lumbar spinal stenosis
Conditions
Interventions
Group 1:precise decompression
Group 2:TESSYS
Sponsors
West China Hospital, Sichuan University
Eligibility
Sex/Gender
All
Inclusion criteria
Inclusion criteria: (1) manifested as single nerve root symptom, such as single side extremity pain, numb or weakness, with or without LBP; (2) with full preoperative and postoperative radiological information. The method of distinguishing stenotic zone has been described in previous study[8]. Stenosis in zone 1 was diagnosed by sagittal T2-weighted MRI scans through paracentral region: the anteroposterior distance less than 1 mm. Stenosis in zone 2 was diagnosed by axial bone window CT scans: the anteroposterior distance in lateral recess region less than 3 mm. The radiological diagnosis should be identical to clinical symptom. Preoperative blocking of the nerve root could be applied in some intractable cases; (3) with obvious symptom (preoperative leg pain Visual Analogue Score (VAS) score over 6) after over 3 months invalid conservative treatment; (4) To be informed consent for our study and agreed to accomplish all follow-up.
Exclusion criteria
Exclusion criteria: (1) have lumbar segmental instability indicated by preoperative lumbar flexion-extension X-Ray; (2) combined with lumbar central canal stenosis; (3) was diagnosed as pure lumbar disc herniation; (4) high-grade lumbar spondylolisthesis with multi-level spinal stenosis; (5) with high iliac crest, the peak of iliac crest exceed lower quarter of L4 vertebral body, which hindered puncture in L5/S1; (6) with surgical contraindication.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| VAS scores;macnab score;satisfactory rate; | — |
Countries
China
Contacts
Public ContactQingquan Kong
West China Hospital, Sichuan University
Outcome results
None listed