Study of the Isometry of the Anterior Cruciate Ligament From the Center of the Native MRI Insertion Reported on Dynamic Scanner

Status

Completed

Phases

Unknown

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT06996145

Acronym

PLANISOLCA

Enrollment

Registered

2025-05-30

Start date

2024-11-14

Completion date

2026-01-30

Last updated

2026-03-27

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Anterior Cruciate Ligament (ACL), Reconstruction, Software

Keywords

anterior cruciate ligament, reconstruction, software, planning, tunnel, isometry, navigation

Brief summary

In anterior cruciate ligament (ACL) reconstruction, navigation and robotic assistance now provide the possibility of precise positioning of the tunnels. The challenge is therefore to carry out isometric preoperative planning which can be carried out with robotic or navigation assistance. In the classic reconstruction technique this isometry is assumed by positioning the tunnels on the center of the native ACL footprints. However, studies cast doubt on this hypothesis. In this work, the investigators will study the isometry of the center of the native footprints on a dynamic 4D scanner in order to obtain the variation in the distance between the centers of the native footprints during a knee flexion cycle. This study is part of a larger project. the objective is, if the absence of isometry of the center of the native impressions is confirmed, to develop software assistance which will help the surgeon plan preoperatively an isometric reconstruction. The hypothesis is that the techniques based on the center of the native footprints does not allow isometric reconstruction.

Interventions

OTHERdynamic 4D scanner

dynamic 4D scanner

Study design

Allocation

Intervention model

SINGLE_GROUP

Primary purpose

OTHER

Masking

NONE

Eligibility

Sex/Gender

ALL

Age

18 Years to No maximum

Healthy volunteers

Yes

Inclusion criteria

* Healthy volunteers aged 18 or older * Signed informed consent * Affiliation to a social security system * Negative pregnancy test for women of childbearing age

Exclusion criteria

* Volunteer having already undergone knee ligament reconstruction or having peri- or intra-articular knee fractures * Volunteers for whom ligamentoplasty would not have been the therapeutic option chosen in the event of an ACL rupture * Pregnant woman * Volunteer under guardianship or curators, under the protection of justice or deprived of public law. * Minor volunteer * Contraindication to MRI or scanner

Design outcomes

Primary

Measure	Time frame	Description
variation in length of the ACL	15 days	Study of the variation in length of the ACL (isometry) during knee flexion in 4D imaging calculated from the center of the natural footprints of the ACL.

Countries

France

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Mar 28, 2026