatment for rotator cuff tears.» The acromion is linked closely to shoulder kinematics and biomechanics, as it serves as the origin for the deltoid muscle.» In degenerative shoulder disease, eccentric glenohumeral osteoarthritis has been associated with a higher, flatter acromial roof...
January 1, 2024: JBJS Reviews
https://read.qxmd.com/read/38159105/the-moment-arms-and-lines-of-action-of-subscapularis-after-the-latarjet-procedure
#23
JOURNAL ARTICLE
Aaron Fox, Lukas Ernstbrunner, Janina Henze, Richard S Page, David C Ackland
The Latarjet procedure is an established surgical treatment for recurrent glenohumeral joint instability with glenoid bone loss. Intraoperatively, the conjoint tendon is routed through a split in subscapularis to the coracoid bone graft, which is fixed to and augments the anteroinferior glenoid. The objective of this in vitro study was to quantify the influence of glenohumeral joint position and conjoint tendon force on the lines of action and moment arms of subscapularis muscle sub-regions after Latarjet surgery...
December 30, 2023: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://read.qxmd.com/read/38147875/anterior-capsular-reconstruction-with-acellular-dermal-allograft-for-subscapularis-deficiency-a-report-of-two-cases
#24
JOURNAL ARTICLE
Raffy Mirzayan, Shane Korber
Anterior glenohumeral instability with an irreparable subscapularis tear is a challenging problem for the orthopedic shoulder surgeon. Current techniques, including tendon transfers, yield inconsistent results with high rates of recurrent instability. Acellular dermal allografting has been used in young patients with massive superior rotator cuff tears with early success, but acellular dermal allografting is comparatively unstudied in anterior deficiency. We present two cases of anterior capsular reconstruction with an acellular dermal allograft in patients ages 66 and 58 years with irreparable subscapularis tendon tears...
December 19, 2023: Clinics in shoulder and elbow
https://read.qxmd.com/read/38145224/comparison-of-glenohumeral-bone-morphology-between-patients-with-versus-without-anterior-shoulder-instability
#25
JOURNAL ARTICLE
Zhixin Niu, Xianyue Shen, Menglong Li, Mingrui Fan, Jianlin Zuo, Tong Liu
BACKGROUND: The stability of the glenohumeral joint is associated with anatomic characteristics including bony structures and soft tissues. PURPOSE: To compare the differences in specific bony glenohumeral geometries between shoulders with anterior shoulder instability (ASI), unaffected contralateral shoulders, and healthy control shoulders. STUDY DESIGN: Cross-sectional study; Level of evidence, 3. METHODS: Shoulder computed tomography (CT) scans of 36 patients with ASI and 36 matched healthy controls were retrieved and 3-dimensionally reconstructed...
December 2023: Orthopaedic Journal of Sports Medicine
https://read.qxmd.com/read/38145219/biomechanical-evaluation-of-the-2-different-levels-of-coracoid-graft-positions-in-the-latarjet-procedure-for-anterior-shoulder-instability
#26
JOURNAL ARTICLE
Phob Ganokroj, Maria Dey Hazra, Rony-Orijit Dey Hazra, Alex W Brady, Justin R Brown, Marco-Christopher Rupp, Alexander R Garcia, Ryan J Whalen, Peter J Millett, Matthew T Provencher
BACKGROUND: In the Latarjet procedure, the ideal placement of the coracoid graft in the medial-lateral position is flush with the anterior glenoid rim. However, the ideal position of the graft in the superior-inferior position (sagittal plane) for restoring glenohumeral joint stability is still controversial. PURPOSE: To compare coracoid graft clockface positions between the traditional 3 to 5 o'clock and a more inferior (for the right shoulder) 4 to 6 o'clock with regard to glenohumeral joint stability in the Latarjet procedure...
December 2023: Orthopaedic Journal of Sports Medicine
https://read.qxmd.com/read/38127679/hemodynamic-instability-after-axillary-artery-rupture-following-inferior-glenohumeral-joint-dislocation-a-case-report
#27
JOURNAL ARTICLE
Alexander Bech Rasmussen, Rikke Thorninger, Daniel Wæver
BACKGROUND Inferior shoulder dislocation is a rare type of glenohumeral joint dislocation. A serious complication to shoulder dislocation is axillary artery injury, which should be taken into consideration early to avoid potentially permanent damage. Literature on artery injury following inferior shoulder dislocation is sparse. CASE REPORT We report the case of a 71-year-old man with a traumatic inferior shoulder dislocation due to a fall. The patient had a medical history of stroke, and thus had a daily intake of 10 mg Warfarin...
December 21, 2023: American Journal of Case Reports
https://read.qxmd.com/read/38090927/the-scapula-the-greater-masquerader-of-%C3%A2-shoulder-pathologies
#28
REVIEW
Eric R Wagner, Zaamin B Hussain, Anthony L Karzon, Jon J P Warner, Bassem T Elhassan, Joaquin Sanchez-Sotelo
A comprehensive review of scapular pathologies and their effect on shoulder function is necessary to determine the best treatment options. The coordinated motion between the scapulothoracic and glenohumeral joints is essential for shoulder motion and depends on the balanced activity of the periscapular muscles. Disruption in these muscles can cause abnormal scapular motion and compensatory glenohumeral movements, leading to misdiagnosis or delayed diagnosis. Scapular pathologies can arise from muscle overactivity or underactivity/paralysis, resulting in a range of scapulothoracic abnormal motion (STAM)...
2024: Instructional Course Lectures
https://read.qxmd.com/read/38062720/arthroscopic-remplissage-history-indications-and-clinical-outcomes
#29
JOURNAL ARTICLE
Mohamad Y Fares, Mohammad Daher, Peter Boufadel, Emil R Haikal, Jonathan Koa, Jaspal Singh, Joseph A Abboud
Several surgical procedures have been proposed to address anterior glenohumeral instability, which is one of the most common complaints in the general population. The remplissage, first described in early 2000s, is a procedure performed simultaneously with the arthroscopic Bankart repair to correct large, engaging Hill-Sachs lesions (HSLs). This procedure stabilizes the joint by tenodesing the infraspinatus tendon into the HSL to fill and disengage the defect. This procedure gained popularity because it has relatively low risk and is able to improve shoulder stability while being less invasive than other bone-blocking procedures...
December 4, 2023: Clinics in shoulder and elbow
https://read.qxmd.com/read/38033021/does-enforcing-glenohumeral-joint-stability-matter-a-new-rapid-muscle-redundancy-solver-highlights-the-importance-of-non-superficial-shoulder-muscles
#30
JOURNAL ARTICLE
Italo Belli, Sagar Joshi, J Micah Prendergast, Irene Beck, Cosimo Della Santina, Luka Peternel, Ajay Seth
The complexity of the human shoulder girdle enables the large mobility of the upper extremity, but also introduces instability of the glenohumeral (GH) joint. Shoulder movements are generated by coordinating large superficial and deeper stabilizing muscles spanning numerous degrees-of-freedom. How shoulder muscles are coordinated to stabilize the movement of the GH joint remains widely unknown. Musculoskeletal simulations are powerful tools to gain insights into the actions of individual muscles and particularly of those that are difficult to measure...
2023: PloS One
https://read.qxmd.com/read/38030446/bone-formation-of-the-coracoid-bone-graft-after-the-bristow-procedure-assessed-using-three-dimensional-computed-tomography
#31
JOURNAL ARTICLE
So Minokawa, Yozo Shibata, Terufumi Shibata, Hidetomo Kosaka, Teruaki Izaki
BACKGROUND: The Bristow procedure has been shown to be a reliable method to prevent recurrent anterior shoulder instability by compensating for glenoid bone loss and producing the sling effect. The degree of postoperative morphological change in the coracoid bone graft is speculated to influence glenohumeral joint stability; however, the details of these changes after the Bristow procedure remain unknown. This study was performed to quantify the postoperative change in the coracoid bone graft volume as assessed by three-dimensional computed tomography (3D-CT)...
November 28, 2023: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://read.qxmd.com/read/37981392/editorial-commentary-immediate-surgical-stabilization-following-a-first-time-traumatic-anterior-shoulder-dislocation-is-still-the-best-evidence-based-approach
#32
EDITORIAL
Albert Lin
Traumatic anterior shoulder dislocations are unfortunately common. The initial dislocation is enough to cause permanent anatomic and biomechanical alterations to the glenohumeral joint, which increases the likelihood of further events. When a patient crosses into the multiple dislocator category, further soft-tissue and bony injury occurs. This is almost certainly the reason that the number of preoperative dislocations significantly diminishes the success of an arthroscopic stabilization and increases the need for a more aggressive approach that may carry greater risks of complications...
December 2023: Arthroscopy
https://read.qxmd.com/read/37981199/latarjet-procedure-for-shoulder-instability-implications-in-the-innervation-of-the-subscapularis-muscle
#33
JOURNAL ARTICLE
I Coifman, M Valencia, A Ariza, F Clascá, E Calvo
Introduction Our aim was to describe whether Latarjet's technique affects subscapularis muscle innervation. Materials and methods We studied 12 embalmed shoulders. Subscapularis muscle innervation pattern was registered. Dimensions of the subscapularis at the glenohumeral joint line and the nerves entry point were measured. Horizontal distances from the nerves to the glenohumeral joint line as well as vertical ones to the split were measured before and after Latarjet procedure. A safe zone for the split was designed to avoid damage to subscapularis innervation...
November 17, 2023: Revista Española de Cirugía Ortopédica y Traumatología
https://read.qxmd.com/read/37969497/kinematic-analysis-of-damaged-capsulolabral-structure-in-patients-with-anterior-shoulder-instability-using-cine-magnetic-resonance-imaging
#34
JOURNAL ARTICLE
Tomonori Kenmoku, Genyo Miyajima, Ryo Tazawa, Daisuke Ishii, Kosuke Inoue, Mitsuyoshi Matsumoto, Masashi Takaso
BACKGROUND: We assessed damaged anterior capsulolabral motion during axial shoulder rotation in patients with anterior shoulder instability. METHODS: Twenty-nine shoulders of 28 patients with anterior shoulder instability who underwent cine-magnetic resonance imaging during axial rotation of the adducted arm were included. The motion was captured after an intra-articular injection of saline solution (10-20 mL). During imaging, the shoulder was rotated passively from maximum internal rotation to maximum external rotation in the first 10 s and then back to maximum internal rotation in the subsequent 10 s...
November 2023: JSES international
https://read.qxmd.com/read/37937538/osteochondral-allograft-transplantation-in-the-shoulder-a-systematic-review-of-indications-and-outcomes
#35
JOURNAL ARTICLE
Brian Prigmore, Suzanne Tabbaa, Dennis C Crawford
OBJECTIVE: To collate current literature pertaining to the published reports of indications for, and outcomes of, osteochondral allograft (OCA) transplantations in the shoulder so as to guide surgeons in the management of various etiologies of osteochondral lesions in this joint. DESIGN: A systematic review of the current literature was performed in February 2022 in the PubMed, Cochrane, and EMBASE databases using specific search terms and predetermined inclusion/exclusion criteria...
November 8, 2023: Cartilage
https://read.qxmd.com/read/37926882/arthroscopic-stabilisation-in-anterior-shoulder-instability-an-analysis-of-mid-term-outcome
#36
JOURNAL ARTICLE
Muhammad Usama, Muhammad Umer Faheem, Haseeb Hussain, Zain Muhammad, Ammar Dogar, Shahzad Javed
OBJECTIVE: To assess the clinical outcome of arthroscopic stabilisation for recurrent anterior glenohumeral joint dislocations. STUDY DESIGN: Case series. Place and Duration of the Study: Ghurki Trust Teaching Hospital, Lahore, from May 2018 to December 2022. METHODOLOGY: Fifty-two patients who underwent arthroscopic repair of Bankart lesion were studied. Those who had concomitant fractures, neurological injury or underwent any surgery on the same shoulder were excluded...
November 2023: Journal of the College of Physicians and Surgeons—Pakistan: JCPSP
https://read.qxmd.com/read/37876869/assessment-of-the-level-of-satisfaction-of-patients-submitted-to-latarjet-surgery-under-outfit-system-compared-to-hospital-system
#37
JOURNAL ARTICLE
Leandro Masini Ribeiro, Fillipe Agra DE Oliveira Cosme, Paulo Henrique Schmidt Lara, Alberto DE Castro Pochini, Benno Ejnisman, Paulo Santoro Belangero
UNLABELLED: Anterior shoulder instability causes functional changes that affect patients' quality of life. The Latarjet procedure is one of the most frequently performed surgeries for cases of recurrent shoulder instability. OBJECTIVE: To assess the level of satisfaction of patients who underwent the Latarjet procedure in outpatient settings (day hospital) compared with inpatient settings. METHODS: A questionnaire was administered to both groups and a descriptive analysis of the results was performed...
2023: Acta Ortopedica Brasileira
https://read.qxmd.com/read/37871791/biomechanical-comparison-of-open-bankart-repair-vs-conjoint-tendon-transfer-in-a-10-anterior-glenoid-bone-loss-shoulder-instability-model
#38
JOURNAL ARTICLE
Rebecca Griffith, James E Tibone, Michelle H McGarry, Gregory J Adamson, Thay Q Lee
BACKGROUND: The treatment of shoulder instability in patients with subcritical glenoid bone loss poses a difficult problem for surgeons as new evidence supports a higher failure rate when standard arthroscopic Bankart repair is utilized. The purpose of this study was to compare a conjoint tendon transfer (Soft Tissue Bristow) to an open Bankart repair in a cadaveric instability model of 10% glenoid bone loss. METHODS: Eight cadaveric shoulders were tested using a custom testing system that allows for six degree-of-freedom positioning of the glenohumeral joint...
October 21, 2023: Journal of Shoulder and Elbow Surgery
https://read.qxmd.com/read/37868139/arthroscopic-coracoid-bone-block-for-posterior-glenohumeral-instability-description-of-surgical-technique-and-a-case-report
#39
Wagner Castropil, Juliana Ribeiro Mauad, Fernando Henrique Barcelos Amorim
This case report describes the surgical technique of posterior arthroscopic bone block using the coracoid graft to treat recurrent posterior dislocations and describes preliminary results. Performance of coracoid transfer as a graft for posterior arthroscopic bone block in one patient (two shoulders) with recurrent posterior glenohumeral instability refractory to clinical treatment for six months, excluding volition dislocation. The patient was followed up weekly for the first three weeks when the stitches were removed...
2023: Archives of Bone and Joint Surgery
https://read.qxmd.com/read/37867634/primary-total-shoulder-arthroplasty-is-superior-to-hemiarthroplasty-for-the-treatment-of-glenohumeral-arthritis-analysis-of-5-year-outcomes-in-a-large-surgical-database
#40
JOURNAL ARTICLE
Jason Long, Kunal Varshenya, Kier Blevins, Julia Ralph, Anna Bryniarski, Caroline Park, Lucy Meyer, Brian Lau
BACKGROUND: Total shoulder arthroplasty (TSA) is the preferred treatment for glenohumeral arthritis refractory to nonoperative measures. However, some surgeons have argued for a role for hemiarthroplasty (HA) in the setting of a smooth glenoid that articulates appropriately with the humeral head. The purpose of this study is to evaluate long-term revision rates and short-term postoperative complications in patients undergoing either HA or TSA for glenohumeral arthritis. METHODS: A retrospective review of patients who underwent HA and TSA was conducted using a commercially available national database...
2023: Journal of shoulder and elbow arthroplasty
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