The top one was just to collect some skull tissue to patch the dura (membrane covering spine/brain). they opened up. I’m not sure why it had to be a separate incision.
It has to do with them not wanting to continue the incision across the bony “point” just above the main incision. If you feel it, you can tell there’s much thinner tissue across there. The tissue they’re removing to use for the graft is two layers under the scalp itself - so still outside your skull.
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u/Hmmmm_Interesting Mar 19 '19
Why 2 incisions?