title: Mid-term results of Bernese periacetabular osteotomy for developmental dysplasia of hip in middle aged patients.
abstract: OBJECTIVE
  To address the question, compared to having hip replacement with latent revision, does Bernese periacetabular osteotomy (PAO) before primary hip replacement occupy a preferable treatment strategy for middle aged (aged 35-54 years) hip dysplasia patients? We assessed the mid-term functional outcome and survivorship of PAO in those patients.
  
  
  METHODS
  Forty-one hips in 36 patients at middle age at the time of surgery (mean age, 39.5 years; range, 35-47 years) were retrospectively identified out of a total PAO cohort of 315 patients. Eleven of the 41 PAO hips also underwent osteochondroplasty at the femoral head-neck junction. Radiographic parameters of lateral centre edge angle, anterior centre edge angle and hip joint medialisation were investigated using the Harris Hip Score (HHS).
  
  
  RESULTS
  The average follow-up was 5.1 years (range, two to ten years). Radiographic parameters postoperatively improved into the normal range, whereas no progression was found from preoperative Tonnis osteoarthritis score. Forty hips survived at the last follow-up, with HHS Score improved from 63.7 to 88.4. Compared to the sole PAO group, both postoperative alpha angle and range of joint motion improved in the PAO combined with osteochondroplasty group. However, no difference in HHS score was found.
  
  
  CONCLUSIONS
  Good survivorship and improved joint function were identified in middle-aged Chinese patients following PAO with or without osteochondroplasty. We prudently suggest PAO as an alternative strategy for treating DDH in those patients.
authors: Medical School, Department of Orthopaedics, Xinhua Hospital Affiliated to Shanghai Jiaotong University, Shanghai, China.
authors: Junfeng
authors: J
authors: Zhu
authors: Xiaodong
authors: X
authors: Chen
authors: Yiming
authors: Y
authors: Cui
authors: Chao
authors: C
authors: Shen
authors: Guiquan
authors: G
authors: Cai
mesh_terms: D000077:Acetabulum / Q000000981:diagnostic imaging / Q000601:surgery*; D000328:Adult; D019644:Arthroplasty, Replacement, Hip / Q000379:methods; D044466:Asian People; D002681:China; D015331:Cohort Studies; D005260:Female; D005500:Follow-Up Studies; D006618:Hip Dislocation, Congenital / Q000000981:diagnostic imaging / Q000503:physiopathology / Q000601:surgery*; D006621:Hip Joint / Q000000981:diagnostic imaging / Q000503:physiopathology / Q000601:surgery; D006801:Humans; D008297:Male; D008875:Middle Aged; D010027:Osteotomy / Q000379:methods*; D011859:Radiography; D016059:Range of Motion, Articular / Q000502:physiology; D012189:Retrospective Studies; D016896:Treatment Outcome
references: J Bone Joint Surg Br. 2002 May;84(4):556-60
references: 12043778
references: Int Orthop. 2009 Feb;33(1):71-5
references: 17999061
references: Clin Orthop Relat Res. 2011 Jan;469(1):237-43
references: 20458643
references: Clin Orthop Relat Res. 1999 Jun;(363):93-9
references: 10379309
references: Natl Vital Stat Rep. 2010 Mar 3;58(10):1-132
references: 20578408
references: Clin Orthop Relat Res. 2009 Sep;467(9):2228-34
references: 19421831
references: J Bone Joint Surg Am. 2011 Mar;93 Suppl 1:30-9
references: 21411684
references: J Orthop Traumatol. 2009 Dec;10(4):159-65
references: 19865795
references: J Arthroplasty. 2001 Feb;16(2):188-95
references: 11222892
references: Acta Orthop. 2009 Feb;80(1):14-9
references: 19234883
references: Acta Orthop. 2009 Aug;80(4):402-12
references: 19857178
references: J Bone Joint Surg Am. 2005 Aug;87(8):1746-51
references: 16085614
references: Iowa Orthop J. 2004;24:43-8
references: 15296205
references: Acta Orthop. 2006 Feb;77(1):57-70
references: 16534703
references: J Arthroplasty. 2008 Oct;23(7):960-3
references: 18534506
references: Zhonghua Liu Xing Bing Xue Za Zhi. 2011 Jul;32(7):693-6
references: 21933542
references: J Bone Joint Surg Am. 2010 Mar;92(3):639-44
references: 20194322
references: Int Orthop. 2009 Dec;33(6):1483-8
references: 18719916
references: Clin Orthop Relat Res. 1995 Oct;(319):168-77
references: 7554627
references: J Bone Joint Surg Br. 2005 Jul;87(7):1012-8
references: 15972923
references: J Bone Joint Surg Br. 2007 Jul;89(7):879-86
references: 17673579
references: Clin Orthop Relat Res. 1999 Jun;(363):9-20
references: 10379300
references: Int Orthop. 2008 Oct;32(5):611-7
references: 17579861
references: Clin Orthop Relat Res. 2008 Jul;466(7):1633-44
references: 18449617
references: Acta Orthop. 2010 Feb;81(1):42-52
references: 20180718
references: J Bone Joint Surg Am. 2011 Jul 20;93(14):1347-54
references: 21792502
references: Clin Orthop Relat Res. 2004 Jun;(423):118-22
references: 15232436