Cervical spine surgery, an elective procedure, may be recommended by your doctor because other forms of treatment have been ineffective. When recommended, cervical spine surgery may be the only hope for pain and symptom relief from a cervical spine ailment. For some, making the decision about whether or not to proceed with surgery can be clouded with fear, anxiety and uncertainty. Understanding why the procedure is needed, what it is used to treat, how it is done and what the outcome may be can help in making the best possible choice.
Cervical Spine Surgery – What it is Used for and Why You May Need it
Cervical spine surgery can be used to treat nerve/spinal cord impingement and spinal instability. Nerve/spinal cord impingement is corrected with decompression surgery. Spinal instability is corrected with fusion surgery. In many cases, both procedures are required and both are generally done at the same time. Spinal instrumentation (the insertion of a small plate in between the discs) may also be used to help add more stability to the spine.
How the Procedure is Done
A surgeon can perform cervical spine surgery from either a posterior (the back of the neck) or an anterior (the front of the neck) position. In most cases, surgeons prefer using the anterior approach because it is easier to access the spine from this angle. Musculature preservation and normal alignment of the spine are also easier to accomplish through an anterior approach. There are, however, situations that may require a posterior approach or a posterior/anterior combination.
Anterior Cervical Discectomy and Fusion (ACDF)
An anterior cervical discectomy and fusion, or ACDF, is used to treat a herniated cervical disc. In this procedure, the surgeon approaches the damaged disc through the front of the neck and the cervical disc is removed. The purpose of this procedure is to relieve pressure on the spinal cord or root nerve. In turn, pain, tingling, numbness or weakness caused by the compression is alleviated. During this procedure, fusion is often used to help stabilize the cervical segments on either side of the damaged disc.
To gain access to the damaged disc, an incision will be made on the front of the neck and a small vestigial muscle will be cut. Because only one small muscle needs to be cut, most patients heal quickly from an ACDF procedure, but like all surgeries, there are still risks and complications.
The most common risks and complications associated with an ACDF procedure include reaction to anesthesia, nerve root damage, infection, an inadequate relief of symptoms, bone graft failure, speech problems, persistent swallowing, spinal cord damage, damage to the trachea or esophagus and difficulty swallowing for 2 to 5 days postoperative.
Anterior Cervical Corpectomy
When multi-level cervical stenosis, a condition in which multiple cervical structures are deteriorating, is present, an anterior cervical corpectomy may be used. In this procedure, the damaged vertebrae are removed, along with the discs at either end of each removed vertebrae. Fusion is almost always used with this procedure to restore proper alignment through reconstruction of the spinal column.
Like an ACDF, the procedure is done by approaching the neck from an anterior angle. The incision is generally larger than an ACDF incision and the posterior longitudinal ligament is generally removed to help gain access to the cervical canal and assist in removing all pressure on the spinal cord and nerve roots.
Because there are similarities between an ACDF and a corpectomy, some complications and risks associated with a corpectomy are similar to the risk and complications associated with an ACDF. However, a corpectomy is more difficult and extensive than an ACDF, and as a result, the chances of experiencing those risks is higher. These risks include nerve root damage, bleeding, graft dislodgement, damage to the trachea/esophagus, continued pain, infection and damage to the spinal cord.
Additionally, there are additional risks associated with a corpectomy. These risks include the possibility of quadriplegia and damage to the vertebral artery, which can lead to stroke or life-threatening bleeding. Risk for quadriplegia is somewhat reduced by the use of SSEPs, or Somatosensory Evoked Potentials. This a tool used to monitor the time it takes for signals to reach the brain. If the response time slows, this can indicate compromise of the spinal cord to the surgeon.
Posterior Cervical Decompression Surgery
When a large soft disc herniation on the side of (lateral to) the spinal cord is present, a surgeon may choose a posterior approach over an anterior approach. Unlike anterior approaches, in a posterior discectomy, the incision is made at the back of the neck. Para-spinal muscles are elevated off of the spine so that access may be gained to the cervical vertebrae and damaged disc. No muscles or tendons are cut during a posterior discectomy and a fusion procedure is not needed.
Lack of a fusion procedure does reduce the surgical risk, but there are some notable disadvantages as well, particularly the fact that a bone graft cannot be inserted if it is needed to alleviate pressure on the nerve root. The surgeon must weigh the potential advantages and disadvantages to decide which option might be best for you.
Just like all cervical spine surgeries, there are risks associated with a posterior cervical decompression surgery, but risks with this surgery are rare. The most common complications include nerve root damage, infection, continued pain, spinal cord damage, dural leak and recurrent disc herniation.

