Computerized templating in uncemented total hip arthroplasty to assess component fit and fill

Hugh J. Clarke, Riyaz H. Jinnah, Quentin G.N. Cox, Mark J. Curtis

Research output: Contribution to journalArticle

Abstract

The aim of the uncemented femoral component in total hip arthroplasty is to achieve a stable bone-prosthesis interface without the use of polymethyl methacrylate (PMMA). Maximal fill of the femoral canal by the prosthesis promotes initial stability and long-term optimal stress transfer to the bone. The percentage "fit and fill" of the proximal femur by three prostheses, the porous coated anatomic, anatomic medullary locking, and the Harris-Galante, was compared by use of a computerized templating model to assess preoperative radiographs of 20 patients. Results showed that overall percentage fit and fill was similar and satisfactory (>60%) in 17 of 20 patients. If a satisfactory fill was not achieved with one prosthesis, another prosthesis did not significantly improve fill. Lack of bony contact in the proximomedial femur was the most common deficiency noted.

Original languageEnglish (US)
Pages (from-to)235-239
Number of pages5
JournalThe Journal of Arthroplasty
Volume7
Issue number3
DOIs
StatePublished - Sep 1992

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Keywords

  • custom
  • fill
  • fit
  • template
  • total hip arthroplasty

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine

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