Appropriate selection of patients with lumbar spinal stenosis for interspinous process decompression with the X STOP device

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✓With the aging of the population, the number of patients suffering from progressive lumbar spinal stenosis with symptomatic neurogenic intermittent claudication is projected to increase. Unfortunately, these patients are limited to a choice between nonsurgical conservative care and more invasive decompressive surgical procedures such as laminectomy with or without fusion. The X STOP interspinous process decompression system is a commercially available device that provides a minimally invasive alternative treatment, an intermediate option within the continuum of care for these patients. The X STOP is appropriate for patients with moderately severe functional impairment whose symptoms are exacerbated in extension and relieved in flexion. Implanted between the spinous processes without disrupting the normal anatomical structures, the X STOP limits narrowing of the spinal canal and neural foramina by reducing extension at the symptomatic level(s). In this report the author details the approved indications for use of the X STOP and discusses several illustrative cases.

Abbreviations used in this paper:AP = anteroposterior; MR = magnetic resonance; NSAID = nonsteroidal antiinflammatory drug; ZCQ = Zürich Claudication Questionnaire.

✓With the aging of the population, the number of patients suffering from progressive lumbar spinal stenosis with symptomatic neurogenic intermittent claudication is projected to increase. Unfortunately, these patients are limited to a choice between nonsurgical conservative care and more invasive decompressive surgical procedures such as laminectomy with or without fusion. The X STOP interspinous process decompression system is a commercially available device that provides a minimally invasive alternative treatment, an intermediate option within the continuum of care for these patients. The X STOP is appropriate for patients with moderately severe functional impairment whose symptoms are exacerbated in extension and relieved in flexion. Implanted between the spinous processes without disrupting the normal anatomical structures, the X STOP limits narrowing of the spinal canal and neural foramina by reducing extension at the symptomatic level(s). In this report the author details the approved indications for use of the X STOP and discusses several illustrative cases.

Abbreviations used in this paper:AP = anteroposterior; MR = magnetic resonance; NSAID = nonsteroidal antiinflammatory drug; ZCQ = Zürich Claudication Questionnaire.

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Contributor Notes

Address reprint requests to: Carl Lauryssen, M.D., Tower Orthopedics and Neurosurgical Spine, 8670 Wilshire Boulevard, Suite 202, Beverly Hills, California 90211. email: DrCl@Olympiamc.com.
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