
Abstract
A tibial spine avulsion fracture is an intra-articular fracture of the bony insertion of the ACL on the tibial plateau, most commonly seen in children and adolescents aged 8 to 14 years. Its incidence has been reported to be between 2% and 5% in the pediatric population, but it is rare in adults. The cyclops lesion is a fibrous proliferation of granulation tissue that forms a soft tissue nodule, limiting extension, and is one of the possible complications of the arthroscopic management of this type of fracture. We report the case of a 25-year-old patient who sustained a tibial spine avulsion fracture, underwent successful anatomical reduction arthroscopically, and subsequently developed extension loss in the postoperative period. Her MRI study revealed a cyclops lesion that required arthroscopic debridement.
Keywords
Cyclops - arthrofibrosis - tibial spine avulsion fracture - rigidity - lost extension