title: The long-term results of Lubinus interplanta hemiarthroplasty in 228 acute femoral neck fractures. A retrospective six-year follow-up.
abstract: OBJECTIVE
  We retrospectively studied survival of patients treated with Lubinus interplanta (IP) semiendoprosthesis in acute hip fracture.
  
  
  METHODS
  The long-term results of Lubinus interplanta (IP) hemiarthroplasty in 228 acute medial fractures of the femoral neck in 222 patients were reviewed.
  
  
  CONCLUSIONS
  The mean age of the patients was 80.3 years. The mean duration of post-operative follow-up was 6.3 years (range 5-8 years). There were 12 reoperations (5.3%), of which 8 were revisions (3.5%). Dislocation rate was 3.5%. Survival was 93% at three years and 88% at six years (Kaplan-Meier-survival analysis).
  
  
  CONCLUSIONS
  These results surpass those previously published after Thompson and Moore hemiarthroplasties. The Lubinus prosthesis has a greater CCD (caput,collum, diaphyse) angle and a longer stem compared to Thompson and Moore implants. The need for resection of calcar cortex is also limited. These biomechanical facts may explain the good long-term results of Lubinus hemiarthroplasty.
authors.affiliation: Department of Surgery, University of Turku, FIN - 20520 Turku, Finland. kajuis@utu.fi
authors.forename: K
authors.initials: K
authors.lastname: Isotalo
authors.forename: J
authors.initials: J
authors.lastname: Rantanen
authors.forename: V
authors.initials: V
authors.lastname: Aärimaa
authors.forename: E
authors.initials: E
authors.lastname: Gullichsen
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D019644:Arthroplasty, Replacement, Hip / Q000379:methods*; D005260:Female; D005265:Femoral Neck Fractures / Q000601:surgery*; D006622:Hip Prosthesis; D006801:Humans; D008297:Male; D008875:Middle Aged; D011474:Prosthesis Design; D012086:Reoperation; D012189:Retrospective Studies; D016896:Treatment Outcome