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Dr Seng Chusheng
Consultant Orthopaedic Surgeon

MBBS (Singapore), MRCS (Edinburgh), MMed (Orth), FRCS (Edinburgh)

ACL Reconstruction Surgery

An anterior cruciate ligament, or ACL, tear can significantly compromise knee stability and make even simple movements such as walking, turning or climbing stairs feel uncertain. Many individuals also experience swelling, pain and a sensation of the knee giving way, particularly during pivoting or weight bearing activities.

When structured rehabilitation is insufficient, ACL reconstruction surgery may be considered to repair persistent instability, restore daily function and support a safe return to physical activity.

A doctor pointing to a diagram of an ACL

What Is ACL Surgery?

ACL surgery, also known as ACL reconstruction, is performed to restore stability to a knee with a torn anterior cruciate ligament. The procedure involves replacing the damaged ligament with a tissue graft that acts as a new stabilising structure.

The graft used for reconstruction may come from one of two sources:

  • Autograft - Tissue taken from the patient’s own body, commonly from the patellar, hamstring or quadriceps tendon.
  • Allograft - Donor tissue, which avoids a second surgical site and may be considered for selected patients.

The choice of graft depends on factors such as activity level, age and overall knee condition. The surgical procedure is fully discussed during consultation with an orthopaedic specialist.

A woman with an ACL injury

When Is ACL Reconstruction Needed?

An ACL tear cannot heal on its own due to limited blood supply. While structured rehabilitation and physical therapy may allow some individuals to manage everyday activities, it does not restore ligament stability. A damaged ACL may lead to persistent issues with stability, causing an adverse effect on daily life.

ACL reconstruction may be recommended when:

  • The knee feels unstable or repeatedly gives way during movement  
  • Returning to sports that involve pivoting, jumping or rapid direction changes is a priority
  • Knee instability interferes with daily activities or weight-bearing tasks
  • There are associated injuries, such as a meniscal tear, that require a stable knee for healing
  • Rehabilitation alone does not provide adequate strength or stability

At Axis Knee Pain Clinic, we assess the severity of your ACL injury and recommend ACL reconstruction surgery when stability cannot be restored through rehabilitation alone.

Consult our knee pain clinic to determine if ACL surgery is right for you.

What Happens During the ACL Surgery Process

A typical ACL reconstruction takes about 1–2 hours and is often performed as a day procedure or with a short hospital stay.

1. Anaesthesia
2. Graft Preparation
3. Knee Assessment and Preparation
4. Graft Placement and Fixation
5. Closure and Protection

Recovery and Rehabilitation

Recovery after ACL reconstruction follows a structured rehabilitation program focused on restoring knee strength, stability and function.

Early Recovery
Rehabilitation Phase
Return to Activity

Throughout recovery, regular guidance from a physiotherapist supports safe progression. Adhering to the rehabilitation plan helps optimise outcomes and reduce the risk of re-injury.

Risks of ACL Reconstruction Surgery

ACL reconstruction is generally safe, but as with any surgery, some risks may occur. These are uncommon and carefully managed.

Possible risks include:

  • Infection
  • Bleeding or blood clots
  • Knee stiffness or reduced range of motion
  • Graft failure or re-tear
  • Temporary discomfort at the graft site

A comprehensive consultation with an orthopaedic specialist allows you to carefully balance the potential risks and benefits, while ensuring appropriate planning to reduce the likelihood of complications.

Why Choose Us for ACL Reconstruction Surgery?

Axis Knee Pain Clinic offers:

20+ Years of Experience

Our orthopaedic surgeon, Dr Seng Chusheng, is experienced in managing a wide range of knee conditions and has performed many knee surgeries, including total knee replacement procedures.

Minimally Invasive Techniques

Where appropriate, we use minimally invasive and robotic-assisted techniques to support surgical accuracy and reduce soft tissue disruption, which may help with post-operative recovery.

Personalised Patient-Centric Care

We tailor each treatment plan based on the individual’s condition, activity level and overall health, with the aim of supporting safe recovery and functional improvement.

Comprehensive Care & Patient Comfort

Our clinic provides holistic care across every stage of treatment, from pre-surgical assessment to post-operative rehabilitation, with attention to comfort, safety and clear communication.

Frequently Asked Questions About Knee Replacement Surgery

推荐进行膝关节镜手术(微创手术),以获得最佳效果并尽量减少风险、不适、疤痕和康复时间。膝关节镜手术使用一个小型摄像头(膝关节镜)来检查你的膝关节内部,并使用微型手术器械修复和重建受影响的部位。

How do I know if I need ACL surgery?

Can a torn ACL heal without surgery?

What happens to untreated ACL injuries?

What are the available ACL surgery options?

When can I go back to work or sports after ACL surgery?

Portrait of Dr Seng Chusheng, Consultant Orthopaedic Surgeon

Our Knee Replacement Surgeon

Dr Seng Chusheng

Consultant Orthopaedic Surgeon

MBBS (Singapore), MRCS (Edinburgh), MMed (Orth), FRCS (Edinburgh)

Dr Seng Chusheng is a consultant orthopaedic surgeon with a clinical focus on knee conditions and orthopaedic trauma. With over 20 years of surgical experience, he has performed over 1,000 orthopaedic and sports surgeries, including ACL reconstructions. His approach integrates evidence-based care with individualised treatment planning, supporting pain relief, mobility and functional recovery. He has also presented at numerous orthopaedic conferences, including the American Academy of Orthopaedic Surgeons (AAOS) Annual Scientific Meeting.

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