The iO-Flex® Study: Evaluation of the Baxano iO-Flex® System for Decompressive Lumbar Surgery

NCT ID: NCT01067014

Last Updated: 2013-09-23

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Total Enrollment

75 participants

Study Classification

OBSERVATIONAL

Study Start Date

2010-02-28

Study Completion Date

2014-12-31

Brief Summary

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The purpose of this study is to evaluate the clinical performance of the iO-Flex® System in reducing pain and symptom severity in patients with one or two level lumbar spinal stenosis that requires surgery.

Detailed Description

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Conditions

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Lumbar Spinal Stenosis

Keywords

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Lumbar spinal stenosis Decompression Lumbar spinal decompression Lumbar spinal decompressive surgery

Study Design

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Observational Model Type

CASE_ONLY

Study Time Perspective

PROSPECTIVE

Study Groups

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iO-Flex

Baxano iO-Flex® System

Intervention Type DEVICE

Decompressive lumbar surgery using Baxano iO-Flex® System

Interventions

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Baxano iO-Flex® System

Decompressive lumbar surgery using Baxano iO-Flex® System

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

Candidates for this study must meet ALL of the following criteria:

1. Age ≥18 years
2. Leg/buttock pain with or without back pain
3. Failed nonoperative medical management
4. A minimum leg pain score of 4.0 cm on the Visual Analogue Scale (VAS)
5. Clinical/radiographic diagnosis of LSS in the L2-L3 to L5-S1 region
6. Able and willing to give voluntary, written informed consent to participate in this clinical study

Exclusion Criteria

Candidates will be excluded from the evaluation if ANY of the following apply:

1. Back pain only
2. A diagnosis of central stenosis only
3. More than two levels requiring decompression
4. Fixed motor deficit
5. Significant instability of the lumbar spine as defined by ≥ 4mm translation between standing flexion and extension lumbar spine plain film radiographs
6. Sustained pathologic fractures of the vertebrae or multiple fractures of the vertebrae and/or hips
7. Primary disc pathology and/or patients who will undergo a discectomy
8. Prior surgery of the lumbar spine at the level(s) of planned treatment
9. Spondylolisthesis or degenerative spondylolisthesis greater than Grade 1 (on a scale of 1 to 4)
10. Spondylolysis (pars fracture) at any level in the lumbar spine
11. Degenerative lumbar scoliosis with a Cobb angle greater than or equal to 25°
12. Symptomatic vascular claudication in the lower extremities
13. Cauda equina syndrome (neural compression causing neurogenic bowel or bladder dysfunction)
14. Evidence of active (systemic or local) infection at time of surgery
15. Paget's disease at involved segment or metastasis to the vertebra, osteomalacia, or other metabolic bone disease
16. Tumor in the spine or a malignant tumor except for basal cell carcinoma
17. Prisoner or transient
18. Recent history of known narcotic abuse
19. Any significant psychological disturbance past or present, psychotic or neurotic, that could impair the consent process or ability to complete subject self-report questionnaires
20. Involved in pending litigation of the spine or worker's compensation related to the back
21. Inability to communicate clearly in the English language
22. Morbid obesity (BMI \> 40)
23. Plans to relocate within the next 2 years
24. Pregnant or planning to become pregnant
25. Irreversible coagulopathy or bleeding disorder

a. Subjects on Coumadin or other anticoagulants may participate. Investigators should follow routine practices for perioperative discontinuation and reinitiation of anticoagulants.
26. Subject unwilling to undergo blood transfusion, if necessary
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Baxano Surgical, Inc.

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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Eden Medical Center

Castro Valley, California, United States

Site Status

Olympia Medical Center

Los Angeles, California, United States

Site Status

Watsonville Community Hospital

Watsonville, California, United States

Site Status

Resurgens Orthopaedics

Cumming, Georgia, United States

Site Status

Suburban Orthopedics

Bartlett, Illinois, United States

Site Status

Spine Midwest, Inc.

Jefferson City, Missouri, United States

Site Status

McCune-Brooks Regional Hospital

Joplin, Missouri, United States

Site Status

Buffalo Spine Surgery

Lockport, New York, United States

Site Status

Triangle Orthopaedic Associates

Chapel Hill, North Carolina, United States

Site Status

Moses Cone Hospital

Greensboro, North Carolina, United States

Site Status

Caldwell Memorial Hospital

Lenoir, North Carolina, United States

Site Status

Rothman Institute

Bensalem, Pennsylvania, United States

Site Status

Easton Hospital

Easton, Pennsylvania, United States

Site Status

Carolina Neurosurgery & Spine Center

Greenwood, South Carolina, United States

Site Status

Neurospine Solutions, PC

Bristol, Tennessee, United States

Site Status

Spine Works Institute

North Richland Hills, Texas, United States

Site Status

University of Utah

Salt Lake City, Utah, United States

Site Status

Tuckahoe Orthopaedic Associates

Richmond, Virginia, United States

Site Status

Countries

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United States

Other Identifiers

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CP-1318

Identifier Type: -

Identifier Source: org_study_id