EC Orthopaedics

Cyclops syndrome is a postoperative complication of anterior cruciate ligament (ACL) reconstruction caused by a fibroproliferative nodule in the intercondylar notch that limits knee extension. We report a 27-year-old male athlete with anterior knee pain and loss of extension six months after ACL reconstruction. MRI showed a well-defined nodule anterior to the graft, consistent with a cyclops lesion. Arthroscopic excision confirmed a fibrous nodule, and full extension was restored after rehabilitation. Early MRI diagnosis and arthroscopic removal provide excellent outcomes and prevent long-term functional impairment.

 Keywords: Cyclops Syndrome; MRI; Arthroscopy

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