Mohammad Razi - Department of Orthopedic Surgery, Rasoul Akram Hospital, Iran University of Medical Sciences, Tehran, Iran
Hamed Mazoochy - Department of Orthopaedic Surgery, Atieh private Hospital, Tehran, Iran
Elaheh Ziaei Ziabari - *Harvard Medical School, Boston, USA * Iran University of Science and Technology, Tehran, Iran
Haleh Dadgostar - Sports Medicine Department, Rasoul Akram Hospital, Iran University of Medical Sciences, Tehran, Iran ۶ Bone and Joint Reconstruction Research Center, Shafa Orthopedic Hospital, Iran University of Medical Sciences, Tehran, Iran

A 24 year old otherwise healthy male was presented with a chief complaint of giving way in the left knee. MRI reportedcomplete 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 thelateral femoral condyle, which is known as the anterolateral meniscofemoral ligament (MFL). The MFL was attachedto the anatomic site of anteromedial bundle of ACL. ACL reconstruction surgery was performed using central 1/3 bonetendon bone graft.Practitioners should be aware that ACL reconstruction in lateral meniscofemoral ligament with associated ACL agenesisis a treatment option in which the preservation of MFL, as the stabilizer of anterior horn of lateral meniscus, should beconsidered during ACL reconstruction as a good treatment choice.Level of evidence: V

Anterior lateral meniscofemoral ligament