ANATOMY:
Radial collateral ligament:
From lateral epicondyle, blends with annular ligament
Lateral ulnar collateral ligament:
From lateral epicondyle, courses along posteromedial margin of radial head (blends with annular ligament), continues medially, inserts into supinator crest of ulna
Annular ligament:
From anterior and posterior margin of radial notch, encircles radial head
MR:
Less clearly seen than medial collateral ligament
