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Most ACL injuries can be diagnosed by examining the knee and comparing it to the other, non-injured knee. When a doctor suspects ACL injury in a person who reports a popping sound in the knee followed by swelling, pain, and instability of the knee joint, they can perform several tests to evaluate the damage to the knee.
The Lachman test is a clinical test used to diagnose injury of the anterior cruciate ligament (ACL). It is recognized as reliable, sensitive, and usually superior to the anterior drawer test . [ 1 ]
Most ACL tears are a result of a non-contact mechanism such as a sudden change in a direction causing the knee to rotate inward. As the knee rotates inward, additional strain is placed on the ACL, since the femur and tibia, which are the two bones that articulate together forming the knee joint, move in opposite directions, causing the ACL to tear.
Injuries to the anterior cruciate ligament, aka the ACL, occur commonly in sports. However, research shows that female athletes suffer significantly more ACL injuries than their male counterparts.
Forward Wilson Odobert, who had surgery on a hamstring injury in November, has been absent for 30 games, striker Richarlison has missed 24 and centre-back Micky van de Ven has been out for 21 matches.
An increased amount of anterior tibial translation compared with the opposite limb or lack of a firm end-point may indicate either a sprain of the anteromedial bundle or complete tear of the ACL. [2] If the tibia pulls forward or backward more than normal, the test is considered positive.
The pivot-shift test [1] is one of the three major tests for assessing anterior cruciate injury or laxity, the other two being the anterior drawer and Lachman test. However, unlike the other two, it tests for instability, an important determinant as to how the knee will function. [ 1 ]
Before the injury, Aiyuk had two catches for 23 yards against the Chiefs in the 49ers' Week 7 game. He entered Week 7 with 23 catches for 351 yards and no touchdowns on the season.