Something of a pet peeve of mine, but I find it rather egotistical that people tend to assume they're leagues more intelligent than people in the past, based on nothing but having hindsight on past events. More educated maybe, but that's not the same as being more intelligent.
Civil war surgeons often get flak because of the amount of amputations they performed. Of course that myth is completely ignoring the fact that a civil war minie ball is going to far more immense damage to a human body than a bullet from the highest caliber modern firearm available. When a musket minie ball impacted bone, it shattered it completely 9 times out of 10. Hence, because the bone was shattered, literally all they could do at the time was amputate to prevent death in most cases. It's not due to 'incompetence', it's a giant ball of lead being fired at high velocity, and that's probably going to shatter your bone if you're unlucky enough to get hit by it on one of your limbs.
Civil war surgeons did the best that they could with what tools they had available. They weren't idiots, they were taking the only measure they could to assist the wounded most of the time. Again, what exactly do you do about a shattered bone in that time period?
Civil war amputation is more of a testament to how terrible a weapon the Springfield musket was more than anything to do with 'incompetence'. Yes, some surgeons were quacks, but to make it out to be like that was the standard is inaccurate and plays down how traumatizing it would be to spend each day hacking off limbs.
ehistory.osu.edu