Hi Mark,
The Dynesys implant was not allowing the patient to stand as erect as they wished to stand, so ADR was done about six months after Dynesys and then six months after the ADR the Dynesys was removed.
I think the Dynesys was a poor surgery, but having so said I had not met anybody in the UK that has had a "good" Dynesys surgery there have always been complications.
I am awaiting an e-mail, to let me know how this patient is getting on 12 months after the removal of the Dynesys
best,
Alastair