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Updated: Oct 19, 2025
Anterior Cervical Discectomy and Fusion in the Ovine Model
Published on: October 5, 2009
Biomechanics of Cervical Disc Arthroplasty Devices
Avinash G Patwardhan1, Robert M Havey2
1Musculoskeletal Biomechanics Laboratory, Edward Hines, Jr. VA Hospital, PO Box 5000, Hines, IL, 60141 USA; Department of Orthopedic Surgery and Rehabilitation, Loyola University Medical Center, 2160 South First Avenue, Maywood, IL 60153, USA.
Abstract:
Prosthesis design has an influence on the quantity and quality of postoperative motion after cervical disc arthroplasty. Prostheses with built-in resistance to angular and translational motion may have an advantage in restoring physiologic motion. The ability of a prosthesis to work with remaining bony and soft tissues to restore motion and load-sharing is a function of the kinematic degrees of freedom DOF, axis of rotation for a given motion, and device stiffness. How these characteristics allow the prosthesis to work with the patient's anatomy will determine whether the prosthesis is successful at restoring motion and mitigating adjacent-level stresses.
