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Understanding Non-Response in Spine Fusion Surgery

Understanding Non-Response in Spine Fusion Surgery

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT02611479
Enrollment
184
Registered
2015-11-20
Start date
2015-04-30
Completion date
2018-06-30
Last updated
2019-05-30

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

Conditions

Spine Fusion

Keywords

patient reported outcomes

Brief summary

To identify patient characteristics associated with non-response after spine fusion surgery for the treatment of degenerative disc disease (DDD).

Interventions

None listed

Sponsors

National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS)
CollaboratorNIH
University of Washington
Lead SponsorOTHER

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

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

Inclusion criteria

* Subject has diagnosis of degenerative disc disease * Subject is undergoing lumbar spine fusion surgery

Exclusion criteria

* Subject is less than 18 years of age * Subject is not fluent in English * Subject requires a caretaker for medical decision making

Design outcomes

Primary

MeasureTime frameDescription
Oswestry Disability IndexBaseline, 60 day, 1 yearChange in pain and function after spine fusion surgery was measured by the Oswestry Disability Index. Scores range from 0 to 100. The questionnaire has 10 questions about pain intensity, personal care, lifting ability, walking ability, sitting ability, standing ability, sleeping ability, sex ability, social life, and travelling. Each question is followed by 6 options which describe the amount of disability a patient may face in these situations and the patient marks the statement most applicable to them. Each question is scored on a scale (0-5) with the first option 0 indicating the least amount of disability and 5 indicating the most severe disability. Higher scores indicate worse outcomes, lower scores indicate better outcomes.

Countries

United States

Participant flow

Pre-assignment details

If participants did not complete a baseline survey before their lumbar spine fusion surgery or were found to be ineligible they were excluded from the study before completing follow-up surveys.

Participants by arm

ArmCount
Spine Fusion Participants
Patients undergoing lumbar spine fusion surgery for any indication.
149
Total149

Withdrawals & dropouts

PeriodReasonFG000
Baseline EnrollmentExited study13
Data CleaningNo baseline function or pain metrics2
Post-Surgery Follow-up at 1-YearLost to Follow-up18
Post-Surgery Follow-up at 30-90 DaysNo surgery reported2

Baseline characteristics

CharacteristicSpine Fusion Participants
Age, Categorical
<=18 years
0 Participants
Age, Categorical
>=65 years
78 Participants
Age, Categorical
Between 18 and 65 years
71 Participants
Alcohol, Marijuana Use
Alcohol
42 Participants
Alcohol, Marijuana Use
Cannabis Use: Score Recoded
27 Participants
Alcohol, Marijuana Use
Missing
80 Participants
Anxiety55.0 T-scores
STANDARD_DEVIATION 9.2
Asthma
Missing
6 Participants
Asthma
No
106 Participants
Asthma
Yes
37 Participants
Depression52.5 T-scores
STANDARD_DEVIATION 9.6
Emotional support54.8 T-scores
STANDARD_DEVIATION 8.1
Ethnicity (NIH/OMB)
Hispanic or Latino
5 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
144 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
Functional Limitations from back pain (ODI)41.3 units on a scale
STANDARD_DEVIATION 15.4
Global health
Excellent
8 Participants
Global health
Fair
43 Participants
Global health
Good
61 Participants
Global health
Poor
9 Participants
Global health
Very good
28 Participants
Instrumental support55.2 T-scores
STANDARD_DEVIATION 8.8
Opioid/additional therapies use88 Participants
Pain catastrophizing (fear avoidance)
All the time
11 Participants
Pain catastrophizing (fear avoidance)
Not at all
30 Participants
Pain catastrophizing (fear avoidance)
To a great degree
28 Participants
Pain catastrophizing (fear avoidance)
To a moderate degree
38 Participants
Pain catastrophizing (fear avoidance)
To a slight degree
38 Participants
Pain chronicity
1-3 months
1 Participants
Pain chronicity
1-5 years
39 Participants
Pain chronicity
3-6 months
4 Participants
Pain chronicity
6 months-1 year
19 Participants
Pain chronicity
Missing
35 Participants
Pain chronicity
More than 5 years
51 Participants
Pain interference67.1 T-scores
STANDARD_DEVIATION 5.5
Race (NIH/OMB)
American Indian or Alaska Native
2 Participants
Race (NIH/OMB)
Asian
5 Participants
Race (NIH/OMB)
Black or African American
0 Participants
Race (NIH/OMB)
More than one race
2 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
White
140 Participants
Radiculopathy112 Participants
Region of Enrollment
United States
149 participants
Sex: Female, Male
Female
83 Participants
Sex: Female, Male
Male
65 Participants
Sleep55.4 T-scores
STANDARD_DEVIATION 7.4

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
0 / 0
other
Total, other adverse events
0 / 0
serious
Total, serious adverse events
0 / 0

Outcome results

Primary

Oswestry Disability Index

Change in pain and function after spine fusion surgery was measured by the Oswestry Disability Index. Scores range from 0 to 100. The questionnaire has 10 questions about pain intensity, personal care, lifting ability, walking ability, sitting ability, standing ability, sleeping ability, sex ability, social life, and travelling. Each question is followed by 6 options which describe the amount of disability a patient may face in these situations and the patient marks the statement most applicable to them. Each question is scored on a scale (0-5) with the first option 0 indicating the least amount of disability and 5 indicating the most severe disability. Higher scores indicate worse outcomes, lower scores indicate better outcomes.

Time frame: Baseline, 60 day, 1 year

Population: 140 participants out of the 149 baseline participant population were analyzed since 9 participants were excluded due to incomplete Oswestry Disability Index data.

ArmMeasureGroupValue (MEAN)Dispersion
Spine Fusion ParticipantsOswestry Disability IndexBaseline41.3 score on a scaleStandard Deviation 15.4
Spine Fusion ParticipantsOswestry Disability Index60-day30.4 score on a scaleStandard Deviation 17.1
Spine Fusion ParticipantsOswestry Disability Index12-month19.4 score on a scaleStandard Deviation 17.3

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026