Table 1.

Patient demographics and clinical characteristics.

Case	Age, years	Sex	BMI, kg/m2	Prior arthroplasty procedures	Indication for revision following initial metaphyseal cone placement	Location of retained well-fixed cone
1	82	M	29.0	4	Aseptic loosening	Femur
2	77	F	19.5	3	Periprosthetic femur fracture and aseptic loosening	Tibia
3	55	F	28.0	3	Tibial component osteolysis and ligamentous laxity	Femur
4	45	M	35.9	2	Mechanical prosthesis failure	Femur
5	59	F	33.8	2	Aseptic loosening of tibial component and small lateral buccal fracture of tibia	Tibia
6	66	M	32.6	2	Recurrent progressive ligamentous laxity	Femur

BMI, body mass index.