Knee pain help!

11 days ago I was riding my dirt bike in Texas and washed out the front end, bashing my knee (unprotected) into a boulder going around 30 miles per hour. There was extreme pain at first, which then faded and I was able to ride back to camp slowly. I figured it was just bruised so the next two days I biked 10 miles at the gym and my knee felt loose and better. But when I took a few days off the pain came back strong, to the point now where it hurts to do sleep, walk, even sit in class (I am 19 years old attending college). In addition to this the swelling has barely gone down and is localized to the inside of my knee. I have been keeping the knee elevated and taking advil, icing rarely because of the availability to ice while living in a dorm room. This is my first knee injury so I don't know what to expect and if it is safe to continue to bike and do some upper body workouts until my knee is feeling better. Any suggestions or opinions would be greatly appreciated!
 
There's so much that goes on in your knee that it's impossible to give any opinion based off of just pain and swelling. There could be a sprain of some sort, or it could be something simple like an inflamed bursa. Inside as in deep inside your knee or inside as in the medial aspect?
 
Sorry for not being clear, medial aspect of the knee! I'm going to continue to let it rest and if the pain doesn't subside then I will be going to have it looked at.
 
That would be your best bet, whether it gets better or not. (A lot of stuff will get better but still linger in the background for quite a while.) If it was just impact only, then it probably is just soft-tissue swelling. If your knee happened to bend in an off direction, though, that's something to be a bit more wary about.
 
STRETCHES

Chair knee extension: Sitting in a chair, rest your foot on another chair so the knee is slightly raised. Gently push the raised knee toward the floor using only leg muscles. Hold for 5 - 10 seconds and release. Repeat 5 times on each leg.
Heel slide knee extension: Lie on your back, with left knee bent and left foot flat on floor. Slowly slide the left heel away from your body so both legs are parallel. Hold for 5-10 seconds, return to starting position. Repeat 5 times on each leg.
Knee flexion: Sitting in a chair, loop a long towel under your foot (resting on the floor). Gently pull on the towel with both hands to bend the knee, raising your foot 4 - 5 inches off the floor. Hold for 5 - 10 seconds, then release. Repeat 5 times on each leg.
Hamstring stretch: Standing, put one foot in front of you, toes up. With hands on the small of your back (or one hand holding a chair for balance), bend the opposite knee and hip (not your lower back), until you feel the hamstrings stretch. The upper body comes forward at the hip. Hold for 5 -10 seconds, then release. Repeat 5 times on each leg.

STRENGTH TRAINING

Wall slide: Leaning with your back against a wall, bend your knees 30°, sliding down the wall, then straighten up again. Move slowly and smoothly, using your hands on the wall for balance. Keep feet and legs parallel, and do not allow knees to go out over the toes. Repeat 5 -10 times.
Bent-Leg Raises: Sitting in a chair, straighten one leg in the air (without locking the knee). Hold for about one minute. Bend your knee to lower the leg about halfway to the floor. Hold for 30 seconds. Return to starting position. Work up to 4 reps on each leg.
Straight-Leg Raises: Sitting in a chair, rest your foot on another chair. Lift the foot a few inches off the chair while keeping your leg straight. Hold for 5 -10 seconds. Return to resting position. Repeat 5 -10 times. (Also work on increasing the time, up to 2-3 minutes if possible.)
Abductor Raise: Lie on your side, propped on one elbow. The leg on the floor bent, the other straight. Slowly lift the top leg, hold for 5 -10 seconds, then lower. (Ankle weights will increase the intensity). Do 1-3 sets with 12-15 repetitions each. Remember to rest in between sets.
Hamstring Curl: Stand with the front of your thighs against a surface (a table or wall). Flex one knee up as far as is comfortable. Hold for 5 - 10 seconds, then lower slowly. If possible, do not touch the floor between repetitions. (Ankle weights will increase the intensity.) Do 1-3 sets with 12-15 repetitions each. Remember to rest in between sets.
Step-Ups: Stand in front of a step, like a sturdy bench or stairs, about two feet high (or less if necessary). Step up onto the support, straighten your knees fully (without locking them) and step down. Maintain a steady pace. If you are comfortable with your balance, pump your arms while doing this exercise. Start with 1 minute, slowly building your time. Gets your heart pumping too!
Stationary Bike: Biking is a good way to increase strength and range of motion. Make sure you have the right positioning of the legs. At the bottom of the pedal stroke, the bend in the knee should be 15 degrees. Start with 10 minutes and slowly increase your time.
 
I would recommend doing rehabilitation exercises while using ankle weights, I used this method while recovering from a similar injury and it worked wonders!
 
Hi Kylebos,
I would recommend you to see an orthopedic long island as soon as possible. Its already 11 days and the pain keeps coming back. Instead of taking a risk with your knee its better you get it diagnosed properly. It might just be a bad strain or anything worse. Physical therapy will also be helpful for such injuries. Your PT would know the right exercises you need to undertake for fast recovery. to consult the best orthopedists and get help for your problem. Wish you a speedy recovery!
 
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