Conclusions The bone graft increases the biomechanical stability of the cervical spine except for DPA and the application of an anterior cervical plate significantly enhances it in three directions.

• 结论植骨可以提高两节段颈椎间盘切除后颈椎的稳定性，但不能提供后前方向稳定。前路钢板则可以明显提高3个方向的颈椎稳定性。