Cartilage Injury (Osteochondral Injury) In Singapore

Experiencing persistent ankle pain or discomfort that doesn’t heal? You might be dealing with a cartilage injury, also known as an osteochondral injury. These injuries affect the smooth cartilage surface and underlying bone in your ankle joint, often resulting from trauma or repetitive stress. At ACME Orthopaedics, we understand how these injuries can impact your mobility and quality of life. Our orthopaedic surgeon can evaluate your condition and provide guidance on appropriate management options for foot and ankle cartilage injuries, helping you understand ways to manage symptoms and maintain ankle function.

Dr Zackary Chua

Senior Consultant Orthopaedic Surgeon (Adult & Paeds)

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

Types Causes & Risks Symptoms When to see a Doctor Diagnosis Treatment Complications FAQ Conclusion

What is a Cartilage Injury (Osteochondral Injury)?

A cartilage injury, medically termed an osteochondral injury, involves damage to both the articular cartilage (the smooth, protective surface covering the ends of bones) and the subchondral bone (the bone layer just beneath the cartilage). In the ankle, these injuries commonly affect the talus bone (the bone that connects the foot to the lower leg and allows ankle movement). The cartilage acts as a cushion to reduce friction and enable smooth movement of the joint, so damage to this tissue can cause pain, swelling, and reduced ankle motion.

Ankle cartilage injuries are common among active individuals and athletes. These injuries may range from minor cartilage softening to deeper damage involving the bone, and many cases go undiagnosed initially because early symptoms can be mild or mistaken for a simple ankle sprain.

Types of Cartilage Injuries

Cartilage injuries in the foot and ankle can be classified into several categories based on their severity and characteristics.

Acute Osteochondral Fractures

These injuries occur suddenly, often due to a severe ankle sprain or direct trauma. A fragment of cartilage, sometimes including underlying bone, becomes detached from the joint surface. These fractures often happen during sports or accidents involving twisting or impact to the ankle.

Osteochondral Lesions of the Talus (OLT)

Also known as talar dome lesions, these are common types of ankle cartilage injuries. They can develop gradually from repetitive microtrauma or occur acutely. The location of the lesion on the talus bone affects symptoms and treatment approaches.

Chronic Degenerative Changes

Long-term cartilage damage can lead to progressive deterioration of the joint surface. This type develops over months or years, often resulting from untreated acute injuries or repetitive stress on the ankle joint.

Post-traumatic Arthritis

Severe or untreated cartilage injuries can progress to post-traumatic arthritis. This involves widespread cartilage loss and joint degeneration, affecting ankle function.

Causes

Ankle sprains and instability: A common cause, particularly severe inversion injuries
Direct trauma: Falls, motor vehicle accidents, or sports-related impacts
Repetitive microtrauma: Continuous stress from high-impact activities
Previous ankle fractures: Malunion or joint surface irregularities
Avascular necrosis: Disrupted blood supply to the bone

Risk Factors

Sports participation: Such as basketball, football, gymnastics, and dance
Previous ankle injuries: History of sprains increases risks
Ankle instability: Chronic ligament laxity predisposes to cartilage damage
Age: Can occur at any age; occurs in active young adults
Biomechanical abnormalities: Flat feet, high arches, or abnormal gait patterns
Occupational factors: Jobs involving jumping, pivoting, or working on uneven surfaces
Body weight: Excess weight increases stress on ankle cartilage

Signs & Symptoms

The symptoms of cartilage injuries vary depending on the severity and chronicity of the damage.

Mild Symptoms

Deep ankle pain during or after activity
Mild swelling around the ankle joint
Occasional catching or clicking sensations
Stiffness after rest
Slight decrease in ankle flexibility

Moderate Symptoms

Persistent pain even with daily activities
Noticeable swelling that worsens with use
Frequent locking or catching of the ankle
Difficulty on stairs or uneven surfaces
Inability to participate in sports
Pain that disrupts sleep

Severe Symptoms

Constant pain, regardless of activity
Significant swelling and joint effusion
Complete inability to bear weight
Severe mechanical symptoms (locking, giving way)
Visible deformity or ankle instability
Signs of infection (fever, warmth, redness)

Symptoms may appear immediately after an injury or gradually over weeks to months. The pain is often localised to the area of cartilage damage and worsens with weight-bearing activities.

Experiencing these symptoms? Don’t wait for them to worsen.

Concerned about persistent ankle pain? Discuss suitable treatment options with a specialist today.

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When to See a Doctor

Recognising when to seek professional medical attention can help prevent long-term complications and improve recovery outcomes.

Seek immediate medical attention if you experience:

Severe pain and inability to bear weight on the affected ankle
Obvious deformity or significant swelling
Numbness or tingling in the foot
Signs of infection such as fever, redness, or warmth
Open wounds or visible bone

Schedule a consultation if you notice:

Persistent ankle pain lasting more than 2-3 weeks
Recurrent swelling after activity
Mechanical symptoms like catching or locking
Difficulty performing daily activities or participating in sports
Previous ankle injury that hasn’t fully recovered

During your first consultation, our orthopaedic surgeon will perform a comprehensive evaluation including detailed history-taking, physical examination, and diagnostic imaging. Early evaluation often allows for a wider range of treatment options and may help prevent progression to arthritis.

Diagnosis & Testing Methods

Accurate diagnosis is crucial for determining the appropriate treatment approach for cartilage injuries.

Clinical Examination: Our orthopaedic surgeon will perform tests to assess ankle stability, range of motion, and areas of tenderness. Special attention is given to identifying the exact location of pain and any mechanical symptoms.
X-rays: Standard X-rays are the first imaging study performed. While cartilage itself isn’t visible, X-rays can show bone fragments, joint space changes, or other bone abnormalities associated with osteochondral injuries.
MRI (Magnetic Resonance Imaging): MRI provides detailed images of both cartilage and bone, allowing assessment of lesion size, depth, and stability. Special sequences can evaluate cartilage quality and detect early degenerative changes.
CT Scan (Computed Tomography): A CT scan may be used to evaluate the bony component of osteochondral lesions and assist with surgical planning. It provides detailed views of bone structure and fragment positioning.
Diagnostic Arthroscopy: In some cases, arthroscopic examination provides a more accurate assessment of cartilage damage. This minimally invasive procedure allows direct visualisation and can be combined with treatment.

Results from imaging studies are typically available within 1-2 days, allowing prompt management and treatment planning.

Treatment Options Overview

Treatment for cartilage injuries ranges from non-surgical management to surgical procedures, aiming to relieve symptoms and restore ankle function. *Individual results and timelines may vary.*

Non-Surgical Treatments

Activity Modification and Rest: Reducing activities that stress the ankle joint is the first step. This may include avoiding high-impact sports and modifying daily activities to minimise pain. Protective weight-bearing with crutches may be recommended for acute injuries.
Physiotherapy: Rehabilitation focuses on restoring ankle range of motion, strength, and proprioception. Specific exercises target the muscles supporting the ankle joint while avoiding excessive stress on damaged cartilage. Therapy may continue for several months.
Medications: Anti-inflammatory medications help reduce pain and swelling associated with cartilage injuries. These may include oral NSAIDs or short courses of oral steroids for acute flare-ups.
Injection Therapies: Corticosteroid injections can provide temporary relief from inflammation and pain. Options include hyaluronic acid injections to improve joint lubrication and platelet-rich plasma (PRP) injections to potentially support healing.
Bracing and Orthotics: Custom ankle braces provide stability and reduce stress on damaged cartilage. Orthotic insoles can help correct biomechanical abnormalities that contribute to abnormal joint loading.

Surgical Treatments

Arthroscopic Debridement: For unstable cartilage fragments or loose bodies, arthroscopic removal and smoothing of damaged areas can help relieve mechanical symptoms. This minimally invasive procedure allows faster recovery.
Microfracture Technique: Small holes are created in the bone beneath the injury to stimulate new fibrocartilage formation. This technique may be effective for smaller lesions in younger patients with good bone quality.
Osteochondral Autograft Transplantation (OATS): Cartilage and bone from a non-weight-bearing area are transplanted to restore the damaged region using the patient’s own tissue. This technique is suitable for focal lesions and provides hyaline cartilage repair.
Autologous Chondrocyte Implantation (ACI): A two-stage approach where cartilage cells are collected, grown in a lab, and then implanted into the injured area. It’s reserved for larger lesions in younger, active patients.
Allograft Transplantation: In cases of extensive cartilage damage, transplantation of donor cartilage and bone may be considered. This option is useful for large osteochondral lesions that cannot be repaired with the patient’s own tissue.
Ankle Joint Replacement or Fusion: For severe cartilage damage with advanced arthritis, joint replacement or fusion may be considered. These are salvage procedures reserved for end-stage disease.

Persistent ankle pain, catching, or swelling may be signs of an osteochondral injury.

Arrange a consultation today to discuss the appropriate options for your condition.

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Complications if Left Untreated

Untreated cartilage injuries can gradually worsen, leading to long-term joint problems.

Damaged cartilage does not heal on its own. Over time, the underlying bone may experience increased stress, resulting in bone oedema, cyst formation, and potential collapse. This process accelerates joint degeneration.

As cartilage continues to deteriorate, bone-on-bone contact can occur, causing severe pain and post-traumatic arthritis. Untreated osteochondral lesions may progress to ankle arthritis over time, particularly in younger patients.

The impact on daily life may include chronic pain, reduced mobility, inability to participate in sports or recreational activities, and difficulty with work-related tasks. Patients may develop compensatory gait patterns that can lead to problems in other joints, including the knee, hip, and back.

Early intervention can help halt or slow this progression, preserving joint function and maintaining an active lifestyle. The effectiveness of treatment may decrease once arthritis develops.

Cartilage Injury (Osteochondral injury)

Frequently Asked Questions

Can cartilage injuries heal on their own without treatment?

Cartilage has a limited ability to heal because it receives very little blood supply. While small, stable lesions might not progress, cartilage injuries may require treatment to prevent worsening. Without intervention, damaged cartilage may deteriorate over time, potentially leading to arthritis. Early treatment provides the opportunity for healing and preventing long-term complications.

How long does recovery take after cartilage injury treatment?

Recovery time varies depending on the treatment type and injury severity. Non-surgical treatment may require several months of rehabilitation. Arthroscopic procedures may allow return to activities in several months, while more extensive surgeries like OATS or ACI often require longer periods for recovery. Our surgeon will provide a personalised timeline based on your specific condition and treatment plan. *Individual results and timelines may vary.*

What activities should I avoid with an ankle cartilage injury?

High-impact activities that stress the ankle joint should be modified or avoided. This includes running on hard surfaces, jumping sports, and activities involving cutting or pivoting movements. Low-impact alternatives like swimming, cycling, or elliptical training are often recommended. Our orthopaedic surgeon and physiotherapist will guide you on safe activity levels throughout your recovery.

Is surgery always necessary for osteochondral injuries?

Not all cartilage injuries require surgery. Small, stable lesions in non-weight-bearing areas may respond well to non-surgical management. Factors influencing the need for surgery include lesion size, location, stability, patient age, activity level, and response to non-surgical treatment. Our orthopaedic surgeon will recommend surgery only when necessary to help prevent progression and restore function.

Can I return to sports after treatment for a cartilage injury?

Patients may be able to return to sports following appropriate treatment and rehabilitation. The timeline and level of activity depend on injury severity, treatment type, and the demand of the sport. Some may need to modify their activities or sports participation. Our surgeon will discuss realistic expectations based on your specific situation. *Individual results and timelines may vary.*

What are the current developments in cartilage injury treatment?

Treatment options continue to advance with improvements in surgical techniques, imaging methods, and rehabilitation strategies. Biologic therapies, such as platelet-rich plasma (PRP), are being used to support healing in selected cases. These developments aim to improve treatment outcomes and recovery. Our orthopaedic surgeon can provide information on suitable options for your specific condition.

Conclusion

Cartilage injuries in the foot and ankle are complex conditions that require professional assessment and tailored treatment. Although these osteochondral injuries can affect mobility and quality of life, a range of effective treatment options is available. From non-surgical approaches such as physiotherapy and injection therapies to advanced surgical techniques, the key lies in selecting the most suitable method for your specific condition.

Early diagnosis and timely intervention can improve outcomes and help prevent the progression to arthritis. With appropriate management, many patients experience reduced pain, improved function, and a return to their regular activities. *Individual recovery timelines and results may vary.*

Take the First Step Towards Better Health

Living with ankle cartilage damage doesn’t have to hold you back. Speak with an orthopaedic surgeon about possible approaches for your ankle.

Book Your Consultation Today

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.