Well, I was throwing in a few quick laps to test the Lifan's new gearing. Turn 5 was faster than ever with the recent precipitation. Laying into 2nd gear and off the seat I huck the "big" jump smooth. SMACK! I strike my 115lb chow/retriever broadside on the landing. He yelps like he's been broken in half, I tumble with the overweight chinabike to a glorious and dusty resting spot. Screaming was the best way to get help, surely.
Mike comes running and I yell, "is the dog okay?" He's perfectly fine. A sigh of relief as I assess my own wounds. The Mx boots saved my ankles, but their weight destroyed my left knee. Somewhere in the wreckage I remember hyper extending my knee . Anyways, I felt okay and tried to stand up. With absolutely no resistance my knee gives out. I'm in the middle of a field with this dull droning pain burning like fire. "Get the car, dude."
Off to Kaiser urgent care for some X-ray action. No fracture and excellent joint clearance. Severe sprain is the diagnosis.
Feels really heavy and extremely tight. I have been in an immobilizer for 24hrs and the stiffness is incredible.
As far as pain, when it happened 8 out of 10. Now its about a 3 with 2 Vicodin every 8hrs.
Going to be doing my own physical therapy here at home. What do you recommend?
Mike comes running and I yell, "is the dog okay?" He's perfectly fine. A sigh of relief as I assess my own wounds. The Mx boots saved my ankles, but their weight destroyed my left knee. Somewhere in the wreckage I remember hyper extending my knee . Anyways, I felt okay and tried to stand up. With absolutely no resistance my knee gives out. I'm in the middle of a field with this dull droning pain burning like fire. "Get the car, dude."
Off to Kaiser urgent care for some X-ray action. No fracture and excellent joint clearance. Severe sprain is the diagnosis.
Feels really heavy and extremely tight. I have been in an immobilizer for 24hrs and the stiffness is incredible.
As far as pain, when it happened 8 out of 10. Now its about a 3 with 2 Vicodin every 8hrs.
Going to be doing my own physical therapy here at home. What do you recommend?

... Glad you wasn't hurt any worse
You came out lucky.
And thanks, I will

Seriously, hope you're okay too. Hypertension is usually a cause for ACL's to tear/rupture. If your knee felt like it gave way, or you felt what is classically known as a "pop" sensation, that's indicative of an ACL. Burning sensation can be strain or tear. A good ortho can manually test your knee to see if it's locking correctly, but sometimes an MRI is the only way to see for sure. You may also have a partial ACL tear. You can function with a ACL tear, however your knee won't be as stable, over time it can cause more damage in your knee because of the lack of stability and your knee may not track correctly within the joint. The ACL is your stabilizer in your knee. The bum deal of ACL's, it's a lig that will not heal on it's own, like low grade MCL tears can. May want to consider having an MRI just to make sure, you could also have a meniscus injury. Don't borrow trouble worrying that you've got an ACL or something else, but if it continues to bother you, I'd see an ortho and get films. Also, if it's a pain on the inner side of your knee, that's usually MCL and sometimes meniscus. Like James said, follow the RICE. Ice Ice Baby, feel better soon.