Pearls from Stoller Macau April 2011 - 9. Elbow

1. Anatomical Variants
• pseudo defect of trochlea
• transverse trochlea ridge
• pseudo defect of capitellum (post on coronal)
2. Valgus injury (throwing) - tension medial side, compression lateral side
3. "T sign" - partial tear anterior bundle MCL distally
4. Medial Anatomy - PT, FCR, FDS
5. Lateral Anatomy - ECRB (most common tendon involved), EDC, ECU
6. Lateral - 3 ligaments - LCL, LUCL (attaches to supinator crest of ulna distally), annular ligament
7. Biceps tear - if partial need to state wether under or over 50%
8. Lacertus fibrosis - medial to biceps on axial; prevents proximal "slingshot" of torn biceps 
9. Anconeus epitochlearis