Article thumbnail

The femoral insertions of the anteromedial and posterolateral bundles of the anterior cruciate ligament: a radiographic evaluation

By Hanno Steckel, Volker Musahl and Freddie H. Fu

Abstract

The aim of this radiographic study was to visualize the femoral insertion sites of the anteromedial (AM) and posterolateral (PL) bundle of the anterior cruciate ligament (ACL) on lateral radiographs in different angles of knee flexion to gain better understanding for arthroscopic femoral tunnel placement in ACL double bundle reconstruction. Four fresh cadaveric knees with an intact ACL were dissected to isolate the AM and PL bundle of the ACL. We obtained lateral radiographs of each knee over the range of 0°–90° flexion in 30° increments after painting the bundles with a radiopaque tantalum powder. The center of the radiographically marked femoral insertion was defined for each bundle on the lateral roentgenogram. We analyzed the relationship of knee flexion and the projection of the relative position of the femoral insertion sites of both bundles of the ACL on the lateral roentgenogram. The centre of the PL bundle visualized more anterior and distal than the centre of the AM bundle with the knee held in 90° flexion. The centers of the AM and PL bundle were horizontally aligned when the knee was flexed over 90°. The resulting images allow a radiographic description of the femoral insertion sites of both bundles in different angles of knee flexion. It is essential to be aware of the degree of knee flexion when drilling the femoral tunnels

Topics: Knee
Publisher: Springer-Verlag
OAI identifier: oai:pubmedcentral.nih.gov:3085733
Provided by: PubMed Central

To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.

Suggested articles

Citations

  1. (2000). A comparison of results in middle-aged and young patients after
  2. (1983). Anatomy of the anterior cruciate ligament.
  3. (2001). Anterior cruciate ligament reconstruction. A prospective randomized study of three surgical methods.
  4. (1997). Femoral insertion of the ACL. Radiographic quadrant method.
  5. (1991). Functional anatomy of the anterior cruciate ligament. Fibre bundle actions related to ligament replacements and injuries.