Anterior cruciate ligament (ACL) tear, what sports enthusiasts should never ignore

ACL tear (or ACL injury) is a condition when the anterior cruciate ligament (ACL) becomes injured, resulting in a tear. The anterior cruciate ligament is a crucial ligament for walking and regularly experience injury. The common causes are sports activities or accidents.
ACL injury symptoms include feeling a popping sound in the knee, pain or discomfort around the knee area, noticeable swelling in the knee, inability to bear full weight when walking, severe pain that prevents continuing activities, and feeling that the knee is loose or unstable during various activities.
There are 2 main treatment methods for ACL tears and injuries: non-surgical and surgical ACL tear treatment methods. Choosing proper treatment depends on various factors including severity, degree of knee injury, activities in daily life, and knee usage. For patients with mild injuries, ACL injury treatment can be achieved through ACL rehabilitation methods, muscle strengthening practices, and exercises to improve the knee’s range of motion, balance, and proper movement techniques. In cases where patients have complete ACL tears, partial ACL tears, engage in activities requiring significant knee rotation, or have injuries to other parts of the knee, surgical treatment becomes necessary. Anterior cruciate ligament surgery (ACL Reconstruction), a surgery using tendons from other parts of the body to replace the anterior cruciate ligament (ACL), allows patients to recover more quickly by typically using an arthroscopic surgical method.
Standing out among specialized orthopedic hospitals in Thailand is kdms Hospital in Bangkok, where an experienced medical team specializing in bone, joint, and muscle conditions is ready to help you. Additionally, we provide accurate diagnosis for anterior cruciate ligament (ACL) using advanced technology to ensure precise treatment planning.

Anterior cruciate ligament (ACL) tear is a condition that sports enthusiasts and women should not overlook as they have a higher risk of developing ACL injuries or inflammation, which can significantly impact daily life. Therefore, this article will help everyone become more familiar with ACL tears to be able to self-evaluate the symptoms. Determining ACL injury symptoms can help identify the cause of knee injury, and eventually seek proper diagnosis and treatment.

Table of Contents

What is an anterior cruciate ligament (ACL) tear?

ACL tear (or ACL injury) is a condition when the anterior cruciate ligament (ACL) becomes injured, resulting in a tear. The anterior cruciate ligament is a crucial ligament for walking, performing daily activities, and moving during various sports activities because its roles include maintaining knee stability, controlling movement, preventing the knee from over-rotation, helping to lock the knee securely, and preventing knee injury during use.

ACL injury is regularly experienced and the common causes are sports activities or accidents. Therefore, when the incident leads to an ACL tear, immediately see a doctor and receive treatment. If left untreated, it may bring knee osteoarthritis to your knee.

What causes ACL tears?

The causes of anterior cruciate ligament (ACL) injuries can be categorized into two main reasons: sports-related injuries and accident-related injuries. The actions or injuries from both causes that lead to ACL tears or inflammation include:

Sports activities

Sports activities are a common cause of ACL tears because certain sports require rapid and agile movements throughout the game, such as football, basketball, or rugby. These are also sports that may involve weight-bearing on the knees, impacts, collisions, or knee rotation while the leg is still extended, often resulting in ACL injury, inflammation, or tears.

Accidents

Accidents are another major cause of ACL tears or injuries, occurring when the knee area receives direct impact or force from accidents such as falls, falling down stairs, car accidents, or minor ones that cause knee impact. These incidents can result in ACL injury or tears.

Who is at risk for ACL tears?

Although it may seem very difficult or less possible for many people to experience anterior cruciate ligament (ACL) inflammation or ACL injuries, there are still two groups that have a higher chance of ACL tears compared to others:

Women

Women have a higher risk for ACL tears than men because of their body structures. Women’s knees have a greater angle and typically have less muscle strength, making women more prone to ACL injuries during movements such as jumping or other activities.

Sports enthusiasts

Sports enthusiasts and athletes are considered a group with high risk for ACL tears as well because the common causes of ACL tears often come from sports activities. Moreover, there are constantly changing movements during a game including acceleration, stopping, jumping, and rapid direction changes, which may cause the knee to be jerked. The incident leads to ACL injury or inflammation. Additionally, there are impacts or collisions during play that increase the risk of ACL or knee injuries.

What are the symptoms of ACL tears?

Anterior cruciate ligament (ACL) tears cause various symptoms that are able to indicate whether a patient has this condition. ACL injury symptoms that can be self-observed include:

Feeling a popping sound in the knee
Feeling pain or discomfort around the knee area
Noticeable swelling in the knee
Inability to bear full weight when walking
Severe pain that prevents continuing activities
Feeling that the knee is loose or unstable during various activities

If patients observe or find these symptoms indicating an ACL tear, they should immediately visit doctors for diagnosis and treatment to prevent further ACL injury and maintain normal daily life.

How are ACL tears diagnosed?

The method for examining an ACL tear begins with medical diagnosis. Firstly, patients will receive history taking and physical examination to determine if the anterior cruciate ligament (ACL) is injured. X-rays may be performed along with MRI to examine the injury in detail and more clearly. Doctors will also check for other knee injuries that may accompany an ACL tear in order to plan treatments correctly and appropriately for each patient’s symptoms.

What are the treatment methods for ACL tears?

For patients with anterior cruciate ligament (ACL) injuries or ACL tears, they may wonder about ACL injury treatment methods or may have concerns about treatment, such as whether ACL tears can heal on their own or without surgery, or whether they can walk after surgery. There are 2 main treatment methods for ACL tears and injuries:

Non-surgical ACL tear treatment methods

Did you know that ACL injuries don’t necessarily require surgical treatment in every case? It depends on various factors including severity, degree of knee injury, activities in daily life, knee usage, or knee instability symptoms. For patients with partial injuries from activities or knee usage which doesn’t require significant knee rotation, ACL injury treatment can be achieved through ACL rehabilitation methods, muscle strengthening practices, and exercises to improve the knee’s range of motion, balance, and proper movement techniques. This alone can enable patients to return to normal daily life.

Surgical ACL tear treatment method

In cases where patients have complete ACL tears, partial ACL tears, engage in activities requiring significant knee rotation, or have injuries to other parts of the knee, surgical treatment becomes necessary. Anterior cruciate ligament surgery (ACL Reconstruction), a surgery using tendons from other parts of the body to replace the anterior cruciate ligament (ACL), allows patients to recover more quickly by typically using an arthroscopic surgical method. Combined with physical therapy and appropriate rehabilitation, anterior cruciate ligament surgery results in restored knee stability which enables patients to fully return to daily life and perform activities or sports as well as before.

Consult symptoms before scheduling an appointment.

Tue, 06 Jan 2026

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