Hi Dibblego

Not quite sure what to make of that. I presume you are meaning the Quadratus Lumborum muscle but I wouldn't know for sure without seeing what it looks like. That muscle is innervated by t12 - L3 spinal nerves. This is way higher up than the part of the peripheral nervous system you damaged. Although it is all interconnected, it seems highly unlikely this would have been affected from an inversion injury to the ankle, no matter how severe. It is possible you have another diagnosis eg something damaged the spinal cord on that side - but that is just conjecture and it sounds like you had that all checked out.

One thing you could tell me - this isn't getting progressively worse is it? It sounds like it has plateaued out and if anything since the surgery you are a getting better.

Personally I think getting a fresh opinion from a clinician who can look at things holistically - someone who is prepared to spend some time looking into your presentation - is the way to go.

Let us know how you get on.