(Artificial Cervical Disk Replacement)
Your cervical spine is made up of the seven bones, called cervical vertebrae, stacked on top of each other in your neck area. The cervical disks are the cushions that lie between the cervical vertebrae and act as shock absorbers to allow your neck to move freely.
Your cervical spine also forms a protective tunnel for the upper part of your spinal cord to pass through. As your spinal cord passes through this tunnel, it sends out spinal nerves that pass through the openings between the cervical vertebrae. These spinal nerves supply your upper body with sensation and movement.
Cervical disk replacement surgery involves removing a diseased cervical disk and replacing it with an artificial disk. It is done when the space between your vertebrae has become too narrow and part of your vertebrae or your cervical disk is pressing on your spinal cord or spinal nerves, causing you pain, numbness, or weakness. When these symptoms do not respond to nonsurgical types of treatment, disk surgery may be recommended.
Using an artificial disk to replace your natural cervical disk is a new type of treatment that has recently been approved by the FDA. In traditional cervical disk surgery, the diseased disk is removed and the cervical vertebrae above and below the disk may be fused together. Disk replacement surgery may have the advantage of allowing more movement and creating less stress on your remaining vertebrae than traditional cervical disk surgery.
Reasons for the procedure
Loss of space between your cervical vertebrae from cervical disk degeneration, or wear and tear, is common. Cervical disks begin to collapse and bulge with age; this happens to most people by age 60. But doctors don’t know why some people have more symptoms from cervical disk degeneration than others.
Your symptoms may include:
Pain that travels down into your shoulders or into your arms
Weakness of your shoulders, arms, hands, or legs
"Pins and needles" or numbness in your arms
Risks of the procedure
Disk replacement surgery is a safe procedure, but all surgeries carry some risks. You will need to sign a consent form that explains the risks and benefits of the surgery.
Disk replacement is a fairly new type of surgical spine surgery with little information on possible long-term risks. You should discuss the risks and benefits of disk replacement surgery compared with more traditional types of cervical spine surgery with your surgeon.
Some potential risks of cervical spine surgery include:
Reactions to the anesthesia
Spinal fluid leak
Failure to relieve symptoms
Broken or loosened artificial disk
Need for further surgery
There may be other risks, depending on your specific medical condition. Be sure to discuss any concerns with your surgeon before the procedure.
Before the procedure
In the days before your surgery, tell your surgeon about any medications you take at home including herbal supplements and over-the-counter medications. You may be asked to stop taking aspirin or other medications that thin your blood and may increase bleeding.
Tell your surgeon if you or someone in your family has any history of reaction to general anesthesia.
If you smoke, you may be asked to stop smoking well before surgery and avoid smoking for a period of time after surgery.
Before surgery you will probably be given instructions on when to stop eating and drinking. It’s common to have nothing to eat or drink after midnight on the night before the procedure.
Ask your surgeon if you should take your regular medications with a small sip of water on the day of the procedure.
During the procedure
Just before the procedure starts you will have an intravenous line (IV) started so you can receive fluids and medications to make you relaxed and sleepy. This procedure is usually done under general anesthesia (you are asleep). Medication may be given through the IV to put you to sleep and a tube may be inserted in your throat to protect your airway and supplement your breathing. The actual procedure may last a few hours. This is what may happen once the procedure begins:
Monitors are placed to check your heart, blood pressure, and oxygen level.
The area of your neck where the incision will be made is cleaned with a special solution to kill germs on the skin.
A one- to two-inch incision (surgical cut) is made on the side or front of your neck.
The important structures of the neck are carefully moved to the side until the surgeon can see the bones of the vertebrae and the cervical disk.
The cervical disk that is being replaced is removed.
The artificial disk is placed into the empty disk space.
The incision is closed using absorbable sutures (stitches) under the skin. The skin is then carefully closed with sutures that minimize any scarring.
A small dressing is applied over the incision, a rigid or soft neck collar may be put on your neck, and you will be taken to the recovery area.
After the procedure
In the recovery area, you will be observed until you recover from the anesthesia. Pain after disk replacement surgery is normal and you may be given pain medication in the recovery area.
Most people will need to spend a day or two in the hospital. This is what may happen during your hospital stay:
Intravenous fluids may be continued until you can drink fluids well by mouth.
Once you are able to drink normally, you will be able to start eating your normal diet.
You’ll continue to take pain medication if you need it.
Your nurses will check your dressing and help you to get out of bed and go to the bathroom.
You may be given a support collar to wear in the hospital.
You will be encouraged to get out of bed and move around as soon as you are able to.
Recovery and rehabilitation at home may be a little different for each person, but in general, here’s what you might expect:
You may need to continue wearing a soft or rigid neck support.
You will be able to eat your normal diet.
You may need to return to your surgeon to have sutures removed.
You will gradually start returning to normal activities. You should ask your surgeon about any activity restrictions and when you can take a regular shower or bath.
You may start physical therapy after a few weeks.
You should be able to return to full activities by four to six weeks.
You should call your surgeon if you have any of these problems:
Bleeding, redness, swelling, or discharge from your incision site
Pain that does not respond to pain medication
Numbness or weakness
Voice change or hoarseness