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Laminectomy with drainage of intramedullary cyst/syrinx; to subarachnoid space

CPT4 code

Name of the Procedure:

Laminectomy with drainage of intramedullary cyst/syrinx to subarachnoid space

Summary

A laminectomy with drainage of an intramedullary cyst or syrinx involves removing a portion of the vertebral bone (lamina) to access the spine and drain a fluid-filled cavity (syrinx or cyst) into the subarachnoid space, the area around the spinal cord that contains cerebrospinal fluid.

Purpose

Medical Condition: This procedure addresses conditions such as syringomyelia or other causes of intramedullary spinal cysts. Goals: The primary goals are to relieve pressure on the spinal cord, reduce symptoms like pain, numbness, and weakness, and prevent further neurological damage.

Indications

Symptoms or Conditions:

  • Chronic pain
  • Numbness or tingling
  • Muscle weakness
  • Difficulty with coordination and balance Patient Criteria:
  • Diagnosed with a syrinx or intramedullary cyst
  • Symptoms not managed by conservative treatments

Preparation

Pre-procedure Instructions:

  • Fasting typically required 8-12 hours before surgery
  • Adjustments to medications, especially blood thinners Diagnostic Tests:
  • MRI or CT scans to assess the cyst
  • Blood tests, urine tests, and overall health assessment

Procedure Description

Steps:

  1. Patient is positioned face down on the operating table.
  2. General anesthesia is administered to ensure the patient is asleep and pain-free.
  3. A small incision is made over the affected area of the spine.
  4. The lamina (part of the vertebra) is removed to create a window to access the spinal cord.
  5. The cyst or syrinx is identified and carefully drained into the subarachnoid space.
  6. The incision is closed with sutures or staples. Tools and Equipment:
    • Scalpel, retractors, suction devices, microscopes
    • Advanced imaging technologies for precision Anesthesia:
    • General anesthesia

Duration

Typically lasts between 2 to 4 hours, depending on the complexity of the case.

Setting

Performed in a hospital's operating room or a specialized surgical center.

Personnel

  • Neurosurgeon or orthopedic spine surgeon
  • Anesthesiologist
  • Surgical nurses and technicians

Risks and Complications

Common Risks:

  • Infection
  • Bleeding
  • Temporary pain increase Rare but Serious Complications:
  • Spinal fluid leak
  • Nerve damage
  • Persistent or worsened symptoms

Benefits

Expected Benefits:

  • Reduction in pain and other symptoms
  • Improved neurological function
  • Prevention of further spinal cord damage Timing:
  • Benefits are typically noticed shortly after the recovery period.

Recovery

Post-procedure Care:

  • Pain management with medications
  • Physical therapy may be recommended Recovery Time:
  • Initial hospital stay of 2-5 days
  • Full recovery in several weeks to a few months Restrictions:
  • Limitations on heavy lifting and strenuous activities initially
  • Follow-up appointments for monitoring progress

Alternatives

Other Treatment Options:

  • Medication management
  • Physical therapy
  • Less invasive surgical options, such as shunting Pros and Cons:
  • Medications and physical therapy may not provide long-term relief but are less invasive.
  • Shunting is less invasive but may not be suitable for all types of cysts/syrinxes.

Patient Experience

During Procedure:

  • The patient will be under general anesthesia and will not feel anything. After Procedure:
  • Pain and discomfort at the incision site, managed with medications
  • Gradual improvement in symptoms over weeks to months
  • Regular follow-up to ensure successful recovery

Medical Policies and Guidelines for Laminectomy with drainage of intramedullary cyst/syrinx; to subarachnoid space

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