Acetabular dysplasia represents a structural pathomorphology associated with hip pain, instability, and osteoarthritis. The wide spectrum of dysplasia anatomically refers to a 3-dimensional volumetric- and surface area-based insufficiency in coverage and is classified based on the magnitude and location of undercoverage. Borderline dysplasia has been variably defined and leads to management challenges. In symptomatic dysplasia, treatment addresses coverage with periacetabular osteotomy. Concomitant simultaneous or staged hip arthroscopy has significant advantages to address intra-articular pathology. In nonarthritic individuals, there is evidence PAO alters the natural history of dysplasia and decreases the risk of hip arthritis and total hip arthroplasty.

Original languageEnglish (US)
Pages (from-to)271-288
Number of pages18
JournalClinics in Sports Medicine
Issue number2
StatePublished - Apr 2021


  • Acetabulum
  • Arthroscopy
  • Borderline
  • Dysplasia
  • Hip
  • Instability
  • Periacetabular osteotomy
  • Version
  • Acetabulum/surgery
  • Osteotomy
  • Arthralgia
  • Hip Dislocation/surgery
  • Humans
  • Male
  • Treatment Outcome
  • Adult
  • Female

ASJC Scopus subject areas

  • Physical Therapy, Sports Therapy and Rehabilitation
  • Orthopedics and Sports Medicine


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