OP Device vs. Bone Autograft for the Treatment of Tibial Nonunions

Inclusion Criteria: 1. Patients must show radiographic skeletal maturity 2. Documented evidence of previous fracture management 3. Nonunion in the tibia and candidate to receive bone autografts and intramedullary (IM) Nail fixation 4. Nonunion gap must not exceed half the diameter of the bone at the site of fracture, as assessed radiographically prior to study treatment Exclusion Criteria: 1. Patients who do not have adequate vascularity to permit healing 2. Patients with inadequate skin coverage 3. Patients with chronic use of steroidal medications 4. Patients with active infection systemically or at the site of nonunion.