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Scoliosis Surgery

By Editorial Team (2)
January 31, 2022

Scoliosis is a condition in which the spine curves in a sideways direction. Some curving of the spine is normal, but if the curves are too exaggerated, the condition can cause pain and other complications.

Scoliosis usually occurs near the time of puberty, when a child is growing rapidly. It can be caused by other medical problems such as cerebral palsy and muscular dystrophy, but in most cases, the reason for the excessive curvature is not known.

Reasons for Surgery

There are various reasons for treating scoliosis. Sometimes scoliosis can cause back pain, and appearance may also be a concern. If the curvature is severe, the child’s breathing may be affected. Braces are usually tried before surgery is considered, to see if they are effective in keeping the curvature from progressing.

Once the child’s bones stop growing, the progression of the curve may also stop. For this reason, surgery is often delayed until after skeletal growth is complete.

If your child’s spinal curve is very severe or is rapidly progressing, he or she may need scoliosis surgery. Surgery is typically recommended in the following cases:

  • For people whose bones are mature and their curve is greater than 45 degrees,
  • For children who are still growing and their curve is greater than 40 degrees (not all surgeons agree on this recommendation).

Risks of Surgery

Scoliosis surgery carries the risk of complications. Risks associated with the use of anesthesia include:

  • Allergic reactions to medications
  • Respiratory problems

Risks associated with any surgery include:

  • Bleeding
  • Blood clots in the lower extremities that can travel to the lungs
  • Stroke or heart attack during the operation
  • Infection, including in the bladder, kidney or lungs (pneumonia)

Possible complications from scoliosis surgery include:

  • Blood loss requiring a blood transfusion
  • Pancreatitis or gallstones
  • Infection
  • Obstruction of the intestines
  • Nerve damage that causes weakness or paralysis of the muscles
  • Breathing problems (Respiratory function may not return to normal until 1 to 2 months following the procedure)

Complications that may develop long-term include:

  • Failure of the fusion to heal. This may lead to pseudarthrosis, a painful disorder in which a false joint develops at the fusion site.
  • Immobility at the fusion site. This causes stress to the rest of the spine, which may lead to pain and disc degeneration.
  • The instrumentation may move slightly. This can cause some discomfort
  • New problems may develop in the spine, especially in children whose spines have not fully matured prior to scoliosis surgery

Surgical Procedures

Your surgeon will recommend the scoliosis surgery that will best address your child’s condition. Sometimes a combination of procedures will produce the best results. Surgeries for scoliosis sometimes include:

– Spinal fusion: this is the operation done most often for scoliosis

– Thoracoplasty: this involves a rib removal and resection

– Osteotomies: this is a surgery in which bone is removed

– Hemivertebrae excision: this is the complete or partial removal of a vertebra.

Resection of the vertebral column

Surgical Approaches

Various surgical approaches might be used in scoliosis surgery.

Posterior approach (back):

In this approach, an incision is made on the back, over the midline of the spine. This is the surgical approach most often used for patients with scoliosis.

Anterior approach (front):

This approach is used for some thoracic and thoracic-lumbar curves. It is used during some scope procedures. It is used mainly to treat curves of the lower back.

Anterior-Posterior Approach (Front-Back)

In some cases, when there are two curves that are severe, an anterior-posterior procedure is performed. This is more complicated than a single posterior or anterior procedure. The operation may last up to ten hours and the typical hospital stay is from five days to two weeks. Recovery is generally longer than in a single approach operation.

Thoracoscopic surgery (VATS, or Video-Assisted Thoracoscopic Surgery)

This is a technique that applies to surgery on the thoracic spine. Not all patients who have thoracic curves are candidates for VATS because it requires that one lung is deflated for a short period of time. Some patients cannot tolerate this procedure. Some curvatures do not allow for spinal access using video-assisted thoracoscopic surgery.

Spinal Fusion

Scoliosis surgery and procedures completed for other spinal conditions often require the spine to be fused. Fusion is the process of joining vertebrae using bone grafts. The operation typically involves using stainless steel or titanium rods to correct the curvature. A combination of hooks, wire, and screws may be used to anchor one or more rods to the spine. Spinal fusion can take from three months up to one year to complete, biologically speaking. During that time, x-rays are used to evaluate the progress of the fusion.

The bone graft used in spinal fusion can come from areas of the body such as the hips, the iliac crest of the hip, the ribs or the spine. Taking a bone from the spine involves using local bone from the surgical site. Using local bone can lessen the patient’s pain because it eliminates the need for two surgical sites. Using an allograft or cadaver bone is also sometimes used and eliminates the need for a second surgical incision.

Protein bone graft substitutes may be used in some cases if a failure of fusion has occurred.

Patients who smoke should make an attempt to stop smoking several months before scoliosis surgery, as smoking interferes with fusion.

Important Scoliosis Spinal Fusion  Details

  • In adults whose bone density is adequate and in younger patients, bracing is not needed after scoliosis surgery.
  • In patients who have infantile or juvenile scoliosis who are less than 10 years old, posterior instrumentation, for example, using screws and rods, without fusion can be performed. In these cases, growing rods are inserted which straighten the curvature and allow for subsequent growth by lengthening the rods until the patient reaches skeletal maturity. Then a final fusion scoliosis surgery is performed.
  • The average stay in the hospital for most scoliosis surgeries ranges from four days to one week.

Osteotomies (Cutting and Removing Bone)

The word osteotomy refers to the cutting off and removal of bone. Osteotomies can be performed in the anterior or posterior portion of the spine. In scoliosis surgery, an osteotomy is completed to overcome the spinal deformity. They are used:

  • To treat children with large curves that cause deformities,
  • To treat adults who have rigid scoliosis curves,
  • To correct flatback,
  • In reconstructive surgeries of the spine.

Hemivertebrae Removal

Normal vertebrae are shaped like rectangles. Wedge-shaped vertebral bodies are called hemivertebrae. These form prior to birth and can result in kyphosis or scoliosis as a child grows. If kyphosis or scoliosis is progressive, or if the deformity causes the patient to be off-balance, the hemivertebra can be removed surgically. The procedure is usually performed using a posterior approach. Instrumentation such as rods and screws are implanted and the patient is usually placed in a brace for a few months postoperatively.

Vertebral Column Resection (VCR)

VCR involves the removal of one or more vertebrae by either a posterior approach or an anterior-posterior approach. In this scoliosis surgery, the thoracic parts of the ribs are removed that correspond to the resected area on both sides. The spinal column is detached, it is realigned and then re-connected using special spinal implants. This surgery is only done is the case of severe scoliosis. The risks of neurological injury are greater with this operation than with other procedures for correction of curvature.

You can find Pain Management Specialist near you using Temed Platform.

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