title: Horizontal rotation of the patella. A case report with review of the literature.
abstract: In a 14-year-old boy a direct blow caused the patella to rotate around its horizontal axis; the articular surface faced distally. Thirty-two cases have been described previously.
mesh_terms: D000293:Adolescent; D001265:Athletic Injuries / Q000628:therapy; D006801:Humans; D004204:Joint Dislocations / Q000209:etiology* / Q000628:therapy; D008297:Male; D010329:Patella / Q000293:injuries* / Q000503:physiopathology; D012399:Rotation; D012916:Soccer