The spine journal : official journal of the North American Spine Society
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Randomized Controlled Trial Multicenter Study
Effect of intervertebral disc height on postoperative motion and clinical outcomes after Prodisc-C cervical disc replacement.
Cervical total disc replacement (TDR) is an emerging technology. However, the factors that influence postoperative range of motion (ROM) and patient satisfaction are not fully understood. ⋯ Patients with greater disc collapse of less than 4mm preoperative disc height benefit more in ROM after TDR. The optimal postoperative disc height range to maximize ROM is between 5 and 7mm. This optimal range did not translate into better clinical outcome at 2-year follow-up.