ACL injury

Common Name(s)

ACL injury

An ACL injury is the tearing of the anterior cruciate ligament (ACL) in your knee. A ligament is a strong band of tissue that connects one bone to another. The ACL connects the thighbone (femur) to the shinbone (tibia), which helps stabilize the knee. ACL injuries usually occur during sports and fitness activities that cause a person to slow down or change direction quickly. Landing awkwardly from a jump, a football tackle, or a motor vehicle accident can all also injure the ACL. Symptoms that occur when an ACL injury occurs include a loud “pop” sound, severe pain that prevents continued activity, and swelling and instability of the knee. Risk factors include playing in high contact sports, such as American football, and gender. Women are significantly more likely to have an ACL injury due to a strength imbalance between the muscles at the front of the thigh (quadriceps) and the muscles at the back of the thigh (hamstrings).

ACL injuries are typically diagnosed with a physical exam. The doctor will check for swelling and tenderness in the knee and may also move the knee into a variety of positions to determine if the ACL is torn. Images from X-rays, ultrasounds or MRIs may be needed to confirm the diagnosis. Treatment for ACL injuries begins with reducing the swelling and strengthening the muscles around the knee. The doctor will then decide if surgical repair of the ligament with rehabilitation is needed, or if rehabilitation alone is enough to treat the injury. Rehabilitation therapy may include the use of crutches, a knee brace, exercises to regain motion in the knee, and muscle-strengthening and stability exercises. If you have been diagnosed with an ACL injury, talk with your doctor to discuss the treatment plan that is best for you.

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Advocacy and Support Organizations

 

Condition Specific Organizations

Following organizations serve the condition "ACL injury" for support, advocacy or research.

There are currently no organizations listed in Disease InfoSearch that support this condition. Create a listing.

 

 

General Support Organizations

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Scientific Literature

Articles from the PubMed Database

Research articles describe the outcome of a single study. They are the published results of original research.
The terms "ACL injury" returned 43 free, full-text research articles on human participants. First 3 results:

Translation, cultural adaptation and validation of simplified Chinese version of the anterior cruciate ligament return to sport after injury (ACL-RSI) scale.
 

Author(s): Tianwu Chen, Peng Zhang, Yunxia Li, Kate Webster, Jian Zhang, Wei Yao, Yue Yin, Chingchong Ai, Shiyi Chen

Journal:

 

To translate and cross-culturally adapt the anterior cruciate ligament-return to sport after injury (ACL-RSI) into simplified Chinese [ACL-RSI (Cn)].

Last Updated: 31 Dec 1969

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Iatrogenic lateral meniscus anterior horn injury in different tibial tunnel placement techniques in ACL reconstruction surgery - A cadaveric study.
 

Author(s): Ahmet Karakasli, Nihat Acar, Onur Basci, Ahmet Karaarslan, Mehmet Erduran, Erol Kaya

Journal: Acta Orthop Traumatol Turc. 2016 Oct;50(5):514-518.

 

The aim of this study was to analyze the effect of tibial tunnel positioning in single bundle and double bundle ACL reconstructions on lateral meniscus anterior root.

Last Updated: 31 Dec 1969

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Cellular and Morphological Alterations in the Vastus Lateralis Muscle as the Result of ACL Injury and Reconstruction.
 

Author(s): Brian Noehren, Anders Andersen, Peter Hardy, Darren L Johnson, Mary Lloyd Ireland, Katherine L Thompson, Bruce Damon

Journal: J Bone Joint Surg Am. 2016 Sep;98(18):1541-7.

 

Individuals who have had an anterior cruciate ligament (ACL) tear and reconstruction continue to experience substantial knee extensor strength loss despite months of physical therapy. Identification of the alterations in muscle morphology and cellular composition are needed to understand ...

Last Updated: 31 Dec 1969

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Reviews from the PubMed Database

Review articles summarize what is currently known about a disease. They discuss research previously published by others.
The terms "ACL injury" returned 7 free, full-text review articles on human participants. First 3 results:

New perspectives on ACL injury: On the role of repetitive sub-maximal knee loading in causing ACL fatigue failure.
 

Author(s): Edward M Wojtys, Mélanie L Beaulieu, James A Ashton-Miller

Journal: J. Orthop. Res.. 2016 12;34(12):2059-2068.

 

In this paper, we review a series of studies that we initiated to examine mechanisms of anterior cruciate ligament (ACL) injury in the hope that these injuries, and their sequelae, can be better prevented. First, using the earliest in vitro model of a simulated single-leg jump landing ...

Last Updated: 31 Dec 1969

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Critical components of neuromuscular training to reduce ACL injury risk in female athletes: meta-regression analysis.
 

Author(s): Dai Sugimoto, Gregory D Myer, Kim D Barber Foss, Michael J Pepin, Lyle J Micheli, Timothy E Hewett

Journal: Br J Sports Med. 2016 Oct;50(20):1259-1266.

 

The aim of this study was to determine key components in neuromuscular training that optimise ACL injury reduction in female athletes using meta-regression analyses.

Last Updated: 31 Dec 1969

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ACL Research Retreat VI: an update on ACL injury risk and prevention.
 

Author(s): Sandra J Shultz, Randy J Schmitz, Anne Benjaminse, Ajit M Chaudhari, Malcolm Collins, Darin A Padua

Journal: J Athl Train. ;47(5):591-603.

 

Last Updated: 31 Dec 1969

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Clinical Trial Information This information is provided by ClinicalTrials.gov

Last Updated: 18 Oct 2017

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Effects of HMB Supplementation on Recovery Following ACL Surgery
 

Status: Recruiting

Condition Summary: ACL Injury

 

Last Updated: 28 Aug 2017

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Mechanical Perturbation Training for ACL Injury Prevention
 

Status: Recruiting

Condition Summary: Anterior Cruciate Ligament Injury; ACL

 

Last Updated: 9 Mar 2017

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