Comparison of cervical disk implants and cervical disk fusion treatments in human cadaveric models.
Articulating cervical disk implants have been proposed as an alternative to disk fusion in the treatment of cervical disk disease. To examine the mechanical effect of articulating cervical disk implants (ACDI) versus simulated cervical disk fusion, a mechanical test device was constructed and cadaveric tests were carried out. While results show little effect on the pressures above and below the treatment level, the percent hysteretic behavior of the specimens trended to be higher for the ACDI, indicating that these implants retain more of the natural energy absorption capability of the cervical spine.
Davies
M A
MA
Mechanical Engineering & Engineering Science, University of North Carolina at Charlotte, University City Boulevard, Charlotte, NC 28223, USA. madavies@uncc.edu
Bryant
S C
SC
Larsen
S P
SP
Murrey
D B
DB
Nussman
D S
DS
Laxer
E B
EB
Darden
B V
BV
D000368:Aged; D002102:Cadaver; D019544:Equipment Failure Analysis; D006801:Humans; D066298:In Vitro Techniques; D007403:Intervertebral Disc / Q000503:physiopathology* / Q000601:surgery*; D007405:Intervertebral Disc Displacement / Q000503:physiopathology* / Q000601:surgery*; D007595:Joint Prosthesis; D008875:Middle Aged; D011312:Pressure; D011474:Prosthesis Design; D016059:Range of Motion, Articular; D013123:Spinal Fusion / Q000295:instrumentation*; D016896:Treatment Outcome; D016474:Weight-Bearing