NCT01491451已完成不适用
A Pilot Clinical Investigation of Recombinant Human Bone Morphogenetic Protein-2 and Absorbable Collagen Sponge With the INTERFIX™ Device for the Anterior Lumbar Interbody Fusion in Patients With Degenerative Disc Disease
Medtronic Spinal and Biologics0 个研究点目标入组 45 人开始时间: 1999年2月1日最近更新:
适应症
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 发起方
- 入组人数
- 45
- 主要终点
- Pain/Disability Status
研究概览
简要总结
The purpose of this pilot clinical trial is to evaluate the device design as a method of facilitating spinal fusion.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Treatment
- 盲法
- None
入排标准
- 年龄范围
- 18 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Has degenerative disc disease as noted by back pain of discogenic origin, with or without leg pain, with degeneration of the disc confirmed by patient history (e.g., pain [leg, back, or symptoms in the sciatic nerve distribution], function deficit and/or neurological deficit) and radiographic studies (e.g., CT, MRI, X-Ray, etc.) to include one or more of the following:
- •instability (defined as angular motion >= 5° and/or translation >= 4mm, based on Flex/Ext radiographs);
- •osteophyte formation;
- •decreased disc height;
- •thickening of ligamentous tissue;
- •disc degeneration or herniation; and/or
- •facet joint degeneration.
- •Has preoperative Oswestry score >=
- •Has no greater than Grade 1 spondylolisthesis utilizing Meyerding's Classification (Meyerding HW, 1932.).
- •Has single-level symptomatic degenerative involvement from L2 to S
- •Is at least 18 years of age, inclusive, at the time of surgery.
- •Has not responded to non-operative treatment (e.g., bed rest, physical therapy, medications, spinal injections, manipulation, and/or TENS) for a period of at least 6 months.
- •If female of child-bearing potential, who is not pregnant or nursing, and who agrees to use adequate contraception for 16 weeks following surgery.
- •Is willing and able to comply with the study plan and sign the Patient Informed Consent Form.
排除标准
- •Had previous anterior spinal fusion surgical procedure at the involved level.
- •Has posterior spinal instrumentation (which will not be removed) stabilizing the involved level or has had a previous posterior lumbar interbody fusion procedure at the involved level.
- •Has a condition which requires postoperative medications that interfere with fusion, such as steroids.
- •Has been previously diagnosed with osteopenia, osteoporosis, or osteomalacia to a degree that spinal instrumentation would be contraindicated.
- •Has presence of active malignancy.
- •Has overt or active bacterial infection, either local or systemic.
- •Is grossly obese, i.e., weight> 40% over ideal for their age and height.
- •Has fever (temperature> 101°F oral) at the time of surgery.
- •Has a documented titanium alloy allergy or intolerance.
- •Is mentally incompetent. If questionable, obtain psychiatric consult.
- •Has a Waddell Signs of Inorganic Behavior score of 3 or greater.
- •Is a prisoner.
- •Is an alcohol and/or drug abuser as defined by currently undergoing treatment for alcohol and/or drug usage.
- •Is a tobacco user at the time of surgery.
- •Has received drugs which may interfere with bone metabolism within two weeks prior to the planned date of spinal fusion surgery (e.g., steroids or methotrexate).
- •Has a history of autoimmune disease (Systemic Lupus Erythematosus or Dermatomyositis).
- •Has a history of exposure to injectable collagen implants.
- •Has a history of hypersensitivity to protein pharmaceuticals (monoclonal antibodies or gamma globulins) or collagen.
- •Has received treatment with an investigational therapy within 28 days prior to implantation surgery or such treatment is planned during the 16 weeks following rhBMP-2/ACS implantation.
- •Has received any previous exposure to any/all BMP of either human or animal extraction.
- •Has a history of allergy to bovine products or a history of anaphylaxis.
- •Has history of endocrine or metabolic disorder known to affect osteogenesis (e.g., Paget's disease, renal osteodystrophy, Ehlers-Danlos syndrome, or osteogenesis imperfecta).
结局指标
主要结局
Pain/Disability Status
时间窗: 24 month
The self-administered Oswestry Low Back Pain Disability Questionnaire will be used. Success for each individual patient will be defined as pain/disability improvement postoperatively according to the following definition: Preoperative Score - Postoperative Score \>= 15
Neurological Status
时间窗: 24 month
Neurological status will be assessed preoperatively and postoperatively using a comprehensive neurological status scale.
Fusion
时间窗: 24 month
Fusion is defined as: 1. Evidence of bridging trabeculae. 2. No evidence of motion as defined by: a. No more than 3mm difference in translation on the lateral flexion/extension radiographs as determined by superimposing the two views, one upon the other. b.Less than 5° difference in angular motion between flexion and extension as seen on lateral flexion/extension radiographs. 3. No evidence of radiolucency surrounding greater than 50% of either device.
次要结局
- Patient Satisfaction(24 month)
- Hip (Donor Site) Pain(24 month)
- Disc Height Measurement(24 month)
- Patient Global Perceived Effect(24 month)
- General Health Status (SF-36)(24 month)
- Pain Status (back pain, leg pain)(24 month)
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