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Comparative Study
. 1993 Mar;75(2):259-65.
doi: 10.1302/0301-620X.75B2.8444947.

Fracture and loosening of Charnley femoral stems. Comparison between first-generation and subsequent designs

D M Dall  1 , I D Learmonth, M I Solomon, A W Miles, J M Davenport
Affiliations
Comparative Study

Fracture and loosening of Charnley femoral stems. Comparison between first-generation and subsequent designs

D M Dall et al. J Bone Joint Surg Br. 1993 Mar.

Abstract

We report the results of a 4- to 17-year clinical and radiological follow-up of 264 Charnley first-generation stems in comparison with those of 402 second- and subsequent-generation stems. The incidence of fracture was 4.1% in first-generation stems and 0.5% in second- and subsequent-generation stems. The incidence of stem loosening requiring or likely to require revision was 3.1% in first-generation and 11.4% in second-generation stems. We believe that the increased loosening rate in second- and subsequent-generation stems is due to their larger cross-sectional area, which produces an increase in flexural stiffness.

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