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