NCT04948281

Brief Summary

This study was conducted to analyze the effect of joint infection on the bone tunnel, graft and articular cartilage following arthroscopic single-bundle anterior cruciate ligament (ACL) reconstruction with autologous hamstring, to summarize the features of MR findings after joint infection, and to correlate these findings with their possible factors.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
104

participants targeted

Target at P50-P75 for all trials

Timeline
Completed

Started Jan 2019

Geographic Reach
1 country

1 active site

Status
completed

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 Start

First participant enrolled

January 1, 2019

Completed
Same day until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 1, 2019

Completed
2 years until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2020

Completed
6 months until next milestone

First Submitted

Initial submission to the registry

June 27, 2021

Completed
4 days until next milestone

First Posted

Study publicly available on registry

July 1, 2021

Completed
Last Updated

July 12, 2021

Status Verified

June 1, 2021

Enrollment Period

Same day

First QC Date

June 27, 2021

Last Update Submit

July 8, 2021

Conditions

Outcome Measures

Primary Outcomes (3)

  • Tunnel enlargement

    A 3.0T MRI unit (General Electric Healthcare) with an 8-channel coil was used for measurement. Anteroposterior and lateromedial diameter at tunnel aperture, midsection and exit of tibial and femoral tunnel (demonstrated as TTa, TTm, TTe, FTa, FTm, FTe) was measured on T1-weighted images (in millimeters)

    1 year after operation/infection

  • Graft signal intensity

    Proton Density weighted fat suppressed turbo-spin echo (PD-TSE-FS) sequence was taken to calculate the SNQof the graft. Graft signal intensity was measured at proximal, middle and distal end of the graft.

    1 year after operation/infection

  • Cartilage morphology

    The cartilage morphology at surgery was assessed using Outerbridge classification for chondral lesion and recorded in operation note. cartilage morphology was assessed according to the Whole-organ magnetic scoring system (WORMS) of the knee on sagittal and axial T2-weighted FSE images.

    1 year after operation/infection

Study Arms (2)

Infection Group

A group of joint infection patients after arthroscopic ACL reconstruction surgery , diagnose was made according to American CDC criteria of joint infection

Other: no intervention

Control Group

A group of patients which were matched to infections group retrospectively one-to-three who did not sustain any kind of infection after ACL reconstruction.

Other: no intervention

Interventions

no intervention

Control GroupInfection Group

Eligibility Criteria

Age16 Years - 50 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64)
Sampling MethodProbability Sample
Study Population

The study population were from 20549 arthroscopic ACL reconstruction surgeries in our institute between January 2002 to December 2017.

You may qualify if:

  • Age between 16 to 50 years;
  • Underwent single-bundle ACL reconstruction with autologous hamstring;
  • Had valid follow-up magnetic resonance imaging (MRI) at least 1 year after surgery

You may not qualify if:

  • Concomitant ligament injury which need surgical repair;
  • Delayed onset of postoperative joint infection (\>3 months after surgery).

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Peking university third hospital

Beijing, Beijing Municipality, 100191, China

Location

Study Officials

  • yingfang ao, M.D.

    Peking University Third Hospital

    STUDY CHAIR

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
RETROSPECTIVE
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

June 27, 2021

First Posted

July 1, 2021

Study Start

January 1, 2019

Primary Completion

January 1, 2019

Study Completion

December 31, 2020

Last Updated

July 12, 2021

Record last verified: 2021-06

Locations