KeyLift®
Engineered to Expand. Built for the Non-Cervical Spine.
Lumbar spinal stenosis is one of the most common degenerative spine conditions in older adults, and hundreds of thousands of spine surgeries are performed in the United States every year. For decades, surgeons have been forced to choose between pedicle-screw constructs that are heavier than the problem demands, and interlaminar devices that are limited by anatomy and patient bone quality.
KeyLift changes that calculus. It is an FDA-cleared expandable interlaminar stabilization system designed for posterior, non-pedicle supplemental fusion at a single level in the non-cervical spine (T1–S1). Two platforms. Eight sizes. One reproducible technique.
Three Biomechanical Principles
KeyLift was engineered around three principles that together unlock a category of interlaminar fixation previously inaccessible to the spine community:
Support
PILLAR 1
KeyLift fixates at the lamina — the strongest part of the posterior spinal column — rather than relying solely on the spinous process, which can be compromised in patients with osteopenia.
Lift
PILLAR 2
4 mm of in-situ distraction deployed after insertion. The implant lifts and expands height to distract and decompress the affected level.
Stabilize
PILLAR 3
Positioned close to the spine’s instantaneous axis of rotation, balancing the intervertebral disc and promoting a stable, biomechanically favorable fusion environment.
KeyLift XL: Designed for the Thoraco-Lumbar Spine
20 mm footprint engineered for the broader anatomy of T1 through L5, where lamina and interlaminar space accommodate a larger device. Four implant heights — 10, 12, 14, and 16 mm — each with up to 4 mm of in-situ expansion.
KeyLift XS: Purpose-Built for L5–S1
18 mm footprint engineered for the unique interlaminar window at the lumbosacral junction. KeyLift XS is the only interlaminar stabilization option in the U.S. designed specifically for L5–S1, expanding access to a level where traditional interlaminar devices simply do not fit.
Where KeyLift Fits in the Care Continuum
Patients with spinal stenosis typically travel a long road — physical therapy, opioids, radiofrequency ablation, epidural steroid injections, spinal cord stimulation — before reaching decompression or fusion. KeyLift is positioned to treat the underlying condition when conservative care fails, offering a minimally invasive option that can be performed through a small incision in an outpatient surgery center, with faster recovery and less blood loss than traditional fusion.
The KeyLife Difference
Lumbar spinal stenosis is one of the most common degenerative spine conditions in older adults, and hundreds of thousands of spine surgeries are performed in the United States every year. For decades, surgeons have been forced to choose between pedicle-screw constructs that are heavier than the problem demands, and interlaminar devices that are limited by anatomy and patient bone quality.
KeyLift changes that calculus. It is an FDA-cleared expandable interlaminar stabilization system designed for posterior, non-pedicle supplemental fusion at a single level in the non-cervical spine (T1–S1). Two platforms. Eight sizes. One reproducible technique.
| Platforms | KeyLift XL (T1–L5) and KeyLift XS (L5–S1) |
|---|---|
| Total sizes | 8 SKUs across two platforms |
| Footprints | 20 mm (XL) / 18 mm (XS) |
| In-situ distraction | 4 mm after insertion |
| Cleared anatomic range | T1–S1 (non-cervical spine) |
| FDA clearance | K232484 |
| Approach | Posterior, non-pedicle, interlaminar |
| Materials | Titanium alloy (ASTM F136) and stainless steel (ASTM F138 and A564) |
Request a hands-on review or demonstration of KeyLift.
AM01-0057