Randomized Trial With an Observational Component of Non-operative Versus Operative Treatment for AO Type A3 Fractures

Patient must be between 18 and 65 years old and had an acute trauma with an AO type A3 burst
fracture (a spinal injury where one of the bony parts of the spine [vertebra] breaks due to
immediate and severe compression).

The purpose of this study is to compare surgery plus bracing versus bracing alone. Patients
will be followed for 10 years. The investigators will compare patients' x-ray outcomes and
clinical outcomes (i.e. how a patient is feeling and how a patient is able to do usual daily
activities) as well as patients' immediate and delayed medical and surgical side effects
between the 2 study arms. The goal of this study is to determine if treating patients with
surgery plus bracing is better than just bracing alone.

Inclusion Criteria:

1. Age 18-65 years

2. Acute trauma patient with AO Type A3.1-A3.3 fractures of T10-L2

3. Neurologically intact

4. TLICS score of 4

5. Women of childbearing potential must have a negative serum pregnancy test

Exclusion Criteria:

1. Severe poly-trauma (Injury Severity Score >15 and/or intubation required for > 24
hours)

2. Sepsis and/or organ failure

3. Prior instrumented arthrodesis of the thoracolumbar spine

4. Severe co-morbidities (e.g., heart, respiratory, or renal disease)

5. Recent history (<3 years) of concomitant spinal tumor or infection

6. Greater than single level fracture involvement (other than transverse process
fractures)

7. AO Type A3 fracture with associated load sharing score ≥7

8. ≥ 30 degrees regional kyphosis on standing

9. History of autoimmune (seronegative) spondyloarthropathy (i.e., ankylosing
spondylitis)

10. History of osteoporosis

11. Subjects who are pregnant or plan to become pregnant in the next 24 months. Patients
will be advised on the use of contraceptives during this time. Methods include
abstinence or two acceptable forms including condoms with spermicide, birth control
pills, injections, or an IUD.

12. Co-morbidity requiring medication that may interfere with bone or soft tissue healing
(i.e., oral or parenteral glucocorticoids, NSAIDs immunosuppressive agents,
methotrexate)

13. Severe morbid obesity (BMI > 40)

14. History of metal sensitivity/foreign body sensitivity

15. History of prior laminectomy at the fracture site

16. Associated scoliotic (> 10°) or pre-existing thoracolumbar kyphotic deformity

17. History of substance abuse (recreational drugs, prescription drugs or alcohol) that
could interfere with protocol assessments and/or with the subject's ability to
complete the protocol required follow-up

18. Prisoner