A new method based on contact surface profilometry for quantitative measurement of resorbed bone volume

Year: 2005

Authors: Fusi F., Mercatelli L., Basile V., Pucci M., Siano S., Bernabei P., Monici M.

Autors Affiliation: Istituto Nazionale di Ottica Apllicata, Largo E. Fermi 6, 50125 Firenze, Italy;
Dept. of Clinical Physiopathology, Medical Physic. Sect., Universituy of Florence, Viale Pieraccini 6, 50125 Florence Italy;
Inst. of Applied Physics Nello Carrara CNR, Via Madonna del Piano, 50019 Sesto Fiorentino Firenze, Italy;
Haematology Divison, Careggi Hospital, Viale Morgagni 45, 50134 Firenze, Italy;
Center of Excellence in Optronics, Largo E. Fermi 6, 50125 Firenze, Italy

Abstract: Bone is a dynamic tissue.Its continuous remodeling depends on the balance between bone formation and bone resorption. These two processes are carried out by specialized cells called osteoblast and osteoclast respectively. The osteoclastic bone resorption consists in degradation of the mineral and collagen components of bone.
The study of bone turnover requires accurate assessment of osteoclastic bone resorption, that becomes even more important in pathologic bone loss due to the uncoupling between bone formation and bone resorption. Osteoclastic activity is difficult to measure. Many techniques, generally based on the detection of resorbing lacunae (pits) due to bone degradation, allow to estimate bone resorption, but none of them quantitatively and directly measures the volume of resorbed bone.
We propose a reliable and relatively simple method, based on contact surface profilometry, to evaluate directly and quantitatively the volume of resorbed bone. The method has the following advantages:
i. to perform a comparison of the same bone surface before and after the exposure to the osteoclastic activity;
ii. to enhance the sensitivity by utilization of bone slices shaped and plished in order to concentrate the cell activity in a controlled area.

Journal/Review: PHYSICA MEDICA

Volume: 21 (1)      Pages from: 41  to: 46

KeyWords: Bone resorption; Surface profilometry; Collagen, accuracy; Bone defect; Bone mineral; Bone turnover; Cell activity; Contact surface profilometry; Evaluation; Ossification; Osteoblast; Osteoclast; Osteolysis; Quantitative analysis; Reliability; Surface property
DOI: 10.1016/S1120-1797(05)80018-3

Citations: 3
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