I've heard that as well, and it's absolutely sick. That surgery costs in the area of $20,000 and since in these cases it's elective, that's out of pocket. That's a year of college at many places.
Another dirty little secret is that division 1 scholarships are limited to 11.7 per team. That covers 4 years worth of players, so a) almost no one gets a full ride (in some cases, you might get your books covered) and even if you do, scholarships are year to year, so even if you get a full ride year 1, odds are you aren't getting one after that because it will be needed to lure another frosh. In other words, you are going to lay out big $ anyway.
Division 2 schools are allowed 9 per team and Division 3 don't give "athletic" scholarships. You want $ for college? Hit the books.