3D Reconstruction of the Knee Based on MRI (IMAGENOU3D)

GCS Ramsay Santé pour l'Enseignement et la Recherche

Status

Enrolling

Conditions

ACL Tear

Treatments

Radiation: Scanner

Study type

Interventional

Funder types

Other

Identifiers

NCT05912777

2023-A00531-44

Details and patient eligibility

About

ACL tear is a pathology of the knee quite common in athletes mainly caused by a twisting movement. The diagnosis of ACL tear can be confirmed by MRI (magnetic resonance imaging). This method makes it possible to visualize the inside of the knee and to diagnose lesions associated with rupture of the ACL (in particular meniscal lesions).

Obtaining a 3D model of patients' joints from a imaging is of growing interest to plan the gesture in preoperative but also to evaluate this gesture postoperatively. In orthopedic surgery, the baseline preoperative imaging is MRI. However, 3D models are generally obtained from a scanner-like imaging.

In this context, obtaining a 3D model from MRI imaging would make it possible to have a model that fits into the care pathway patients, without subjecting them to irradiation and visualizing anatomical structures not visible on CT.

However, the geometric precision and the reproducibility of the 3D reconstructions of joints reconstructed from an MRI remains unknown and must be evaluated to consider their clinical use.

Full description

Rupture of the anterior cruciate ligament (ACL) is a pathology of the knee quite common in athletes. The main cause of an ACL tear is, in the majority of cases, an indirect trauma, caused by a twisting movement (example: the foot remains blocked on the ground while the knee rotates in or out).

Sometimes the clinical examination of the ACL tear may not be conclusive.This is usually the case when the patient's knee swelling is too large and that clinical tests are then difficult to carry out. The diagnosis of ACL tear can therefore be confirmed by MRI (magnetic resonance imaging). This method makes it possible to visualize the inside of the knee. In addition, the realization of the MRI will also help to diagnose lesions associated with rupture of the ACL and in particular meniscal lesions. This exam has become indispensable and is carried out in the vast majority of cases.

Obtaining a 3D model of patients' joints from a imaging is of growing interest. These 3D models allow particular to plan the gesture in preoperative but also to evaluate this gesture postoperatively. In orthopedic surgery, for patients suffering from an ACL tear, the baseline preoperative imaging is MRI. However, 3D models are generally obtained from a scanner-like imaging. This imagery has the advantage of presenting a very good definition of bone tissue but it is not part, for a large number of patients, routine preoperative imaging. It is irradiating and does not allow easy highlighting of other structures such as cartilage or menisci.

However, the geometric precision and the reproducibility of the 3D reconstructions of joints reconstructed from an MRI remains unknown and must be evaluated to consider their clinical use. This is the purpose of this research.

Enrollment

50 estimated patients

Sex

All

Ages

18 to 45 years old

Volunteers

No Healthy Volunteers

Inclusion criteria

Patient, male or female, aged between ≥ 18 and ≤ 45 years old
Patient eligible for ACL reconstruction
Patient with an MRI performed at the SANTY orthopedic center or according to the protocol defined by the radiologists of the orthopedic center SANTY
Patient with an MRI performed ≥ 3 weeks after ACL tear
Affiliated patient or beneficiary of a social security scheme
French-speaking patient who signed an informed consent

Exclusion criteria

Patient with a surgical history on the affected knee
Patient with a multi-ligament lesion
Patient already included in another study
Protected patient: adult under guardianship, curatorship or other protection legal, deprived of liberty by judicial or administrative decision
Patient hospitalized without consent