2023 ISAKOS Biennial Congress ePoster
Using Three-Dimension Magnetic Resonance Imaging Of The Intact Knee To Identify Expected Femoral And Tibial Tunnel Position In Anatomic Single Bundle Anterior Cruciate Ligament
NAM TU VU, MD, Hanoi VIETNAM
Minh Ngoc Ho, MD, Hanoi VIETNAM
My Than, MSc, Hanoi VIETNAM
NANG SY QUYEN VO, MD, Hanoi VIETNAM
Toan Dinh Duong, MD, PhD, Hanoi VIETNAM
Trần Trung Dũng, Professor, MD, PhD, Hanoi City VIETNAM
VinUniversity and Vinmec Healthcare System, Hanoi, VIETNAM
FDA Status Cleared
Summary
Using three-dimension magnetic resonance imaging of the intact knee to identify expected femoral and tibial tunnel position in anatomic single bundle anterior cruciate ligamen
ePosters will be available shortly before Congress
Abstract
Background
There have been many studies that based on the anatomy and magnetic resonance image to determine the central position of the ACL. These studies usually focus on determining the center of the whole ACL footprint or the center of AM and PL bundles. However, in surgical practice, what surgeons really desire are the expected center of femoral and tibial tunnels, which have not been researched carefully before.
Objectives :
31 adult patients (21 male and 10 female) with indications of ACL reconstruction due to ACL tear in one knee and the other knee is intact.
Study Design & Methods :
A descriptive study was carried out using three-dimension magnetic resonance imaging (3D MRI). We took 3D MRI using Hanâ€TMs protocol of the intact knee and then the center of tunnels were identified by quadrant method. The femoral tunnel is determined on sagittal plane and based on Pearleâ€TMs I.D.E.A.L concept. On the other hand, the tibial tunnel is identified on axial plane by using modified Parkinsonâ€TMs method.
Results
The average age of 31 patients is 29.4±6.71 (18-42), with 21 male and 10 female. The location of the femoral tunnel center is 29.5±1.59% (27-34) and 25.9±2.31% (20-30%), deep-shallow and high-low respectively. In the tibial plateau, the center of tibial tunnel is positioned at 44.8±1.45% (42-48%) on mediolateral direction and 38.2±1.66% (36-42%) on anteroposterior direction. There was not any significant gender difference recognized in the center of the femoral and tibial tunnel positions in this study.
Conclusions
The expected femoral and tibial tunnel center locations determined on 3D MRI of the intact knee in this study
are comparable to other studies. The result can be valuable parameters when being compared and evaluated with the postoperative tunnel locations of the injured knee.