Normalized and proportionalized cemented femoral stem survivorship at 15 years

J Arthroplasty. 1999 Sep;14(6):708-13. doi: 10.1016/s0883-5403(99)90226-7.


We reviewed the clinical and radiographic results of a series of 215 consecutive hip arthroplasties in which a normalized, proportionalized, cemented femoral component was implanted. This component design may encourage more efficient force transmission from prosthesis to cement to bone and lessen hoop stresses and resultant interface failure. A total of 127 hips in 103 patients with a follow-up of 13 to 17 years (average, 14.8 years) were available for evaluation, which included survivorship analysis. An aseptic failure loosening rate of 3.9% at 15 years for this stem favorably compares with other reported series of first-generation and second-generation stems at similar follow-up. Excluding the 8 stems placed in varus, of which 3 required revision (failure rate, 37.5%), the series has a failure rate of 1.6%.

MeSH terms

  • Adult
  • Aged
  • Aged, 80 and over
  • Arthritis / surgery
  • Arthroplasty, Replacement, Hip
  • Female
  • Femur
  • Femur Head Necrosis / surgery
  • Hip Prosthesis*
  • Humans
  • Intraoperative Complications
  • Male
  • Middle Aged
  • Osteoarthritis, Hip / surgery
  • Postoperative Complications
  • Retrospective Studies