Lumbar Spinal Stenosis Minimally Invasive Treatment with Bilateral Transpedicular Facet Augmentation System

Abstract

Minimally invasive PDS Percudyn System™ has effectively improved the clinical setting of 83 % of highly selected patients treated, delaying the need for traditional surgical therapy.

The results of a consecutive series of dynamic posterior stabilizations using the PercuDyn device

“…Even with the limits of their study, they confirmed that dynamic stabilization produces a good relief from back pain preserving the range of motion [4]. The common link between these studies [2][3][4], is the very low morbidity of the procedure, with a very fast recovery and return to daily activities, and the quite absence of intra-or post-operative complications, with very good results in term of pain resolution. This dynamic stabilization system seems to be a very good alternative to the standard surgical fusion in patients with severe disc degeneration, especially because potential surgical complications as irreversible spine deformity and invalidation of quality of life are not reported [8,12].…”

“…According to the results of Chen et al [11], they concluded that the PercuDyn is able to restore neuroforamina and spinal canal area, acting as a dynamic stabilization, because it is placed on the facet joint bases and leads to natural full range of motion and rotation, increasing interspinous ligament motility in order to reduce the lumbar low back pain source. Masala et al [2] treated 20 patients with symptoms of lumbar spine stenosis and obtained 16 cases with satisfactory results, suggesting that the PercuDyn may at least delay the time for classic decompression surgeries. Maida et al [4] in 2014 used the device in association with microdiscectomy in a selected cohort of patients with severe disc degeneration, good range of motion of the lumbar spine and integrity of posterior intervertebral processes.…”

“…Literature about the PercuDyn is limited to few case series of patients affected by lumbar spine stenosis [2], degenerative lumbar low back pain [3], and patients treated with microdiscectomy associated to stabilization with the PercuDyn [4]. In our department, in the last 7 years, we have used the PercuDyn to treat low back pain caused by severe degeneration of intervertebral disc, lumbar spine vertebrae instability, facet arthropathy and central foraminal stenosis for a total of 129 patients.…”

Biomechanics of Posterior Dynamic Stabilization Systems

“…Two titanium screws anchor the device to the pedicles, and a polycarbonate urethane cushion bumper resting against the inferior auricular process provides the flexibility for the dynamic posterior stabilization system [5, 22]. Masala et al [23] conducted a study on the PercuDyn implant to evaluate the efficiency of this system as a treatment for patients with lumbar stenosis. The implantation was performed on 24 consecutive patients with lumbar stenosis.…”

Surgical Versus Non-surgical Management of Lumbar Spinal Stenosis

“…Other more recent methods of surgical treatment for patients with lumbar stenosis include the X-Stop implants, Superion Interspinous Spacer, and PDS Percudyn System implants [36][37][38][39][40][41]. These devices have proven useful for patients who are at high risk for surgery, such as the elderly population, as the operative time is significantly shorter with less blood loss.…”