Long-term follow-up of clinical and radiological outcome after cervical laminectomy.

Purpose: To evaluate long-term clinical and radiological results of cervical laminectomy without adjuvant-instrumented fusion for degenerative spinal cord compression.
Methods: A retrospective follow-up study of patients in which clinical data (n = 207), questionnaires (n = 96) and fluoroscopy (n = 77) were reviewed.
Results: Postoperative perceived recovery was reported by 76 and 63 % of patients at 3 months and 9 years, respectively. Functional status remained unchanged. The incidence of kyphosis and segmental instability was 15 and 18 %, respectively, and occurred almost exclusively if preoperative lordosis was <20°. Neither kyphosis nor segmental instability correlated to perceived recovery and no predisposing variables were identified.
Conclusions: Cervical laminectomy without adjuvant-instrumented fusion should be considered as a treatment for compressive degenerative cervical myelopathy in patients with a lordotic cervical spine without congenital deformities. Additional reconstructive correction of the cervical spine is only proven appropriate in selected cases.