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Introduction
The procedure of oblique cervical corpectomy (OCC) illustrates
maintenance of a considerable part of the ventral and lateral sides of
the vertebral body.
1
Ozer AF et al.,
2
reported a procedure and termed
it “open window corpectomy” that is planned to eliminate the least
quantity of bone and attain adequate decompression; using a high-
speed drill and the surgical microscope, just the posterior surface
of the vertebral body is eliminated after proper microdiscectomies.
That leaves the ventral and the lateral parts of the vertebral body
untouched. That oblique corpectomy didn’t disturb the stability of the
cervical spine and needs no stabilization. Karalar T et al.,
3
assumed
an in vitro biomechanical investigation of multilevel OCC in sheep
and stated that the technique doesn’t cause instability of the spine.
That method offers a roomy anterolateral decompression of the spinal
canal and foramen at single or multiple levels, kyphotic spine isn’t
a contraindication if spinal stability is maintained, no demand for
instrumentation and/or bone grafting, and very good exposure via
lateral approach that is required in recurrent cases after prior anterior
surgery.
4
This study was done to evaluate the indications, efficiency,
safety, and complications of OCC for the treatment of selected types
of Spondylotic Cervical myeloradiculopathy.
Materials and methods
This is a prospective non-randomized clinical case series that
was done between January 2009 and February 2014. It enrolled 18
cases who subjected to OCC for treatment of cervical spondylotic
myeloradiculopathy. Cases were carefully chosen if they had
cervical myelopathy±radiculopathy established by clinical data and
CT scan and/or MRI with single or multiple level canal stenosis
mostly as anterolateral compression. Cases were excluded if they
had any instability or anterolisthesis >2millimeters between any
two contiguous vertebrae in dynamic views. Those criteria are like
inclusion criteria listed in a series done by Salvatore et al.
4
Also
cases with ossified posterior longitudinal ligament were not included
because of a basically another pathology, natural history, complication,
and results. Every case in this series was carefully assessed clinically
in the form of detailed history, complete neurological examination.
A complete functional assessment was done by the Nurick score
and a modified Japanese Orthopedic Association scale for cervical
myelopathy (mJOA), and the postoperative recovery was estimated
by the method proposed by Hirabayashi K et al.
5
Post-op score − pre-op score ÷ 17 (full score) − pre-op score×1005
Visual analogue scale (VAS) was used for assessment of patient’s
pre and postoperative neck and radicular pain. An important part in
the history focused on evaluation of the case by anesthesiologist to
identify fitness and prerequisites of surgery. Radiological Evaluation:
Plain X-rays of the cervical spine, including anteroposterior view,
Flexion-Extension lateral views, and the standard lateral view.
The canal dimensions and cord signal alterations are assessed by
computerized tomography and MRI of the cervical spine. Just a short
MOJ Orthop Rheumatol. 2018;10(4):298‒301. 298
© 2018 Elbadrawi et al. This is an open access article distributed under the terms of the Creative Commons Attribution License,
which permits unrestricted use, distribution, and build upon your work non-commercially.
Managing spondylotic cervical myeloradiculopathy
using oblique cervical corpectomy
Volume 10 Issue 4 - 2018
Ahmed Mohamed Elbadrawi, Tameem
Mohamed Elkhateeb
Department of Orthopedics and Spine Surgery, Faculty of
Medicine -Ain Shams University, Egypt
Correspondence: Tameem Mohamed Elkhateeb, Department
of Orthopedics and Spine Surgery, Faculty of Medicine -Ain
Shams University, Egypt, Email tameem_77@hotmail.com
Received: July 01, 2018 | Published: August 09, 2018
Abstract
Study design: A Prospective clinical case series study.
Objective: To evaluate the clinical and radiological outcomes of oblique
cervical corpectomy in the management of selected cases of Spondylotic Cervical
Myeloradiculopathy.
Methods: 18 patients with cervical spondylotic myeloradiculopathy were enrolled
in this study. Neurological function was graded by modified Japanese Orthopedic
Association scale, and the recovery rate was calculated. Both local symptoms and
radicular pain were evaluated using Visual Analog Scale. The minimum follow-up
period was 24months.
Results: 12 males and 6 females with a mean age of 52years underwent oblique cervical
corpectomy with mean operative duration 172minutes. Mean Blood loss was 320ml.
Oblique corpectomy was done at a single level in 10 patients, two levels in 6 patients
and three levels in 2 patients. There was a statistically significant improvement in both
the mJOA scale and VAS for radicular symptoms. Postoperatively spine curvature in
most of the cases remained unchanged. The development of straightening or kyphosis
of the spine was not correlated with neurological weakness or worsening of clinical
improvement. One case had intraoperative dural tear, three cases had postoperative
Horner’s syndrome that is temporary in two cases and persists in one.
Conclusion: Oblique corpectomy is a sound alternative to conventional central
corpectomy and fusion in selected cases. By avoiding the use of implants and fusion,
the procedure is cost effective with no fusion-related complications but is technically
demanding.
Keywords: cervical myeloradiculopathy, cervical spine, oblique cervical corpectomy
MOJ Orthopedics & Rheumatology
Research Article
Open Access