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VariLift®-L Posterior Interbody Fusion Device

The expandable VariLift Interbody fusion Device is designed to achieve secure fixation in stand-alone use.  Its effectiveness is supported by a strong body of clinical evidence, making it a simple, dependable, and proven solution for spinal fusion.

Wenzel Spine VariLiftThe VariLift device is expanded after implantation, anatomically filling the disc space, providing a generous bone graft chamber, and giving a clear radiologic view into the device.

Proven.

In over 15 years of clinical use, the VariLift-L has demonstrated excellent clinical outcomes.[1,2,3,4,5,6] (Get more details on the clinical support and review case examples.)

Stand-Alone.

Avoiding the use of pedicle screws means a shorter, less invasive procedure—and a quicker recovery.

Mini-Incision.

The typical incision length of VariLift case is 2".

Straight-Forward.

The small pre-expansion size of the device and the intuitive instrumentation provide ease of insertion.
(Learn more about the procedure.)

Secure.

When expanded, the device fills the disc space and creates a large bone-contacting area, providing immediate stability and resistance to migration and subsidence over time.
(Learn more about the device design rationale.)

The VariLift Interbody Fusion System is a simplified approach to spinal fusion—with straightforward insertion and anatomic design that preserves the native anatomy. The strong body of clinical evidence—including over a decade of experience in thousands of patients—shows that stand-alone interbody fusion is a proven reality.

More information

Download the VariLift product overview brochure.




  1. Attia D. PLIF using the VariLift expandable cages: An experience reaching 5 years about stand alone cages. Isreal Orthopedic Association, Tel Aviv December 4-5 2001, JBJS (Br) 2002 84-B(SUPP III):298.
  2. Attia D. PLIF using VariLift expandable cages. More than 5 years of experience in stand alone cages. Progress in Spinal Fixation, International Symposium, Swiss Spine Institute, Berne, Switzerland, June 21-22, 2002.
  3. Attia D. Posterior lumbar intervertebral fusion using VariLift expandable cages. In Spinal Restabilization Procedures (eds. Kaech DL, Jinkins JR). Elsevier: Amsterdam, 2002: 191-195.
  4. Doria D, Lisai P, Meloni GBB, Pala PP, Serra M, Fabbriciani C. Instrumented posterior interbody fusion in degenerative and multioperated lumbar spine. J Orthpaed Traumatol (2004) 4:20-25.
  5. Ochagavia FP, Dominguez J, Zan J, San Juan A, Orus AG, De Pedro JA. Experience and preliminary results in the use of interbody cyliners for lumbar arthodesis. Revista Espanola de Cirugia Osteoarticular (2001) 36(206):41-76.
  6. Neely, W., Fichtel, F., Kinman, T., et. al. 2010. A Retrospective Clinical Evaluation of Stand-Alone Posterior Interbody Lumbar Fusion using VariLift-L(r) Expandable Titanium Device. Data on file with Wenzel Spine, Inc.