difficult to make the direct correlation. In fact either one of you are right, but also as plausible that its something else (both wrong) or a combination of the two (both right). At this point it could be the latter scenario where combination of recurring injury and bad luck. And that doesnt even take in the psychology of the whole thing.
When back in San Diego I met about a handful of minor league guys rehabbing at the gym from their TJ surgeries. The experience pre and post op seemed to vary, but the mental state questions all pointed to common themes that took in uncertainty, fear and doubt related to performance. All said it was hard to control, many were using sports shrinks to deal with the process.