A comparison of femoral tunnel placement in ACL reconstruction using a 70° arthroscope through the anterolateral portal versus a 30° arthroscope through the anteromedial portal: a pilot 3D-CT study.

ABSTRACT:

Background

Graft malposition is a risk factor for failure of anterior cruciate ligament reconstruction. A 70° arthroscope improves visualisation of the medial wall of the lateral femoral condyle without switching portals. We investigated whether the use of this arthroscope affected the accuracy and precision of femoral tunnel placement.

Methods

Fifty consecutive adult patients were recruited. Following one withdrawal and two exclusions, 47 patients (30 in group 1 (70° arthroscope), 17 in group 2 (30° arthroscope)) underwent three-dimensional computed tomography imaging using a grid-based system to measure tunnel position.

Results

No difference was found in the accuracy or precision of tunnels (mean position: group 1 = 33.3 ± 6.0% deep-shallow, 27.2 ± 5.2% high-low; gr

SUBMITTER: Kosy JD 

PROVIDER: S-EPMC7219201 | biostudies-literature | 2020 Apr

REPOSITORIES: biostudies-literature