pro disc vs spinal kinetics M6
Hey, can anybody tell me why dr bertangolini in germany prefers the pro disc over the spinal kinetics m6? Is it just bc the pro disc has been around longer or is it just the fact the pro disc according to the posts on here is easier to remove in case of revisions? Is it bc he doubts the polymers in the m6 implants or freedom lumbar discs will actually last? Thanks
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