Less Invasive Pedicle Screw Instrumentation of Lumbar Spine Fractures

Abstract

The distinctive feature of the minimally invasive posterior dorsal instrumentation is not so much the less invasive placement of mono- or polyaxial pedicle screws, but rather the fact that it allows a genuine distraction and lordosis reduction, the real benefit of the procedure described here. However, this minimally invasive reduction requires a special instrumentation and the mandatory use of monoaxial pedicle screws, since only such screws can sustain the preload resulting from the reduction. The goals of the minimally invasive posterior instrumentation with S4 fracture reduction instruments are almost no soft tissue damage, because muscle attachments are not detached, same reduction results as in open procedures, same implants as for open procedures, reduced postoperative pain, shorter operation time, and negligible blood loss.