1st: quadrupled hamstring tendons have the highest load to failure of ANY method of ACL fixation. higher than any 'donor graft' tissue, and also higher than bone-patellar tendon-bone---this is proven, don't challenge me on it
2nd: the bone-patellar tendon-bone procedure typically has the largest incision (who cares how big the incision is, as long as it does not fail). donor graft surgeries typically have smaller incisions (slightly) because you don't have to harvest the patients' tissues.
3rd: there is an EXCELLENT surgeon at children's hospital who does several ACL surgeries per week, who prefers to use the patients' own hamstring tendons--he operates on high school and college athletes primarily. the reasearch has shown that running speed and hamstring strength decreases minimally, if at all. the patients who have donor graft surgeries have not been shown to recover faster. you have to read literature very carefully, as people try to prove things that they want to do. in other words, there are many studies that ARE TRYING to show that the donor graft surgery recovers faster. why are they trying to do this?? read #4
4th: the reason it has become popular to use 'donor grafts' for ACL surgery is that the surgery can be done DRAMATICALLY faster--the surgery time can be literally cut in half. also, some surgeons are not comfortable harvesting the patients hamstrings (it is very easy to accidentally cut them while harvesting them). sorry, but that is the real reason to use donor graft surgery---its easier to do--trust me.
5th: donor tissue does not incorporate into your body and heal as fast as your own harvested tissue. so while the donor tissue may be just as strong at the time of surgery, it's strength decreases with time, until it finally heals and incorporates into the body, when compared to your own tissue.