title: [Clinical observation of 15° face-changing acetabular cup in total hip replacement for the treatment of developmental dysplasia of hip].
abstract: OBJECTIVE
  To explore early clinical effect of acetabular cup in total hip replacement for the treatment of Crowe II developmental dysplasia of hip.
  
  
  METHODS
  Eighteen patients (18 hips) with Crowe type II developmental dysplasia of hip were treated with total hip replacement from September 2001 to July 2013. Among them,including 13 males and 5 females aged from 42 to 60 years old with an average of 47.6 years old; the courses of diseases ranged from 9 to 22 years with an average of 13.5 years. All the patients had hip joint pain, limb shortening and limited hip function before operation. Harris score of hip joint were used to evaluate recovery of function at 1 day and 12 months after operation. Prosthetic coverage of acetabular cup at 1 week after operation was observed by using radiography.
  
  
  RESULTS
  Eighteen patients (18 hips) were followed up from 12 to 24 months with an average 17 months. All incisions were healed at stage I. No deep vein thrombosis, hip dislocation, periprosthetic joint infection and prosthesis loosening were occurred. No revision surgery during follow-up period. Prosthetic coverage of acetabular cup was more than 80% at 1 week after operation. Harris score were increased from 42.67 ± 5.06 before operation to 94.79 ± 3.27 at 12 months after operation (t = -45.269, P < 0.001).
  
  
  CONCLUSIONS
  For type Crowe II developmental dysplasia of hip patients, 15° face-changing acetabular cups in THR could obtain higher actebular component coverage rate and satisfactory early clinical effects.
authors.forename: Wei-kun
authors.initials: WK
authors.lastname: Hou
authors.forename: Lin
authors.initials: L
authors.lastname: Liu
authors.forename: Chao
authors.initials: C
authors.lastname: Lu
authors.forename: Kan
authors.initials: K
authors.lastname: Peng
authors.forename: Zhi
authors.initials: Z
authors.lastname: Yang
authors.forename: Ke
authors.initials: K
authors.lastname: Xu
authors.forename: Peng
authors.initials: P
authors.lastname: Xu
mesh_terms: D000077:Acetabulum / Q000601:surgery; D000328:Adult; D019644:Arthroplasty, Replacement, Hip / Q000295:instrumentation*; D005260:Female; D005500:Follow-Up Studies; D006618:Hip Dislocation, Congenital / Q000601:surgery*; D006621:Hip Joint / Q000601:surgery; D006622:Hip Prosthesis; D006801:Humans; D008297:Male; D008875:Middle Aged