Posterior capsular tears

http://musculoskeletalmri.blogspot.com.au/2011/12/charlie-brown-and-knee-injury.html

Scenario: Hyperextension, "pop", intact cruciates, posterior capsular tear

Shoulder MRI Approach

http://www.raddaily.com/whitepaperarticle.php?articleTitle=Shoulder+MRI+Approach

Reverse Hill Sachs

Peripheral Vertical Longitudinal Tear Posterior Labrum

Pearls from Stoller Macau April 2011 - 2.Shoulder

1. Anterior band of IGHL can have high attachment -- 3rd structure on axial (in addition to labrum and MGHL).
2. Sublabral foramen (antero-superior); sublabral sulcus (superior)
3. Hill-Sachs - position - where articular cartilage in NOT; at level of footprint on axial (1st two slices).
4. MGHL - "squiggly" on Sag.
5. Patterns of glenoid sclerosis.
6. Anteroinferior labrum -- assess 1st -- spectrum of injury
• Perthes -  labral tear, minimal displacement, intact periosteum
• ALPSA - labral tear and medial displacement of IGLLC, medially stripped but intact periosteum (NB POLPSA)
• GLAD - labral tear (partial), no detachment, chondral defect, intact periosteum
• Bankart - avulsion of IGLLC (anterior and medial), disruption of scapula perisoteum
7.  SGHL/CHL -- "Biceps pulley" -- look on Sag
8. HAGL -- anterior band IGHL tear (+BHAGL) aot RHAGL or PHAGL -- post. band
9. GAGL
10. "Wave Sign" -- massive RC tear  - repairable acute tear without scarring

Anterosuperior Labral Tear with Paralabral Cyst

POLPSA

Increased T2 signal in Distal Clavicle

Skeletal Radiol. 2000 Dec;29(12):697-702. 

Increased T2 signal intensity in the distal clavicle: incidence and clinical implications.

Fiorella D, Helms CA, Speer KP.

http://www.ncbi.nlm.nih.gov/pubmed/11271550?dopt=Abstract

Rice Bodies in RA

Old HAGL Lesion

Subcoracoid Impingement and Subscapularis Tear

Normal coracohumeral distance is betweeen 8.4-11mm. In this case it was about 3mm.

Meso Os Acromiale

Adhesive Capsulitis

Normal capsular thickness is up to 3mm.

Lateral Downsloping of Acromion

Adhesive Capsulitis

SLAP V

SLAP V = SLAP + Bankart

Full Thickness Anterior SST Tear

Sublabral Recess