Endoscopically and Fluoroscopically Assisted Curettage and Bone Grafting of the Navicular Bone Cyst.

Simple bone cyst is a common tumorlike lesion of the bone and can involve the bones of the foot. It is usually asymptomatic but can also present with pain or pathologic fracture. The purpose of this technical note is to describe the uni-osseous portal approach of endoscopic curettage and bone grafting of simple bone cyst of the navicular bone. The single-portal approach reduces the risk of iatrogenic fracture of the navicular bone. This is indicated for painful bone cyst of the navicular bone resistant to conservative treatment. It is contraindicated in multiple septated cysts, the presence of pathologic fracture, or the presence of aggressive cystic lesions.