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临床试验/NCT00887835
NCT00887835撤回不适用

A Post-Market Study of Transfacet Lumbar Spine Fixation and Fusion Utilizing the PERPOS™ PLS System

Interventional Spine, Inc.0 个研究点开始时间: 2009年4月最近更新:
适应症

试验速览

阶段
不适用
状态
撤回
主要终点
Change in Oswestry Disability Index and Visual Analogue Scale

研究概览

简要总结

The purpose of this study is to utilize the PERPOS™ PLS System for transfacet lumbar spine fixation to evaluate its effect on patients' level of pain, procedural complications and functional status.

详细描述

The PERPOS™ PLS System involves a minimally invasive, percutaneous implant procedure via a small incision.

The PERPOS™ PLS is intended for lumbar bilateral facet fixation, with or without bone graft, at single or multiple levels from L1 to S1.

研究设计

研究类型
Interventional
分配方式
Non Randomized
干预模型
Single Group
主要目的
Treatment
盲法
None

入排标准

年龄范围
18 Years 至 85 Years(Adult, Older Adult)
性别
All
接受健康志愿者

入选标准

  • Females and males between 18 and 85
  • Must have lumbar facet disease confirmed by:
  • Documented pain relief with controlled lumbar facet block using local anesthetic or steroid administration; AND
  • MRI or CT scan, with or without bone scan, obtained within 3 months of enrollment, confirming arthritic facet joints OR, must have lumbar facet disease (as confirmed above) and are contra-indicated for steroid injections, or non-compliant with conservative pain management treatments, or wish to avoid the side-effects of steroids or prescriptive pain medication treatment
  • Must score at least 4 on a 10-point Visual Analog Scale (VAS) for back pain
  • Must score at least 40% on the Oswestry Disability Index.
  • Must have less than 50% disc height loss
  • Must have no greater than Grade I spondylolisthesis demonstrated on flexion and extension lumbar radiographs taken within 2 months of enrollment
  • Willing and able to comply with the requirements of the protocol including follow-up requirements
  • Willing and able to sign a study specific informed consent.

排除标准

  • Are within the first two PERPOS PLS System utilization experience of the investigator
  • Have severe facet degeneration, radiographic findings of severe facet joint disease, degeneration of misshapen facet(s) or structural anomalies at the target fusion level that would preclude proper placement of the BONE-LOK Implant.
  • Have evidenced malingering behavior related to workman's compensation claims
  • Have had any significant prior intervention (greater than an injection) in the facet joint to be treated, or within two (2) levels above or two (2) levels below the facet joint to be treated
  • Have had prior instrumentation of involved vertebrae at any time
  • Have osteoporotic bone at the lumbar spine level to be treated based on the SCORE (Simple Calculated Osteoporosis Risk Estimation) screening questionnaire, (or a DEXA bone density measured T score <-1.0.).
  • Have scoliosis with lateral angulation >20 degrees
  • Have an active malignancy: A subject with a history of any invasive malignancy (except non-melanoma skin cancer), unless s/he has been treated with curative intent and there have been no clinical signs or symptoms of malignancy for at least 5 years.
  • Have a cyst in the canal associated with the facet
  • Have neurologic deficit bowel or bladder dysfunction
  • Have spinal canal or neural foramen compromise
  • Have an infection (local or systemic)
  • Have myelopathy
  • Have abnormal coagulation time
  • Have been or will be on anticoagulation therapy within 10 days of the study procedure
  • Have radiculopathy
  • Have cord compression or canal compromise requiring surgery for decompression
  • Have disabling back pain secondary to another cause
  • Have COPD that poses anesthesia risk
  • Have severe cardiopulmonary deficiencies
  • Have narcotic dependence or >90 days of narcotic pain medications
  • Are morbidly obese (BMI >40)
  • Have uncontrolled diabetes
  • Have known allergies to implant materials, e.g., titanium.
  • Are currently pregnant or lactating or considering becoming pregnant during the follow-up period
  • Have been involved in an investigational drug or device study within the previous 30 days

结局指标

主要结局

Change in Oswestry Disability Index and Visual Analogue Scale

时间窗: 1 year

次要结局

未报告次要终点

研究者

申办方类型
Industry
责任方
Sponsor

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