Tehran University of Medical Sciences Journal of Orthopedic and Spine Trauma 2538-2330 10 1 2024 04 01 39 41 Farzad Amouzadeh Omrani ssociate Professor, Department of Orthopedic and Trauma Surgery, Shahid Beheshti University of Medical Sciences, Tehran, Iran Kourosh Kharkan Ghamsari Orthopedic Surgeon, Joint, Bone, Connective tissue, and Rheumatology Research Center (JBCRC), Department of Orthopedics, 5th Azar Hospital, Golestan University of Medical Sciences, Gorgan, Iran Mojtaba Baroutkoub Assistant Professor, Department of Orthopedic and Trauma Surgery, Shahid Beheshti University of Medical Sciences, Tehran, Iran Sina Afzali Orthopedic Surgeon, Department of Orthopedic and Trauma Surgery, Shahid Beheshti University of Medical Sciences, Tehran, Iran Saeed Kookly Assistant Professor, Joint, Bone and Connective Tissue, Rheumatology Research Center (JBCRC), Department of Orthopaedics, 5th Azar Hospital, Golestan University of Medical Sciences, Gorgan, Iran 2022 11 14 2024 03 13 Background: Only 3% of all proximal tibial fractures result in an avulsion fracture of the tibial tuberosity. It is often seen in youngsters between the ages of 3 and 6 and is less frequent after puberty. Case Report: A 15-year-old boy was presented with severe left knee pain following a high jump. X-ray and computed tomography (CT) scan showed a tibial tuberosity fracture with joint surface involvement. The damaged part was fixed with a 4.5mm cannulated screw and washer, reinforced with 2 SwiveLock anchors. In the sixth week, full weight bearing and full range of motion (ROM) were obtained. Conclusion: The primary objective in managing tibial tubercle fractures is the restoration of both the extensor mechanism and the integrity of the joint surface in cases where they have been compromised. https://jost.tums.ac.ir/index.php/jost/article/view/437 https://jost.tums.ac.ir/index.php/jost/article/download/437/351