Wright has been very durable considering the strenous nature of the position.
Aside from the back injury in 2011 and the freak wild pitch concussion from Matt Cain in 09 the injury tag is not applicable to describe Wrights career.
He will be 30 next year but I expect him to remain mostly healthy for the next 3- 4 years.
When he turns 35 that could be a completely different story.