Ultrasound as Adjunct Therapy for Increasing Fusion Success After Lumbar Surgery

Inclusion Criteria:

- The subject has a documented diagnosis of degenerative disc disease with up to Grade I
spondylolisthesis at the target level

- Requires spinal fusion of a single level disc space (L2 to S1) with the use of local
bone graft.

- Requires a posterolateral fusion procedure with or without an interbody fusion
procedure using a posterior approach

- The subject has failed non-operative treatment lasting at least 6 months.

Exclusion Criteria:

- Requires spinal fusion at more than one lumbar level.

- Is pregnant, is lactating or plans to become pregnant before discontinuation of study
treatment