title: A concise minimum eight year follow-up of proximally porous-coated tapered titanium femoral stem in primary total hip arthroplasty.
abstract: OBJECTIVE
  Our goal was to assess clinical and radiographic outcomes using a second-generation circumferentially proximally porous-coated titanium alloy stem at a minimum of eight years of follow-up.
  
  
  METHODS
  Ninety-one hips (80 patients) with Fibre Metal Taper (FMT, Zimmer Inc, Warsaw, IN, USA) femoral stems implanted between May 1998 and April 2002 were followed prospectively and re-evaluated at a minimum of eight years postoperatively. The median patient age was 56 (range 34-78) years, with 40 women and 40 men. Radiographic data and clinical follow-up using Harris Hip Score (HHS) and EuroQol (EQ)-5D outcome measures were evaluated.
  
  
  RESULTS
  Mean follow-up was 9.61 (range 8-12.3) years. At the time of the most recent follow-up, the mean HHS was 85.8 (range 46-100) points, mean EQ-5D Weighted Health State Index was 0.76 (range 0.05-1.00), and mean EQ-5D Visual Analogue Score was 80 (range 24-100). All stems were biologically stable, with all hips having osseous ingrowth. One stem was revised due to early periprosthetic fracture with stem subsidence. No hip had diaphyseal osteolysis.
  
  
  CONCLUSIONS
  To our knowledge, the data presented here represent the longest clinical follow-up of this second-generation cementless, proximally porous-coated femoral stem. The stems were found to perform well clinically and radiographically beyond the first five years previously reported in the literature. Patients had high levels of satisfaction and function, and osseous fixation occurred reliably without evidence of distal osteolysis.
authors.affiliation: Department of Orthopaedic Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA. brbeecher@partners.org
authors.forename: Benjamin
authors.initials: B
authors.lastname: Beecher
authors.forename: Philip
authors.initials: P
authors.lastname: Glassner
authors.forename: Henrik
authors.initials: H
authors.lastname: Malchau
authors.forename: Young-Min
authors.initials: YM
authors.lastname: Kwon
mesh_terms: D000328:Adult; D000368:Aged; D019644:Arthroplasty, Replacement, Hip / Q000295:instrumentation* / Q000379:methods*; D005260:Female; D005500:Follow-Up Studies; D006621:Hip Joint / Q000000981:diagnostic imaging / Q000601:surgery; D006622:Hip Prosthesis; D006801:Humans; D015994:Incidence; D008297:Male; D008875:Middle Aged; D015207:Osteoarthritis, Hip / Q000601:surgery*; D010014:Osteolysis / Q000453:epidemiology; D017060:Patient Satisfaction; D016062:Porosity; D011446:Prospective Studies; D011859:Radiography; D012189:Retrospective Studies; D014025:Titanium; D016896:Treatment Outcome
chemical_list: D014025:Titanium