I have Foot DROP?

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I had my left popliteal operated on the 28th of August this year (because it suddenly swelled on the early week of July, and the lump spreaded to the entire knee as well as the bottom-left of the thigh - above the patella); and then a washout done on the 3rd of September.

Before the surgery, I've had an MRI scan of my left thigh, and the report told me I had Infected Baker's Cyst.
Later after that surgery, the doctors called my condition as popliteal abscess because what came out from the lump were about 100cc of blood-red-ed pus, and not the supposedly synovial fluid. (well I guess)

Now the surgery wound is clean, dry, and somewhat healed.
But the big problem is I have Foot Drop!!!
It didn't started just yesterday, but since that surgery (well not within the 6 hours where I wasn't allowed to eat, drink, or move; but after that).

Should I blame the surgeon?
Or the anesthetist? (I had region anesthetic where both my legs were numbed.)
And since the surgery took place exactly at the back of the knee joint,
is there a chance that my peroneal nerve is damaged?
Will I ever recover from this Foot Drop?

What if I tell you I had anemia before? (which I don't know since when, and I don't even know if I actually still have it by today) Is there something to relate to it here?

And what if I tell you I might just have deep sleep or another kind of sleep disorder?
Do I really have any neurological disorders?
But why didn't I have Foot Drop before?

Please, anybody help me!