Colles = distal radius, dinner fork. Scaphoid = snuff box tenderness, AVN risk.

Osteosarcoma = Sunburst, Codman triangle. Ewing = Onion skin, t(11;22).

OA = DIPs (Heberden), PIPs (Bouchard). RA = PIPs+MCPs, spares DIP.

L4-L5 IVDP = L5 root. Pott's spine = thoracolumbar TB. Gibbus deformity.

CTEV = Pirani score, Ponseti method. DDH = Barlow/Ortolani test. Perthes = AVN femoral head.

Mallet finger = DIP extension loss. Boutonniere = PIP flexion deformity. Volkmann = compartment syndrome.