TABLE II.

Procedures Performed Before Implantation of the Primary Finn/OSS Rotating-Hinge Knee Prosthesis and Reasons for Failure

Procedure	Reconstruction*	Reason for Revision	No.
Wide resection	Allograft or other prosthesis	Infection	11
Wide resection	Other prosthesis	Broken implant, aseptic loosening	8
Wide resection	Other prosthesis	Periprosthetic fracture	3
Wide resection	Allograft	Nonunion	3
Curettage of giant-cell tumor	Cement	Osteoarthritis	1

^*“Allograft” means a massive allograft to reconstruct the bone defect, and “other prosthesis” includes several prostheses other than the Finn/OSS, such as Lane-Burstein, Stanmore, Global Modular Replacement System, and GUEPAR devices.