Glucocorticoid Injection in Patients With Lumbar Radicular Pain

Low back pain is an important health problem that causes difficulties in daily living activities, loss of work performance and disability. Some patients with low back pain have radicular symptoms due to intervertebral disc herniation. Lumbar radiculopathy is characterized by radiating buttock and leg pain in a lumbar nerve root distribution. The pathophysiology of radiculopathy is related to compression of the nerve, as well as the local release of inflammatory cytokines. Systemic corticosteroids have been used for treatment of lumbar radicular pain for a long time. The effects of corticosteroids are related to their anti-inflammatory effects, which may help reduce swelling and related compression on the affected nerve. Corticosteroids can be used systemically (i.e. oral, intravenous, or intramuscular routes) or administered directly into spinal structures through injections. In the current study, the investigators aimed to demonstrate the efficacy of intramuscular betamethasone injection on pain, disability and health related quality of life in patients with lumbar radicular pain due to disc herniation. The investigators also aimed to determine the effects on electrophysiological findings.