Abstract
This study compares the reproducibility of two classifications for trochanteric femur
fractures: the Jensen classification and the AO/ASIF classification. Furthermore we
evaluated the agreement on fracture stability, choice of osteosynthesis, fracture
reduction and the accuracy of implant positioning.
In order to calculate the inter-, and intra-observer variability 10 observers classified
50 trochanteric fractures.
The inter-observer agreement of the AO/ASIF classification and the Jensen classification
was κ0.40 and κ0.48. The kappa coefficient of the intra-observer reliability of the
AO/ASIF classification was κ0.43 and κ0.56 for the Jensen classification.
Preoperative agreement on fracture stability and type of implant showed kappa values
of κ0.39 and κ0.65. The postoperative agreement on choice of implant, fracture reduction
and position of the implant was κ0.17, κ0.29 and κ0.22, respectively.
Both classifications showed poor reproducibility. This study suggests that the definition
of stability of trochanteric fractures remains controversial, which possibly complicates
the choice of osteosynthesis.
Keywords
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Article info
Publication history
Accepted:
October 5,
2009
Identification
Copyright
© 2009 Elsevier Ltd. Published by Elsevier Inc. All rights reserved.
