AcroFlex design and results

The AcroFlex prosthesis is unique when compared to other current devices, as it has an elastomeric core sandwiched between two titanium endplates. The purpose of this design was to optimize shock absorption qualities. This paper reviews the design of the AcroFlex Disc and relevant design and outcome...

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Bibliographic Details
Published in:The spine journal 2004-11, Vol.4 (6), p.S245-S251
Main Authors: Fraser, Robert D., Ross, E. Raymond, Lowery, Gary L., Freeman, Brian J., Dolan, Mark
Format: Article
Language:English
Subjects:
AcroFlex
Adult
Arthroplasty, Replacement - instrumentation
Biocompatible Materials - therapeutic use
Elastomers - therapeutic use
Female
Humans
Intervertebral Disc
Joint Prosthesis
Lumbar Vertebrae
Middle Aged
Osteoarthritis - surgery
Pilot Projects
Prosthesis Design
Titanium - therapeutic use
Tomography, X-Ray Computed
Wear
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Description
Summary:The AcroFlex prosthesis is unique when compared to other current devices, as it has an elastomeric core sandwiched between two titanium endplates. The purpose of this design was to optimize shock absorption qualities. This paper reviews the design of the AcroFlex Disc and relevant design and outcomes of two pilot studies carried out on 28 patients using the AcroFlex prosthesis. Although clinical outcomes of the pilot studies were successful, the pivotal randomized trial has not been carried out due to detection of mechanical failure of the elastomer on thin cut CT scans. The implications of this for the AcroFlex and other arthroplasties are discussed.
ISSN:1529-9430
1878-1632
DOI:10.1016/j.spinee.2004.07.020