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Rg3's Injury

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The ACL crosses diagonally in the middle of the knee behind the patella and it connects the tibia to the femur. Its function is to prevent the tibia from sliding in front of the femur and to prevent overextension of the knee. The LCL connects the femur to the fibula and its function is to keep the lateral side of the knee stable. RG3’s injury is due to an ACL and LCL tear. The ACL was torn when his foot planted in the field and his knee cut into internal rotation. His LCL was torn due to excessive knee adduction. He was susceptible to this turn of events due to a prior injury caused by landing wrong after a jump. When he performed the long jump his knees internally rotated past their range of motion.
When RG3 performed the long jump his knees …show more content…

The hamstrings action is knee flexion and hip extension, its origin is at the ischial tuberosity, its insertion is at the posterior aspect of the medial condyle of the tibia, and it is innervated by the sciatic nerve. To strengthen and stretch these two muscles, I would recommend that he lie flat on his back and put a resistance band at the arch of his foot. He should bring his knee to his chest, and then try to extend the leg against resistance. This will strengthen his quadriceps and hamstrings but the resistance band will also keep his knee from hyperextending from side to side. The gracilis’ action is adduction and internal knee rotation, its origin is at the pubic ramus, its insertion is at the medial surface of the tibia below the condyle, and its innervated by the femoral nerve and the obturator nerve. Lying sideways with the injured leg straightened on the floor, he should cross the uninjured leg in front of the injured one. This will force the injured leg to extend and bear weight. The gluteus maximus’ action is extension, external rotation, and hip abduction. The origin is at the ilium, sacrum, and coccyx, the insertion is at the lateral surface of the greater trochanter, and it is innervated by the inferior gluteal nerve. Lying on the side of the uninjured leg

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In healthy individuals, anterior rotation of the innominate occurs during extension of the freely swinging leg. When the innominate anteriorly rotates, it glides inferiorly down the short arm and posteriorly along the long arm of the SIJ. In non-weights bearing an arthrokinematic glide between the innominate and the sacrum occurs during posterior rotation of the innominate and is physiological (i.e., follows the articular surfaces). In weight bearing, the close-packing of the SIJ precludes this physiological glide. Sacral nutation produces the same relative arthrokinematic glide as posterior rotation of the innominate (inferoposterior motion of the sacrum is the same as anterosuperior motion of the innominate); sacral counternutation produces the same arthrokinematic glide as anterior rotation of the innominate (anterosuperior motion of the sacrum is the same as inferoposterior motion of the

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When injuries of this type and severity happen to the tibia and thalus the joint rarely returns to its normal function. As the blood supple to the surrounding cartilage is damaged leading to arthritis and the the bones never truly align correctly. Dave will have to be traction to try and straighten the ankle while under heavy medication for both pain and two relax the muscles. 4. Cole's meniscal injury caused a "locked " knee -  he couldn't extend his leg fully.

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3. His indestructible knees Some may say the injuries Griffin has suffered are a result of his reckless play, a price to pay for his run and gun style, and the fact he cannot see trouble even if it was bearing down on him in a JJ Watt shaped package. Oh wait...

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This could happen because of a few reasons. The main reason for a second tear is the athlete going back to their sport too quickly. As soon as an athlete is even feeling better, they are completely eager to get back to doing what they love. Going back to a sport too soon after an ACL injury puts an athlete at high risk to tear their ACL once again (Knee Injuries on the Rise in Young Athletes). 11.

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While lifting onto the toes during backwards marching many muscles are used. The flexor digitorum longus is a muscle in the leg that extends from the posterior surface of the tibia to the foot, and assists the leg in plantar flexion of the foot. Originating in the lateral condyle of the tibia and the head and shaft of the fibula, and has an insertion of the tarsal and metatarsal bones. The flexor digitorum longus divides into four parts upon insertion, connecting to the terminal bones of the four lateral toes. The tibialis posterior is located on the posterior side of the leg just as the flexor digitorum longus is, this muscle is the deepest of the muscle on the back of the leg.

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