Chondroblastoma of the distal femur - management with excision and allograft reconstruction

Abstract

Chondroblastoma is a rare primary benign
tumor of bone commonly affecting
older children around the knee, hip and
shoulder. The tumor usually involves the
epiphysis before closure of the physis
.Chondroblastoma can be treated
with simple curettage, bone grafting, and
possible cementation using similar techniques
as for giant cell tumour surgery.
These techniques are however plagued
by problems such as recurrence, growth
disturbances with limb length discrepancy
and resultant deformity. We report
a 16 years old teenage girl who presented
to us with chondroblastoma of the
distal femur which was managed with
wide excision of the bone lesion and allograft
bone grafting using cadaveric
femoral head fixed in place with a plate
and screws . This resulted in good integration
and good function and range of
motion.