Chronic Low Back Pain Clinical Trial
— DISCERNOfficial title:
Debilitating Low Back paIn: Multi-centre Safety and performanCe invEstigation Of CAdiscTM-L, Total Disc ReplacemeNt Therapy
The purpose of this European Union (EU) study to evaluate the safety and performance of the CAdiscTM-L Lumbar Spinal Disc Replacement Device in the surgical replacement of the lumbar intervertebral discs (L3 to S1) for patients requiring surgical intervention for total lumbar disc replacement for the treatment of debilitating, chronic low back pain.
Status | Completed |
Enrollment | 0 |
Est. completion date | June 2010 |
Est. primary completion date | |
Accepts healthy volunteers | No |
Gender | Both |
Age group | 25 Years to 65 Years |
Eligibility |
Inclusion Criteria: - Male or non pregnant, non-lactating female - Aged between 25-65 years (inclusive) - BMI < 35 - Preoperative ODI > 30 points - Chronic low back pain, and is in the opinion of the investigator a suitable candidate for anterior lumbar surgery - Completed at least 6 months of conservative treatment without obtaining adequate symptomatic relief - Degenerative disc changes at a single level between L3 - L4, or L4 - L5, or L5 - S1 as confirmed by positive discography and visualized by X-Ray, CT or MRI scan and/or with one or more of the following: - Decrease in disc height < 50% (or up to 80% and no benefit from facet injections) - Annular thickening - Herniated nucleus pulpous - Subject is able to give voluntary, written informed consent to participate in this investigation and from whom written consent must be obtained prior to enrolment. Exclusion Criteria: - Back or leg pain of unknown aetiology - Radicular or sciatic pain which is more severe than low back pain - Previous lumbar spinal surgery which could affect the trial outcome (e.g., disc replacement) - Obvious signs of psychological or worker's compensation or litigation claim elements to their condition, or are actively engaged in such activities - Subject is unwilling or unable to give consent or adhere to the follow-up programme - Active infection or metastatic disease - Non-degenerative spondylolisthesis - Degenerative spondylolisthesis > grade 1 - Known allergy to any of the implant materials - Osteoporosis (if suspected to be confirmed by bone density being 2.5SD below normal as assessed using DEXA analysis in post-menopausal females if suggested by X-ray or other risk factors) - Osteopenia - Bony lumbar stenosis - Pars defect - Isolated radicular compression syndromes, especially due to disc herniation - Clinically compromised vertebral bodies at the affected levels due to current or past trauma - Subject is skeletally immature as determined by the investigator - Subject has participated in another clinical investigation or study with an investigational medical device within the last 60 days - Concomitant medications that are known significantly to interfere with bone/soft tissue healing, e.g. steroids. - Uncorrected iliac, aorto-iliac, or aortic aneurysm disease. - Spinal instability (> 3mm translation or > 5° angulation) confirmed by functional radiological assessment. - Degenerative disc changes at the L6 - S1 level |
Primary Purpose: Treatment
Country | Name | City | State |
---|---|---|---|
n/a |
Lead Sponsor | Collaborator |
---|---|
Ranier Technology Limited |
Belgium, Germany, Netherlands, United Kingdom,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Improvement of 15 points on the Oswestry Disability Index (ODI) scale at 3 months post-surgery, compared to baseline |
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