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Upgrades to the current standard of care process may provide useful spine motion analysis results. The KineGraph VMA is designed to standardize and automate each of the basic steps of the spine motion analysis process. These steps are intended to address the limits of end-range x-rays: without standardization measurements can be unreliable and do not capture the spine in motion.
(View KineGraph VMA: The Spine in Motion video.)


1 Patient Bending 2 Image Acquistion 3 Image Analysis
End-range X-rays Patient bends spine to maximum voluntary bending angle—flexion and extension; left and right Plain x-rays taken at the extremes of motion—2 films in each plane Relative motion between the vertebrae measured manually
KineGraph VMA Powered Motion Normalizer™ devices assist patients through controlled spine bending Video fluoroscopy captures hundreds of frames at standardized spine bending angles Automated image analysis software finds relative motion of the vertebrae for each frame
KineGraph VMA intended advantage Controlled movement means more reliable measurement1,2 Captures spine motion, thus a true functional test Automation reduces observer-related variability2,3,4

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Ortho Kinematic Solution - KineGraph VMA

  1. Dvorak J, Panjabi MM, Chang DG, Theiler R, Grob D: 1991. Functional radiographic diagnosis of the lumbar spine: flexion-extension and lateral bending. Spine 1991;16:562-571
  2. Wong, KWM et al. Continuous Dynamic Spinal Motion Analysis. Spine 2006; 31(4):414-419
  3. Wong, KWM, et al. The Flexion/Extension Profile of 100 Healthy Volunteers. Spine 2004; 29(15):1636-1641
  4. Reitman, et. al. Intervertebral Motion Between Flexion and Extension in Asymptomatic Individuals. Spine 2004;29(24):2832-2843

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CAUTION: Investigational device, limited by federal (United States) law to investigational use.

Pilot studies suggest this device has the potential to detect an array of spine motion dysfunctions, assess kinematics, and track adjacent level disease; Ortho Kinematics, Inc. is currently conducting a multi-center clinical trial to evaluate and further assess these potential capabilities.