Ten-year clinical and radiographic results of computer-assisted cervical pedicle screw fixation combined with laminoplasty

Abstract Objective Cervical pedicle screw (CPS) fixation is widely used for the treatment of cervical spinal instability from various causes; however, there are few reports on the long-term outcomes of this procedure. The present study evaluated the 10-year results of CPS fixation for cervical instability. Methods The medical records of 13 consecutive patients who underwent computer-guided CPS fixation for cervical instability were reviewed. The mean observation period was 153 months. Evaluated items included Japanese Orthopaedic Association (JOA) score and C2-7 lordotic angle before surgery and at 5 and 10 years afterwards. Visual analog scale (VAS) scores for neck pain and radiological evidence of adjacent segment degeneration (ASD) at 10 years of follow-up were also assessed. Results Mean JOA score significantly improved from 9.4 points before surgery to 13.2 points at 5 years after surgery (p  Conclusions At 10 years after CPS fixation, mean JOA score was improved without symptoms indicative of cervical myelopathy recurrence. Our long-term results confirm that computer-assisted CPS fixation is useful for treating cervical instability.