Hounsfield units as a tool for the evaluation of bone demineralization due to exoprosthesis use


  • Juan Fernando Ramírez Patiño National University of Colombia
  • Jésica Andrea Isaza National University of Colombia
  • Isabela Mariaka National University of Colombia
  • Jaime Andrés Vélez Zea University of Antioquia




femur, transfemoral amputee, mineral density, stress shielding


A comparison between the healthy bone and the amputated bone of twenty unilateral transfemoral amputees was done by generating three Hounsfiled Unit (HU) histograms at different parts of the femur (femoral head neck, metaphysis and diaphysis), based on images obtained by Computer Axial Tomography. The results show a significant statistical difference (p-value<0.05) of HU, which is reflected by the bone mineral density between the bones of amputated and healthy limb. These differences demonstrate that the exoprosthesis use, generates bone demineralization which is also related with stress shielding phenomenon. 

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Author Biographies

Juan Fernando Ramírez Patiño, National University of Colombia

Mines Faculty.

Jésica Andrea Isaza, National University of Colombia

Mines Faculty.

Isabela Mariaka, National University of Colombia

Mines Faculty.

Jaime Andrés Vélez Zea, University of Antioquia

Engineering Faculty.


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How to Cite

Ramírez Patiño, J. F., Isaza, J. A., Mariaka, I., & Vélez Zea, J. A. (2013). Hounsfield units as a tool for the evaluation of bone demineralization due to exoprosthesis use. Revista Facultad De Ingeniería Universidad De Antioquia, (66), 159–167. https://doi.org/10.17533/udea.redin.15232

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