title: Protrusio acetabuli and bilateral basicervical femoral neck fractures in a patient with Marfan syndrome.
abstract: A 22-year-old man with Marfan syndrome and bilateral protrusio acetabuli presented with bilateral femoral neck stress fractures after vigorous stretching exercises for hip "stiffness." Fifteen years later, his fractures, which were treated with internal fixation, have healed, his acetabular protrusion has not worsened, and his perceived hip "stiffness" persists. This case demonstrates a rare manifestation of Marfan syndrome, protrusio acetabuli, and a possible side effect of vigorous stretching in the face of abnormal joint mechanics.
authors.affiliation: Orthopaedic Trauma Service, Massachusetts General Hospital, Boston, Massachusetts, USA.
authors.forename: F D
authors.initials: FD
authors.lastname: Kharrazi
authors.forename: W B
authors.initials: WB
authors.lastname: Rodgers
authors.forename: D L
authors.initials: DL
authors.lastname: Coran
authors.forename: J R
authors.initials: JR
authors.lastname: Kasser
authors.forename: J E
authors.initials: JE
authors.lastname: Hall
mesh_terms: D000077:Acetabulum / Q000002:abnormalities* / Q000000981:diagnostic imaging / Q000601:surgery; D000328:Adult; D005265:Femoral Neck Fractures / Q000000981:diagnostic imaging / Q000209:etiology* / Q000601:surgery; D005500:Follow-Up Studies; D005593:Fracture Fixation, Internal / Q000379:methods; D017102:Fracture Healing / Q000502:physiology; D006801:Humans; D008297:Male; D008382:Marfan Syndrome / Q000150:complications* / Q000000981:diagnostic imaging; D011859:Radiography; D016059:Range of Motion, Articular