PURPOSE We evaluated the safety and effectiveness of the minimally invasive Superion(®) Interspinous Spacer (VertiFlex, Inc., San Clemente, CA) in patients with moderate LSS. METHODS This single-arm prospective study enrolled 121 patients with moderate LSS between February 2008 and August 2009 and were followed up at 1 (n=111), 3 (n=96), 6 (n=81), and 12 (n=52) months. All patients were treat...

Background: Lumbar spinal stenosis (LSS) with neurogenic intermittent claudication (NIC) is one of the most common degenerative spinal diseases in the elderly. One treatment option for LSS/neurogenic intermittent claudication is conservative management with oral analgesics, injections and physical therapy. Another relatively new operative alternative is interspinous process decompression. To da...

BACKGROUND The purpose of this study was to determine the indications for implantation of the coflex device (Paradigm Spine, LLC, New York, New York), assess long-term complications, and evaluate the long-term clinical outcomes of patients. METHODS A total of 127 patients underwent placement of a coflex implant for various indications by one orthopaedic spine surgeon. The mean follow-up was 6...

Methods This study was conducted on 175 women who underwent CT between March of 2006 and May of 2008. For making an objective assessment, one specialist in obsterics and gynecology measured the obstetrical conjugate, the true conjugate and the diagonal conjugate on the sagittal plane and the transverse diameter, the intertuberous diameter and the interspinous diameter on the coronal plane. The ...

Neurogenic claudication was first related to lumbar stenosis (Verbiest H, 1954). Since, decompressive surgery was indicated in patients who failed to respond to conservative therapy. It is followed by posterior fusion in cases where the motion segment showed instability or in case where a secondary instability is expected to develop after surgery. However, while many patients have benefited fro...

Lumbar fusion using the pedicle screw system is a popular operative procedure, with favorable clinical results and high fusion rates. However, the risk of adjacent segment disease after lumbar fusion is problematic. We report a complicated case of severe retrolisthesis at L3-4 level following dynamic interspinous process stabilization at L2-3 level and a fusion at L4-5 level. The radiological a...