U. Hedlundh et al., INFLUENCE OF SURGICAL APPROACH ON DISLOCATIONS AFTER CHARNLEY HIP-ARTHROPLASTY, The Journal of arthroplasty, 10(5), 1995, pp. 609-614
Dislocations occurring in 3,199 Charnley total hip arthroplasties in t
wo orthopaedic centers between 1979 and 1991 performed by either the t
ranstrochanteric or posterior approach were studied. The incidence of
dislocation within 2 years of surgery (2.8%), as well as the overall f
requency (3.4%), did not differ between the two centers. Regardless of
approach, there was a higher risk of dislocations for patients with r
heumatoid arthritis and nonhealed hip fractures than for patients with
osteoarthrosis. A logistic regression analysis, reflecting the differ
ences in preoperative hip diagnoses and sex, indicated that the disloc
ation rate was not influenced by the surgical approach. More early dis
locations were documented after the posterior approach, but without in
creases in the rates of recurrence or revision. Arthroplasties perform
ed by less experienced surgeons through the posterior approach resulte
d in more dislocations.