title: [Injury of the Obturator Internus Muscle--a Rare Differential Diagnosis in a Soccer Player].
abstract: BACKGROUND
  Lesions/irritations of the obturator internus muscle (OIM) are rare, several differential diagnoses are possible.
  
  
  METHODS
  This paper describes the case of an OIM injury in a professional football player.
  
  
  RESULTS
  On clinical examination, painful internal rotation of the hip joint was an indication for a lesion/irritation of the OIM. MRI was the procedure of choice for imaging. Movement analysis served to detect a functional malposition.
  
  
  CONCLUSIONS
  A short recovery time requires functional treatment as well as the use of orthopaedic aids to correct possible deformities.
authors.affiliation: Chirurgisch-Orthopädisches Zentrum Illingen, Illingen/Saar.
authors.forename: J
authors.initials: J
authors.lastname: Kelm
authors.affiliation: Sportwissenschaftliches Institut der Universität des Saarlandes, Saarbrücken.
authors.forename: O
authors.initials: O
authors.lastname: Ludwig
authors.affiliation: Klinik für Diagnostische und Interventionelle Radiologie, Universitätsklinikum des Saarlandes, Homburg/Saar.
authors.forename: G
authors.initials: G
authors.lastname: Schneider
authors.affiliation: Klinik für Unfall-, Hand- und Wiederherstellungschirurgie, Universitätsklinikum des Saarlandes, Homburg/Saar.
authors.forename: S
authors.initials: S
authors.lastname: Hopp
mesh_terms: D000328:Adult; D001265:Athletic Injuries / Q000175:diagnosis*; D003937:Diagnosis, Differential; D025981:Hip Injuries / Q000175:diagnosis*; D006801:Humans; D018482:Muscle, Skeletal / Q000293:injuries*; D010388:Pelvis / Q000293:injuries*; D035583:Rare Diseases; D012916:Soccer / Q000293:injuries*