Percutaneous Unilateral Biportal Endoscopy Versus Uniportal Endoscopy for Lumbar Spinal Stenosis: Study Protocol

Percutaneous Unilateral Biportal Endoscopy Versus Uniportal Endoscopy for Lumbar Spinal Stenosis: a Single-center, Prospective, Non-randomized Cohort Trial Protocol

A prospective study aimed to compare the efficacy and safety of Unilateral biportal endoscopic (UBE) technique and uniportal endoscopic (UE) technique for treating patients with lumbar spinal stenosis (LSS).

Inclusion Criteria:

• Age range: 50-80 years
• Diagnosed with LSS of 1-2 response levels
• The predominant manifestation is neurogenic intermittent claudication, and conservative treatment has been ineffective for at least 3 months
• Degenerative lumbar spondylolisthesis of less than I degree or without spine instability
• Patients agree to participate in the study and are willing to complete the follow-up

Exclusion Criteria:

• Isthmic lumbar spondylolisthesis or degenerative lumbar spondylolisthesis of greater than I degree
• Instability at the response level
• Prior surgical history at the response level
• Scoliosis with Cobb angle >20 degrees
• Other conditions affecting the lumbar spine (infection, tumor, fracture, neurological diseases, and others)
• Patients with medical disorders who are unable to tolerate surgery