A selective nerve block is used to inject medicine around a specific spinal nerve. The medication is mostly a local anesthetic or a slow-release steroid. The amount of instant pain relief from the local anesthetic signifies the extent to which the nerve is causing your pain. The information received from this study is helpful in deciding what treatment option is suitable for you. The steroid works as an anti-inflammatory to lessen irritation of the nerve. This can grant enduring pain relief so that a therapy program can be started. Although there is no permanent cure for osteoarthritis, treatment options like above can reduce the rate of worsening.View Thread