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Glenoid bone loss

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https://www.readbyqxmd.com/read/28028575/3d-mr-vs-3d-ct-of-the-shoulder-in-patients-with-glenohumeral-instability
#1
Laurence Stillwater, James Koenig, Bruce Maycher, Michael Davidson
OBJECTIVE: To determine whether 3D-MR osseous reformats of the shoulder are equivalent to 3D-CT osseous reformats in patients with glenohumeral instability. MATERIALS AND METHODS: Patients with glenohumeral instability, who were to be imaged with both CT and MRI, were prospectively selected. CT and MR were performed within 24 h of one another on 12 shoulders. Each MR study included an axial 3D isotropic VIBE sequence. The image data from the isotropic VIBE sequence were post-processed using subtraction and 3D software...
December 27, 2016: Skeletal Radiology
https://www.readbyqxmd.com/read/28017469/distal-tibia-allograft-glenoid-reconstruction-in-recurrent-anterior-shoulder-instability-clinical-and-radiographic-outcomes
#2
Matthew T Provencher, Rachel M Frank, Petar Golijanin, Daniel Gross, Brian J Cole, Nikhil N Verma, Anthony A Romeo
PURPOSE: To assess the clinical and radiographic outcomes of patients with recurrent anterior shoulder instability treated with fresh distal tibia allograft (DTA) glenoid reconstruction. METHODS: Consecutive patients with a minimum 15% anterior glenoid bone loss associated with recurrent anterior instability who underwent stabilization with DTA glenoid reconstruction were retrospectively reviewed. Patients were evaluated with the American Shoulder and Elbow Society score, Western Ontario shoulder instability index, and single numerical assessment evaluation score at a minimum 2 years after surgery...
December 22, 2016: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28006107/classification-and-analysis-of-attritional-glenoid-bone-loss-in-recurrent-anterior-shoulder-instability
#3
John W McNeil, Brendin R Beaulieu-Jones, Andrew S Bernhardson, Lance E LeClere, Christopher B Dewing, Joseph R Lynch, Petar Golijanin, George Sanchez, Matthew T Provencher
BACKGROUND: Recognition and proper treatment of glenoid bone loss (GBL) are important for successful management of anterior shoulder instability. Although GBL has been described as the amount of bony loss from the front of the glenoid, there is also a fragment of bone that is usually displaced and often undergoes attrition. Thus, due to attritional bone loss (ABL) of the fragment, insufficient bone is left to fully reconstruct the glenoid. PURPOSE: To (1) evaluate ABL of the glenoid fragment in recurrent anterior shoulder instability and (2) correlate ABL with clinical history, fragment size, and radiographic findings...
December 1, 2016: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28004306/arthroscopic-bankart-repair-associated-with-subscapularis-augmentation-asa-versus-open-latarjet-to-treat-recurrent-anterior-shoulder-instability-with-moderate-glenoid-bone-loss-clinical-comparison-of-two-series
#4
R Russo, G Della Rotonda, F Cautiero, M Ciccarelli, M Maiotti, C Massoni, F Di Pietto, M Zappia
PURPOSE: The treatment of chronic anterior shoulder instability with glenoid bone loss is still debated. The purpose of this study is to compare short-term results of two techniques treating chronic shoulder instability with moderate glenoid bone loss: bone block according to open Latarjet-Patte procedure and arthroscopic Bankart repair in association with subscapularis augmentation. METHODS: Ninety-one patients with moderate anterior glenoid bone loss underwent from 2011 to 2015...
December 21, 2016: Musculoskeletal Surgery
https://www.readbyqxmd.com/read/27989718/interobserver-and-intraobserver-variability-of-glenoid-track-measurements
#5
Adrian K Schneider, Gregory A Hoy, Eugene T Ek, Andrew H Rotstein, Julie Tate, David McD Taylor, Matthew C Evans
BACKGROUND: A method of assessing combined glenoid and humeral bone loss in traumatic shoulder instability with an associated treatment protocol was recently published. The aim of this study was to investigate its reliability and reproducibility. METHODS: Seventy-one patients with unilateral anteroinferior shoulder instability underwent computed tomography scans, from which 3-dimensional images were derived. En face views of both glenoid fossae and with 3 views of the humeral head were provided to 4 assessors to determine interobserver reliability...
December 15, 2016: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/27923707/three-dimensional-magnetic-resonance-imaging-quantification-of-glenoid-bone-loss-is-equivalent-to-3-dimensional-computed-tomography-quantification-cadaveric-study
#6
Adam B Yanke, Jason J Shin, Ian Pearson, Bernard R Bach, Anthony A Romeo, Brian J Cole, Nikhil N Verma
PURPOSE: To assess the ability of 3-dimensional (3D) magnetic resonance imaging (MRI, 1.5 and 3 tesla [T]) to quantify glenoid bone loss in a cadaveric model compared with the current gold standard, 3D computed tomography (CT). METHODS: Six cadaveric shoulders were used to create a bone loss model, leaving the surrounding soft tissues intact. The anteroposterior (AP) dimension of the glenoid was measured at the glenoid equator and after soft tissue layer closure the specimen underwent scanning (CT, 1...
December 3, 2016: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/27900710/customized-tantalum-augmented-reverse-shoulder-arthroplasty-for-glenoid-bone-defect-and-excessive-medialization-description-of-the-technique
#7
Nicola Ivaldo, Tony Mangano, Giovanni Caione, Mario Rossoni, Angelo Ligas
BACKGROUND: Glenoid bone defect and excessive medialization could represent challenging issues during reverse shoulder arthroplasty, especially in the setting of revision surgery. Although a solution is offered by the Boileau's BIO-RSA technique in primary cases, only autologous iliac crest bone graft and homologous graft from bone banks are available for revision surgeries, with known disadvantages and risk of graft resorption and implant failure. MATERIALS AND METHODS: We describe in this work a new technique based on a customized porous tantalum device to be used in salvage situations, aimed at lateralization of the glenoid component of a reverse shoulder arthroplasty...
December 2016: Musculoskeletal Surgery
https://www.readbyqxmd.com/read/27900256/arthroscopic-remplissage-for-moderate-size-hill-sachs-lesion
#8
Thomas C Alexander, Clint Beicker, John M Tokish
Humeral bone loss has been shown to be a risk factor for failure after arthroscopic treatment of instability. We present the arthroscopic remplissage technique originally described by Koo and Burkhart et al. with a modification in the percutaneous anchor placement and suture tying that is reproducible and effective. We percutaneously place 2 suture anchors, which require no additional suture passing across the tissue, to create a double pulley technique, filling the defect with posterior capsule and rotator cuff...
October 2016: Arthroscopy Techniques
https://www.readbyqxmd.com/read/27887871/radiographic-results-of-augmented-all-polyethylene-glenoids-in-the-presence-of-posterior-glenoid-bone-loss-during-total-shoulder-arthroplasty
#9
Scott P Stephens, Edwin E Spencer, Michael A Wirth
BACKGROUND: Chronic osteoarthritis can result in glenohumeral subluxation and loss of posterior glenoid bone. This can alter normal glenohumeral biomechanics and affect the stress placed on the glenoid implant after total shoulder arthroplasty. This study evaluated the clinical and radiographic results of an augmented all-polyethylene glenoid for the treatment of glenoid osteoarthritis in the presence of posterior glenoid bone loss and determined whether any failures or complications occurred with short-term follow-up...
November 22, 2016: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/27876488/arthroscopic-subscapularis-augmentation-of-bankart-repair-in-chronic-anterior-shoulder-instability-with-bone-loss-less-than-25-and-capsular-deficiency-clinical-multicenter-study
#10
Marco Maiotti, Carlo Massoni, Raffaele Russo, Steffen Schroter, Antonio Zanini, Diana Bianchedi
PURPOSE: To assess the short-term outcomes of the arthroscopic subscapularis augmentation (ASA) technique, consisting of a tenodesis of the upper third of the subscapularis tendon and a Bankart repair, and its effect on shoulder external rotation. METHODS: Patients selected for this study were involved in contact sports, with a history of traumatic recurrent shoulder dislocations and a minimum of 2-year follow-up. Inclusion criteria were patients with glenoid bone loss (GBL) ranging from 5% to 25%, anterior capsular deficiency, and Hill-Sachs lesion who underwent ASA technique...
November 19, 2016: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/27852909/clinical-validation-of-the-glenoid-track-concept-in-anterior-glenohumeral-instability
#11
James S Shaha, Jay B Cook, Douglas J Rowles, Craig R Bottoni, Steven H Shaha, John M Tokish
BACKGROUND: Glenoid and humeral bone loss are well-described risk factors for failure of arthroscopic shoulder stabilization. Recently, consideration of the interactions of these types of bone loss (bipolar bone loss) has been used to determine if a lesion is "on-track" or "off-track." The purpose of this study was to study the relationship of the glenoid track to the outcomes of arthroscopic Bankart reconstructions. METHODS: Over a 2-year period, 57 shoulders that were treated with an isolated, primary arthroscopic Bankart reconstruction performed at a single facility were included in this study...
November 16, 2016: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/27815009/comparison-of-intra-articular-findings-and-clinical-features-between-patients-with-symptomatic-anterior-instability-after-recurrent-shoulder-subluxation-and-dislocation
#12
Sang-Jin Shin, Young-Won Ko, Yoon Sang Jeon, Juyeob Lee, Rag Gyu Kim, Hyungki Baek
PURPOSE: The purpose of this study was to compare the prevalence of concomitant intra-articular pathologies and clinical manifestations after arthroscopic stabilization between patients with symptomatic anterior instabilities following recurrent shoulder subluxations and dislocations. METHODS: Among patients who underwent arthroscopic stabilization, 28 patients who experienced shoulder subluxations (subluxation group, 26.7 ± 1.8 years) and 84 who had shoulder dislocations (dislocation group, 25...
November 1, 2016: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/27807112/reverse-total-shoulder-arthroplasty-without-bone-grafting-for-severe-glenoid-bone-loss-in-patients-with-osteoarthritis-and-intact-rotator-cuff
#13
Edward G McFarland, Gazi Huri, Yoon Suk Hyun, Steve A Petersen, Uma Srikumaran
BACKGROUND: Treating shoulders with osteoarthritis, an intact rotator cuff, and substantial glenoid bone loss is challenging. One option is reaming the glenoid flat and inserting a reverse prosthesis. This study reports the subjective, objective, and radiographic results of reverse total shoulder arthroplasty (RTSA) in this population. METHODS: We retrospectively reviewed 42 consecutive patients (23 women; mean age, 71 years [range, 53 to 89 years]) with primary glenohumeral osteoarthritis, intact rotator cuffs, and Walch type-A2 (n = 19), B2 (n = 5), or C glenoids (n = 18) who had undergone a total of 42 RTSAs with glenoid reaming without bone-grafting between 2008 and 2013 (mean follow-up, 36 months [range, 24 to 66 months])...
November 2, 2016: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/27735979/eden-hybinette-and-pectoralis-major-transfer-for-recurrent-shoulder-instability-due-to-failed-latarjet-and-chronic-subscapularis-rupture
#14
Xinning Li, Antonio Cusano, Josef Eichinger
Shoulder dislocations are a common injury, with anterior shoulder dislocation among male patients being the most common presentation. A patient with recurrent shoulder instability, anterior-superior escape, and chronic subscapularis tendon rupture following multiple shoulder stabilization surgeries presents the surgeon with a complex and challenging case. This report describes a 40-year-old man with an extensive left shoulder history that included a failed Latarjet procedure, an irreparable, chronic subscapularis tear with grade 4 Goutallier fatty infiltration, and associated anterior-superior escape...
October 13, 2016: Orthopedics
https://www.readbyqxmd.com/read/27735978/glenoid-reconstruction-with-distal-tibia-allograft-for-recurrent-anterior-shoulder-instability
#15
Rachel M Frank, Anthony A Romeo, Matthew T Provencher
Anterior glenoid bone loss is present in nearly all cases of recurrent anterior glenohumeral instability. Treating glenoid bone loss in the setting of recurrent instability is challenging, and often, soft tissue stabilization procedures in isolation are inadequate. The nonanatomic, incongruous joint resulting from most bony augmentation procedures has motivated investigators to find an alternative solution. Recently, the use of fresh distal tibia allograft has been reported as an anatomic, osteoarticular reconstructive option for restoring the glenoid arc and maintaining glenohumeral congruency...
October 13, 2016: Orthopedics
https://www.readbyqxmd.com/read/27709063/assessment-and-evaluation-of-glenoid-bone-loss
#16
Jason T Hamamoto, Timothy Leroux, Jorge Chahla, Sanjeev Bhatia, John D Higgins, Anthony A Romeo, Adam B Yanke, Nikhil N Verma
The preoperative assessment of anterior glenoid bone loss is a critical step in surgical planning for patients with recurrent anterior glenohumeral instability. The structural integrity of the glenoid has been identified as one of the most important factors influencing the success of operative repair. The currently accepted gold standard for glenoid structural assessment among most orthopaedic surgeons is the use of 3-dimensional reconstructed computed tomography images with the humeral head digitally subtracted, yielding an en face sagittal oblique view of the glenoid...
August 2016: Arthroscopy Techniques
https://www.readbyqxmd.com/read/27709057/arthroscopic-iliac-crest-bone-grafting-to-the-anterior-glenoid
#17
Chad M Fortun, Ivan Wong, Joseph P Burns
Failed arthroscopic soft-tissue stabilization and anterior glenoid bone loss have been shown to have high failure rates after standard arthroscopic stabilization techniques. For patients with recurrent glenohumeral instability, the Bristow-Latarjet procedure is currently the standard of care. It is predominantly performed through an open deltopectoral approach but has recently been described arthroscopically. Although providing excellent clinical outcomes, the Bristow-Latarjet procedure violates the subscapularis muscle, has a steep learning curve with a high complication rate, and permanently changes the anterior shoulder anatomy, making any future revision surgery more challenging...
August 2016: Arthroscopy Techniques
https://www.readbyqxmd.com/read/27697889/posterior-shoulder-instability-current-surgical-management
#18
Ivan J Antosh, John M Tokish, Brett D Owens
CONTEXT: Posterior shoulder instability has become more frequently recognized and treated as a unique subset of shoulder instability, especially in the military. Posterior shoulder pathology may be more difficult to accurately diagnose than its anterior counterpart, and commonly, patients present with complaints of pain rather than instability. "Posterior instability" may encompass both dislocation and subluxation, and the most common presentation is recurrent posterior subluxation. Arthroscopic and open treatment techniques have improved as understanding of posterior shoulder instability has evolved...
October 3, 2016: Sports Health
https://www.readbyqxmd.com/read/27671285/estimation-of-anterior-glenoid-bone-loss-area-using-the-ratio-of-bone-defect-length-to-the-distance-from-posterior-glenoid-rim-to-the-centre-of-the-glenoid
#19
Sang-Jin Shin, Bong Jae Jun, Young Won Koh, Michelle H McGarry, Thay Q Lee
PURPOSE: Estimation of anterior glenoid bone loss is important for surgical decision-making. The purpose of this study was to describe a method for estimating anterior glenoid bone loss. METHODS: Thirty-nine cadaveric glenoids were digitized to obtain glenoid geometry. Glenoid bare spot centre, arthroscopic centre, and centre of the inferior glenoid circle relative to the geometric centre were measured. To simulate anterior glenoid bone loss, imaginary sequential osteotomies were created 0°, 22...
September 26, 2016: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/27660655/glenoid-bone-loss-in-primary-and-revision-shoulder-arthroplasty
#20
Amar Malhas, Abbas Rashid, Dave Copas, Steve Bale, Ian Trail
The management of glenoid bone loss is a major challenge in both complex primary and revision arthroplasty surgery. To deal with this problem, a number of techniques have been advocated, although there has been no previous systematic review of the literature. In the present review, we have attempted to identify a coherent strategy for addressing this problem, taking into account the degree of bone loss, the advantages and limits of standard implants, bone reconstruction techniques and the use of customized prostheses...
October 2016: Shoulder & Elbow
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