Understanding Ankle Lateral Ligament Reconstruction in Singapore

If your ankle frequently “gives way” or feels unstable during daily activities, you are not alone.

Chronic lateral ankle instability is a common condition in Singapore. When non-surgical treatments do not provide lasting relief, ankle lateral ligament reconstruction may be considered as a surgical option to improve stability and function.

Dr Zackary Chua

Senior Consultant Orthopaedic Surgeon (Adult & Paeds)

MBBS (Aus)MMed (SG)MRCS (Glasgow)FRCSEd (Orth)

A physiotherapist is holding a skeleton foot model and pointing to its anatomical structure.

Understanding Ankle Lateral Ligament Reconstruction in Singapore

Suitability Techniques Process Recovery Benefits Risks Cost FAQ Conclusion

Introduction

Ankle lateral ligament reconstruction is performed for chronic instability when conservative management is no longer effective. Depending on the condition of the ligament tissue, surgery may involve repair of the existing ligaments (most commonly a modified Broström procedure) or reconstruction using a tendon graft when the ligaments are too damaged for repair.

The goal of surgery is to improve ankle stability, support functional movement, and reduce recurrent episodes of sprains or “giving way”.

How Ankle Lateral Ligament Reconstruction Works

The lateral ligaments on the outer side of the ankle help stabilise the joint during movement. The two key ligaments involved are the anterior talofibular ligament (ATFL) and the calcaneofibular ligament (CFL).

Repeated ankle sprains can overstretch or tear these ligaments, reducing their ability to stabilise the joint. This may also affect proprioception, which is the body’s ability to sense joint position—contributing to a feeling of instability or unexpected “rolling” of the ankle.

Reconstruction aims to restore this stabilising function and reduce abnormal movement patterns such as:

Talar tilt – excessive inward rotation of the talus within the ankle joint
Anterior drawer – forward displacement of the talus relative to the tibia

There are two main surgical approaches our orthopaedic surgeon may consider.

Direct Repair (Modified Broström Procedure)

In suitable cases, the surgeon repairs and tightens the existing ligament tissue by reattaching it to the fibula.

A modified Broström-Gould technique may also be used, where the repair is reinforced by advancing the inferior extensor retinaculum and securing it to the fibula. This provides additional support to the reconstructed ligaments.

Tendon Graft Reconstruction

When the native ligaments are not suitable for repair, a tendon graft may be used to reconstruct the stabilising structure. This may involve autograft (the patient’s own tendon, such as gracilis or peroneal tendons) or allograft (donor tendon tissue).

The graft is positioned to replicate the natural course and function of the original ligaments. The selection of graft type depends on tissue quality, functional demands, and the surgical assessment of what best restores stability for the individual patient.

Ideal Candidates

Recurrent ankle sprains or repeated “giving way” episodes in the same ankle
Ongoing feelings of instability, especially on uneven ground or during sports and daily activities
Symptoms persisting despite structured physiotherapy, including strengthening and balance training
Functional limitations, such as difficulty returning to sports, work, or regular activities due to ankle instability
Clinical signs of ligament laxity confirmed on physical examination
Associated injuries, such as cartilage damage within the ankle joint, may be addressed at the same time
Foot or ankle alignment issues (e.g. cavovarus foot posture) that may contribute to instability and influence treatment planning

Clinical Indicators for Surgery

Surgery may be considered when there is persistent mechanical instability despite a structured course of physiotherapy. This typically includes targeted strengthening, balance training, and activity modification, without sufficient improvement in symptoms.

Other clinical features that may be considered include:

Recurrent inversion sprains or episodes of “giving way” affecting the same ankle, particularly during routine daily activities.
Ongoing functional limitation, such as difficulty with work, household tasks, or recreational activities
Clinical evidence of ligament laxity on physical examination
Associated intra-articular injury, such as cartilage injury within the ankle joint, which may be addressed during the same procedure
Lower limb alignment factors, such as cavovarus hindfoot, which may contribute to instability and influence treatment planning

The Importance of Professional Assessment

A thorough assessment by an orthopaedic specialist is essential to confirm the cause of instability and determine whether surgical reconstruction is appropriate.

This usually follows a period of at least three to six months of structured non-surgical management, including physiotherapy focused on strengthening, proprioception, and functional retraining.

Only after a complete clinical evaluation can a tailored treatment plan be recommended.

Is your ankle still giving way despite physiotherapy?

A specialist assessment can help determine whether ligament laxity is present and whether surgical treatment may be appropriate for your condition.

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Preparing for Your Ankle Lateral Ligament Reconstruction

Once you and the orthopaedic specialist have decided that surgery may be appropriate, a structured pre-operative process helps ensure safety and accurate surgical planning.

Diagnostic Workup

What may feel like a “weak ankle” is assessed through a combination of clinical examination and imaging.

Our orthopaedic specialist may perform specific physical tests, including:

Anterior drawer test – assesses excessive forward movement of the talus, which may indicate ATFL laxity
Talar tilt test – evaluates inward tilting of the ankle joint, which may reflect CFL involvement

Imaging studies help confirm the diagnosis and assess associated conditions:

Weight-bearing X-rays assess bone alignment and rule out fractures or arthritis.
MRI scans evaluate soft tissue structures such as ligaments, cartilage, and tendons, and identify associated injuries like cartilage defects or osteochondral lesions
Stress radiographs may be used to assess ankle stability under controlled stress and are interpreted alongside clinical findings

Pre-Operative Health Screening

Pre-operative assessment helps ensure you are medically fit for surgery and anaesthesia. This may include:

Assessment of general cardiovascular health.
Review of current medications, including blood thinners that may need adjustment.
Blood tests, if required.
Discussion of lifestyle factors such as smoking, which may affect wound healing and recovery

Our specialist may advise optimising these factors before surgery to reduce potential risks.

Prehabilitation

Prehabilitation may be recommended to help prepare the ankle and surrounding muscles for surgery. This typically includes exercises to improve range of motion, muscle strength, and balance and proprioception.

When recommended, prehabilitation helps improve functional conditioning before surgery and may support recovery after the procedure.

What Happens During Ankle Lateral Ligament Reconstruction

Understanding the steps involved in surgery can help reduce uncertainty and prepare you for what to expect. Below is an overview of a typical procedure.

Anaesthesia

The procedure may be performed under general anaesthesia (where you are fully asleep), regional anaesthesia (such as a nerve block that numbs the lower limb), or spinal anaesthesia (which numbs the lower body while you remain awake or lightly sedated).

Your anaesthetist will discuss the most suitable option based on your medical condition and the nature of the surgery.

Incision and Assessment

A small incision is made over the outer (lateral) aspect of the ankle to access the injured ligaments.

The surgeon then assesses the condition of the anterior talofibular ligament (ATFL) and calcaneofibular ligament (CFL) to confirm the extent of injury and guide the surgical plan.

Arthroscopic Evaluation

In many cases, an arthroscopy (keyhole camera examination of the joint) is performed to assess the inside of the ankle joint.

Patients with chronic lateral ankle instability may have associated findings within the joint, such as cartilage irritation, soft tissue impingement, loose fragments, or tendon-related issues.

If present, these conditions may be addressed during the same procedure to help optimise overall joint function.

Repair or Reconstruction

Depending on the condition of the ligaments, the surgeon will proceed with either a direct repair, where the existing ligament is tightened and reattached, or a reconstruction, where a tendon graft is used to recreate ligament stability.

The repaired or reconstructed tissue is secured to bone using suture anchors, which allow the tissue to heal in the correct position.

Closure and Immobilisation

The incision is closed with sutures, and a protective splint or below-knee cast is applied to support the ankle during the initial healing phase.

The duration of surgery varies depending on individual anatomy, severity of ligament injury, and whether additional procedures are required.

A straightforward ligament repair may take around one hour, while more complex reconstruction or additional intra-articular procedures may take longer. Our surgeon will provide a more individualised estimate during consultation.

The Early Post-Operative Phase

During the initial healing period, the focus is on protecting the reconstructed ligaments and allowing the surgical site to heal.

A below-knee cast or posterior splint is commonly used during the first one to two weeks after surgery to protect the ankle and limit movement. This is often followed by a controlled ankle movement (CAM) boot, which allows a gradual progression in weight-bearing over the following weeks.

The total duration of immobilisation varies depending on the surgical technique used, individual healing progress, and your specialist’s rehabilitation protocol. In many cases, some form of boot or brace support is used for approximately six to eight weeks.

Swelling, bruising, and discomfort are common after surgery and are part of the normal healing process.

Post-operative care may include:

Elevating the leg while resting, particularly during the first two weeks.
Applying ice as advised to help manage swelling.
Taking prescribed pain medications according to your specialist’s instructions.
Following weight-bearing and movement restrictions during the early recovery phase

Careful adherence to post-operative instructions is important to support ligament healing during this stage.

Progressive Rehabilitation

Once early healing is satisfactory, rehabilitation typically progresses to a structured physiotherapy programme. This phase commonly focuses on:

Restoring ankle range of motion through guided exercises.
Improve proprioceptive and balance, which helps retrain ankle stability and coordination
Strengthening the surrounding muscles, including the peroneal muscles along the outer lower leg.
Function rehabilitation, which may include balance tasks, hopping drills, and sport-specific movement assessment where appropriate.

Return to running, sports, or higher-demand physical activity is usually measured in months rather than weeks.

Recovery timelines vary depending on:

The type of procedure performed
The presence of associated injuries or additional procedures
Individual healing and rehabilitation progress

Some patients may begin light running earlier in recovery, while higher-impact or contact sports often require a longer rehabilitation period.

Return-to-sport decisions are typically guided by functional recovery, clinical assessment, and individual confidence with movement rather than time alone.

Unsure what recovery may involve after surgery?

A structured rehabilitation plan tailored to your recovery goals may help support a gradual return to daily activities and sport.

Discuss Your Recovery Plan Here

Exploring Your Treatment Options for Ankle Instability

Not everyone with ankle instability requires surgery. Treatment depends on the severity of instability, associated injuries, activity demands, and response to non-surgical management.

Conservative Management vs. Surgical Reconstruction

Structured conservative treatment is usually the first step in managing chronic ankle instability. This may include:

Physiotherapy focused on balance training, proprioception, and strengthening of the surrounding muscles.
Ankle bracing during sports or higher-risk activities for additional support.
Activity modification to reduce recurrent sprains or instability episodes.

Many individuals achieve functional improvement with conservative treatment alone.

Surgical reconstruction may be considered when symptoms persist despite a structured rehabilitation programme, or when there are associated injuries within the ankle joint that may also require surgical management.

Direct Repair vs. Tendon Graft Reconstruction

There are two main surgical approaches for lateral ankle instability: direct repair and tendon graft reconstruction.

In a direct repair procedure, such as the modified Broström-Gould technique, the existing ligament tissue is tightened and reattached to restore stability.

This approach may be suitable when the native ligament tissue remains of adequate quality.

When the ligament tissue is significantly damaged or insufficient for repair, tendon graft reconstruction may be considered.

This involves using a tendon graft to recreate the stabilising function of the damaged ligament.

Our orthopaedic specialist will consider several factors when recommending the most appropriate surgical approach, including:

The quality of the remaining ligament tissue
The degree of ankle laxity and instability
Activity level and sporting demands
Generalised joint laxity or alignment factors
Previous ankle surgery or failed repairs

In some individuals with higher physical demands or more severe instability, reconstruction using a tendon graft may be considered as part of surgical planning. Direct repair and tendon graft reconstruction each have different considerations.

Direct repair preserves the native ligament anatomy and may allow a more straightforward rehabilitation process in suitable cases.

Tendon graft reconstruction may provide additional structural support in more severe cases, although recovery timelines and rehabilitation needs may differ between procedures.

Our specialist will discuss the benefits, limitations, and expected recovery considerations based on your individual condition.

Cost of Ankle Lateral Ligament Reconstruction in Singapore

The cost of ankle lateral ligament reconstruction in Singapore varies depending on factors such as:

The complexity of the procedure
Whether direct repair or graft reconstruction is performed
Hospital and operating theatre fees
Specialist and anaesthetist fees
Surgical implants or fixation devices used
Post-operative rehabilitation requirements

Potential Outcomes and Clinical Goals of Ankle Lateral Ligament Reconstruction

The goal of ankle lateral ligament reconstruction is to improve ankle stability and support functional movement following chronic ligament injury.

For many individuals, surgery aims to reduce recurrent instability and improve confidence during daily activities and physical exercise.

Functional Improvements That May Be Experienced

Following surgery and rehabilitation, some patients may experience:

A reduction in recurrent sprains

Some clinical studies have reported successful outcomes in over 90% of patients following anatomical repair, although individual outcomes may vary.
The potential to return to recreational or sporting activities

Studies have reported that approximately 89% of patients returned to some level of sport following anatomical reconstruction. However, recovery timelines and the ability to return to pre-injury activity levels vary between individuals.
Improved confidence during walking and movement

Particularly on uneven surfaces.
The ability to gradually return to sports or higher-demand physical activities

Depending on individual recovery and rehabilitation progress.

Recovery experiences and activity levels after surgery vary between individuals and depend on several clinical and rehabilitation factors.

Important Qualifiers

Several factors may affect recovery and functional outcomes after surgery, including:

The extent of ligament injury and any associated cartilage or joint damage.
Adherence to post-operative rehabilitation and physiotherapy.
Individual healing capacity, including age, general health, and smoking status.
The presence of other ankle or lower limb conditions that may affect recovery.

Surgery provides structural support for ankle stability, while rehabilitation helps restore strength, balance, and movement control over time.

No surgical procedure can guarantee a specific outcome, and recovery timelines vary between individuals.

Prioritising Your Safety and Understanding Potential Risks

As with any surgical procedure, ankle lateral ligament reconstruction carries potential risks and complications. Our orthopaedic specialist will discuss these with you as part of the informed consent process.

Potential Risks and Complications

Recognised risks associated with ankle ligament reconstruction may include:

Infection at the surgical site.
Nerve irritation or injury, particularly to the superficial peroneal nerve or sural nerve, may cause numbness or tingling around the foot or ankle.
Wound healing complications, particularly in individuals with factors that affect circulation or healing.
Ankle stiffness during recovery.
Persistent pain or discomfort, requiring further assessment.
Recurrent instability, where symptoms of ankle giving way continue after surgery.
Deep vein thrombosis (DVT), which is a blood clot that can occur after lower limb surgery and immobilisation.

Arthroplasty

Common Questions About Ankle Lateral Ligament Reconstruction

How long before I can walk normally again?

Many patients transition from a cast or boot to walking in supportive footwear between six and eight weeks after surgery.

A more natural walking pattern may take around three to four months to develop as strength, balance, and coordination improve during rehabilitation.

Will I be able to run or play sports after surgery?

Return to light running may be considered around four to six months after surgery, depending on individual recovery progress.

Higher-impact or contact sports may require six months or longer. Our specialist will help guide your return based on clinical and functional milestones.

Is the surgery performed under general anaesthesia?

The procedure may be performed under general anaesthesia, regional anaesthesia (such as a nerve block), or spinal anaesthesia.

Your anaesthetist will recommend the most appropriate option based on your medical history and the nature of the surgery.

How long is the scar?

For open procedures, the incision is typically a few centimetres on the outer side of the ankle.

Keyhole (arthroscopic) approaches may involve smaller incisions, although final scar size depends on the surgical technique and whether additional procedures are performed.

Can the ligament tear again after reconstruction?

Recurrent instability is a recognised risk after surgery.

Reported rates vary in the medical literature and depend on several factors, including ligament quality, foot and ankle alignment, generalised joint laxity, activity level, and adherence to rehabilitation.

Returning to high-demand activities too early or incomplete rehabilitation may also increase this risk. Our specialist will assess your individual risk profile and discuss strategies to reduce recurrence risk where possible.

How many sprains are too many before I should see a specialist?

There is no specific number.

If your ankle frequently gives way, feels unstable during daily activities, or does not improve after physiotherapy, a specialist assessment may be appropriate.

Will I need to wear a brace permanently after surgery?

Most patients do not require long-term bracing.

Some individuals may choose to use an ankle brace during higher-risk activities, such as sports or uneven terrain, as an added precaution.

Is the surgery suitable for older adults?

Age alone does not determine suitability for this procedure.

Assessment is based on overall health, activity level, tissue quality, degree of instability, and the presence of other ankle conditions.

Our specialist will evaluate these factors individually to determine whether surgery is appropriate.

Long-Term Stability After Ankle Lateral Ligament Reconstruction

Surgery and rehabilitation form the foundation of recovery, but long-term ankle stability is also supported by ongoing care and maintenance.

Regular follow-up appointments allow your orthopaedic specialist to monitor healing, assess stability, and address any concerns if they arise.

Maintaining strength and proprioception gains achieved during rehabilitation is important over time. This may include appropriate footwear, continued strengthening exercises, and activity-specific conditioning where needed.

Long-term ankle health is supported by both surgical reconstruction and continued attention to movement, strength, and stability.

Considering your options for ankle instability?

A consultation with our orthopaedic surgeon in Singapore can help assess your condition and discuss appropriate treatment options, including both non-surgical and surgical approaches.

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Dr Zackary Chua (蔡克祥医生)

Senior Consultant Orthopaedic Surgeon (Adult & Paeds)

MBBS (AUS)|MMed (Singapore)|MRCS (Glasgow)|FRCSEd (Orth)

A senior consultant orthopaedic surgeon with dual specialisations in Foot & Ankle Surgery and Paediatric Orthopaedics. Backed by his extensive years of training and experience, Dr Chua brings the necessary knowledge and skills to ensure a smooth recovery journey.

Rooted firmly by two fundamental philosophies: “When one’s feet hurt, one hurts all over” and “Children are not little adults”, Dr Chua’s approach to patient care reflects his compassionate care for adults and children.

Singhealth Quality Excellence Award – Silver (2011)
Service From the Heart Award (2021)
Singapore Health Quality Service Award – Gold (2023)
NUS Medicine Dean’s Award for Teaching Excellence (2023)

His active participation in the medical community extends to mentoring, research supervision, and contributions to key professional forums and symposiums, both locally and internationally.