Risks and Consequences of Using the Transportal Technique in Reconstructing the Anterior Cruciate Ligament: Relationships between the Femoral Tunnel, Lateral Superior Genicular Artery and Lateral Epicondyle of the Femoral Condyle.

OBJECTIVE Define a security zone to avoid possibles vascular and ligamentar complications during anterior cruciate ligament reconstruction. METHODS Arthroscopic reconstruction using the transtibial and transportal technique in cadaver knees was performed followed by dissection and measurement of the distance between the femoral tunnel and the proximal attachment of the lateral collateral ligament and the femoral tunnel and the lateral superior genicular artery. RESULTS The measure of the analysed distances show us an aproximation between the major branch of the lateral superior genicular artery and the femoral insertion of the colateral lateral ligament and the femoral tunnel during the transportal technique. CONCLUSION We realize that the use of technical ship it to arthroscopic ACL reconstruction has a higher probability of injury to the lateral geniculate artery and insertion of the lateral collateral ligament, promoting post-surgical complications such as instability of the knee, osteonecrosis of the femoral condyle and ligamentização graft.