Information about a series of minimally invasive spinal surgery advances developed by Medtronic Sofamor Danek, which define a new direction for spinal surgery by allowing surgeons to perform surgery through incisions less than an inch in length while leaving muscle virtually intact. Products under the MAST banner include the CD HORIZON® SEXTANT™ Spinal System for spinal fusion, METRx™ MicroDiscectomy System for herniated discs and CD HORIZON® ECLIPSE® Spinal System for scoliosis.