A Rare Case of Chondroblastoma with Revision After Graft Rejection_{A Case Report}

We present a rare case of calcaneal chondroblastoma with subsequent surgical revision after graft rejection in a 13-year-old boy. Complications were encountered after the injectable bone graft filler was placed in the calcaneus after curettage. With noted subsequent sinus tract formation, revision surgery was performed that involved dissection of the sinus tract, removal of bone void filler, and application of demineralized bone matrix sponge human allograft soaked in vancomycin-impregnated saline. Sixteen weeks after the revision surgical intervention, the patient resumed normal athletic activities without pain or restrictions. One and a half years after the initial surgery, the patient had complete resolution of the calcaneal cyst and was discharged.