TrellOss®-A SA Porous Ti Interbody System

A new foundation of growth

Introducing TrellOss-A SA Porous Ti Interbody System

A 3D printed porous titanium interbody device with aligned 300, 500, and 700 μm pores and a 7 μm roughened surface; TrellOss-A SA is designed to provide appropriate endplate coverage with three footprint offerings, and allow for consistent bone purchase with optimized location of screw pockets. Implants are sterile-packed to reduce the risk of contamination and hospital reprocessing costs.

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TrellOss-A SA Highlights

  • Rigid teeth help to resist implant migration
  • Central window for graft packing and containment
  • Optimized location of screw pockets to allow for consistent bone purchase

A New Foundation for Growth

SEM image of TrellOss Surface at 50x magnification


Open architecture with 70% porosity including varying pore sizes of 300, 500, and 700 μm that mimic cancellous bone allowing for a conducive environment for cellular activity1,5,6,7

SEM image of TrellOss Surface at 100x magnification


Scaffolding structure provides additional surface area2,3 and an elastic modulus similar to PEEK8

SEM image of TrellOss Surface at 450x magnification


7 μm surface texturing enhances the wicking nature9 and creates an environment for potential cellular adhesion2,3,4


Brochures & Surgical Technique Guides

TrellOss®-A SA Porous Ti Interbody System Brochure

ZV0219 REV A 11/22 (U.S.)Download Clinical Trial PDF

TrellOss®-A SA Porous Ti Interbody System Surgical Technique Guide

ZVINST0014 REV B 01/23 (U.S.)Download Clinical Trial PDF

Additional Information

  • References

    1. McGilvray KC, Easley J, Seim HB, et al. Bony ingrowth potential of 3D printed porous titanium alloy: a direct comparison of interbody cage materials in an in vivo ovine lumbar fusion model. Spine J 2018;18(7):1250-1260.

    2. Olivares-Navarrete R, Hyzy SL, Slosar PJ et al. Implant materials generate different peri-implant inflammatory factors: poly-ether-ether-ketone promotes fibrosis and microtextured titanium promotes osteogenic factors. Spine 2015;40(6):399 -404.

    3. Olivares-Navarrete R, Hyzy SL, Gittens RA, et al. Rough titanium alloys regulate osteoblast production of angiogenic factors. Spine J 2013;13(11):1563 -70.

    4. Rao PJ, Pelletier MH, Walsh WR, et al. Spine Interbody Implants: Material Selection and Modification, Functionalization and Bioactivation of Surfaces to Improve Osseointegration. Orthop Surg 2014;6:81 -89.

    5. Ponader S, von Wilmowsky C, Widenmayer M, et al. In vivo performance of selective electron beam-melted ti-6al-4v structures. J Biomed Mater Res A 2010;92A:56 -62.

    6. Li JP, Habibovic P, et al.: Bone ingrowth in porous titanium implants produced by 3D fiber deposition. Biomaterials 2007;28:2810.

    7. Karageorgiou V, Kaplan D. Porosity of 3D biomaterial scaffolds and osteogenesis. Biomaterials 2005;26(27):5474 -91.

    8. Permeswaran, V., (2019) Elastic Modulus Characterization of Porous Titanium TrellOss™ Structure, 2922.1-GLBL-en-REV1219, Zimmer Biomet Spine, Westminster, CO

    9. Permeswaran, V., (2019) Measuring the Wicking Nature of Porous Titanium TrellOss™ Structure, 2921.1-GLBL-en-REV1219, Zimmer Biomet Spine, Westminster, CO.

  • Legal Manufacturer

    Nexxt Spine, LLC

    14425 Bergen Blvd, Suite B

    Noblesville, IN 46060

    Ph: 317.436.7801

    Fax: 317.245.2518