No amputated body part is too small to be salvaged. Debris or other contaminating material should be removed, but the tissue should not be allowed to get wet. An amputated body part should be wrapped in bandages, towels.
Just start a new campaign, it should pop-up to ask if you want to start a new regular or Severed campaign.
In denervation (disuse) atrophy, fibrous connective tissue replaces the muscle tissue that was lost. When atrophy is complete, fibrous tissue cannot be reversed to muscle tissue.
Leech
If either the jugular vein or the carotid artery is completely severed, the venous tissue will retract and will be extremely difficult, if not impossible to repair.
severed means cut off
According to MANswers, A severed Limb can be Re-attached after 1 hour its Perfectly able to Attach, after 4 hours tissue begins to deteriorate, in a cooler with ice but not in contact with the ice in about 40 degrees F. It will be viable for up to 4 days.
a leg that has been cut, or 'severed', in half
A Severed Head was created in 1961.
A Severed Wasp was created in 1982.
The Severed Arm was created in 1973.
The Severed Man was created in 2004.
Severed Fifth was created in 2008.