title: Comparison of three approaches of Bernese periacetabular osteotomy.
abstract: BACKGROUND
  Developmental dysplasia of the hip is a common disease and treated with various surgical approaches. Improved ilioinguinal (I-I) approach, two-incision Smith-Peterson (TSP) approach, and modified Smith-Peterson (MSP) approach are three main approaches; however, they are rarely compared. The present study compared the operative time, blood loss, intraoperative and postoperative allogeneic blood transfusion, and postoperative complications of these three different approaches.
  
  
  OBJECTIVE
  Surgical approach does not influence the operation time, blood loss, and complications of periacetabular osteotomy.
  
  
  METHODS
  Level III. Case-control study.
  
  
  METHODS
  In a total of 101 hips of 95 cases, from February 2010 to July 2011, three different approaches of Bernese periacetabular osteotomy, I-I, TSP, and MSP, were conducted. The operation time, intraoperative bleeding, allogeneic blood transfusion, and early complications in different operation approaches were compared by a retrospective study when there were similar ages, genders, and lesions.
  
  
  RESULTS
  Among the three approaches, I-I had less operation time and more blood loss (P<0.05), TSP had less blood loss (P<0.05) but more complications, and MSP had less blood loss (P<0.05) and less complications.
  
  
  CONCLUSIONS
  The MSP approach is superior to the other two approaches in doing periacetabular osteotomy.
authors.affiliation: Division of Joint Surgery and Sport Medicine, Department of Orthopaedics, First Affiliated Hospital of Chinese PLA General Hospital, Beijing, People's Republic of China.
authors.forename: Dianzhong
authors.initials: D
authors.lastname: Luo
authors.affiliation: Division of Joint Surgery and Sport Medicine, Department of Orthopaedics, First Affiliated Hospital of Chinese PLA General Hospital, Beijing, People's Republic of China.
authors.forename: Hong
authors.initials: H
authors.lastname: Zhang
authors.affiliation: Division of Joint Surgery and Sport Medicine, Department of Orthopaedics, First Affiliated Hospital of Chinese PLA General Hospital, Beijing, People's Republic of China.
authors.forename: Weijia
authors.initials: W
authors.lastname: Zhang
keywords: complications; operation approaches; periacetabular osteotomy
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