Pintauro Michael, Duffy Alexander, Vahedi Payman, Rymarczuk George, Heller Joshua
Department of Neurological Surgery, Thomas Jefferson University, 909 Walnut St, 3rd Floor, COB Bldg, Philadelphia, PA, 19107, USA.
Department of Neurosurgery, Tehran Medical Sciences Branch, Islamic Azad University, Tehran, Iran.
Curr Rev Musculoskelet Med. 2017 Jun;10(2):189-198. doi: 10.1007/s12178-017-9401-z.
Interspinous process devices (IPDs) are used in the surgical treatment of lumbar spinal stenosis. The purpose of this review is to compare the first generation with the next-generation devices in terms of complications, device failure, reoperation rates, symptom relief, and outcome.
Thirty-seven studies were included from 2011 to 2016. Device failure occurred at a mean of 3.7%, with a lower tendency to happen with next-generation IPDs. Reoperations occurred at a lower rate with the next-generation devices, with a mean follow up of 24 months (3.7% vs. 11.1%). The clinical outcome is not influenced by the type of IPD. The long-term functionality of these devices is questionable, with radiologic changes and recurrence of symptoms often seen by 2 years following implantation. Next-generation devices do not appear to be subject to the same "bounce back" effect of symptom re-emergence after several years.
棘突间植入装置（IPD）用于腰椎管狭窄症的外科治疗。本综述的目的是在并发症、装置故障、再次手术率、症状缓解和治疗结果方面比较第一代与新一代装置。
纳入了2011年至2016年的37项研究。装置故障平均发生率为3.7%，新一代IPD发生故障的趋势较低。新一代装置再次手术率较低，平均随访24个月（3.7%对11.1%）。临床结果不受IPD类型的影响。这些装置的长期功能存在疑问，植入后2年常出现影像学改变和症状复发。新一代装置似乎不会出现数年后症状再次出现的相同“反弹”效应。
