A 24 year old otherwise healthy male was presented with a chief complaint of giving way in the left knee. MRI reported
complete anterior cruciate ligament (ACL) tearing. Arthroscopy showed ACL agenesis, ring-shaped lateral meniscus,
and an anomalous thick band extending from the anterior horn of the lateral meniscus to the intercondylar notch of the
lateral femoral condyle, which is known as the anterolateral meniscofemoral ligament (MFL). The MFL was attached
to the anatomic site of anteromedial bundle of ACL. ACL reconstruction surgery was performed using central 1/3 bone
tendon bone graft.
Practitioners should be aware that ACL reconstruction in lateral meniscofemoral ligament with associated ACL agenesis
is a treatment option in which the preservation of MFL, as the stabilizer of anterior horn of lateral meniscus, should be
considered during ACL reconstruction as a good treatment choice.
Level of evidence: V