Abstract
Interspinous Posterior Device (IPD) is a term used to identify a relatively recent group of implants used to treat lumbar spine stenosis with the presumed aim of a dynamic motion control systems. In the last 10 years there was a very large use of these implants. Despite this, no long-term clinical follow-up are available. In the literature is evident the high rate of reoperation, recurrence of symptoms and progression of degenerative changes. But his main question is: if these devices are effectively a miracle cure for the common problem of the lumbar spinal stenosis, why actually the use of IPD remains extremely controversial and should be investigated further?
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