Erschienen in:
22.03.2017 | Motion Preserving Spine Surgery (C Kepler, section editor)
Interspinous implants: are the new implants better than the last generation? A review
verfasst von:
Michael Pintauro, Alexander Duffy, Payman Vahedi, George Rymarczuk, Joshua Heller
Erschienen in:
Current Reviews in Musculoskeletal Medicine
|
Ausgabe 2/2017
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Abstract
Purpose of review
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.
Recent findings
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.
Summary
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.