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PEEK and Allograft Spacers Evaluation in Spinal Fusion Surgeries

Prospective Randomized Clinical Trial Comparing PEEK and Allograft Spacers in Patients Undergoing Spinal Intervertebral Fusion Surgeries

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT01406405
Acronym
PEEK
Enrollment
240
Registered
2011-08-01
Start date
2011-07-31
Completion date
2018-05-16
Last updated
2019-02-27

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Degenerative Disc Disease

Keywords

Degenerative disc disease, spinal stenosis, herniated disc

Brief summary

Purpose The primary purpose of this study is to prospectively compare clinical and radiographic clinical outcomes in patients undergoing cervical or lumbar interbody fusions and randomized to receive either polyetheretherketone (PEEK) or cortical allografts.

Detailed description

Following surgery study subjects will be evaluated at the following intervals: 3 (+/- 2 weeks), 6 (+/- 1 month), 12 (+/- 2 months), 24 (+/- 2 months) months.

Interventions

PROCEDUREPosterior/Transforaminal Lumbar Interbody Fusion (P/TLIF), Anterior Cervical Discectomy and Fusion (ACDF)

Lumbar or cervical fusion

Sponsors

Justin Parker Neurological Institute
Lead SponsorOTHER

Study design

Observational model
CASE_CONTROL
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
18 Years to 70 Years
Healthy volunteers
No

Inclusion criteria

Lumbar Fusion Patient Group Inclusion Criteria: * Skeletally mature adults between 18 and 70 years old * Patients with back and leg pain due to degenerative disc disease, scheduled for TLIF/PLIF approach utilizing an interbody spacer and supplemental posterior fixation at 1, 2 or 3 adjacent levels * Unresponsive to conservative care over a period of at least 6 months or has progressive neurological signs and/or symptoms of neurological compromise that mandate urgent surgical intervention * Willing and able to comply with the requirements of the protocol including followup requirements * Willing and able to sign a study specific informed consent.

Exclusion criteria

* More than 3 intervertebral levels to be fused * Posterior fixation used at more than 1 level for 1-level intervertebral fusion * Posterior fixation used at more than 2 levels for 2-level intervertebral fusion * Posterior fixation used at more than 3 levels for 3-level intervertebral fusion * Any additional approaches, e.g. anterior, XLIF * Active local or systemic infection * Prior interbody fusion surgery at the index level * Prior fusion at the adjacent levels * Previous known allergy to polyetheretherketone (PEEK) or titanium alloy Cervical Fusion Patient Group Inclusion Criteria: * Skeletally mature adults between 18 and 70 years old * Patients with neck and/or arm pain due to degenerative disc disease, scheduled for ACDF approach utilizing an interbody spacer and anterior cervical plate at 1, 2 or 3 adjacent levels * Completed at least 6 weeks of conservative therapy or has progressive neurological signs and/or symptoms of neurological compromise that mandate urgent surgical intervention * Willing and able to comply with the requirements of the protocol including followup requirements * Willing and able to sign a study specific informed consent

Design outcomes

Primary

MeasureTime frameDescription
Pain Intensity Scores24 (+/- 2) monthsImprovement in the Neck/Arm or Low Back/Leg Visual Analog pain Scale (VAS) scores. A 30% reduction in pain intensity will be considered to be a successful response to treatment.

Secondary

MeasureTime frameDescription
Clinical and Radiographic Outcomes3 (+/-2) weeks and 24 (+/- 2) months* Assessment of Neck or Lower Back Disability Scores * Assessment of SF-36 Health Survey * Assessment of restoration of vertebral height, sagittal alignment, and graft subsidence * Assessment of fusion rates

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Mar 1, 2026