The document discusses the ASPEN spinous process fixation system as an alternative to pedicle screws for spinal fixation and fusion. It provides indications for use, describes reduced muscle dissection compared to pedicle screws, and reviews clinical applications. Biomechanical testing results and clinical studies demonstrate fusion rates comparable to pedicle screws with quicker patient recovery. The ASPEN system offers a less invasive option than pedicle screws for certain patients.