Fangraphs: Tommy John Surgery and Hitters

[weams]

http://www.fangraphs.com/community/the-effects-of-tommy-john-surgery-on-batters/

Honestly, the results were surprising. Like most analysts, I believed that they would be right in saying that the surgery has little to no effect on batter strength. I found this to be wrong though because, on average, most batters did experience a non-negligible decrease in BABIP, SLG, and HR/FB.

[SteveA]

They need to add an age column to that chart (age at the time of surgery).

I mean, if a guy has it at 32 and then doesn't do as well afterwards... how much of that is attributable to the surgery as opposed to the natural decline with age?

If a guy has it at 24 and doesn't come back the same, THAT is an indication for concern.

[Can_of_corn]

I find it frustrating that so often there just isn't a large enough sample size to really trust the results.

[Bahama O's Fan]

Any former catchers to compare how they threw before and after?

[weams]

Any former catchers to compare how they threw before and after?

John Baker. Todd Hundley. Taylor Teagarden.