NCT03057353

Brief Summary

To measure ligamentum flavum thickness in patients with different nationalities, sexes, heights, ages, and weights from Xinjiang Uygur Autonomous Region of China with CT, explore the correlation between various factors and ligamentum flavum thickness, provide reference for pedicle screw placement and lumbar decompression surgery, develop individualized surgical programs, and can effectively reduce the incidence of unnecessary postoperative complications induced by misplacement.

Trial Health

35
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
104

participants targeted

Target at P50-P75 for all trials

Timeline
Completed

Started May 2012

Longer than P75 for all trials

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

May 1, 2012

Completed
4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 1, 2016

Completed
10 months until next milestone

First Submitted

Initial submission to the registry

February 15, 2017

Completed
5 days until next milestone

First Posted

Study publicly available on registry

February 20, 2017

Completed
2 months until next milestone

Study Completion

Last participant's last visit for all outcomes

May 1, 2017

Completed
Last Updated

February 20, 2017

Status Verified

February 1, 2017

Enrollment Period

4 years

First QC Date

February 15, 2017

Last Update Submit

February 15, 2017

Conditions

Outcome Measures

Primary Outcomes (1)

  • Ligamentum flavum thickness

    Changes in ligamentum flavum thickness were observed under different influential factors.

    from May 2012 to May 2016

Secondary Outcomes (1)

  • Lumbar morphology of patients

    from May 2012 to May 2016

Study Arms (1)

lumbar CT imaging

Collecting lumbar CT imaging data of 104 patients with lumbar spinal stenosis to observed the incidence of ligamentum flavum hypertrophy of patients with different nationalities, sexes, heights, ages, and weights and explored risk factors affecting ligamentum flavum hypertrophy.

Device: lumbar CT imaging

Interventions

Collecting lumbar CT imaging data of 104 patients with lumbar spinal stenosis to observed the incidence of ligamentum flavum hypertrophy of patients with different nationalities, sexes, heights, ages, and weights and explored risk factors affecting ligamentum flavum hypertrophy.

lumbar CT imaging

Eligibility Criteria

Age45 Years - 80 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodProbability Sample
Study Population

104 patients were evaluated after they signed the informed consent, including sex, age, height, nationality, weight, history of present illness, past history, family history, personal history, marital history, laboratory examination, and CT examination.

You may qualify if:

  • Lumbar spinal stenosis revealed by Lumbar CT images
  • Complained of low back pain
  • Age between 45 and 80 years old
  • Irrespective of sex
  • Signed informed consent

You may not qualify if:

  • Spinal injury
  • Spinal tumor
  • Spinal infection
  • Congenital or acquired spine deformity
  • Pulmonary tuberculosis
  • Severe systemic disease such as malignant tumor
  • Cannot cope with the doctor due to mental illness or other causes

Contact the study team to confirm eligibility.

Sponsors & Collaborators

MeSH Terms

Conditions

Spinal Stenosis

Condition Hierarchy (Ancestors)

Spinal DiseasesBone DiseasesMusculoskeletal Diseases

Study Officials

  • Gang Zhou, Master

    Sixth Affiliated Hospital of Xinjiang Medical University

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
CASE ONLY
Time Perspective
RETROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Attending Physician

Study Record Dates

First Submitted

February 15, 2017

First Posted

February 20, 2017

Study Start

May 1, 2012

Primary Completion

May 1, 2016

Study Completion

May 1, 2017

Last Updated

February 20, 2017

Record last verified: 2017-02