Department of Surgery, Greenwood Leflore Hospital, Greenwood, Mississippi, USA.
J Neurosurg Spine. 2010 Feb;12(2):210-3. doi: 10.3171/2009.9.SPINE09144.
Interspinous process spacers have recently become available for treatment of symptomatic lumbar spinal stenosis. To date, there have been few data regarding the causes of failure. The authors present 2 cases in which there was erosion of the spinous processes adjacent to the interspinous process spacers. In 1 patient, the recurrence of symptoms was likely related to the erosive changes. Such abnormal changes allow settling of the posterior spinal elements and probably results from continued motion at the treated levels.
棘突间撑开器最近已可用于治疗有症状的腰椎椎管狭窄症。迄今为止，有关失败原因的数据很少。作者介绍了 2 例相邻棘突间撑开器处棘突侵蚀的病例。在 1 例患者中，症状的复发可能与侵蚀性改变有关。这种异常改变允许后部脊柱结构的沉降，可能是由于治疗节段的持续运动所致。
