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Gala RJ, Russo GS, Whang PG. Interspinous implants to treat spinal stenosis. Curr Rev Musculoskelet Med. 2017;10(2):182-188doi: 10.1007/s12178-017-9413-8.
Gala, R. J., Russo, G. S., & Whang, P. G. (2017). Interspinous implants to treat spinal stenosis. Current reviews in musculoskeletal medicine, 10(2), 182-188. https://doi.org/10.1007/s12178-017-9413-8
Gala, Raj J, et al. "Interspinous implants to treat spinal stenosis." Current reviews in musculoskeletal medicine vol. 10,2 (2017): 182-188. doi: https://doi.org/10.1007/s12178-017-9413-8
Gala RJ, Russo GS, Whang PG. Interspinous implants to treat spinal stenosis. Curr Rev Musculoskelet Med. 2017 Jun;10(2):182-188. doi: 10.1007/s12178-017-9413-8. PMID: 28324328; PMCID: PMC5435644.
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Curr Rev Musculoskelet Med. 2017 Jun;10(2):182-188. doi: 10.1007/s12178-017-9413-8.

Interspinous implants to treat spinal stenosis.

Current reviews in musculoskeletal medicine

Raj J Gala, Glenn S Russo, Peter G Whang

Affiliations

  1. Department of Orthopaedics and Rehabilitation, Yale University School of Medicine, 47 College Street, New Haven, CT, 06510, USA. [email protected].
  2. Department of Orthopaedics and Rehabilitation, Yale University School of Medicine, PO Box 208071, New Haven, CT, 06520-8071, USA. [email protected].
  3. Department of Orthopaedics and Rehabilitation, Yale University School of Medicine, 47 College Street, New Haven, CT, 06510, USA.

PMID: 28324328 PMCID: PMC5435644 DOI: 10.1007/s12178-017-9413-8

Abstract

PURPOSE OF REVIEW: Lumbar spinal stenosis has historically been treated with open decompressive surgery which is associated with significant morbidity and may give rise to various complications. Interspinous spacers (ISS) have been developed as a less invasive strategy which may serve to avoid many of these risks. The two current spacers that are FDA approved and commercially available are the Coflex and Superion devices. The goal is to review these two implants, their indications, and patient selection.

RECENT FINDINGS: The Coflex device has been shown to be analogous to decompression and fusion when treating moderate spinal stenosis. It provides dynamic stability after a decompression is performed, without the rigidity of pedicle-screw instrumentation. Recent results show improved outcomes in Coflex patients at 3 years of follow-up, as compared to decompression and fusion. The Superion implant is placed percutaneously in the interspinous space with minimal disruption of spinal anatomy. When compared to the X-Stop device (which is no longer available), the Superion implant shows improved outcomes at 3 years of follow-up. ISS are lesser invasive options as compared to formal decompression and fusion for the treatment of lumbar spinal stenosis.

Keywords: Coflex; Interspinous devices; Interspinous spacers; Lumbar spinal stenosis; Neurogenic claudication; Superion

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