DuraGen Plus® Adhesion Barrier for Use in Spinal Surgery

Inclusion Criteria (Abstracted from clinical protocol): * Patients with radicular pain requiring single-level, lumbar hemi-laminectomy or hemilaminotomy procedures with discectomy in the lower lumbar spine * Require initial open lumbar surgery for extruded, prolapsed or bulging intervertebral discs * Requires removal of herniated disc fragment Exclusion Criteria (Abstracted from clinical protocol): * Current or historic open traumatic injury to the spine * Any previous surgery to the lumbar spine or percutaneous tissue destruction or ablation procedures * Women who are nursing, women who are pregnant and women who are planning to become pregnant during the time of the study * Any spinal conditions or systemic diseases that would preclude the patient from participation in the clinical trial * Clinically significant structural disorders * Known positive for HIV * Insulin-dependent Diabetes Mellitus patients * Morbid obesity (Body Mass Index greater than or equal to 40 kg/m2) * History of alcohol or drug abuse within 2 years prior to randomization