Simple Bone Cysts in Kids

Inclusion Criteria: * Patients with a confirmed simple bone cyst in a long bone (ie. arm or leg) within last 3 months * At least 3 weeks must have elapsed since last fracture * At least 3 months must have elapsed since last cyst treatment * Patients and/or their legal representatives willing to provide written informed consent (and assent, when appropriate) * Patients with stabilizing implants in the bone where the cyst is located Exclusion Criteria: * Patients with bone disease (ie. osteogenesis imperfecta, cancer, osteoporosis, Paget's disease) * Pregnant or breastfeeding female * Patients with cysts crossing the growth plate (area where bone grows)