Clinical and radiographic assessment of a modular cementless ingrowth femoral stem system for revision hip arthroplasty

William L. Walter*, William K. Walter, Bernard Zicat

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

25 Citations (Scopus)

Abstract

This article presents 6-year mean (2-12-year) clinical and radiographic follow-up of 62 proximally porous-coated modular S-ROM femoral revisions. These patients come from 106 consecutive cases in 97 patients performed by one surgeon between 1987 and 1992 without structural allograft (femoral bone loss was Paprosky types 1-3B). In the 99 cases with known outcome, there were 7 postoperative complications: 2 dislocations (2%), 2 deep infections (2%), 2 periprosthetic femoral fractures (2%), and 1 transient sciatic nerve palsy (1%).There was only 1 revision of the index surgery for a problem related to the stem (dislocation). Of the 62 stems, 59 (95%) with complete follow-up were ingrown, 2 (3%) were loose, and 1 had stable fibrous fixation. This represents a mechanical failure rate of 5%. Stems greater than 16 mm in diameter were more likely to show stress shielding (P = .009) and not to be ingrown (P = .0006).

Original languageEnglish
Pages (from-to)172-178
Number of pages7
JournalJournal of Arthroplasty
Volume21
Issue number2
DOIs
Publication statusPublished - Feb 2006
Externally publishedYes

Keywords

  • Cementless
  • Hip arthroplasty
  • Revision
  • Stress shielding

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