What do surgeons consider when someone comes in with a mangled arm from a piece of farming equipment? I am a 40 year old farmer and recently had a run in with my tractor and had my arm amputated below the elbow as a result.I am wondering why they didn’t try to reconstruct it.

While this is ultimately a question for your surgeon, the decision to either reconstruct or amputate is based on multiple factors.  These include the complexity of the injury, the soft tissue damage, function following the accident, expected healing times, and chance of infection.