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Glenoid bone loss

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https://www.readbyqxmd.com/read/29216740/new-concepts-of-radiologic-preoperative-evaluation-of-anterior-shoulder-instability-on-track-and-off-track-lesions
#1
Aishwarya Gulati, Riham Dessouky, Vibhor Wadhwa, Drew Sanders, Avneesh Chhabra
The shoulder is the most frequently dislocated joint in the body due to a larger range of motion and a small area of articulation between the humeral and glenoid surfaces. Traumatic shoulder dislocations, especially those associated with injury to the labroligamentous or bony stabilizers of the joint, lead to further reduction of articular surface contact with resultant glenohumeral instability and recurrent shoulder dislocations. Imaging plays an increasingly important role in the preoperative evaluation of patients with traumatic shoulder instability by evaluating glenohumeral bone loss (uni- or bipolar), assessing soft tissue injuries and identifying patients at risk of postoperative recurrence...
January 1, 2017: Acta Radiologica
https://www.readbyqxmd.com/read/29198939/three-dimensional-computed-tomography-measurement-accuracy-of-varying-hill-sachs-lesion-size
#2
Anthony Ho, Michael D Kurdziel, Denise M Koueiter, J Michael Wiater
BACKGROUND: The glenoid track concept has been proposed to correlate shoulder stability with bone loss. Accurate assessment of Hill-Sachs lesion size preoperatively may affect surgical planning and postoperative outcomes; however, no measurement method has been universally accepted. This study aimed to assess the accuracy and reliability of measuring Hill-Sachs lesion sizes using 3-dimensional (3D) computed tomography (CT). METHODS: Nine polyurethane humerus bone substitutes were used to create Hill-Sachs lesions of varying sizes with a combination of lesion depth (shallow, intermediate, and deep) and width (small, medium, and large)...
November 30, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/29198350/editorial-commentary-healthy-skepticism-an-invaluable-trait
#3
EDITORIAL
Richard L Angelo
Using a switching stick from the posterior portal is a frequently employed method of identifying the location for the subscapularis split for a shoulder arthroscopic Latarjet. However, in a recent cadaveric study, in none of the 20 specimens studied did this technique result in the split being placed in the preferred position-the junction of the superior two-thirds and the inferior one-third of the subscapularis. As a result, if the position of the coracoid graft is too superior, the anteroinferior extension of the glenoid arc and the vector of the conjoined sling may be suboptimal and fail to restrain humeral head translation...
December 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/29152006/anatomic-shoulder-arthroplasty-technical-considerations
#4
REVIEW
Bogdan A Matache, P Lapner
Osteoarthritis of the shoulder is a common condition in the aging population, and it can have profound effects on patients' quality of life. The anatomic total shoulder arthroplasty is a well-described treatment modality resulting generally excellent outcomes. The objective of this review is to discuss the technical aspects of primary anatomic total shoulder arthroplasty, and to provide a framework to follow to achieve a successful surgical result. The topics covered include preoperative planning, surgical considerations, and approaches, humeral preparation, glenoid bone loss and the emerging concept of using the reverse total shoulder arthroplasty for the type B2 glenoid...
2017: Open Orthopaedics Journal
https://www.readbyqxmd.com/read/29138871/revision-shoulder-arthroplasty-with-a%C3%A2-reverse-shoulder-prosthesis-use-of-structural-allograft-for-glenoid-bone-loss
#5
S E Ozgur, R Sadeghpour, T R Norris
INTRODUCTION: Revision shoulder arthroplasty presents many unique and complex challenges when glenoid bone loss is involved. A distorted and medialized anatomy prevents the proper mechanics of the reverse prosthesis with regard to deltoid tension and ultimate function. This paper highlights one surgeon's experience using structural allograft for glenoid bone loss. PATIENTS AND METHODS: In all, 20 patients for a total of 24 surgeries with a medialized glenoid and/or substantial glenoid bone loss of grade IIB or higher were evaluated in this retrospective study...
December 2017: Der Orthopäde
https://www.readbyqxmd.com/read/29119123/indication-for-computed-tomography-scan-in-shoulder-instability-sensitivity-and-specificity-of-standard-radiographs-to-predict-bone-defects-after-traumatic-anterior-glenohumeral-instability
#6
Audrey Delage Royle, Frédéric Balg, Martin J Bouliane, Fanny Canet-Silvestri, Laurianne Garant-Saine, David M Sheps, Peter Lapner, Dominique M Rouleau
Background: Quantifying glenohumeral bone loss is key in preoperative surgical planning for a successful Bankart repair. Hypothesis: Simple radiographs can accurately measure bone defects in cases of recurrent shoulder instability. Study Design: Cohort study (diagnosis); Level of evidence, 2. Methods: A true anteroposterior (AP) view, alone and in combination with an axillary view, was used to evaluate the diagnostic properties of radiographs compared with computed tomography (CT) scan, the current gold standard, to predict significant bone defects in 70 patients...
October 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/29114335/imaging-of-the-unstable-shoulder
#7
Paolo Baudi, Manuela Rebuzzi, Giovanni Matino, Fabio Catani
Background: Unstable shoulder can occur in different clinical scenarios with a broad spectrum of symptoms and presentations: first-time (or recurrent) traumatic acute shoulder anterior dislocation or chronic anterior instability after repeated dislocations.Imaging in unstable shoulder is fundamental for choosing the right treatment preventing recurrence.The goal of imaging depends on clinical scenario and patient characteristics. Method: Careful selection and evaluation of the imaging procedures is therefore essential to identify, characterize and quantify the lesions...
2017: Open Orthopaedics Journal
https://www.readbyqxmd.com/read/29100772/the-effect-of-scapula-tilt-and-best-fit-circle-placement-when-measuring-glenoid-bone-loss-in-shoulder-instability-patients
#8
Philipp Moroder, Fabian Plachel, Anna Huettner, Lukas Ernstbrunner, Marvin Minkus, Elisabeth Boehm, Christian Gerhardt, Markus Scheibel
PURPOSE: To analyze the effect of lack of standardization on the reliability of current measurement techniques for glenoid bone loss in clinical practice. METHODS: Ten consecutive patients with anterior glenoid bone loss due to recurrent anterior shoulder instability and available computed tomographic (CT) scans of the affected shoulder were included in this study. One hundred seventy 3-dimensional en-face view images of the 10 glenoids with up to 20° degrees of tilt in the anterior, posterior, superior, and inferior direction were rendered...
October 31, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/29100764/arthroscopic-versus-open-iliac-crest-bone-grafting-in-recurrent-anterior-shoulder-instability-with-glenoid-bone-loss-a-computed-tomography-based-quantitative-assessment
#9
Lukas Ernstbrunner, Fabian Plachel, Philipp Heuberer, Leo Pauzenberger, Philipp Moroder, Herbert Resch, Werner Anderl
PURPOSE: To assess the iliac crest bone graft (ICBG) position in the en-face view and axial plane comparing arthroscopic with open procedures. METHODS: A total of 40 consecutive patients with recurrent anterior shoulder instability and glenoid bone loss over 10% treated by 2 independent orthopaedic departments were included. Two independent observers analyzed preoperative and immediate postoperative computed tomography scans of 20 open (group O) and 20 arthroscopic (group A) procedures...
October 31, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/29098355/superior-glenoid-inclination-and-glenoid-bone-loss-definition-assessment-biomechanical-consequences-and-surgical-options
#10
REVIEW
L Favard, J Berhouet, G Walch, J Chaoui, C Lévigne
Correct anatomical alignment of the glenoid component is of central importance for wear and loosening in shoulder endoprostheses. The aim of this article is to review and clarify the biomechanical and clinical effects of incorrect glenoid inclination in reverse and anatomical joint replacements. Based on the literature and on our own work, statements are made about the following: (1) the glenoid inclination of a normal glenoid, a degenerative glenoid and a glenoid implant, and the consequences if superior inclination is too large, and (2) the surgical technique as well as tips and tricks for correct adjustment of the inclination...
November 2, 2017: Der Orthopäde
https://www.readbyqxmd.com/read/29076041/return-to-sports-after-shoulder-stabilization-surgery-for-anterior-shoulder-instability
#11
REVIEW
Michael J Elsenbeck, Jonathan F Dickens
PURPOSE OF REVIEW: Young athletes continue to experience traumatic shoulder instability and are often plagued by recurrent instability, limiting their return to sport. The purpose of this paper was to review return to sport in athletes after shoulder stabilization surgery for anterior shoulder instability. RECENT FINDINGS: Athletes managed nonoperatively demonstrate unacceptably high rates of recurrent instability and are less likely to successfully return to sport...
December 2017: Current Reviews in Musculoskeletal Medicine
https://www.readbyqxmd.com/read/29066267/accuracy-and-reliability-of-a-simple-calculation-for-measuring-glenoid-bone-loss-on-3-dimensional-computed-tomography-scans
#12
Stephen A Parada, Josef K Eichinger, Guillaume D Dumont, Carrie A Parada, Alyssa R Greenhouse, Matthew T Provencher, Laurence D Higgins, Jon J P Warner
PURPOSE: To establish the accuracy and reliability of the circle-line method (CLM) of measuring glenoid bone loss; to compare the CLM calculation with a traditionally used method of calculating a ratio; and to evaluate surgeons' ability to estimate the amount of glenoid bone loss before performing any calculations. METHODS: Three-dimensional reconstructions of computed tomography scans of consecutive patients with anterior instability and glenoid bone loss were reviewed by 13 surgeons blinded to the diagnosis...
October 21, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/29063152/bone-grafts-used-for-arthroscopic-glenoid-reconstruction-restore-the-native-glenoid-anatomy
#13
Benjamin Bockmann, Arne Johannes Venjakob, Rolf Gebing, Frank Reichwein, Marthe Hagenacker, Wolfgang Nebelung
PURPOSE: Recurrent anterior instability of the glenohumeral joint is a demanding condition, especially in cases of glenoid bone loss. Various treatment options have been described, such as arthroscopic grafting techniques and the Latarjet procedure. In this study, the degree to which an arthroscopically applied iliac crest graft restores the glenoid anatomy was evalutated. METHODS: Nine patients (three women and six men) with an average age of 31 ± 9 years (21-46 years) who were treated with an arthroscopic iliac crest graft technique were included in this study...
October 23, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/29063146/progressive-glenoid-bone-loss-caused-by-erosion-in-humeral-head-resurfacing
#14
B S Werner, J Stehle, A Abdelkawi, P Plumhoff, R Hudek, F Gohlke
BACKGROUND: Cementless surface replacement of the shoulder represents an alternative to conventional stemmed anatomic prostheses. Glenoid erosion is a well-known complication in hemiarthroplasty. However, there is limited data concerning radiographic evaluation and prognostic factors for this phenomenon. OBJECTIVES: The aim of our study was to determine the development of glenoid erosion following shoulder resurfacing using a new measurement technique and detect potential prognostic factors...
October 23, 2017: Der Orthopäde
https://www.readbyqxmd.com/read/29063145/-humeral-and-glenoid-bone-loss-in-shoulder-arthroplasty-classification-and-treatment-principles
#15
REVIEW
F Gohlke, B Werner
TECHNIQUE: The treatment of bone defects in primary shoulder arthroplasty has evolved due to more detailed diagnostic tools, 3D planning and expanded indications for reverse shoulder arthroplasty. Glenoid bone defects combined with chronic posterior subluxation of the humeral head are gradually being treated by glenoid reconstruction and reverse implants even if the rotator cuff is still intact. The treatment of advanced bone loss due to glenoid loosening has been facilitated by bone augmentation using a cementless fixation as proposed by Norris...
October 23, 2017: Der Orthopäde
https://www.readbyqxmd.com/read/28994027/management-of-glenoid-bone-loss-with-anterior-shoulder-instability-indications-and-outcomes
#16
REVIEW
Justin Rabinowitz, Richard Friedman, Josef K Eichinger
PURPOSE OF REVIEW: Glenoid Bone Loss is a commonly encountered problem in anterior shoulder instability. In this article, we review current techniques for diagnosis, indications and management of glenoid bone loss. RECENT FINDINGS: Multiple bone grafting techniques are available depending on the glenoid defect size including the coracoid, distal clavicle, iliac crest, and allograft distal tibia. Advancement in imaging methods allows for more accurate quantification of bone loss...
December 2017: Current Reviews in Musculoskeletal Medicine
https://www.readbyqxmd.com/read/28994025/applying-the-glenoid-track-concept-in-the-management-of-patients-with-anterior-shoulder-instability
#17
REVIEW
Amit M Momaya, John M Tokish
PURPOSE OF REVIEW: The purpose of this paper is to evaluate the recent evolution in the treatment of anterior shoulder instability and the dynamic interaction between the glenoid and Hill-Sachs lesion. RECENT FINDINGS: Through the glenoid track concept, glenoid- and humeral-sided bone loss are evolving away from being approached as separate entities. Recent cadaveric studies have validated the glenoid track concept. Moreover, a recent clinical study has demonstrated a much higher rate of failure after arthroscopic Bankart repair for shoulders that were off track...
December 2017: Current Reviews in Musculoskeletal Medicine
https://www.readbyqxmd.com/read/28988351/management-of-complex-anterior-shoulder-instability-a-case-based-approach
#18
REVIEW
Nathan Olszewski, Michael Gustin, Emily J Curry, Xinning Li
PURPOSE OF THE REVIEW: The goal of this review is to provide a guide on surgical decision-making options for complex anterior shoulder instability using a case-based approach. RECENT FINDINGS: Arthroscopic Bankart repair is well documented for having successful outcomes in patients with isolated labral tear involvement with minimal bone loss. Latarjet is a generally accepted procedure in patients with 20-30% glenoid bone loss. When bone loss exceeds that which cannot be managed through Latarjet, a range of options exist and are highly dependent upon the extent of osseous deficiency on both the glenoid and humeral sides, surgeon experience, and patient-specific factors...
December 2017: Current Reviews in Musculoskeletal Medicine
https://www.readbyqxmd.com/read/28979604/management-of-humeral-defects-in-anterior-shoulder-instability
#19
Maria Valencia Mora, Miguel Ángel Ruiz-Ibán, Jorge Diaz Heredia, Raquel Ruiz Diaz, Ricardo Cuéllar
BACKGROUND: A Hill Sachs lesion is a posterior-superior bony defect of the humeral head caused by a compression of the hard glenoid rim against the soft cancellous bone in the context of an anterior instability episode. The presence of these humeral defects increases with the number of dislocations and larger lesions are associated with a greater chance of development of recurrent instability and recurrence after surgery. Also its location and pattern, in particular the so-called engaging Hill-Sachs, are associated with poor prognosis...
2017: Open Orthopaedics Journal
https://www.readbyqxmd.com/read/28979603/controversies-in-the-surgical-management-of-shoulder-instability-associated-soft-tissue-procedures
#20
Santos Moros Marco, José Luis Ávila Lafuente, Miguel Angel Ruiz Ibán, Jorge Diaz Heredia
BACKGROUND: The glenohumeral joint is a ball-and-socket joint that is inherently unstable and thus, susceptible to dislocation. The traditional and most common anatomic finding is the Bankart lesion (anterior-inferior capsule labral complex avulsion), but there is a wide variety of anatomic alterations that can cause shoulder instability or may be present as a concomitant injury or in combination, including bone loss (glenoid or humeral head), complex capsule-labral tears, rotator cuff tears, Kim´s lesions (injuries to the posterior-inferior labrum) and rotator interval pathology...
2017: Open Orthopaedics Journal
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