title: [Arthroplasty for osteoarthritis secondary to hip dysplasia: Problem-oriented treatment strategies].
abstract: BACKGROUND
  Because of anatomical variations total hip arthroplasty (THA) can be demanding in patients with osteoarthritis secondary to hip dysplasia.
  
  
  OBJECTIVE
  Depending on the degree of bony deformation, hip dislocation and soft tissue alteration numerous treatment strategies are available. This review describes current approaches that address frequent deformities.
  
  
  METHODS
  Review of relevant clinical studies, meta-analyses, and presentation of our own approach.
  
  
  RESULTS
  Pre-operative planning (based on a thorough clinical and radiographic examination) is essential. Acetabular reconstruction close to the primary acetabulum should always be intended. Roof augmentation and/or cup medialization can support stable bony implant fixation. Subtrochanteric shortening osteotomy of the femur is a demanding but reliable technique that avoids nerve damage in cases where inappropriate lengthening would be necessary (i.e., high riding dislocation).
  
  
  CONCLUSIONS
  Although the post-operative complication rate is elevated after THA for dysplastic hips compared with primary osteoarthritis, the overall functional results and implant survival are comparable.
authors: UniversitätsCentrum für Orthopädie & Unfallchirurgie, Universitätsklinikum Carl Gustav Carus an der Technischen Universität Dresden, Fetscherstrasse 74, 01307, Dresden, Deutschland, klaus-peter.guenther@uniklinikum-dresden.de.
authors: K P
authors: KP
authors: Günther
authors: M
authors: M
authors: Stiehler
authors: J
authors: J
authors: Goronzy
authors: W
authors: W
authors: Schneiders
authors: A
authors: A
authors: Hartmann
mesh_terms: D019644:Arthroplasty, Replacement, Hip / Q000379:methods* / Q000706:statistics & numerical data; D019317:Evidence-Based Medicine; D006617:Hip Dislocation / Q000150:complications* / Q000453:epidemiology / Q000628:therapy*; D006801:Humans; D015207:Osteoarthritis, Hip / Q000453:epidemiology / Q000209:etiology* / Q000628:therapy*; D011183:Postoperative Complications / Q000453:epidemiology / Q000209:etiology / Q000517:prevention & control*; D015995:Prevalence; D012307:Risk Factors; D016896:Treatment Outcome