Clinical Evaluation of the ReLeaf Analgesic Infusion Catheter & Wound Drain

Inclusion Criteria: * Skeletally mature * Diagnosis of lumbar spine disease requiring an open, midline, instrumented posterolateral fusion with or without interbody support at one or two vertebral levels and laminectomy or laminotomy * Physically and mentally willing to comply with the study requirements * Signed the study informed consent Exclusion Criteria: * Lumbar spine disease requiring more than two levels of instrumentation * Any previous operative lumbar procedure, except discectomy or hemi-laminotomy performed a minimum of 2 years prior to current study surgery * Patients requiring iliac crest bone graft for the procedure * Intra-operative durotomy * Any duration of pre-operative morphine or morphine equivalent use exceeding 30 mg of morphine equivalents per day for longer than 3 months * Physically or mentally compromised (i.e., being currently treated for a psychiatric disorder, senile dementia, Alzheimer's disease, presence of alcohol or substance abuse) * Diagnosed with Severe Depression and on treatment * Active infection at the operative level or a symptomatic infection * Diagnosed systemic disease that would affect the subject's welfare or overall outcome of the research study (i.e. Paget's disease, renal osteodystrophy, Lupus etc) * Is pregnant or breast feeding * Has any active malignancy or spinal arthrodesis being performed for a tumor decompression * Has a known allergy to local analgesics * Pending litigation related to back pain or injury or Worker's Compensation