Thigh pain in primary total hip arthroplasty: The effects of elastic moduli

Carlos Lavernia, Michele D'Apuzzo, Victor Hernandez, David Lee

Research output: Contribution to journalArticle

47 Scopus citations

Abstract

Thigh pain after uncemented total hip arthroplasty (THA) remains a controversial topic. Our objective was to assess the effect of material composition in the development of thigh pain after primary THA. A cohort of 241 primary THAs was followed for a minimum of 2 years. All patients received identically shaped tapered cementless femoral components; the first half received a Cr-Co-Mo implant and the other half an identical implant made of Ti-6Al-4V. There were no statistically significant preoperative differences in the 2 component groups except that the percentage of blacks in the Cr-Co-Mo group was larger than in the Ti-6Al-4V group (26% vs. 14%; P < .05). The overall 1- and 2-year incidence of thigh pain was 9.5% and 8.7%, respectively. Implant composition was unrelated to reported thigh pain 1 and 2 years postoperatively. However, patients receiving larger versus smaller stems irrespective of material composition were more likely to report thigh pain at year 1 (relative risk = 4.68; 95% confidence interval = 1.41, 15.50). Thigh pain reported at year 2 was also higher in patients with larger versus smaller implants; however, this difference was not statistically significant (RR = 1.73; 95% CI = 0.68, 4.43). Material composition of this tapered stem design is unrelated to the incidence of thigh pain.

Original languageEnglish
Pages (from-to)10-16
Number of pages7
JournalJournal of Arthroplasty
Volume19
Issue number7 SUPPL.
DOIs
StatePublished - Oct 1 2004

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Keywords

  • cementless total hip arthroplasty
  • stem composition
  • thigh pain

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine
  • Surgery

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