Anterior cruciate ligament repair is a topic that often causes confusion for patients and families in Bangladesh. In my practice, many people use the word “repair” to mean any surgery done for an ACL injury. However, in orthopedic practice, ACL repair and ACL reconstruction are not exactly the same procedure. That distinction matters because the right treatment depends on the type of tear, the patient’s age, knee stability, activity level, and associated injuries.

I usually explain to my patients that the ACL is one of the main stabilizing ligaments inside the knee. It helps control forward movement and rotational stability of the tibia under the femur. When the ACL tears, the knee may feel unstable, especially during turning, pivoting, sudden stopping, landing, or sports activities [1][3].

For Bangladeshi patients, this injury is common not only in competitive athletes, but also in people who play football, cricket, badminton, basketball, or who twist the knee during a fall, road traffic incident, or daily activity. The important point is that not every ACL injury needs the same treatment, and not every patient is a candidate for ACL repair.

What is anterior cruciate ligament repair?

ACL repair means trying to preserve and reattach the patient’s original torn ACL tissue rather than replacing it with a graft. This is different from ACL reconstruction, where the torn ligament is replaced using tendon tissue, usually from the patient’s own body or sometimes from a donor source [1][2].

Repair is not suitable for every ACL tear

One important point I want Bangladeshi patients to understand is that ACL repair is usually considered only in selected cases. According to current orthopedic guidance, repair may be an option in certain proximal tears, especially when the ligament has pulled away from its femoral attachment and the tissue quality is still good [1][2]. Long-term evidence still supports ACL reconstruction more strongly than routine ACL repair in most patients [2][4].

That means if a patient searches for “ACL repair” in Dhaka, the actual surgery offered after proper evaluation may still be ACL reconstruction rather than direct repair. This is not a contradiction. It is simply the safer and more established choice in many cases.

How does an ACL tear happen?

In my practice, I often see ACL injuries happen in the following ways:

• sudden twisting while the foot is planted
• awkward landing from a jump
• sudden change of direction during football or badminton
• knee hyperextension
• collision or direct trauma to the knee

Many patients describe hearing or feeling a “pop” at the time of injury. Swelling often develops within a few hours, and the knee may feel weak or unstable [3].

Symptoms that may suggest an ACL injury

ACL injury symptoms can vary, but common features include:

• a popping sensation at the time of injury
• rapid swelling of the knee
• pain with walking or bearing weight
• knee giving way or buckling
• difficulty turning or pivoting
• reduced confidence in the knee during movement

Sometimes the initial pain improves after a few days, and the patient thinks the problem is over. But if the knee remains unstable, the risk of repeated episodes and additional damage to the meniscus or cartilage can increase [2][4].

When should you seek urgent evaluation?

Please seek urgent medical evaluation if:

• the knee is severely swollen after a twisting injury
• you cannot bear weight at all
• the knee feels grossly unstable
• there is locking and inability to straighten the knee
• there is obvious deformity
• there is severe pain after a road traffic injury or fall
• numbness, coldness, or vascular compromise is suspected

These situations may indicate not only ACL injury, but also fracture, meniscus entrapment, knee dislocation, or multi-ligament injury.

How I assess a patient with suspected ACL injury

When I evaluate patients with this problem, I do not rely on MRI alone. A careful history, examination, and understanding of the patient’s goals are all important.

Clinical history

I ask about:

• how the injury happened
• whether there was a pop
• how quickly swelling developed
• whether the knee gives way
• the patient’s work and sports demands
• any previous knee injuries
• whether there are symptoms of locking, catching, or repeated instability

Physical examination

Examination usually includes checking:

• swelling
• knee range of motion
• tenderness
• ligament stability tests
• meniscal signs
• associated injury to other ligaments

Imaging

X-rays are useful to rule out fracture or bony avulsion. MRI is often very helpful because it can show the ACL tear pattern and look for meniscus, cartilage, and other ligament injuries [3]. This is especially important when deciding whether a patient may be a repair candidate or whether reconstruction is the more realistic option.

Who may be considered for ACL repair?

ACL repair is generally considered in a narrower group of patients than ACL reconstruction.

Situations where repair may be considered

ACL repair may be considered when:

• the tear is near the femoral attachment
• the torn ligament tissue is of good quality
• the injury is relatively recent
• the knee does not have severe chronic instability
• the surgeon believes the tissue pattern is favorable during assessment

Situations where repair may not be the best choice

Repair is often less suitable when:

• the ACL is torn in the middle
• the tissue is frayed or poor quality
• the injury is old or chronic
• there are repeated instability episodes
• there are associated complex injuries needing a more durable solution