Decompression and distraction-derotation arthrodesis for degenerative spondylolisthesis

Area of Science:

• Spine surgery
• Orthopedics
• Neurosurgery

Background:

• Degenerative spondylolisthesis stems from chronic disc degeneration and spinal instability.
• It causes low back pain and radiculopathy due to vertebral subluxation.
• The L4-L5 segment is a common site for this condition.

Purpose of the Study:

• To evaluate the efficacy of decompressive laminectomy and distraction arthrodesis using Harrington rods for L4-L5 degenerative spondylolisthesis.
• To assess the impact of this surgical approach on pain relief and functional recovery.

Main Methods:

• Twenty patients with L4-L5 degenerative spondylolisthesis underwent decompressive laminectomy and distraction arthrodesis with short parallel Harrington rods.
• Patients were mobilized immediately post-operation.
• Follow-up duration was a minimum of 2 years, averaging 31.6 months.

Main Results:

• Satisfactory outcomes were achieved in 17 out of 20 patients (85%).
• No intraoperative complications were reported.
• One patient experienced spondylolisthesis progression, and another had Harrington rod loosening.

Conclusions:

• The combined surgical technique effectively reduces spinal instability and associated low back pain.
• It helps decompress neural structures by restoring spinal canal anatomy.
• This approach offers a viable treatment option for degenerative spondylolisthesis with significant symptom relief.