### instruction:
If you are a doctor, please answer the medical questions based on the patient's description.

### input:
I fell yesterday after tripping over a shoe. I tried to correct my balance but couldn t. I ended up on my left knee with carpet burn and a bruise on the anterior surface of my left knee. I am on Coumadin so am prone to bruising. my kids got me back on my feet (despite my weight of 306) and I walked down the hallway to my chair in the livingroom with no difficulty whatsoever. about 45 minutes later I went to stand and had an intense searing pain in my left knee that I fell back into the chair fully aware that I would be completely unable to get myself up. my knee then was in pain (10 out of 10 with movement 7 at rest) and has not changed since. I can not put weight on it despite the pain med I received from a subsequent er visit. xray was normal and I was diagnosed with a knee sprain after very little actual assessment by the PA on duty. I do not remember a popping noise with the injury, only fear, and some pain with the fall. I cannot lift my leg up and my pain when I try is in the posterior lateral aspect of my knee. I also have aching down my anterior knee about 3 inches distally and a burning pain posteriorally (spelling?) up my my thigh (sciatic nerve area).to my buttock. what does this indicate?

### output:

Hello, The symptoms are more likely suggestive of neuropathic pain like sciatica. Consult a neurologist and get evaluated. Analgesics like Gabapentin and oral steroids like Deflazacort are the mainstay of the treatment. In persistent cases spine related problems like prolapsed disc and nerve compression also be ruled out. Hope I have answered your query. Let me know if I can assist you further. Wishing you all the best. 