Vertebroplasty
What is Vertebroplasty?
The spine is made up of bones called vertebrae that are linked
together. When these bones become weakened, one or more can break
and start to flatten out. This is known as a compression fracture.
There are many causes for weak bone. The most common cause is
osteoporosis, where the bone becomes soft from loss of calcium. When
osteoporosis becomes severe, the vertebrae can break very easily.
Something as simple as a sneeze can cause a fracture. Most fractures
heal with time, but some do not heal well. The fractures may
continue to be a source of pain and make the activities of daily
living like walking or using the bathroom difficult. Vertebroplasty
was developed to help these people. Bone cement is injected into the
vertebrae to strengthen it and also to decrease the pain.
What do I need to do before the Procedure?
You will need to consult with your doctor to see if you are a
candidate for vertebroplasty. You will also need some tests to
identify which vertebrae are affected and whether the procedure can
be performed safely and with a high degree of success. These tests
include x-rays, an MRI scan, and sometimes a CAT scan. If you are a
candidate for the procedure, you will have some blood tests done to
avoid problems with bleeding. The night before the procedure,
starting at midnight, do not eat or drink anything.
Take your usual medicines on the day of the procedure. Call your
doctor if you take insulin shots. Your doctor may change the insulin
dose for the day of the procedure. Do not take any pain medicine for
at least 4 hours before the procedure. The anesthesiologist will
give you medication to help you relax and feel comfortable during
the procedure.
What happens during the procedure?
The vertebroplasty is performed in a special x-ray room in the
Radiology department (x-ray department) by trained radiologists and
technologists. During the procedure, you will lie face down on a
table that can be moved in all directions. Above the table is a
fluoroscope that uses x-rays so that the radiologist can "see" what
he is doing. The anesthesiologist or radiologist will give
medication that will make you sleepy and relax you. The technologist
will thoroughly clean the skin over the back. Everyone in the room
will be wearing a cap and mask for your protection. The radiologist
will find the broken vertebra and numb the area with a medication
that may sting when injected. Once the area is numb, the radiologist
will place needles into the broken vertebra using x-rays to guide
him. You may feel pressure on your back. Contrast media (x-ray dye)
is then injected into the vertebra through the needles to make sure
they are in good position. When good needle position is confirmed,
cement is then injected until the vertebra has been filled. The
cement does two things. First, it stabilizes the fracture. Second,
the cement gets hot as it hardens; this heat is thought to destroy
the pain producing nerve endings in the vertebra. The needles are
then removed and the small needle holes are bandaged.
What can I expect after the procedure?
You will be taken to the recovery room and will stay in bed for 4
hours to let the bone cement fully harden. During this time you can
ask for pain medication if needed. Usually, you will go home the
same day and receive a prescription for pain medication. Remember
that this is a surgical procedure and you will likely have some
wound pain that will subside in four to seven days. The wounds
should be kept clean and dry for at least five days. You will
receive written instructions to follow at home.
What are the Risks?
Any invasive procedure may have complications. The radiologist
will discuss possible complications with you before the procedure.
One possible complication is allergy to the medicines or the
contrast media. The contrast media has an iodine base. Tell your
nurse or physician if you have had a reaction to other x-ray dyes,
iodine or any medications.
Cement is injected into the vertebra during the procedure.
Sometimes, the cement can leak outside the vertebra and press on
nerve roots or the spinal cord. In addition, it can migrate to the
lung. If these things happen, cement injection is stopped
immediately and usually there are no problems; however, in a small
percentage of cases these adverse events can lead to worsened pain,
paralysis, or require surgery to remove the cement.
Any procedure that breaks the skin can result in bleeding or
infection.
What about Exposure to x-rays?
Every precaution is taken to protect you from unneeded x-ray
exposure. If there is a chance that you are pregnant, tell your
doctor or the radiologist. The people involved in the test wear lead
aprons because they are exposed to x-rays daily.
If you have any questions about this procedure, please discuss them
with your nurse or physician. Feel free to ask any questions.
This procedure is performed by SDI Radiologists at St. Joseph's Hospital.
|