Fig. 4

Radiographs of a 10-year-old boy who presented with pathological fracture of the right humerus. a-b Anteroposterior and lateral radiograph on admission. c-d MRI indicates a big bone cyst in humerus. e-f After the operation, postoperative 1 weeks Radiographs show a good position of the fixation. g-h At 1 month after surgery, an accident is happened, posteroanterior X-ray shows a valgus deformity and a secondary fracture in the cyst region. i-j An”O″ shaped cast fixation was done after reduction in outpatient clinic, X-ray shows a valgus deformity. k-n At the interval points of postoperative 6 weeks, 2 months, Radiographs show a valgus deformity. o-p Radiographs show complete cyst healing while there is a valgus deformity, although the position of photograph was not satisfactory, there was no functional and visual defects