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The Body Electric
any bacteria resistant to the mix would spread like wildfire when the
others competing against them were killed.
John's X rays were as chaotic as his bacteria cultures—pieces of dead
bone all over the place with absolutely no healing—but we had to deal
with the infection first. Since we'd have to use positive current for quite
a while, I was afraid we'd destroy some of the bone, but I told John that
six months after we got the wound to heal over with skin, I would bring
him back into the hospital and use the negative current to stimulate
whatever was left. I couldn't promise anything and, since I hadn't yet
tried the silver nylon on this type of wound, we might run into unex-
pected problems. But John agreed with me that he had nothing to lose
except his leg, which would certainly have to come off if we didn't try
my plan.
A few days later I debrided the wound, removing the dead tissue and
all grossly infected or dead bone. There wasn't much left afterward. It
was an enormous excavation running almost from his knee to his ankle.
In the operating room we soaked a big piece of silver nylon in saline
solution and laid it over the wound. It had been cut with a "tail,"
serving as the electrical contact and also as a sort of pull tab that we
could keep dry, outside of the cavity. We packed the fabric in place
with saline-soaked gauze, wrapped the leg, and connected the battery
unit.
I watched John anxiously during the first two days. If trouble was
going to occur, that was when I expected it. By the third day he was
eating well, and the current was beginning to drop off, indicating more
resistance at the surface of the wound. Now it was time to change the
dressing. We were overjoyed to see that the silver hadn't corroded and
the wound looked great. Carefully I took a bacterial culture and applied
a new silver nylon dressing.
The next morning Sharon Chapin, an exceptional lab technician who
took an active part in some of the research, showed me the bacterial
cultures. The number of bacteria had dropped dramatically. I went to
give John the good news and change his dressing again, when I realized
that I could teach him to do his own daily dressing changes. They were
time-consuming for me, but John had too much time on his hands and
was the one most interested in doing the best thing for his leg. It was a
nice feeling to teach a muskrat trapper, who bad dropped out of school
at sixteen, how to do an experimental medical procedure. He learned
fast, and in a day or so he was changing dressings himself and measuring
the current, too. By
the end of
the week, he allowed as how he did a
better job than l did. Maybe he did it at that, because by then all of our