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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT01323387
Other study ID # 1255
Secondary ID
Status Completed
Phase N/A
First received March 23, 2011
Last updated December 15, 2017
Start date April 1, 2004
Est. completion date February 1, 2011

Study information

Verified date December 2017
Source Synthes USA HQ, Inc.
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

Multi-center, prospective nonrandomized study of treatment for 1 and 2 level degenerative disc disease between L2 and S1. Patients will be followed for a minimum of 2 years.

The primary objective of this study to measure fusion success in patients with lumbar degenerative disc disease using the ATB and ALIF/FRA Spacer. The Secondary objective is evaluation of the patient's quality of life, pain and function.


Recruitment information / eligibility

Status Completed
Enrollment 178
Est. completion date February 1, 2011
Est. primary completion date May 1, 2009
Accepts healthy volunteers Accepts Healthy Volunteers
Gender All
Age group 18 Years and older
Eligibility Inclusion Criteria:

1. One or Two level (consecutive) degenerative disc disease between L2 and S1. Degenerative disc disease is defined as follows:

Chronic pain (confirmed by patient exams and history) of discogenic origin, confirmed by radiographic evidence (e.g. MRI, discogram) two or more of the following:

- Modic type 2 endplate changes on T2 weighted MRI

- high intensity zone signal on T2 weighted MRI

- positive discogram with negative controls

- dark disc (diminished T2 weighted signal)

- decreased disc height

2. Has experienced pain, functional deficit and/or neurological deficit for a minimum six month period of time prior to enrollment

3. Has failed to respond to non-operative treatment modalities for a minimum three month period of time prior to enrollment

4. Skeletally mature and at least 18 years of age

5. Signs the approved Informed Consent Document

6. Is available for long term follow-up and interval visits

Exclusion Criteria:

1. Has more than 2 levels to be instrumented

2. Has had a previous fusion attempt at the involved level(s)

3. Has had more than two previous open, lumbar spine surgical procedures at the involved level(s)

4. Currently implanted with anterior instrumentation at the involved level(s)

5. Patient would be classified as morbidly obese BMI > 35

6. Active localized or systemic infection

7. Presence of a disease entity or condition which significantly affects the possibility of bony fusion (e.g., osteoporosis, metastatic cancer, long-term use of steroids, etc.)

8. Has an immunosuppressive disorder

9. Pregnant or interested in becoming pregnant during the study.

10. Has a known sensitivity to device materials

11. Mentally incompetent or prisoner

12. Currently a participant in another study for the same indications.

Study Design


Intervention

Device:
Interbody Fusion
allograft spacer + anterior plate

Locations

Country Name City State
n/a

Sponsors (1)

Lead Sponsor Collaborator
Synthes USA HQ, Inc.

Outcome

Type Measure Description Time frame Safety issue
Primary Number of Subjects With Successful Radiographic Fusion CT Scans and plain film x-rays will be evaluated. Demonstration of bridging trabecular bone through or external to the allograft spacer will be the measure of success. 24 Months
Secondary Quality of Life Using the SF-12 Scale Physical Health Component Score (PCS). Number of Subjects Who Achieved 15% Improvement in PCS Compared to Baseline. Quality of Life using the SF-12 Scale Physical Health Component Score (PCS). The PCS is a measurement of health status with a range of 0-100. A higher score indicates less disability. 24 Months
Secondary Pain Scores on the Numeric Rating Scale (NRS) The Numeric Rating Scale (NRS) is a measurement of pain from a value of 0 (no pain) to a value of 10 (worst pain) Baseline and 24 Months
Secondary Oswestry Disability Index (ODI): Number of Subjects Who Achieved a 15% Improvement in ODI Compared to Baseline The outcome measure is the number of subjects who achieved a 15% improvement in ODI compared to baseline. The ODI is an index derived from the Oswestry Low Back Pain Questionnaire used by clinicians and researchers to quantify disability for low back pain. ODI scores range from 0 to 100 with 0 equating to No Disability and 100 equating to the Maximum Disability Possible 24 Months
Secondary Quality of Life Using SF-12 Scale (MCS): Number of Subjects Who Achieved 15% Improvement in MCS Compared to Baseline The outcome measure is the number of subjects who achieved a 15% improvement in MCS compared to baseline. The MCS (Mental Component Score) is a measurement of health status with a range of 0 to 100. A higher score indicates less disability. Baseline and 24 Months
Secondary SF-12 Physical Composite Score (PCS) Summary The PCS (Physical Component Score) is a measurement of health status with a range of 0 to 100. A higher score indicates less disability. Baseline and 24 Months
Secondary SF-12 Mental Composite Score (MCS) Summary The MCS (Mental Component Score) is a measurement of health status with a range of 0 to 100. A higher score indicates less disability. Baseline and 24 Months
Secondary Oswestry Disability Index (ODI) Summary The Oswestry Disability Index (ODI) is an index derived from the Oswestry Low Back Pain Questionnaire used by clinicians and researchers to quantify disability for low back pain. The scores can range from 0 to 100 with 0 equating to No Disability and 100 equating to the Maximum Disability Possible Baseline and 24 Months
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