failed back surgery syndrome
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: FBSS patient group: 1. A clear history of anatomically and technically successful lumbosacral spinal surgery; 2. Increased/persistent pain in the lumbosacral area with or without radiation to the leg for at least 6 months after the operation; 3. LBP intensity at rest and/or with movement greater than or equal to 3 on the 0 to 10 numeric rating pain scale (NRS; 0 = no pain, 10 = maximum tolerable pain). Patient-control group: Not exhibit chronic LBP after lumbosacral spinal surgery. Normal-control group: Matched for demographic data in relation to the patient group, and these healthy subjects must not have presented episodes of LBP for more than 7 days in the last 12 months.
Exclusion criteria
Exclusion criteria: 1. Lumbar structural pathologies (e.g., traumatic spinal injuries, infections, tumor, and ankylosing spondylitis); 2. Coexisting conditions that could increase procedural risk or worsen/change the pain (e.g., severe hypertension or cardiac disease, peripheral vascular disease, diabetes mellitus, sepsis, coagulopathy, coexisting chronic pain, peripheral or central neurological disease, and drug or alcohol abuse); 3. Psychiatric or other conditions that would disturb the subject's cooperation; 4. Incomplete medical records; 5. Patients who were lost to follow-up.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Quantitative Sensory Testing, QST;Pain-related scales;psychosocial questionnaires; | — |
Countries
China
Contacts
Huashan Hospital Fudan University