Used after wide resection of distal femur/proximal tibia tumors. Modular systems allow intraoperative flexibility and immediate stability. Expandable designs used in children to accommodate growth. Advantages: early mobilization, good function; Disadvantages: high cost, infection risk. Survival: 70–80% implant survival at 10 years; complications include loosening, mechanical failure.
What is the primary oncological indication for the use of modular mega-prosthesis in the knee?
Which of the following is a major advantage of using modular mega-prostheses?
What is the recommended neoadjuvant chemotherapy regimen for osteosarcoma?
Which of the following complications is most commonly associated with modular mega-prostheses?
In the context of modular mega-prostheses, what does the term 'expandable designs' refer to?
What is the typical implant survival rate at 10 years for knee modular mega-prostheses?
Which surgical principle is paramount when performing limb salvage using a modular mega-prosthesis?
Which of the following is a common method to provide soft tissue coverage after distal femoral replacement?
What type of modular mega-prosthesis is most commonly performed?
What is the significance of Huvos grading in the context of neoadjuvant chemotherapy for osteosarcoma?
