Abstract:

Objective   To evaluate the safety and short-term clinical curative effect of dynamic cervical implant(DCI) in the treatment of cervical spondylosis.   Methods    From September 2011 to May 2012, 11 patients were treated by anterior cervical decompression and DCI implantation. The amount of bleeding and surgical duration were counted, and surgical complication was recorded. The pain visual analogue score (VAS) and neck disability index (NDI) scale were adopted to evaluate pre- and post-operative symptoms, and Japanese orthopaedic association (JOA) score was adopted to evaluate pre- and post-operative nerve function.   Results    All 11 cases were followed up. The amount of bleeding and the surgical duration were (58.4±22.1) ml and (63.9±20.1) min respectively. Incision infection, implant loosening, dislocation or breakage, operation segment heterotopic ossification, cervical kyphosis and other complications were not found. The 3 months postoperative pain VAS and NDI score were significantly reduced when compared with the preoperative one (P<0.05). The last follow-up JOA score had significantly increased compared with the preoperative one and  the one 3 months after the surgery (P<0.05).  Conclusion  Anterior cervical decompression and DCI implantation in the treatment of cervical spondylosis is safe and effective in Pain relif. recovery of neurological function, and the short-term clinical curative effect is satisfactory.

Key words: Anterior decompression, Cervical spondylosis, Dynamic cervical implant, Nonfusion technique