Glenoid version and its relationship to glenohumeral instability and labral tears

2016 ◽  
Vol 25 (7) ◽  
pp. 1056-1063 ◽  
Author(s):  
David M. Privitera ◽  
Elana J. Siegel ◽  
Lindsay R. Miller ◽  
Nathan J. Sinz ◽  
Laurence D. Higgins
Keyword(s):  
Glenoid Version ◽  
Glenohumeral Instability ◽  
Labral Tears

scholarly journals Analysis of glenohumeral morphological factors for anterior shoulder instability and rotator cuff tear by magnetic resonance imaging

2018 ◽  
Vol 26 (2) ◽  
pp. 230949901876810 ◽  
Author(s):  
B Saygi ◽  
N Karahan ◽  
O Karakus ◽  
AI Demir ◽  
OC Ozkan ◽  
...  
Keyword(s):  
Magnetic Resonance ◽  
Rotator Cuff ◽  
Rotator Cuff Tear ◽  
Shoulder Instability ◽  
Normal Population ◽  
Anterior Shoulder Instability ◽  
Glenoid Version ◽  
Glenohumeral Instability ◽  
Cuff Tear ◽  
Coronal Height

Objective: The aim of this study was to investigate whether there are glenohumeral morphological differences between normal population, glenohumeral instability, and rotator cuff pathology. Method: In this study, shoulder magnetic resonance (MR) images of 150 patients were evaluated. Patients included in the study were studied in three groups of 50 individuals: patients with anterior shoulder instability in group 1, patients with rotator cuff tear in group 2, and control subjects without shoulder pathology in group 3. Results: There were statistically significant differences between groups in evaluations for glenoid version, glenoid coronal height, glenoid coronal diameter, humeral axial and coronal diameters, and coracohumeral interval distances. Significant differences were observed between groups 2 and 3 in glenoid axial diameter, glenoid coronal height, glenoid depth, humeral coronal diameter, and coracohumeral distances. Conclusion: The results obtained in this study suggest that glenoid version, glenoid coronal height and diameter, humeral diameter, and coracohumeral interval parameters in glenohumeral morphology-related parameters in patients with anterior instability are different from those of normal population and patients with rotator cuff pathology. In cases where there is a clinically difficult diagnosis, these radiological measurements will be helpful to clinicians in diagnosis and treatment planning, especially in cases of treatment-resistant cases.

scholarly journals Current Concepts in the Diagnosis and Management of Traumatic, Anterior Glenohumeral Subluxations

2017 ◽  
Vol 5 (3) ◽  
pp. 232596711769433 ◽  
Author(s):  
Joseph A. Gil ◽  
Steven DeFroda ◽  
Brett D. Owens
Keyword(s):  
Surgical Treatment ◽  
Natural History ◽  
Treatment Outcomes ◽  
Humeral Head ◽  
High Rate ◽  
Young Athletes ◽  
Glenohumeral Instability ◽  
Recurrent Instability ◽  
Labral Tears ◽  
History Of

Traumatic anterior glenohumeral subluxations comprise the majority of glenohumeral instability events and are endemic in young athletes. Unlike the definitive complete dislocation event, subluxation events may often be more subtle in presentation and, therefore, may be overlooked by clinicians. Glenohumeral subluxation events are associated with a high rate of labral tears as well as humeral head defects. While less is known of the natural history of these injuries, young athletes are at risk for recurrent instability events if not properly diagnosed and treated. While reports of surgical treatment outcomes isolated to subluxation events are limited, arthroscopic and open Bankart repair have been shown to result in excellent outcomes. The purpose of this paper is to review the etiology and pathoanatomy of traumatic anterior glenohumeral subluxations as well as to review the appropriate evaluation and management of patients with this injury.

The Role of the Glenoid Version in Glenohumeral Instability

2021 ◽  
Vol 30 (7) ◽  
pp. e443
Author(s):  
Onur Tunali ◽  
Gokhan Karademir ◽  
Ali Ersen ◽  
Ata Can Atalar
Keyword(s):  
Glenoid Version ◽  
Glenohumeral Instability

scholarly journals Shoulder: Instability

2021 ◽  
pp. 1-9
Author(s):  
Michael J. Tuite ◽  
Christian W. A. Pfirrmann
Keyword(s):  
Glenohumeral Joint ◽  
External Rotation ◽  
Rotator Cuff Tears ◽  
Glenoid Fossa ◽  
Glenohumeral Instability ◽  
Glenoid Labrum ◽  
Glenohumeral Ligaments ◽  
Labral Tears ◽  
The Stability ◽  
Spinoglenoid Notch

AbstractGlenohumeral instability is the inability to keep the humeral head centered in the glenoid fossa. Glenohumeral instability can be classified according to etiology and direction of instability. The glenoid labrum, the glenohumeral ligaments, and the bony structures contribute to the stability glenohumeral joint and need to be addressed with imaging. One of the difficulties with accurately diagnosing labral tears on MR imaging is the normal labral variants, which can sometimes appear similar to tears. The location and extent of a Hill-Sachs lesion and glenoid rim defects need to be related to recognize engaging Hill-Sachs lesions or off-track situations. There are several types of labral tears that are not associated with a prior dislocation. SLAP tears are one of the more common tears of the labrum and can sometimes be difficult to distinguish from a normal variant superior sublabral recess. Labral tears in overhead thrower occur in the posterosuperior labrum, adjacent to the posterior rotator cuff tears in these athletes. Tears in the posterosuperior labrum are also associated with spinoglenoid notch paralabral cysts, which can be painful and cause external rotation weakness.

Association of glenoid labral cysts with labral tears and glenohumeral instability: radiologic findings and clinical significance.

Radiology ◽  
1994 ◽  
Vol 190 (3) ◽  
pp. 653-658 ◽  
Author(s):  
P F Tirman ◽  
J F Feller ◽  
D L Janzen ◽  
C G Peterfy ◽  
A G Bergman
Keyword(s):  
Clinical Significance ◽  
Glenohumeral Instability ◽  
Radiologic Findings ◽  
Labral Tears

Circumferential Labral Tears Resulting From a Single Anterior Glenohumeral Instability Event

2011 ◽  
Vol 40 (1) ◽  
pp. 213-217 ◽  
Author(s):  
Jonathan F. Dickens ◽  
Kelly G. Kilcoyne ◽  
Jeffrey Giuliani ◽  
Brett D. Owens
Keyword(s):  
Glenohumeral Instability ◽  
Labral Tears ◽  
Anterior Glenohumeral Instability

scholarly journals Glenohumeral instability: Validity of low-field MRI for diagnosis of labral tears

2016 ◽  
Vol 47 (4) ◽  
pp. 1521-1528
Author(s):  
A. Bartolomé ◽  
T. Pirogova ◽  
M.J. Bartolomé ◽  
R. Sánchez ◽  
F. García de Lucas
Keyword(s):  
Glenohumeral Instability ◽  
Low Field ◽  
Labral Tears ◽  
Low Field Mri

Anterior Glenohumeral Instability

1983 ◽  
Vol 2 (2) ◽  
pp. 319-338 ◽  
Author(s):  
Frederick A. Matsen ◽  
Joseph D. Zuckerman
Keyword(s):  
Glenohumeral Instability ◽  
Anterior Glenohumeral Instability

Labral Tears in Throwing and Racquet Sports

1991 ◽  
Vol 10 (4) ◽  
pp. 901-911 ◽  
Author(s):  
James R. Andrews ◽  
Seth P. Kupfennan ◽  
Charles J. Dillman
Keyword(s):  
Racquet Sports ◽  
Labral Tears

scholarly journals Factors related to large bone defects of bipolar lesions and a high number of instability episodes with anterior glenohumeral instability

2021 ◽  
Vol 16 (1) ◽  
Author(s):  
Noboru Matsumura ◽  
Kazuya Kaneda ◽  
Satoshi Oki ◽  
Hiroo Kimura ◽  
Taku Suzuki ◽  
...  
Keyword(s):  
Humeral Head ◽  
Glenohumeral Joint ◽  
Three Dimensional ◽  
Clinical Results ◽  
Bone Defects ◽  
Symptom Duration ◽  
Glenohumeral Instability ◽  
Explanatory Variables ◽  
Large Bone ◽  
Large Bone Defects

Abstract Background Significant bone defects are associated with poor clinical results after surgical stabilization in cases of glenohumeral instability. Although multiple factors are thought to adversely affect enlargement of bipolar bone loss and increased shoulder instability, these factors have not been sufficiently evaluated. The purpose of this study was to identify the factors related to greater bone defects and a higher number of instability episodes in patients with glenohumeral instability. Methods A total of 120 consecutive patients with symptomatic unilateral instability of the glenohumeral joint were retrospectively reviewed. Three-dimensional surface-rendered/registered models of bilateral glenoids and proximal humeri from computed tomography data were matched by software, and the volumes of bone defects identified in the glenoid and humeral head were assessed. After relationships between objective variables and explanatory variables were evaluated using bivariate analyses, factors related to large bone defects in the glenoid and humeral head and a high number of total instability episodes and self-irreducible dislocations greater than the respective 75th percentiles were evaluated using logistic regression analyses with significant variables on bivariate analyses. Results Larger humeral head defects (P < .001) and a higher number of total instability episodes (P = .032) were found to be factors related to large glenoid defects. On the other hand, male sex (P = .014), larger glenoid defects (P = .015), and larger number of self-irreducible dislocations (P = .027) were related to large humeral head bone defects. An increased number of total instability episodes was related to longer symptom duration (P = .001) and larger glenoid defects (P = .002), and an increased number of self-irreducible dislocations was related to larger humeral head defects (P = .007). Conclusions Whereas this study showed that bipolar lesions affect the amount of bone defects reciprocally, factors related to greater bone defects differed between the glenoid and the humeral head. Glenoid defects were related to the number of total instability episodes, whereas humeral head defects were related to the number of self-irreducible dislocations.

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