The reason is that ligaments are poorly vascularized. In other words, there aren't many blood vessels to provide nutrients for the ligaments. And without nutrients tissue repair is not possible. Oftentimes, ACL tears require a surgical graft.
The Bureau of Labor Statistics just released its most recent data on the deadliest jobs in America. As usual, the "farming, fishing, and forestry" occupation group was the worst. But what's alarming is that the top three occupation groups with the highest suicide rates are also ranked within the top four deadliest occupation groups.
New CDC report explores the toll of preventable deaths in our nation. The figures are staggering, but parsing the immediate vs. underlying causes, plus geographic distributions may help reduce the loss.