The primary objective of this study is to assess whether or not low level laser therapy (LLLT) decreases pain in post-operative orthopedic patients following lumbar fusion surgery.

Lumbar fusion surgery patients typically experience significant post-operative pain for several weeks and their rehabilitation does not start until 8 - 12 weeks postoperatively. We hypothesize that LLLT beginning 4 weeks postoperatively will provide significant reduction in postoperative pain.

Inclusion Criteria

• Age > 18 and < 85 years
• Post-operative lumbar fusion surgery
• Currently resides within 100 miles of UMC

Exclusion Criteria

• Pregnant
• Pacemaker
• Medications that have heat or light-sensitivity contraindications (such as: steroids, some antibiotics)
• Two or more cardiac risk factors
• Intraoperative complications
• Wound infection
• Spinal fluid leakage
• Open wound