Supracondylar Pinning Antibiotic Stewardship (SPAS) Trial

Inclusion Criteria: * Closed, isolated extension type supracondylar humerus fracture, Gartland type 2, 3, or 4 Exclusion Criteria: * Inability to secure consent * Open fractures * Polytrauma * Pathologic fractures * Flexion type fracture * Associated compartment syndrome * Allergy to cefazolin which precludes its use * Skeletally mature patients or patients greater than 18 years of age * Medical comorbidities including immunocompromised state, active infection, and any associated bone, endocrine, or neoplastic conditions contributing to local or generalized abnormal bone mineralization. * Inability to attain satisfactory reduction and fixation via closed manipulation, resulting in conversion to open reduction