Table 1.

Modular endoprothetic failure classification

Main category	Failure mode	Classification
Mechanical failure	Soft-tissue failure	Type I
	Aseptic loosening	Type II
	Structural failure	Type III
Non-mechanical failure	Infection	Type IV
	Tumour progression	Type V

Henderson E, Groundland J, Marulanda GA, et al. Peri-operative expectations with revision of lower extremity segmental megaprosthesis for tumor. Podium presented at the American Academy of Orthopedic Surgeons 2010 Annual Meeting; March 9-13, 2010; New Orleans, LA. Podium No. 409