Systematic Review Protocol: The effect of injection therapies on surgery rates in persons with radicular pain from a herniated lumbar disc.

Protocol for a systematic literature review with the following review question: What is the effect of image-guided, percutaneous injection therapies on surgery rate (primary outcome), as well as physical functioning, pain level, health-related quality of life and adverse events caused by injection (secondary outcomes) in persons with radicular pain from a herniated lumbar disc? Includes 4 appendices.