Topical Lidocaine Patch in Low Back Pain

Inclusion Criteria: * Non-radicular LBP pain for ≤12 months (non-radicular defined as LBP that does not radiate below the mid-buttock and with no sensory symptoms in the leg) * Had LBP as the primary source of pain. Patients may have had mild to moderate spinal stenosis and no radicular symptoms * Had an average daily pain intensity score of \>4 on a 0 to 10 scale, with 0 being no pain and 10 being pain as bad as the patients have ever imagined (Question 5 of BPI) within 24 hours prior to the screening visit. * Had a normal neurological examination, including: * Motor strength * Sensory testing (light touch, pinprick, and vibration) * Deep tendon reflexes Patients were eligible for participation in the long-term chronic (\>12 months) group of the study if they also: * Had LBP for greater than one year. Patients may have had any of the following: lumbar degenerative disc disease, internal disc disruption, mild-to-severe spinal stenosis, degenerative scoliosis and spondylolisthesis, facet arthropathy Exclusion Criteria: * Had a history of greater than one back surgery or one back surgery within 3 months of study entry * Had severe spinal stenosis and radicular symptoms * Had any other chronic pain condition that, in the opinion of the investigator, would have interfered with patient assessment of LBP relief * Had received an epidural steroid/local anesthetic injection within 2 weeks prior to study entry * Had received trigger point injections within 2 weeks prior…