title: Surgical treatment of two adolescent athletes with dislocated avulsion fracture of the anterior superior iliac spine (ASIS).
abstract: BACKGROUND
  Avulsion fractures of the anterior superior iliac spine are rare. Therefore, evidence-based treatment guidelines do not exist. The therapeutic options are either conservative treatment or surgical intervention. The decision depends on grade of dislocation, age of the patient, and his sportive demands and competitive requirements.
  
  
  METHODS
  We present the cases of two young athletes suffering from traumatic avulsion fractures of the anterior superior iliac spine. In both cases, the musculotendinous unit (sartorius muscle and tensor of the fascia lata) remained attached to the loose dislocated fragment. Both patients were treated by means of open reduction with a new surgical technique using suture anchors.
  
  
  RESULTS
  Both patients were pain-free 4 weeks after surgery and had full range of motion. They were able to return to their preoperative sportive activity levels 10 weeks after surgery. No complications were reported at final follow-up 18 months postoperatively.
  
  
  CONCLUSIONS
  Operative treatment of avulsion fracture of the ASIS using suture anchors shows excellent clinical outcome and a short convalescence period. The patients achieve their preinjury sportive levels within 3 months.
authors.affiliation: Department of Orthopaedic Sports Medicine, Klinikum Rechts der Isar, Technical University Munich, Ismaningerstr. 22, 81675, Munich, Germany.
authors.forename: Lukas
authors.initials: L
authors.lastname: Willinger
authors.affiliation: Department of Orthopaedic Sports Medicine, Klinikum Rechts der Isar, Technical University Munich, Ismaningerstr. 22, 81675, Munich, Germany.
authors.forename: Jakob E
authors.initials: JE
authors.lastname: Schanda
authors.affiliation: Department of Orthopaedic Sports Medicine, Klinikum Rechts der Isar, Technical University Munich, Ismaningerstr. 22, 81675, Munich, Germany.|Department of Orthopaedic Sports Medicine, Chirurgisches Klinikum München Süd, Am Isarkanal 30, 81379, Munich, Germany.
authors.forename: Stephan
authors.initials: S
authors.lastname: Lorenz
authors.affiliation: Department of Orthopaedic Sports Medicine, Klinikum Rechts der Isar, Technical University Munich, Ismaningerstr. 22, 81675, Munich, Germany. imhoff@tum.de.
authors.forename: Andreas B
authors.initials: AB
authors.lastname: Imhoff
authors.affiliation: Department of Orthopaedic Sports Medicine, Klinikum Rechts der Isar, Technical University Munich, Ismaningerstr. 22, 81675, Munich, Germany.|Orthopädisches Fachzentrum Weilheim, Deutenhausener Straße 4, 82363, Weilheim, Germany.
authors.forename: Stefan
authors.initials: S
authors.lastname: Buchmann
mesh_terms: D000293:Adolescent; D001265:Athletic Injuries / Q000175:diagnosis / Q000601:surgery*; D005593:Fracture Fixation, Internal / Q000379:methods*; D000071562:Fractures, Avulsion / Q000175:diagnosis / Q000601:surgery*; D050723:Fractures, Bone / Q000175:diagnosis / Q000601:surgery*; D006801:Humans; D007085:Ilium / Q000000981:diagnostic imaging / Q000293:injuries* / Q000601:surgery; D004204:Joint Dislocations / Q000175:diagnosis / Q000601:surgery*; D008297:Male; D010384:Pelvic Bones / Q000000981:diagnostic imaging / Q000293:injuries; D016059:Range of Motion, Articular; D053441:Suture Anchors; D016896:Treatment Outcome
keywords: Anterior superior iliac spine; Avulsion fracture; Surgical reduction; Suture anchor; Young athletes