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Failure of intertrochanteric fracture fixation with a dynamic hip screw in relation to pre-operative fracture stability and osteoporosis

Authors :
Weon-Yoo Kim
Jin-Young Kim
Jin-Il Park
Chang-Hwan Han
Source :
International Orthopaedics. 25:360-362
Publication Year :
2001
Publisher :
Springer Science and Business Media LLC, 2001.

Abstract

We have reviewed 178 intertrochanteric fractures treated by dynamic hip screw (DHS) fixation between March 1995 and December 1999 and followed for a minimum of 1 year. We used Singh's classification of the trabecular bone structure in the proximal femur as a measure of osteoporosis and also classified the fractures according to three different systems (Boyd-Griffin, Evans, AO). The postoperative radiographs were examined for loss of reduction, i.e. varus angulation >100, perforation of the femoral head, more than 20-mm extrusion of a lag screw or metal failure. We found 49 cases which showed radiographic failures. Two were stable fractures and 47 unstable fractures (Evans' classification). Unstable fractures with osteoporosis had a failure rate of more than 50%. In such cases DHS should not be the first choice for treatment.

Details

ISSN :
14325195 and 03412695
Volume :
25
Database :
OpenAIRE
Journal :
International Orthopaedics
Accession number :
edsair.doi.dedup.....f37c19970892f1802ae083246694735f
Full Text :
https://doi.org/10.1007/s002640100287