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Related Experiment Video

Updated: Jun 6, 2026

Chronic Implantation of Multiple Flexible Polymer Electrode Arrays

Chronic Implantation of Multiple Flexible Polymer Electrode Arrays

Published on: October 4, 2019

[Keel-implants: Activ-L].

Karsten Wiechert¹

¹Abteilung für Wirbelsäulenchirurgie, Hessingpark-Clinic, Augsburg, Germany. karsten.wiechert@hessingpark-clinic.de

Operative Orthopadie Und Traumatologie

|December 15, 2010

Summary

This summary is machine-generated.

The Activ-L total disc replacement offers flexible anchoring and preserves spinal mobility for low-back pain relief. Early results show comparable outcomes to existing devices with potentially lower wear.

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Last Updated: Jun 6, 2026

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Area of Science:

Spinal surgery
Biomaterials
Orthopedic devices

Context:

Lumbar disc degeneration causes refractory low-back pain.
Total disc replacement aims to relieve pain and restore motion.
The Activ-L device offers a modular design with flexible anchoring options.

Purpose:

To evaluate the early clinical outcomes of the Activ-L total disc replacement.
To assess the device's efficacy in restoring segmental mobility and providing pain relief.
To compare the Activ-L device with established disc replacement systems.

Summary:

The Activ-L total disc replacement features a modular design with spike or keel anchoring and a semiconstrained UHMWPE inlay.
A standardized, minimally invasive anterior surgical technique is employed.
Early clinical results are comparable to existing devices, with significantly lower particle wear observed for the inlay.

Impact:

Provides a viable treatment option for lumbar disc degeneration.
Demonstrates potential for improved longevity due to reduced inlay wear.
Contributes to the field of motion-preserving spinal surgery.