Spinal Fixation Solution
with Patients in Mind

What is Karma®?

Karma: An Efficient, Minimally-Disruptive Solution for Degenerative Spondylolisthesis

  • Circumferential PEEK bands immobilize and compress the facet joints to facilitate fusion
  • Metal-free, minimally-disruptive fixation
  • Provides spinal stabilization
  • Efficient implant preparation and insertion technique

Revolutionizing the Standard of Care in Spinal Fixation

Karma

  • Leverages the dense cortical bone of the posterior elements (Lamina, IAP, SAP, and Pedicle)5
  • Equivalent biomechanical stability to pedicle screws6
  • Preserves the facet joint and reduces the potential for adjacent level disruption

Karma Procedure

The Karma Posterior Fixation System is a metal-free, minimally-disruptive fixation device used as an adjunct to fusion. Karma is a circumferential PEEK band that immobilizes and compresses the facet joint to facilitate fusion. Karma ensures efficient implant preparation and insertion through a proprietary drill that creates a precise tunnel within the dense cortico-pedicular bone of the posterior elements.

* See the surgical technique guide for detailed procedure

Facet Joint Preparation

02 – Karma Site Preparation

Karma Site Preparation

03 – Karma Implantation

Karma Implantation

04 – Karma Final Construct

Karma Final Construct

Karma, A Fixation Solution

  1. Ghogawala, et al. Laminectomy plus Fusion versus Laminectomy Alone for Lumbar Spondylosthesis. N Engl Med 2016; 374:1424-1434
  2. 1 Liu et al. BMC Musculoskeletal Disorders (2018) 19:231. https://doi.org/10.1186/s12891-018-2132-5
  3. Kafchitsas et al. The impact of surgical fixation technique on pedicle screw anchorage; SENSE Presentation June 2022
    Literature Review 43 full papers Reviewed
  4. Hsieh et al. BMC Musculoskeletal Disorders (2020) 21:100. https://doi.org/10.1186/s12891-020-3111-1
  5. Pedicle Screws Challenged: Lumbar Cortical Density and Thickness are Greater in the Posterior Elements Than in the Pedicles Khalid Odeh, MD, Alexander Rosinski, MS, Jeremi Leasure, MSE, and Dimitriy Kondrashov MD. Global Spine Journal (AO spine) 1-10 2019
  6. Nunley et. al. Metal-free Cortico-pedicular Device for Supplemental Fixation in Lumbar Interbody Fusion, World Neurosurgery, Apr. 2023

Want to learn more about the Karma® system contact us.