Interspinous processes spacer
A interspinous processes spacer (also known as decompression spacer or interspinous posterior device) is a device implanted between interspinous processes to open narrowed exiting foraminal nerve channels to treat lumbar radiculopathy caused by spinal stenosis. It is used as an alternative to laminectomy, especially in elderly patients.1
The process of implantation is minimally invasive procedure, performed under local anasthaesia.
Different types of interspinous spacer are used. For example; X – Stop or Coflex made of titanium, Wallis Ribbon, Ellipse or Vicking made of peek, DIAM made of silicon.2
- 1. Landi A, Interspinous posterior devices: What is the real surgical indication? World J Clin Cases. 2014 Sep 16; 2(9): 402–408.
- 2. Phan K et al. Interspinous process spacers versus traditional decompression for lumbar spinal stenosis: systematic review and meta-analysis, Journal of Spine Surgery, Vol 2, No 1, March