Lumbar Stabilization with Interspinous Process Devices for Lumbar Spinal Canal Stenosis

Area of Science:

• Orthopedic Surgery
• Spinal Surgery
• Neurosurgery

Background:

• Lumbar spinal canal stenosis (LSCS) is a common condition causing pain and disability.
• Surgical intervention is often necessary for severe LSCS.
• Minimally invasive techniques are sought to improve outcomes and reduce risks.

Purpose of the Study:

• To evaluate the treatment outcomes of LSCS patients undergoing lumbar stabilization surgery.
• To assess the radiological effects of this surgery at least 1 year postoperatively.
• To determine the efficacy and safety of using a titanium alloy interspinous spacer.

Main Methods:

• Forty LSCS patients received lumbar stabilization with a titanium alloy interspinous spacer.
• Surgical outcomes were assessed using pain scales (Numerical Rating Scale), disability (Roland-Morris Disability Questionnaire), and functional scores (Japanese Orthopedic Association).
• Radiological evaluation included measurements of the dural sac area and surgical level angle in neutral and extended positions.

Main Results:

• Significant improvements in pain, disability, and function were observed at 6 and 12 months post-surgery.
• No significant change in dural sac area was noted.
• A marked decrease in the surgical level angle was observed, indicating successful stabilization.

Conclusions:

• Lumbar stabilization surgery with an interspinous spacer is effective for treating LSCS.
• The procedure offers radiological benefits, including improved spinal alignment.
• This minimally invasive approach avoids extensive decompression and can be performed under local anesthesia for high-risk patients.