CORTICAL BONE MECHANICS TECHNOLOGY.
The CBMT™ Platform: Mechanical Bone Quality, Quantified Non-Invasively.
OsteoDx has developed Cortical Bone Mechanics Technology (CBMT™), a radiation-free, noninvasive dynamic three-point bending test measuring flexural rigidity and damping in humans to characterize bone mechanical properties, quality, and strength. [R1-R5]
CBMT was developed to translate vibration-based mechanical testing into practical bone health research and clinical study settings. The platform applies a controlled mechanical input at the forearm, captures the resulting frequency response, and uses a biomechanical model to derive quantitative measures of cortical bone mechanics.[R1-R4]
How CBMT™ Works
CBMT applies controlled, low-amplitude mechanical stimulation over the ulna and measures the resulting vibrational response. Force and acceleration data are analyzed as frequency response functions fitted to a mechanical model of the skin-bone system; outputs include bending stiffness, flexural rigidity, and damping-related measures. [R1, R2]
CBMT is designed to be:
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Non-invasive
Mechanical assessment through the skin, without needles, injections, or surgical procedures.[R1-R4] -
Free of ionizing radiation
Uses controlled mechanical stimulation and vibration sensing, not ionizing radiation.[R4] -
Low-force
Controlled mechanical input designed for patient comfort and reproducibility.[R1]
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Designed for repeat assessment
A quantitative platform intended to support follow-up measurement in research and clinical study settings.[R5]
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Efficient
Completed in <10 minutes.[R1-R4]
The result is an objective mechanical profile of cortical bone.[R1-R5]
MECHANICAL BONE QUALITY
What CBMT™ Quantifies
Bone damping
Why Cortical Bone Matters
Adult skeletal bone
mass
Cortical bone makes up roughly 80% of adult skeletal bone mass and forms the dense outer structure of long bones. [R7]
Central to long-bone mechanics
The cortical compartment is a major contributor to bending, torsional, and compressive resistance in long bones. [R7-R10]
Important with
aging
Age-related cortical thinning and porosity can degrade mechanical integrity, particularly at appendicular sites. [R8-R10]
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