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Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: sciatica or neurogenic claudication with or without paresis, back pain maximum 30/100 on the visual analogue scale (VAS), conservative therapy exhausted or no longer indicated due to the symptoms,one or two segmental central stenosis caused by facet hypertrophy, hypertrophy of the ligamentum flavum, and disc protrusions or the combination of those.
Exclusion criteria
Exclusion criteria: predominant back pain, foraminal stenosis in the lower level, fresh soft disc herniations with bony stenosis, degenerative spondylolisthesis more than Meyerding Grade I, instability in dynamic radiographs, scoliosis more than 20°, prior surgery in the same segment, and cauda equina syndrome.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| VAS, ODI score, Macnab criteria two years continuous data | — |
Secondary
| Measure | Time frame |
|---|---|
| operative time, complications, analgesic use two years discrete data | — |
Countries
Thailand
Contacts
Department of Orthopaedic Surgery, HRH Maha Chakri Sirindhorn Medical center, Faculty of Medicine, S