Table 3.

Characteristics of patients with secondary revision after conversion to H2

Number	Age in years	Gender	Side	Primary implant	Reason for primary revision	Secondary implant	Reason for secondary revision	Survival time in years	Surgical solution	Tertiary implant
1	60	Man	Left	H3	Pain or arthrofibrosis	H2	Pain or arthrofibrosis	0.4	Interpositional TTC-fusion	Pantanail
2	72	Man	Left	H3	Aseptic loosening	H2	Aseptic loosening	1.9	Exchange of tibial component	H2
3	58	Man	Left	H3	Pain or arthrofibrosis	H2	Pain or arthrofibrosis	0.8	Exchange of tibial component	H2
4	61	Woman	Right	H3	Pain or arthrofibrosis	H2	Cyst formation talar	0.3	Exchange of talar component, cyst grafting, cotton osteotomy	H2

H2 = Hintermann Series H2; TTC = tibiotalocalcaneal.