Epiphyseal Sparing and Reconstruction by Frozen Bone Autograft after Malignant Bone Tumor Resection in Children

Figure 1

Illustration showing different methods and technique of freezing. (a) Free freezing (intercalary) in distal femur. There are two osteotomies and the tumor bearing bone is totally immersed in liquid nitrogen with no anatomical continuity with the host bone. (b) Pedicle freezing (intercalary) in the tibia. Also this figure shows the joint preservation technique through performing the osteotomy in subchondral bone. (c) Free freezing (hemicortical) in the tibia. The osteotomy line surrounds the lesion and the tumor bearing bone is freely frozen, while there is an anatomical continuity in the host bone proximal and distal to the tumor.

(a)

(b)

(c)