Clinical Correlation of Change in Sagittal Parameters after Anterior Cervical Microdiscectomy

Abstract

Objective: Cervical radiculopathy is the syndrome of pain and / or sensorimotor deficit caused by compression of the cervical nerve root. Symptoms of cervical radiculopathy in the upper limb are described as pain, numbness, or weakness. Conservative treatment is recommended initially for degenerative cervical radiculopathy. Surgical treatment is recommended in cases where progressive loss of muscle strength does not respond to conservative therapy. Many radiographic parameters are used to define the sagittal alignment of the cervical spine. This variation contrasts with the assessment of caudal spine segments where there are more established guides for measuring deformity angles. The aim of this study is to evaluate the effect of anterior cervical discectomy and fusion, which are widely used in spinal surgery practice, on cervical sagittal alignment.Methods: We retrospectively evaluated 33 patients who were operated with anterior cervical discectomy and fusion technique with the diagnosis of single level degenerative cervical disc hernia after an average of 3 months of follow-up period. For radiological evaluation, we analyzed the C2-C7 lordosis angles, the anterior and posterior disc heights at the operating level on lateral scoliosis radiographs, preoperatively and at 3rd month postoperatively. Japanese Orthopedic Association scores and visual analog scale scores were examined to evaluate clinical results.Results: A statistically significant difference was found between the preoperative radiological sagittal parameters and the postoperative 3rd month (p = 0.001). When the clinical correlation of the findings was examined, a statistically significant difference was found in the Japanese Orthopedic Association scores and visual analog scale scores of the patients measured preoperatively versus 3 months postoperatively (p < 0.001).Conclusion: Radiological and clinical parameters improve significantly in patients after single level anterior cervical discectomy surgery.