Abstract
The concept of accelerated degeneration of adjacent disc levels as a consequence of increased stress caused by inter body fusion of cervical spine is widely accepted. These phenomenon supports the hypothesis that reconstruction of an intervertebral disc after discectomy with functional disc prosthesis would offer benefit. Degeneration of an intervertebral disc involves progressive dehydration and fibrosis of the nucleus pulposus. These modifications induce loss of elasticity, loss of intervertebral height, formation of osseous spurs, cracking and bulging of the annulus fibrosus, and eventually, extrusion of nucleus tissue. Hence based on above findings the present study was planned for Assessment of Outcomes of Patients Undergoing Disc Preserving Functional Cervical Disc Surgery.
 The present study was planned in Department of Neurosurgery, SKMCH, Muzaffarpur, Bihar, India. Total 10 cases operated for cervical radiculopathy were enrolled in the present study. Diagnostic evaluation was performed by anterior posterior and lateral standard radiographs of the cervical spine and magnetic resonance imaging (MRI) evaluation of the cervical spine. All patients had follow up X-ray of the cervical spine anterior and posterior view with flexion and extension study, at 4 weeks and at subsequent follow up.
 The data generated from the present study concluded that the major symptoms experienced by the patients were neck and radicular pain. C6-7 cervical root level was affected in majority patients. Majority of the had an excellent surgical results. Post operative follow up X-ray after 6 months revealed adequate motion at the operated site.
 Keywords: Cervical Disc Surgery, Cervical radiculopathy, Disc preserving, Disc Herniation, etc.
Highlights
Anterior cervical discectomy (ACD) was described in the mid-20th century as a treatment for lateral cervical disc syndrome. [1, 2] This procedure involved removing the symptomatic disc from an anterior approach without placement of a bone graft
Total 10 cases operated for cervical radiculopathy were enrolled in the present study
C6-7 cervical root level was affected in majority patients
Summary
Anterior cervical discectomy (ACD) was described in the mid-20th century as a treatment for lateral cervical disc syndrome. [1, 2] This procedure involved removing the symptomatic disc from an anterior approach without placement of a bone graft. [1, 2] This procedure involved removing the symptomatic disc from an anterior approach without placement of a bone graft. [7] ACDF involves removing the symptomatic cervical disc with an added step of placing bone graft to encourage bony fusion of the upper and lower vertebral body. This added step has been argued to further encourage cervical fusion to maximize stability and maintain disc space height to decrease the likelihood of for aminal stenosis. This was largely modified to cervical plate technology after their introduction and application in the 1980s. As with the introduction of bone graft, the additional placement of hardware introduces hardware-related complications
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