Biomechanics of the SB Charité lumbar intervertebral disc endoprosthesis.
The SB Charité intervertebral disc prostheses consist of two metal end-plates and an interposed polyethylene slide core. These were subjected to static and dynamic testing in a servohydraulic test rig. When embedded in polypropylene, the prostheses were found to function adequately under a high static load, and under a lighter dynamic load for a long time. When tested in a cadaveric vertebral segment, a large end-plate surface area proved to be of critical importance in preventing collapse of the prosthesis into the vertebral body.
Büttner-Janz
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Humboldt-Universität zu Berlin School of Medicine (Charité), German Democratic Republic.
Schellnack
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Zippel
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D001696:Biomechanical Phenomena; D006801:Humans; D007403:Intervertebral Disc; D019736:Prostheses and Implants; D011474:Prosthesis Design