Safety and Effectiveness of Extended Circumferential Decompression for Thoracic Ossification of Posterior Longitudinal Ligament

May 28, 2021 updated by: Second Affiliated Hospital, School of Medicine, Zhejiang University

Safety and Effectiveness of Extended Circumferential Decompression for Thoracic Ossification of Posterior Longitudinal Ligament：a Single-center Experience

The study was to evaluate the indications, efficiency and safety of the extended posterior circumferential decompression technique for the treatment of thoracic ossification of posterior longitudinal ligament (TOPLL) with dura adhesions or ossification.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

The clinical characteristics of patients with TOPLL combined with dura adhesions who underwent extended circumferential decompression in our hospital were retrospectively investigated. TOPLL adhered with dura matter or dura ossification were detected intraoperatively in all the cases. Imaging evaluation included the ossification-kyphosis angle and the fixed-segment kyphosis angle. A modified Japanese Orthopedic Association Score (JOA score) was applied for the evaluation of clinical outcomes.

Study Type

Observational

Enrollment (Actual)

30

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • China
    • Zhejiang
      • Hangzhou, Zhejiang, China, +86 310000
        • Second Affiliated Hospital of Zhejiang University, School of Medicine

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Child
  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Probability Sample

Study Population

No limit

Description

Inclusion Criteria: (1) thoracic myelopathy caused by TOPLL with or without TOLF; (2) severe adhesions between dura mater and ossified lesion with or without dura ossification confirmed intraoperatively; (3) extended posterior circumferential decompression was applied; (4) pedicle screw instrumentations were implanted after decompression; (5) follow-up for more than 6 months; (7) complete clinical data.

Exclusion Criteria:

(1) spinal deformities; (2) thoracic spine fractures; (3) syringomyelia, spinal tumor, myelitis, etc.; (4) coexisted with cervical spondylosis and lumbar stenosis; (5) post operation of thoracic spinal stenosis; (6) recurrent myelopathy caused by lesions in other levels than the decompressed segments.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
A modified Japanese Orthopedic Association Score
Time Frame: 2 years
Spinal neurological function evaluation by Japanese Orthopedic Association
2 years

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Second Affiliated Hospital, School of Medicine, Zhejiang University

Investigators

  • Study Director: Ruofu Tang, Second affiliated hospital of medicine, Zhejiang University

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

June 8, 2020

Primary Completion (Actual)

March 1, 2021

Study Completion (Actual)

April 1, 2021

Study Registration Dates

First Submitted

May 28, 2021

First Submitted That Met QC Criteria

May 28, 2021

First Posted (Actual)

June 2, 2021

Study Record Updates

Last Update Posted (Actual)

June 2, 2021

Last Update Submitted That Met QC Criteria

May 28, 2021

Last Verified

May 1, 2021

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 2020-439

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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