First Results of a New Vacuum Plasma Sprayed (VPS) Titanium-Coated Carbon/PEEK Composite Cage for Lumbar Interbody Fusion.

Hoppe, Sven; Albers, Christoph; Elfiky, Tarek; Deml, Moritz Caspar; Milavec, Helena Maria; Bigdon, Sebastian; Benneker, Lorin Michael (2018). First Results of a New Vacuum Plasma Sprayed (VPS) Titanium-Coated Carbon/PEEK Composite Cage for Lumbar Interbody Fusion. Journal of Functional Biomaterials, 9(1) MDPI 10.3390/jfb9010023

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The aim of this study was to assess the performance of a new vacuum plasma sprayed (VPS) titanium-coated carbon/polyetheretherketone (PEEK) cage under first use clinical conditions. Forty-two patients who underwent a one or two segment transforaminal lumbar interbody fusion (TLIF) procedure with a new Ca/PEEK composite cage between 2012 and 2016 were retrospectively identified by an electronic patient chart review. Fusion rates (using X-ray), patient's satisfaction, and complications were followed up for two years. A total of 90.4% of the patients were pain-free and satisfied after a follow up (FU) period of 29.1 ± 9 (range 24-39) months. A mean increase of 3° in segmental lordosis in the early period ( = 0.002) returned to preoperative levels at final follow-ups. According to the Bridwell classification, the mean 24-month G1 fusion rate was calculated as 93.6% and the G2 as 6.4%. No radiolucency around the cage (G3) or clear pseudarthrosis could be seen (G4). In conclusion, biological properties of the inert, hydrophobic surface, which is the main disadvantage of PEEK, can be improved with VPS titanium coating, so that the carbon/PEEK composite cage, which has great advantages in respect of biomechanical properties, can be used safely in TLIF surgery. High fusion rates, good clinical outcome, and low implant-related complication rates without the need to use rhBMP or additional iliac bone graft can be achieved.

Item Type:

Journal Article (Original Article)


04 Faculty of Medicine > Department of Orthopaedic, Plastic and Hand Surgery (DOPH) > Clinic of Orthopaedic Surgery

UniBE Contributor:

Hoppe, Sven; Albers, Christoph; Deml, Moritz Caspar; Milavec, Helena Maria; Bigdon, Sebastian and Benneker, Lorin Michael


600 Technology > 610 Medicine & health








Kathrin Aeschlimann

Date Deposited:

27 Jun 2019 12:50

Last Modified:

24 Oct 2019 04:29

Publisher DOI:


PubMed ID:


Uncontrolled Keywords:

PEEK cage composite lumbar fusion spine titanium-coated carbon




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