Simultaneous bilateral ganglion cysts of the anterior cruciate ligaments

Posterolateral Bundle Resection for an Anterior Cruciate Ligament Ganglion Cyst

“… 3 , 4 , 6 , 7 , 8 Moreover, the large majority of these cysts remain asymptomatic, and only 10% of cases manifest symptoms, such as vague knee pain, limitation of range of motion or even recurrent effusions. 2 , 3 , 5 , 8 , 9 , 10 , 11 The exact cause and pathogenesis of ACL ganglion cysts still remain unclear. It is hypothesized that displacement of the synovium into the surrounding tissue during development, herniation of synovium into the surrounding tissues, or degenerative and proliferative changes of pluripotent mesenchymal cells following trauma may be causative.…”

“… 1 Since then, numerous cases have been reported in the literature. 2 , 3 The incidence of ACL ganglion cysts is between 0.6% and 2% in arthoscopic studies and between 1 and 1.3% on magnetic resonance imaging (MRI) studies. 4 , 5 , 6 , 7 , 8 , 9 One of the reasons for this low prevalence is assumed to be the asymptomatic nature of these cysts.…”

“…Indeed, only 10% of cases are symptomatic, and these patients present with vague pain in the knee, unexplained knee effusions, or limitations to activity without any history of real trauma. 2 , 3 , 8 , 10 , 11 , 12 …”