Thank you in advance for your help. I am actually a P.T. that works with nurses re: wound care. I understand that scars acheive only 80% integrity of original skin, but my colleages and I are debating if this is a consistent value, or if the value decreases each time a wound opens and then "heals" (i.e. recurrent pressure wounds). One nurse had a chart that indicated 80% the first time a wound occured, then 64%, then 51% etc. But we are not sure if this was factual or someone just taking the statement 'that the new tissue is only 80% as strong as the original' literally and then did the math. I can not find a reliable reference that speaks to this topic. I am wondering if anyone knows about this.