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J Med Eng Technol. 2008 Mar-Apr;32(2):156-61. doi: 10.1080/03091900701234390.

Customization of a generic 3D model of the distal femur using diagnostic radiographs.

Author information

  • 1Institute of Health and Biomedical Innovation, Queensland University of Technology, 60 Musk Avenue, Kelvin Grove Brisbane QLD 4059, Australia. b.schmutz@qut.edu.au

Abstract

A method for the customization of a generic 3D model of the distal femur is presented. The customization method involves two steps: acquisition of calibrated orthogonal planar radiographs; and linear scaling of the generic model based on the width of a subject's femoral condyles as measured on the planar radiographs. Planar radiographs of seven intact lower cadaver limbs were obtained. The customized generic models were validated by comparing their surface geometry with that of CT-reconstructed reference models. The overall mean error was 1.2 mm. The results demonstrate that uniform scaling as a first step in the customization process produced a base model of accuracy comparable to other models reported in the literature.

PMID:
18297506
[PubMed - indexed for MEDLINE]
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