Arthroscopic excision is the treatment of choice
Asymptomatic cruciate ligament ganglion cysts are usually managed with clinical follow-up. For patients with symptomatic cysts, ultrasound- or CT-guided percutaneous cyst aspiration may temporarily improve symptoms, but recurrence rates have not been well studied.2,6,9,10 Additionally, accessibility to cysts in this location via these approaches is limited. Arthroscopic excision of the cyst is the treatment of choice for symptomatic cases.1,2,5,6,10
Our patient underwent arthroscopic cyst resection, which resulted in complete resolution of his symptoms. In 3 months, he returned to his regular physical activities with no pain or discomfort. One year later, he remained asymptomatic.
THE TAKEAWAY
Cruciate ligament ganglion cysts are a rare cause of posterior knee pain. An MRI is the best diagnostic modality to evaluate and confirm the diagnosis, as well as rule out other pathologies. The treatment of choice for symptomatic cases is arthroscopic excision of the cyst.