[Interspinous decompression as treatment for lumbar spinal stenosis]

Area of Science:

• Orthopedic Surgery
• Neurosurgery
• Spinal Disorders

Context:

• Lumbar spinal stenosis (LSS) is a common condition causing neurogenic claudication.
• Degenerative changes can lead to spinal instability, complicating LSS treatment.
• Minimally invasive surgical options are sought for LSS, especially in high-risk patients.

Purpose:

• To evaluate the efficacy and safety of interspinous process distractors for treating lumbar spinal stenosis.
• To assess the suitability of these devices for patients with minor secondary instabilities.
• To determine the feasibility of using interspinous distractors in elderly patients with increased anesthetic risk.

Summary:

• Interspinous process distractors are effective for lumbar spinal stenosis and mild degenerative instabilities.
• The procedure is minimally invasive, time-efficient, and suitable for elderly patients with comorbidities.
• Revision or removal of these devices is straightforward in cases of failure.
• Implantation under local anesthesia has been reported, further enhancing patient suitability.
• A prospective randomized trial shows positive results up to two years postoperatively.

Impact:

• Interspinous distractors provide a viable, less invasive surgical alternative for LSS management.
• This approach may reduce surgical risks and recovery times, particularly in vulnerable patient populations.
• Further long-term studies are needed to fully establish the durability of this treatment.