Correlation between glenoid inclination and critical shoulder angle: a radiographic and computed tomography study

Daggett, Matthew; Werner, Birgit; Collin, Philipp; Gauci, Marc-Olivier; Chaoui, Jean; Walch, Gilles

doi:10.1016/j.jse.2015.07.013

Cited by 93 publications

(80 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…One study (n=724) determined that the OR for developing osteoarthritis in those with a CSA <30° was 2.25 (p=0.002) 35. Lastly, one study (n=50) found no difference in mean CSA between patients with osteoarthritis versus those with massive rotator cuff tears10 (online supplementary appendix table 2). …”

Section: Resultsmentioning

confidence: 99%

Critical shoulder angle is an effective radiographic parameter that is associated with rotator cuff tears and osteoarthritis: a systematic review

et al. 2019

View full text Add to dashboard Cite

Section: Resultsmentioning

confidence: 99%

Critical shoulder angle is an effective radiographic parameter that is associated with rotator cuff tears and osteoarthritis: a systematic review

et al. 2019

View full text Add to dashboard Cite

“…Since these parameters were characterized by long acromia with superiorly-inclined glenoid fossae, it was understood that the smaller deltoid moment arm may result in the decentralization of the force vector on the glenoid fossa (Moor et al, 2014a;Viehöfer et al). Therefore, a greater load would be required by the rotator cuff muscles to counterbalance the deltoid force, thus initiating rotator cuff tears (Moor et al, 2013;Moor et al, 2014a;Bouaicha et al;Daggett et al;Spiegl et al).…”

Section: Discussionmentioning

confidence: 99%

“…The critical shoulder angle, an analytical tool of an individual's scapular anatomy, quantifies the angle between the superior and inferior osseous glenoidal margins and the lateral-most aspect of the acromion (Moor et al, 2012;Bouaicha et al;Gerber et al;Daggett et al, 2015;Spiegl et al;Viehöfer et al, 2016). This novel radiological parameter provides reasoning for the occurence of glenohumeral osteoarthritis or rotator cuff tears by measuring both the lateral acromial extension and the glenoid slope (Moor et al, 2013;Gerber et al;Spiegl et al).…”

Section: Introductionmentioning

confidence: 99%

Predictors of Shoulder Degeneration in the KwaZulu-Natal Population of South Africa

Naidoo¹,

Lazarus

Tongel

et al. 2018

Int. J. Morphol.

View full text Add to dashboard Cite

NAIDOO, N.;LAZARUS, L.; VAN TONGEL, A.; OSMAN, S. A. & SATYAPAL, K. S. Predictors of shoulder degeneration in theKwaZulu-Natal population of South Africa. Int. J. Morphol., 36(1):92-96, 2018. SUMMARY:The critical shoulder angle and acromion index are conventional radiological tools employed as predictors of shoulder degeneration. As they represent the static components of glenohumeral stability, the scapulo-humeral geometry and underlying subacromial tissue appear as the resultant cause-effect factors. Consequently, the purpose of this study was to investigate the critical shoulder angle and acromion index as interrelated parameters within the South African population. The measurement of both biomechanical parameters was conducted on two-hundred and sixty (n = 260) true AP radiographs. This was a cross-sectional study that also incorporated the demographic representation of the population group which was analysed accordingly. The mean values recorded for both the critical shoulder angle (36.31±5.84º) and acromion index (0.74±0.13) suggested rotator cuff arthropathy. The results confirmed the theories of Nyffeler et al. (2006) and Moor et al. (2012) who alluded to glenoid inclination and the acromial coverage over the humeral head. A significant proportionality correlation, verified by a P value of 0.000, was established between the acromion index and critical shoulder angle which may assist to differentiate between normal asymptomatic shoulders and those with cuff disease. Furthermore, these predictors of shoulder degeneration may present as a preventative tool against tear progression.

show abstract

“…7 By defining the acromion angle (AA), CSA can be written as the sum of 2 angles: CSA = AA + GI (Fig. 1).…”

Section: Discussionmentioning

confidence: 99%

“…These initial results were recently confirmed, whereas the specific effect of GI was dissociated from CSA. 7 In vivo joint motion and various morphologic parameters were also tested for correlation, but only CSA proved to be significantly higher in subjects with pathologic rotator cuffs than in controls. 31 Two biomechanical cadaveric experiments confirmed the specific effect of AI and GI on glenohumeral joint stability, as well as their relation with CSA.…”

mentioning

confidence: 99%

Effects of glenoid inclination and acromion index on humeral head translation and glenoid articular cartilage strain

Engelhardt

Farron

Becce

et al. 2017

Journal of Shoulder and Elbow Surgery

View full text Add to dashboard Cite

Background: Previous clinical studies have reported associations between glenoid inclination (GI), the acromion index (AI), and the critical shoulder angle (CSA) on the one hand and the occurrence of glenohumeral osteoarthritis and supraspinatus tendon tears on the other hand. The objective of this work was to analyze the correlations and relative importance of these different anatomic parameters. Methods: Using a musculoskeletal shoulder model developed from magnetic resonance imaging scans of 1 healthy volunteer, we varied independently GI from 0°to 15°and AI from 0.5 to 0.8. The corresponding CSA varied from 20.9°to 44.1°. We then evaluated humeral head translation and critical strain volume in the glenoid articular cartilage at 60°of abduction in the scapular plane. These values were correlated with GI, AI, and CSA. Results: Humeral head translation was positively correlated with GI (R = 0.828, P < .0001), AI (R = 0.539, P < .0001), and CSA (R = 0.964, P < .0001). Glenoid articular cartilage strain was also positively correlated with GI (R = 0.489, P = .0004) but negatively with AI (R = −0.860, P < .0001) and CSA (R = −0.285, P < .0473). Conclusions: The biomechanical shoulder model is consistent with clinical observations. The prediction strength of CSA is confirmed for humeral head translation and thus presumably for rotator cuff tendon tears, whereas the AI seems more appropriate to evaluate the risk of glenohumeral osteoarthritis caused by excessive articular cartilage strain. As a next step, we should corroborate these theoretical findings with clinical data.

show abstract

Correlation between glenoid inclination and critical shoulder angle: a radiographic and computed tomography study

Cited by 93 publications

References 21 publications

Critical shoulder angle is an effective radiographic parameter that is associated with rotator cuff tears and osteoarthritis: a systematic review

Critical shoulder angle is an effective radiographic parameter that is associated with rotator cuff tears and osteoarthritis: a systematic review

Predictors of Shoulder Degeneration in the KwaZulu-Natal Population of South Africa

Effects of glenoid inclination and acromion index on humeral head translation and glenoid articular cartilage strain

Contact Info

Product

Resources

About