MODULAR HINGED LONG-STEM KNEE ENDOPROSTHESIS (MEGAPROSTHESIS) IN THE TREATMENT OF LEFT PROXIMAL TIBIAL GIANT CELL TUMOR: A CASE REPORT AND LITTERATURE REVIEW

Objective: To present a case involving the surgical treatment of a left proximal tibial giant cell tumor with wide resection and reconstruction using a modular hinged long-stem knee prosthesis, and to assess the treatment outcomes after six months of follow-up. Methods: This is a single case study involving a patient with giant cell tumor of the left proximal tibia who underwent wide resection and reconstruction with a modular hinged long-stem knee prosthesis. The patient was followed up for six months at the Arthroplasty and Orthopedic Oncology Department, Center for Trauma and Orthopedics of Can Tho Central General Hospital, from January 2024 to June 2024. Results: The case demonstrates the importance of wide resection in tumor management. Reconstruction with a modular hinged long-stem knee prosthesis effectively reduces the risk of tumor recurrence, mitigates the potential for secondary osteoarthritis, and minimizes complications related to joint fusion. This approach also has the potential to lower treatment costs and shorten hospital stays. Conclusion: Long-stem hinged implants in total knee arthroplasty help prevent bone loss and improve function. Wide local excision with long-stem hinged modular prosthesis can effectively treat proximal tibial giant cell tumors and reduce recurrence.