Spinal Fusion

Spinal Fusion

What is Spinal Fusion?

Spinal fusion is the surgical technique of combining two or more vertebrae. A fusion of the vertebrae involves the insertion of secondary bone tissue obtained either from an autograft (tissues from your own body) or allograft (tissues from another person) to enhance the bone healing process.
The lumbar (lower back) region of the spine is more prone to spine fusion when compared to the other regions such as cervical (neck) and thoracic (mid-back) parts of the spine. Usually, spinal fusion is recommended for neurological problems or severe pain that have not responded to conservative treatment.

Indications for Lumbar Spinal Fusion

Various spinal conditions may be treated through lumbar spinal fusion such as: 

  • Spinal stenosis
  • Damaged disc
  • Spinal tumour
  • Fractures of the spine
  • Scoliosis and kyphosis (abnormal curvatures of the spine)

Spinal Fusion Procedure

  • Spinal fusion can be performed through different angles depending upon the specific advantages of each and the choice of your surgeon. It may involve interbody fusion where bone graft is placed in the space present between the two vertebrae.
  • Other techniques may also be employed for spinal fusion that involves the entire removal of the disc between the affected vertebrae. A specially designed device, made either from plastic or titanium, may be placed between the vertebrae. This helps in maintaining spine alignment and normal height of the disc. 
  • The fusion process is followed by fixation, which involves the fitting of metallic screws, rods, plates or cages to stabilize the vertebrae and accelerate bone fusion. After surgery, 6-12 months is the ideal time for complete fusion to take place. 

Complications of Spinal Fusion

The complications associated with spinal fusion include infection, nerve damage, blood clots or blood loss, bowel and bladder problems and problems associated with anaesthesia. The primary risk of spinal fusion surgery is the failure of fusion of vertebral bones, which may require additional surgery.

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