New MRI Measurement of Patellar Height in Knee Extension - IES-EV Control Study

NCT05659316 | Completed

• 1 other identifier: RGDS-2019-12-064
• Study Type: observational
• Target: 40
• Locations: 1 country
• Sites: 1

Brief Summary

The measurement of the patellar height is essential to decide and quantify the surgical correction to be made. The classic index is that of Cato and Deschamps. It has the advantage of its simplicity, with the measurement on a simple profile radiograph of the ratio between the distance from the patella to the tibia and the length of the patella. However, it has the disadvantage of measuring this height in relation to the tibia when the dislocation is located at the level of the patello-trochlear joint. The MRI index of sagittal patellar engagement on the trochlea (IES), described in 2012, does not have this drawback but it does not appear to be reliable: its value depends, in fact, on the flexion of the knee. This flexion, required by the MRI, is variable and is not specified by the radiologist. It is due to the use of an "antenna" that surrounds and lifts the knee. The hypothesis of the study is that it is possible to determine and validate a new IES, in knee extension and therefore reproducible, thanks to the measurement of knee flexion on MRI. The precise value of this flexion can allow a virtual correction of the original IES to obtain, by mathematical calculation, the new IES in virtual extension.

Conditions

Knee Injuries

Outcome Measures

Primary Outcomes (1)

• Index of sagittal engagement of the patella (IES)

  Measurement of a MRI index of sagittal engagement of the patella (IES) in knee extension at 0°

  1 day

Study Arms (1)

Healthy volunteers

Healthy volunteers without any patellar injury

Other: MRI imaging

Interventions

MRI imaging OTHER

Knee MRI imaging

Healthy volunteers

Eligibility Criteria

• Age: 18 Years+
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64), Older Adult (65+)
• Sampling Method: Non-Probability Sample

Study Population

Subject with knee MRI

You may qualify if:

• Subject, male or female, over 18 years old
• Subject with an MRI
• Subject without patellar pathology, in particular without patellar instability
• Subject having been informed and not objecting to the use of his data

You may not qualify if:

• None

Sponsors & Collaborators

• GCS Ramsay Santé pour l'Enseignement et la Recherche: lead

Study Sites (1)

Hôpital Privé d'Antony

Antony, France

Location

MeSH Terms

Conditions

Knee Injuries

Condition Hierarchy (Ancestors)

Leg Injuries; Wounds and Injuries

Study Design

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

Study Record Dates

• First Submitted: December 13, 2022
• First Posted: December 21, 2022
• Study Start: April 15, 2022
• Primary Completion: May 30, 2023
• Study Completion: May 30, 2023
• Last Updated: April 18, 2024

Record last verified: 2024-04

Data Sharing

• IPD Sharing: Will not share

Locations

FR (1)