NCT06233539

Brief Summary

The most effective treatment for atlantoaxial dislocation is surgical treatment, with the principle of achieving reduction, reconstruction, and fusion of the atlantoaxial joint. The surgical strategies mainly include simple anterior approach, simple posterior approach, and combined anterior posterior approach. The investigators have summarized 904 cases of atlantoaxial instability or dislocation from 1998 to 2010 and preliminarily published the diagnosis and treatment strategy tree of the Third Hospital of Beijing Medical University. This strategy is divided into four types based on the severity of atlantoaxial dislocation: unstable, reversible, difficult to recover, and skeletal, and enters different surgical treatment processes. With the increase in the number of cases, accumulation of experience, and technological improvements in the past decade, spinal surgery colleagues have updated their classification diagnosis, diagnosis and treatment processes, and surgical techniques for atlantoaxial instability or dislocation. However, the selection of treatment strategies for atlantoaxial dislocation is mostly based on the surgeon's own experience, and there is a lack of standardized, large-scale, and high-level evidence-based medical research on the safety and effectiveness of current empirical strategies. Based on this, this study intends to adopt a multicenter, retrospective, and prospective study to construct a high-quality clinical cohort of atlantoaxial dislocation, update the classification and diagnosis and treatment strategies of atlantoaxial dislocation. And conduct long-term follow-up on patients to evaluate their safety and effectiveness, guide the surgical treatment of atlantoaxial dislocation, and thus form a recognized diagnostic and treatment standard for atlantoaxial dislocation.

Trial Health

77
On Track

Trial Health Score

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

Enrollment
3,000

participants targeted

Target at P75+ for all trials

Timeline
8mo left

Started Dec 2022

Longer than P75 for all trials

Geographic Reach
1 country

1 active site

Status
recruiting

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

Trial Relationships

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Study Timeline

Key milestones and dates

Study Progress84%
Dec 2022Dec 2026

Study Start

First participant enrolled

December 1, 2022

Completed
1.1 years until next milestone

First Submitted

Initial submission to the registry

January 22, 2024

Completed
9 days until next milestone

First Posted

Study publicly available on registry

January 31, 2024

Completed
1.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2025

Completed
1 year until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2026

Expected
Last Updated

April 3, 2024

Status Verified

January 1, 2024

Enrollment Period

3.1 years

First QC Date

January 22, 2024

Last Update Submit

April 1, 2024

Conditions

Outcome Measures

Primary Outcomes (1)

  • The incidence of special attention adverse events in patients within 12 months after surgery

    The proportion of adverse events occurring in patients during the study period to the total number of study patients. Recording and reporting of adverse events, including: • deterioration of neurological function * Incision infection * Vascular injury Airway obstruction Poor reset • Unplanned readmission and unplanned reoperation • Internal fixation failure Fusion failure Surgical related lower cervical spine deformities

    12 month follow up

Study Arms (2)

Retrospective section

Other: Observational research without intervention

Prospective section

Other: Observational research without intervention

Interventions

Observational research without intervention

Prospective sectionRetrospective section

Eligibility Criteria

Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Patients diagnosed with atlantoaxial dislocation and treated with surgery

You may qualify if:

  • Patients diagnosed with atlantoaxial dislocation and treated with surgery

You may not qualify if:

  • Disagree to participate in this study.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Shenglin Wang

Beijing, Beijing Municipality, 100191, China

RECRUITING

MeSH Terms

Conditions

Disease

Interventions

Methods

Condition Hierarchy (Ancestors)

Pathologic ProcessesPathological Conditions, Signs and Symptoms

Intervention Hierarchy (Ancestors)

Investigative Techniques

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
OTHER
Target Duration
1 Year
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

January 22, 2024

First Posted

January 31, 2024

Study Start

December 1, 2022

Primary Completion

December 31, 2025

Study Completion (Estimated)

December 31, 2026

Last Updated

April 3, 2024

Record last verified: 2024-01

Locations