Tissue Response to Extraction.

The two-number coding for tissues, [a + b], the first was the number of days since implantation (0,1,3,7,14 or 28) and the second the number of days following explant (either 0 or 5) when the muscle was harvested. For example [3 + 0] is the designation for samples explanted after three days of implantation, where muscles were harvested immediately after explant.

Schematic of cross-section at electrode implant site with ‘separation zone’ at explant.