Study to Analyze the Effects of EBI OsteoGen™ on the Surgical Reconstruction of Tibia Non-unions

This clinical outcomes collection study is to analyze the effect of the EBI OsteoGen™ Direct
Current Stimulator upon surgical reconstruction of tibia nonunion (no visible progressive
signs of healing) fracture in a prospective database.

Inclusion Criteria:

1. Diagnosis of a tibia nonunion.

2. Male or female between ages of 18 and 75 years old, inclusive

Exclusion Criteria:

1. Subject has open wounds or underlying osteomyelitis.

2. Subject has associated multiple traumas, and/or fractures that are not anatomically
reduced or lose reduction at later time points.

3. If female, subject is pregnant, plans on becoming pregnant during the duration of this
clinical outcomes collection study or lactating.

4. Subject has an implanted unipolar pacemaker.

5. Subject has active cancer.

6. Subject has severe peripheral vascular disease (ABI <0.4)