Shoulder anatomy-Night terror for interns

Congress:

ESSR 2017

Poster Number:

P-0318

Type:

Educational Poster

Keywords:

Musculoskeletal soft tissue, Anatomy, MR, Ultrasound, Diagnostic procedure, Education, Inflammation, Education and training

Authors:

C. A. B. Oliveira¹, L. B. Barbosa², T. Dionisio¹, V. Mendes¹; ¹Braga/PT, ²Coimbra/PT

DOI:

10.1594/essr2017/P-0318

DOI-Link:

https://dx.doi.org/10.1594/essr2017/P-0318

Fig. 1: Partial rupture of supraspinatus tendon 8 mm coronal plane 6 mm saggital...

Fig. 2: Normal trophic state of the different components

Fig. 3: Suprapinatus multiple calcifications-Calcific tendinitis

Fig. 4: Tenosynovitis biceps tendon

Learning objectives

Review the rotator cuff anatomy, pathology and pitfalls during reporting.

Background

The rotator cuff consists of the supraspinatus, infraspinatus, subscapularis, and teres minor muscles and tendons. At the distal aspect of the rotator cuff, the supraspinatus and infraspinatus tendons splay out and interdigitate, forming a common continuous insertion on the middle facet of the humeral greater tuberosity. To a lesser extent, the supraspinatus and subscapularis tendons demonstrate contiguity, with interwoven fibers from these two tendons enveloping the biceps tendon.

Imaging findings OR Procedure Details

Rotator cuff anatomy Fonte- http://www.jouefct.com/rotator-cuff-anatomy-gallery-download-top-10/rotator-cuff-anatomy-gallery-download-top-10-shoulder/ The shoulder is a synovial articulation in which the shallow glenoid is deepened an additional 50% by the fibrocartilaginous labrum that forms a rim around the perimeter of the glenoid (1). Four muscles attach as tendons onto the proximal humerus and make up the rotator The supraspinatus, subscapularis, infraspinatus, and teres minor are the componentes of the rotator cuff and have insertion on the greater tuberosity of the proximal humerus, the lesser tuberosity of the proximal humerus the posterior aspect...

Conclusion

The rotator cuff is a complex anatomic structure, with MRI allowing the most accurate and appropriate approach.

References

1. Kronberg M, Nemeth G, Brostrom LA. Muscle activity and coordination in the normal shoulder: an electromyographic study. Clin Orthop Relat Res 1990;257:76 – 85. 2. Wilk KE, Arrigo CA, Andrews JR. Current con- cepts: the stabilizing structures of the glenohu- meral joint. J Orthop Sports Phys Ther 1997; 25(6):364 –379. 3. Lee SB, Kim KJ, O’Driscoll SW, Morrey BF, An KN. Dynamic glenohumeral stability provided by the rotator cuff muscles in the mid-range and end-range of motion: a study in cadavera. J Bone Joint...