scholarly journals Glenoid morphology Walch type B2

2021 ◽  
Author(s):  
Domenico Nicoletti
Keyword(s):  
Glenoid Morphology

scholarly journals Supraspinatus-to-Glenoid Contact Occurs During Standardized Overhead Reaching Motion

2021 ◽  
Vol 9 (10) ◽  
pp. 232596712110369
Author(s):  
Gaura Saini ◽  
Rebekah L. Lawrence ◽  
Justin L. Staker ◽  
Jonathan P. Braman ◽  
Paula M. Ludewig
Keyword(s):  
Rotator Cuff ◽  
Pearson Correlation ◽  
Supraspinatus Tendon ◽  
Contact Angles ◽  
Magnetic Resonance Images ◽  
Rotator Cuff Tears ◽  
Internal Impingement ◽  
Glenoid Morphology ◽  
Minimum Distances ◽  
The Relationship

Background: Rotator cuff tears may result from repeated mechanical deformation of the cuff tendons, and internal impingement of the supraspinatus tendon against the glenoid is one such proposed mechanism of deformation. Purpose: To (1) describe the changing proximity of the supraspinatus tendon to the glenoid during a simulated overhead reaching task and (2) determine the relationship between scapular morphology and this proximity. Additionally, the patterns of supraspinatus-to-glenoid proximity were compared with previously described patterns of supraspinatus-to-coracoacromial arch proximity. Study Design: Descriptive laboratory study. Methods: Shoulder models were created from magnetic resonance images of 20 participants. Standardized kinematics were imposed on the models to simulate functional reaching, and the minimum distances between the supraspinatus tendon and the glenoid and the supraspinatus footprint and the glenoid were calculated every 5° between 0° and 150° of humerothoracic elevation. The angle at which contact between the supraspinatus and the glenoid occurred was documented. Additionally, the relationship between glenoid morphology (version and inclination) and the contact angle was evaluated. Descriptive statistics were calculated for the minimum distances, and glenoid morphology was assessed using Pearson correlation coefficients and simple linear regressions. Results: The minimum distances between the tendon and the glenoid and between the footprint and the glenoid decreased as elevation increased. Contact between the tendon and the glenoid occurred in all participant models at a mean elevation of 123° ± 10°. Contact between the footprint and the glenoid occurred in 13 of 20 models at a mean of 139° ± 10°. Less glenoid retroversion was associated with lower tendon-to-glenoid contact angles ( r = –0.76; R 2 = 0.58; P < .01). Conclusion: This study found that the supraspinatus tendon progressively approximated the glenoid during simulated overhead reaching. Additionally, all participant models eventually made contact with the glenoid by 150° of humerothoracic elevation, although anatomic factors influenced the precise angle at which contact occurred. Clinical Relevance: Contact between the supraspinatus and the glenoid may occur frequently within the range of elevation required for overhead activities. Therefore, internal impingement may be a prevalent mechanism for rotator cuff deformation that could contribute to cuff pathology.

Radiographs and computed tomography scans show similar observer agreement when classifying glenoid morphology in glenohumeral arthritis

2017 ◽  
Vol 26 (9) ◽  
pp. 1533-1538 ◽  
Author(s):  
Jessica G. Aronowitz ◽  
W. Scott Harmsen ◽  
Cathy D. Schleck ◽  
John W. Sperling ◽  
Robert H. Cofield ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Observer Agreement ◽  
Glenohumeral Arthritis ◽  
Computed Tomography Scans ◽  
Glenoid Morphology

scholarly journals Interobserver and intraobserver comparison of imaging glenoid morphology, glenoid version and humeral head subluxation

2018 ◽  
Vol 11 (3) ◽  
pp. 204-209 ◽  
Author(s):  
Paul J Cagle ◽  
Birgit Werner ◽  
Dave R Shukla ◽  
Daniel A London ◽  
Bradford O Parsons ◽  
...  
Keyword(s):  
Humeral Head ◽  
Interobserver Agreement ◽  
Weighted Kappa ◽  
Similar Efficacy ◽  
Ct Images ◽  
Glenoid Version ◽  
Kappa Value ◽  
Glenoid Morphology ◽  
Magnetic Resonance Imaging Mri ◽  
Ct And Mri

Background Glenoid morphology, glenoid version and humeral head subluxation represent important parameters for the treating physician. The most common method of assessing glenoid morphology is the Walch classification which has only been validated with computed tomography (CT). Methods CT images and magnetic resonance imaging (MRI) images of 25 patients were de-identified and randomized. Three reviewers assessed the images for each parameter twice. The Walch classification was assessed with a weighted kappa value. Glenoid version and humeral head subluxation were comparted with a reproducibility coefficient. Results The Walch classification demonstrated almost perfect intraobserver agreement for MRI and CT images (k = 0.87). Weighted interobserver agreement values for the Walch classification were fair for CT and MRI (k = 0.34). The weighted reproducibility coefficient for glenoid version measured 9.13 (CI 7.16–12.60) degrees for CT and 13.44 (CI 10.54–18.55) degrees for MRI images. The weighted reproducibility coefficient for percentage of humeral head subluxation was 17.43% (CI 13.67–24.06) for CT and 18.49% (CI 14.5–25.52) for MRI images. Discussion CT and MRI images demonstrated similar efficacy in classifying glenoid morphology, measuring glenoid version and measuring posterior humeral head subluxation. MRI can be used as an alternative to CT for measuring these parameters.

QUANTITATIVE DESCRIPTION OF THE JAPANESE GLENOID MORPHOLOGY

2007 ◽  
Vol 40 ◽  
pp. S586
Author(s):  
T Nakamura ◽  
N Yamamoto ◽  
K Yamada ◽  
E Itoi
Keyword(s):  
Quantitative Description ◽  
Glenoid Morphology

Quantification of B2 glenoid morphology in total shoulder arthroplasty

2015 ◽  
Vol 24 (8) ◽  
pp. 1212-1217 ◽  
Author(s):  
R. Sean Churchill ◽  
Edwin E. Spencer ◽  
Edward V. Fehringer
Keyword(s):  
Shoulder Arthroplasty ◽  
Total Shoulder Arthroplasty ◽  
Glenoid Morphology

Effect of anatomic bone grafting in post-traumatic recurrent anterior shoulder instability on glenoid morphology

2013 ◽  
Vol 22 (11) ◽  
pp. 1522-1529 ◽  
Author(s):  
Philipp Moroder ◽  
Wolfgang Hitzl ◽  
Mark Tauber ◽  
Thomas Hoffelner ◽  
Herbert Resch ◽  
...  
Keyword(s):  
Shoulder Instability ◽  
Bone Grafting ◽  
Anterior Shoulder Instability ◽  
Glenoid Morphology ◽  
Post Traumatic ◽  
Recurrent Anterior Shoulder Instability

Prediction of normal glenoid morphology with statistical shape modelling

2016 ◽  
Vol 102 (7) ◽  
pp. S181-S182
Author(s):  
Steve Berger ◽  
Alexandre Terrier ◽  
Fabio Becce ◽  
Alain Farron ◽  
Philippe Büchler
Keyword(s):  
Shape Modelling ◽  
Statistical Shape ◽  
Glenoid Morphology ◽  
Statistical Shape Modelling

Clinical Outcome and Glenoid Morphology After Arthroscopic Repair of Chronic Osseous Bankart Lesions

2015 ◽  
Vol 97 (22) ◽  
pp. 1833-1843 ◽  
Author(s):  
Soichiro Kitayama ◽  
Hiroyuki Sugaya ◽  
Norimasa Takahashi ◽  
Keisuke Matsuki ◽  
Nobuaki Kawai ◽  
...  
Keyword(s):  
Clinical Outcome ◽  
Arthroscopic Repair ◽  
Glenoid Morphology ◽  
Bankart Lesions
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