title: [Treatment of borderline D/IIIa hip in newborn infants with the Graf-Mittelmeier abduction harness under close ultrasound control].
abstract: By retrospective analysis we investigated the treatment of "congenital" dysplasia of the hip (D/IIIa-type according to Graf) in newborn infants with the Graf-Mittelmeier-Aktivspreizhose (abduction harness).
  
  
  METHODS
  Between 1990 and 1997 twenty of twenty-three newborn infants with the IIIa-type were treated with the abduction harness by short-term ultrasound monitoring. We started the therapy in the first days of life, if we could identify a IIIa-type with an alpha-angle close to type D and with only minor tendency to decentration.
  
  
  RESULTS
  Eighteen infants (90%) treated by abduction harness developed "mature" hips. At the beginning the mean-value of the alpha-angle was 41 degrees. In the first weeks a rapid hip maturation was observed. The alpha-angles of the 25 and 75 percentiles crossed the 60 degrees at the control of twelve weeks. A modification of the treatment by cast application was necessary in one case only.
  
  
  CONCLUSIONS
  The results show, that dysplastic hip joints of newborn infants show a rapid maturation under therapy. Initial treatment with an abduction harness can improve decentered D/IIIa-hips.
authors.affiliation: Klinik und Poliklinik für Orthopädie, Rhein.-Fried.-Wilh.-Universität Bonn.
authors.forename: A
authors.initials: A
authors.lastname: Schmitz
authors.forename: U A
authors.initials: UA
authors.lastname: Wagner
authors.forename: O
authors.initials: O
authors.lastname: Schmitt
mesh_terms: D005260:Female; D005500:Follow-Up Studies; D006618:Hip Dislocation, Congenital / Q000000981:diagnostic imaging / Q000534:rehabilitation*; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D009989:Orthotic Devices; D012189:Retrospective Studies; D016896:Treatment Outcome; D014463:Ultrasonography