Table I

Demographics and Crude Complication Rates After Total Hip Replacement With and Without Previous Hip Fusion

Demographic factorFusionNo fusion
Mean age, yr58.566.9*
Follow-up, yr2.52.5
Male sex, %6043
Diagnosis not osteoarthritis, %47.58.9
Comorbid conditions > 1, %02.7
Mean hospital volume, no./yr181136
Mean surgeon volume, no./yr7660
Mean length of hospital stay, d10.310.3
Complication present at index admission, %4510.9
Revision within 4 yr, %101.8*
Infection within 4 yr, %101.3§
Girdlestone procedure performed within 4 yr, %50.3§
Urinary tract infection at index admission, %02.1
Deep venous thrombosis within 3 mo of index admission, %02.2
  • Student’s t-test was used for continuous variables, the χ2 test for categorical variables (with continuity correction). Fisher’s exact test was used when 1 or more cells had fewer than 5 expected counts. Comparisons between patients who underwent hip fusion takedown and those who did not may be biased since no adjustment was made for other potentially confounding factors.

  • * p < 0.01,

  • p < 0.05,

  • p < 0.0001,

  • § p < 0.001