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ANTERIOR CRUCIATE LIGAMENT INJURIES - Sports Medicine injuries ligamentThe volleyball match has been going on for over an hour Both teams have been trading points and side-outs The ball is set high outside so that the big outside hitter can put the ball away She comes in hard plants leaps into the air and smashes the ball down the line in a twisting motion As she lands on her right leg a POP is heard and down she goes What has just happened is occurring more and more often in athletics the athlete has just torn the anterior cruciate ligament ACL In this paper I will describe ACL how it is injured and diagnosed how it be repaired and what is being done to prevent ACL injuries The Anterior Cruciate Ligament ACL is one of the two cruciate ligaments of the knee the other being the Posterior Cruciate Ligament PCL These ligaments are the stabilizers of the knee The ACL is a strip of fibery tissue which is located deep inside the knee joint It runs from the posterior side of the femur thigh bone to the anterior side of the tibia shin bone deep inside of the knee The ligament is a broad thick cord the size of a persons index finger It has long collagen strands woven together in a fashion that permits forces of up to 500 pounds to be exerted The function of the ACL is to prevent the tibia from moving in front of the knee and femur The ACL also prevents hyperextension or extreme stretching of the knee backward and helps to prevent rotation of the tibia The amount of knee ligament injuries have been on the rise in recent years Over the last 15 years ankle sprains have decreased by 86 and tibia fractures by 88 but knee ligament injuries have increased by 172 The injury usually occurs in either a slow twisting fall a sudden hyperextension or
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