An observational study in Lumbar Spinal Stenosis, sponsored by Beijing Friendship Hospital. Completed at 1 site in China. Open to participants aged 50 Years to 80 Years. Per ClinicalTrials.gov, last updated 2025-07-02.
Sponsored by Beijing Friendship Hospital · Observational
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).
459 studies on the registry are indexed under Spinal Stenosis; 103 are open to participants now.
This study's enrollment of 120 is close to the median of 116 across 152 observational studies indexed under Spinal Stenosis.
Browse Spinal Stenosis studies →Beijing Friendship Hospital is the lead sponsor of 216 studies on the registry; 95 are open to participants now.
Counted across the registry records on this site, refreshed daily.
Patients with LSS undergoing UBE or UE decompression performed by two experienced spine surgeons at the same hospital will be recruited for the study.
Exclusion Criteria:
Patients with LSS undergoing UBE
Patients with LSS undergoing UE
Oswestry Disability Index (ODI)
0-100%, the higher the score, the more severe the lumbar spine dysfunction
Time frame: From enrollment to the end of follow-up at 1 year
Magnetic resonance imaging (MRI)
Enlargement ratio of the dural sac
Time frame: From enrollment to the follow-up at 2 weeks
Computed tomography (CT) scans
bony decompression range; preservation rate of the facet joint
Time frame: From enrollment to the end of follow-up at 2 weeks
Creatine kinase (CK)
Time frame: From enrollment to the end of follow-up at 2 weeks
Erythrocyte sedimentation rate (ESR)
Time frame: From enrollment to the follow-up at 2 weeks
Surgical complication
Adverse events will be recorded to assess the safety of decompression using UBE or UE for LSS.
Time frame: From enrollment to the end of follow-up at 1 year
VAS (visual analogue scale) for leg pain
0-10, the higher the score, the more severe the pain
Time frame: From enrollment to the end of follow-up at 1 year
VAS (visual analogue scale) for lower back pain
0-10, the higher the score, the more severe the pain
Time frame: From enrollment to the end of follow-up at 1 year
Japanese Orthopaedic Association (JOA) score
0-29, the higher the score, the better the lumbar spine function
Time frame: From enrollment to the end of follow-up at 1 year
Modified MacNab criteria
According to satisfaction, it is divided into four levels: excellent, good, acceptable, and poorexcellent, good, fair, and poor
Time frame: From enrollment to the end of follow-up at 1 year
Operation time
Time frame: Immediately after the surgery
Blood loss
Time frame: Immediately after the surgery
Postoperative hospital stays
Time frame: Immediately after the discharge
Age
Time frame: Baseline, pre-surgery
Gender
Time frame: Baseline, pre-surgery
Body mass index (BMI)
Time frame: Baseline, pre-surgery
Medical comorbidity
Time frame: Baseline, pre-surgery
Smoking status
Time frame: Baseline, pre-surgery
Alcohol status
Time frame: Baseline, pre-surgery
Symptoms duration
Time frame: Baseline, pre-surgery
Physical examination finding
Time frame: Baseline, pre-surgery
Previous spinal surgery
Time frame: Baseline, pre-surgery
Affected level
Time frame: Baseline, pre-surgery
Stenosis grade
Time frame: Baseline, pre-surgery
Physical-component summary score of the Medical Outcomes Study 36-Item Short-Form Health Survey (SF-36)
range, 0-100 points, with higher scores indicating better physical health-related quality of life
Time frame: From enrollment to the end of follow-up at 1 year
Plan to share: No
This study is completed, as verified in Apr 2025. You cannot join it, but the record below documents what was studied.
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Beijing Friendship Hospital