Yuuup--I had never heard of compartment syndrome til I nearly lost a limb. Yow. I was very grateful to the young intern who recognized it. I'm told that if a fasciotomy is not performed within 6 hours of developing compartment syndrome, limb/extremity use is severely reduced, permanently.
As for the pressure, well, the surgeon said that it was good they were wearing face shields when they performed the fasciotomy, because it was so built up in there that I squirted the hell out of the first person to insert her scalpel!
Fortunately my setback has been brief, I've been able to manage pain with ibuprofen instead of gabapentin, and I have been able to return to exercise gradually and carefully. Just a reminder to take it really slow and not get cocky.