Doctor insights on:
Cause Of Anterior Cruciate Ligament
Knee hyperextension: The ACL may tear when certain movements of the knee place a great strain on the acl. Hyperextension of the knee, that is, if the knee is straightened more than 10 degrees beyond its normal fully straightened position, is a very common cause of an torn acl. This position of the knee forces the lower leg excessively forward in relation to the upper leg. Pivoting injuries of the knee with exc. ...Read moreSee 2 more doctor answers
Swelling/bone bruise: Initial pain after tearing your acl is due to 3 main reasons. 1) bleeding from the tear fills the knee exerting pressure on the capsule which is very sensitive to pressure. 2) the forces that cause the tear cause the femur and tibia to smack together leaving characteristic bone bruises in the femur and tibia. 3) additional injuries, most commonly meniscus tears can add to the pain of acl injury. ...Read moreSee 1 more doctor answer
Scope: If it has torn completely and you have instability, may need arthroscopic acl reconstruction, especially if you are an active individual. Many orthopaedic surgeons will have the swelling subside, might get the individual into pt to optimize range of motion, then rehab is also important after surgery. For a small # of people who are very inactive, they may opt for conservative treatment. ...Read more
Knee: Cruciate ligament are in knee .Get a more detailed answer ›
Ligament sprain/tear: The acl is a ligament inside the knee that helps to keep the knee stable - keeps it from moving too far forward or backward. It works with the posterior cruciate ligament (pcl) to accomplish this. The acl is often injured when running or other fast movements when the lower leg is planted on the ground and the knee is bent and twisted. It can be a strain or sprain or a complete tear. ...Read moreSee 1 more doctor answer
Several months: Torn anterior cruciate ligaments (acl) are routinely reconstructed via surgery. The graft used to replace the acl is placed in bony sockets or tunnels and secured with various forms of fixation devices. True healing only occurs when your body incorporates the graft biologically via strong bonds where the ligament touches the bone and the ligament matures and becomes strong--this takes 3-6 months. ...Read more
Knee instability: The anterior cruciate ligament (acl) is one of four major ligaments in the knee to help maintain knee stability (the others include the posterior cruciate ligament - pcl, lateral collateral ligament - lcl, and the medial collateral ligament - mcl). The ACL is the most significant of the four and helps prevent the lower leg from sliding forward from the upper leg. ...Read moreSee 1 more doctor answer
Several!: Bike riding. Resistance exercise to get your biceps femoris 2/3 as strong as your quads. (leg curls!) these are the two best two prevent recurrence and not to develop degenerative arthritis! there are sporting activities that should be avoided that involve pivoting and contaqct! ...Read more
Discuss w/ Ortho MD: Most torn acls eventually require surgical reconstruction in young active patients who desire to return to any sort of activities that require changing direction or quick starting and stopping. A thorough examination of your knee detailing any other concomitantly injured structures (meniscal tear, cartilage injury, etc.) will also dictate your indication and timing for potential acl surgery. ...Read more
Yes: We call it acl reconstruction or anterior cruciate ligament reconstruction. We remove the dysfunctional acl and replace it with a tendon of similar size by placing it within tunnels drilled in the original position of the acl. The tendons come from your own knee or can be taken from donor cadaver tendons of the knee, foot, or ankle. Acl reconstruction tend to be very successful surgeries. ...Read more
Yes: Yes, acl replacement with a cadaveric tendon or reconstruction with patients own tendons, is a common way of treating the injured acl. ...Read more
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