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Excessive postoperative pain always occurs after Discectomy/ Micro-discectomy due to muscle trauma and necrosis (death of muscles). During Discectomy/ Micro-discectomy the muscles are torn off the spine by the surgeon in order to get down to the disc. The dying muscles cause severe postoperative pain that always requires opioid painkillers and muscle relaxers. Opioid painkillers are highly addicting, cause tolerance, abuse and even death from breathing failure.