As a guest user you are not logged in or recognized by your IP address. You have
access to the Front Matter, Abstracts, Author Index, Subject Index and the full
text of Open Access publications.
Introduction: In adolescent idiopathic scoliosis patients, the vicious cycle hypothesis proposed by Dr. Stokes suggests, a lateral spinal curvature produces asymmetrical loading of the skeletally immature spine, which in turn causes asymmetrical growth and therefore progressive wedging deformity. Numerous studies have been done to evaluate the effect of sustained compression-tension loading on spinal growth. However, the previous study did not have independent control of torque and bending moments.
Objectives: The goals of this study were to: 1) design a torque device for application of controlled torque and bending moments to ox-tails, 2) examine the behavior of the ox-tail under the applied torque.
Materials and Methods: A torque device was developed with precision strain gages, and implanted in a fresh cut ox-tail (unknown age) with 9 segments. The device spanned 5 caudal vertebral bones (T4 to T9) and four discs. Various levels of torque were applied to the ox-tail with the torque in the range 38 in•lbf to 50 in•lbf.
Results: Our results reported that the axial forces stemmed from applied torques were associated with a coupling motion of bending and transversal rotation.
Conclusion and Significance: Our torque device was successfully controlled and applied to caudal vertebral bones. It will be helpful in monitoring the in-vivo torque on the caudal vertebrae growth.
This website uses cookies
We use cookies to provide you with the best possible experience. They also allow us to analyze user behavior in order to constantly improve the website for you. Info about the privacy policy of IOS Press.
This website uses cookies
We use cookies to provide you with the best possible experience. They also allow us to analyze user behavior in order to constantly improve the website for you. Info about the privacy policy of IOS Press.