title: The symptomatic os trigonum.
mesh_terms: D000328:Adult; D000368:Aged; D000842:Ankle / Q000002:abnormalities*; D005534:Foot Diseases / Q000188:drug therapy / Q000601:surgery; D006801:Humans; D008012:Lidocaine / Q000627:therapeutic use; D008297:Male; D011239:Prednisolone / Q000627:therapeutic use
chemical_list: D008012:Lidocaine; D011239:Prednisolone