Controversies about Interspinous Process Devices in the Treatment of Degenerative Lumbar Spine Diseases: Past, Present, and Future

<table>Intraoperative image shows the X-Stop interspinous device implanted cranially to a posterior fixation with pedicle screws, to avoid the topping off phenomenon.</table>

BioMed Research International

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Figure 2

Figure 2: Controversies about Interspinous Process Devices in the Treatment of Degenerative Lumbar Spine Diseases: Past, Present, and Future 