Current concepts in total femoral replacement

Table 1 Types of total femoral replacement prostheses

Feature	Intramedullary TFR system	Tumor-style TFR system
Basic design	Modular hip femoral component; Constrained knee femoral component with customized intercalary segments; May require strut allografts and cerclage cables	Modular and available in multiple lengths
Femoral bone stock	Possibility of preservation; can maintain muscle attachment	Absent
Distal femur resection	Can preserve distal femur or remove femoral component using standard revision techniques	Entire distal femur can be removed by subperiosteal dissection (less bleeding)
Tibial component	Suitable for constrained condylar articulation	Suitable for rotating hinge articulation

TFR: Total femoral replacement.