A spinal surgical system comprising a plurality of surgical components for cooperating with a electrosurgical handpiece comprising an elongated tubular member housing an electrode, with the tubular member configured to fit within and be extended down a standard sized cannula in a MIS procedure. The system components comprise one or more cannulas, straight or beveled one or more guide wires, with and without pointed ends for piercing tissue a tapered dilator a trephine and one or more depth control stops for mounting on the cannula for monitoring its depth. The system is especially useful for performing a discectomy.
