Ankle Fracture: How to Know If Your Ankle Is Broken, Treatment Options and Recovery

An ankle injury usually happens in a moment. The foot rolls, twists or lands awkwardly, and the force travels through the joint. Depending on the direction and severity of that force, the result may be a stretched or torn ligament, a broken bone, or both together.

Telling a fracture from a severe sprain is difficult without an examination and an X-ray, because the two produce very similar symptoms in the first hours. That matters, because some fractures that are not identified and treated appropriately may heal in an incorrect position and lead to longer-term problems with pain, walking, stability or joint function.

Many ankle fractures heal well without surgery when the bones are stable and correctly aligned. Others need surgical fixation to restore that alignment. This guide explains how the two are told apart, what the treatment options involve and what recovery realistically looks like.

Key Takeaways

• Being able to walk does not rule out a fracture. Some people with a stable ankle fracture may still be able to walk, so being able to bear weight does not completely rule out a fracture.
• Tenderness directly over specific areas of the ankle bones an increase the likelihood of a fracture and may indicate the need for an X-ray.
• A popping sound at the moment of injury does not distinguish the two. Fractures and severe sprains produce very similar symptoms in the first 48 hours.
• Not every ankle fracture needs surgery. Stable, well-aligned fractures are commonly treated with a cast or boot plus close follow-up imaging.
• Surgery may be needed to restore and maintain joint alignment and stability. Accurate alignment is particularly important in fractures that affect the ankle joint surface.
• Many ankle fractures show substantial bone healing within around six to eight weeks, although healing and functional recovery vary depending on the fracture and the individual.
• Physiotherapy may be recommended after an ankle fracture to help restore movement, strength, balance and normal walking, particularly after a period of immobilisation.

How Do You Know If Your Ankle Is Broken?

There is no reliable way to confirm a fracture at home. The following signs make one more likely and mean the ankle should be assessed:

• Significant pain after the injury, particularly when accompanied by swelling, bony tenderness or difficulty bearing weight.
• Rapid swelling and bruising, especially swelling that appears within the first hour and bruising that spreads across the foot.
• Difficulty or inability to bear weight, particularly if you are unable to take four steps both immediately after the injury and during clinical assessment.
• Tenderness directly over the ankle bones, rather than over the soft tissue just below or in front of them. Bony tenderness is one of the more useful clinical signs.
• Reduced movement, or pain that prevents you from moving the ankle up and down.
• Visible deformity, where the ankle or foot looks out of position or is angled abnormally. This needs emergency care.

Being able to walk does not rule out a fracture. Some fractures, particularly stable ones involving a single bone, still allow limited weight bearing. Some stable fractures still allow limited weight-bearing, so the ability to walk should not be used alone to rule out a fracture. If bony tenderness and significant swelling are present after a twisting injury, get it assessed even if you managed to walk home.

Ankle Fracture vs Severe Ankle Sprain: What’s the Difference?

In a fracture, one or more of the bones forming the ankle joint breaks. In a sprain, the ligaments that hold those bones together are stretched or torn while the bones themselves stay intact.

The distinction matters because bone and ligament heal differently and need different management. A severe sprain can be as painful and as swollen as a fracture, and in the first 48 hours the two often look identical.

The overlap is the point. Swelling, bruising and severe pain occur in both, and a popping sensation at the moment of injury tells you very little. This is why clinical examination and, where indicated, an X-ray are needed to confirm or exclude a fracture rather than judging by symptoms alone.

What Types of Ankle Fractures Can Occur?

The ankle joint is formed by the lower ends of two leg bones, the tibia and the fibula, sitting on top of the talus in the foot. The bony prominences you can feel on each side are called malleoli. Fractures are named by which of these structures is broken.

• Lateral malleolus fracture. A break at the lower end of the fibula, on the outer side. The most common type of ankle fracture.
• Medial malleolus fracture. A break at the lower end of the tibia, on the inner side.
• Fibula fracture. A break anywhere along the fibula. Its position relative to the joint influences stability.
• Tibia fracture. A break in the larger, weight-bearing bone. Fractures extending into the joint surface are more complex.
• Bimalleolar fracture. Both the medial and lateral malleoli are broken. Usually unstable and often requires surgery.
• Trimalleolar fracture. The medial and lateral malleoli plus the back of the tibia. A fracture involving the medial and lateral malleoli as well as the posterior part of the tibia. These injuries are often unstable and commonly require surgical assessment.

Stability and alignment

Two further descriptions determine treatment more than the name of the broken bone.

• Stable versus unstable. A stable fracture means the joint stays correctly positioned under load, typically a single break with intact supporting ligaments. An unstable fracture means the joint can shift, usually because more than one structure is damaged.
• Displaced versus non-displaced. Non-displaced means the broken ends remain in correct alignment. Displaced means the fractured bone fragments have moved out of their normal alignment and may require realignment depending on the degree of displacement and joint stability.

This is why two people with the same fracture name can be treated differently. A stable, non-displaced lateral malleolus fracture may need only a boot, while a displaced, unstable one may need surgery. Because the ankle is a weight-bearing joint with little tolerance for imperfect alignment, even small degrees of displacement can matter.

How Is an Ankle Fracture Diagnosed?

Diagnosis begins with the history and examination, which also determine whether imaging is needed at all.

• Mechanism of injury. How the ankle was loaded, whether it rolled inwards or outwards, the height of any fall and whether you could weight bear immediately afterwards.
• Physical examination. Locating tenderness precisely, assessing swelling and deformity, and testing movement and stability. Bony tenderness in specific locations combined with an inability to bear weight is what usually prompts an X-ray.
• Circulation and sensation. Checking pulses, skin colour, temperature and sensation in the foot. A displaced fracture can compromise blood supply or nerves, and this is checked before anything else.

Where imaging is indicated, Radiology and Diagnostic Imaging at Sheikh Sultan bin Zayed Hospital provides:

• X-ray. The first and usually the only imaging needed. Several views confirm the fracture, its position and whether the joint is correctly aligned.
• CT scan. Used when the fracture is complex, involves the joint surface or requires detailed surgical planning.
• MRI. May be considered in selected cases when an occult or stress fracture, ligament injury or other soft-tissue injury is suspected.

Not every ankle injury needs advanced imaging, and many need no imaging at all. Clinical assessment determines what is appropriate.

Does Every Ankle Fracture Need Surgery?

No. A significant proportion of ankle fractures are treated without surgery. Where the fracture is stable and the bones are correctly aligned, immobilisation allows the bone to heal in position.

Surgery is generally considered when:

• The fracture is displaced and the bones need to be returned to their correct position.
• The fracture is unstable, meaning the joint would shift under load.
• The break extends into the joint surface, where alignment must be precise to limit later joint damage.
• More than one bone is broken, as in bimalleolar and trimalleolar fractures.
• The fracture is open, meaning there is a wound that communicates with the fracture. This requires urgent emergency assessment and specialist treatment.
• Non-surgical treatment has been attempted and the fracture has shifted on follow-up imaging.

The goal of surgery is not the operation itself but what it achieves: restoring the normal alignment of the joint and holding it stable while the bone heals. The ankle carries the body’s full weight through a small surface area, so poor joint alignment can increase the risk of persistent symptoms and post-traumatic arthritis over time.

How Is an Ankle Fracture Treated Without Surgery?

Non-surgical treatment protects the fracture while it heals in the correct position. It typically involves:

• A cast or a walking boot. A cast provides rigid immobilisation. A removable boot offers protection while allowing controlled movement and easier hygiene, and is often used once early healing is established.
• Immobilisation. Holding the ankle still so the healing bone is not disturbed. The duration depends on the fracture and is set by your surgeon.
• Crutches and weight-bearing restrictions. You may be asked to avoid putting weight through the leg entirely, or to bear only partial weight, for a defined period. These instructions are specific to your fracture and should be followed exactly.
• Pain management. Elevation, ice in the early phase and pain relief as advised by your doctor.
• Follow-up appointments and repeat imaging. Repeat X-rays confirm the fracture has not shifted and is healing as expected.
• Physiotherapy once healing allows. Rehabilitation restores movement, strength and balance after the immobilisation period.

Non-surgical does not mean unsupervised. Follow-up assessment and imaging are important to confirm that the fracture remains appropriately aligned and is healing as expected.

What Happens During Ankle Fracture Surgery?

The standard operation is open reduction and internal fixation. Reduction means returning the bones to their correct position; fixation means holding them there while they heal.

• Realignment. The surgeon repositions the fractured bone ends into their normal anatomical alignment.
• Internal fixation. Plates and screws hold the bones in position. A plate is usually applied along the fibula, and screws may be used for the medial malleolus. The specific construct depends on the fracture pattern.
• Restoring joint stability. Where the ligaments joining the tibia and fibula are damaged, additional fixation may be needed to hold that relationship correctly.
• Post-operative immobilisation. A splint, cast or boot protects the repair in the early phase.
• Weight-bearing restrictions. These are set individually and are usually stricter early on than after non-surgical treatment.
• Rehabilitation and follow-up. Structured physiotherapy once the surgeon permits it, with review appointments and imaging to confirm healing.

Plates and screws are often left in place after the fracture has healed, although removal may be considered in selected cases if clinically indicated. Ankle fracture surgery sits within the foot and ankle subspecialty of Sheikh Sultan bin Zayed Hospital’s Orthopedics Clinic, which also manages orthopaedic trauma.

How Long Does an Ankle Fracture Take to Heal?

Bone typically takes around six to eight weeks to unite, though this varies with the fracture and the individual. That figure is often misunderstood, because bone healing and functional recovery are not the same milestone.

Union means the bone is solid enough to bear load. Functional recovery means the ankle moves, feels stable and tolerates normal activity, and that commonly takes three to six months. Return to running or sport can take longer, particularly after a complex or surgically treated fracture.

Factors that influence recovery include:

• The type, severity and displacement of the fracture.
• Whether the joint surface was involved.
• Whether treatment was surgical or non-surgical.
• Age and general health, including diabetes and circulation.
• Smoking, which can negatively affect bone healing.
• How closely weight-bearing instructions and rehabilitation are followed.

Follow-up appointments exist to confirm the bone is healing in position. Attending scheduled follow-up appointments is important so that healing and alignment can be monitored and any concerns identified early.

When Can You Walk After an Ankle Fracture?

There is no universal answer, and any timeline you find online may not apply to your fracture. Weight-bearing depends on which bones are broken, whether the fracture is stable, whether it was fixed surgically and how healing progresses on your X-rays.

The general pattern is:

• An initial protected period. Many fractures require no weight or only partial weight through the leg while early healing occurs, using crutches or a frame.
• Progression to partial weight-bearing. Introduced when your surgeon confirms the fracture is healing in position, usually in a boot that shares the load.
• Progression to full weight-bearing. Increasing load through the ankle as tolerated, still within the boot initially.
• Weaning out of the boot. Returning to normal footwear gradually, often alongside physiotherapy.
• Return to normal walking. A limp is common at first and usually resolves with strengthening and gait retraining.

Follow your own surgeon’s instructions rather than a general timeline. Weight-bearing should progress according to your treating team's instructions, as both the timing and amount of loading depend on the fracture and how it is healing. The right moment is a clinical judgement based on your imaging.

Is Physiotherapy Necessary After an Ankle Fracture?

Physiotherapy is commonly recommended, particularly after prolonged immobilisation, surgery or where stiffness, weakness, balance problems or difficulty walking persist. Several weeks of immobilisation leave the ankle stiff, the calf and foot muscles weakened, and balance impaired. Rehabilitation can help address these changes and support a safe return to normal movement and activity.

Rehabilitation addresses:

• Range of motion. Restoring upward and downward movement at the ankle, which is required for normal walking and stairs.
• Strength. Rebuilding the calf and foot muscles, which lose bulk quickly during immobilisation.
• Balance and proprioception. Retraining the ankle’s sense of position, which is commonly impaired after injury and is a significant factor in re-injury.
• Walking pattern. Correcting the limp or compensations adopted while protecting the ankle, which otherwise overload the knee, hip and back.
• Reducing stiffness and swelling. Both are common for months and respond to movement and loading.
• Return to work, exercise or sport. Progressive loading towards the specific demands you need to meet.

Gentle movement often begins during the protected phase, with structured rehabilitation starting once the surgeon confirms the fracture is stable enough. Physiotherapy and Rehabilitation at Sheikh Sultan bin Zayed Hospital is delivered in one of the comprehensive in-house physiotherapy centre in Sharjah, on the same site as the orthopaedic team.

What Happens If an Ankle Fracture Does Not Heal Properly?

Most ankle fractures heal well when diagnosed accurately, treated appropriately and followed up. Where that does not happen, recognised complications include:

• Malunion. The bone heals in the wrong position, altering how load passes through the joint.
• Nonunion. The bone fails to heal, leaving persistent pain and instability. More likely with smoking, diabetes or inadequate immobilisation.
• Persistent pain. Ongoing pain with activity or weather changes, sometimes from the fracture and sometimes from associated cartilage injury.
• Reduced movement. Lasting stiffness that limits walking on slopes, squatting and stairs.
• Ankle instability. A sense of giving way, particularly on uneven ground, raising the risk of further injury.
• Difficulty walking. An altered gait that persists and places abnormal load on other joints.
• Post-traumatic arthritis. Joint surface wear developing years later, most likely where the fracture involved the joint surface or healed out of alignment.

This is the reason accuracy matters early. Accurate diagnosis, appropriate treatment and follow-up can help reduce the risk of complications such as malunion.

When Should You Get Urgent Medical Attention for an Ankle Injury?

Seek emergency care immediately if you have any of the following:

• Visible deformity of the ankle or foot, or a foot that points in an abnormal direction.
• An open wound over the injury, or visible bone.
• Severe pain, or pain that is rapidly worsening rather than settling.
• Numbness, tingling or loss of sensation in the foot or toes.
• A foot that is pale, blue, mottled or unusually cold.
• Very significant swelling, particularly with a tight, tense feeling in the leg.
• Inability to move the foot or toes.
• A significant injury after which you cannot bear any weight at all.

A deformed ankle should not be straightened by anyone other than a clinician, and an open fracture requires urgent treatment to reduce the risk of infection. Numbness or a cold, pale foot suggests the nerve or blood supply may be compromised and is time-critical.

Questions to Ask Your Orthopaedic Specialist

• Is my ankle fractured, or is this a severe sprain?
• Which bones are broken, and is the fracture stable?
• Do I need surgery, and what would it achieve?
• How long will I need a cast or boot?
• When can I start putting weight on the ankle, and how much?
• When can I return to work, given what my job involves?
• When will it be safe for me to drive?
• When can I return to exercise or sport?
• Will I need physiotherapy, and when does it start?
• What symptoms should bring me back sooner than my next appointment?

Get Your Ankle Injury Assessed

If you have injured your ankle and cannot bear weight, have tenderness over the bone or have significant swelling, have it assessed rather than waiting to see whether it settles. Assessment involves a clinical examination and, where appropriate, imaging to confirm whether the ankle is fractured and whether it is stable. Treatment may then involve a cast or boot, surgery to restore alignment, or rehabilitation, depending on what is found.

The foot and ankle team within Sheikh Sultan bin Zayed Hospital’s Orthopaedics Clinic manages ankle fractures and orthopaedic trauma, with diagnostic imaging and physiotherapy and rehabilitation on the same site. View our orthopaedic consultants, check insurance coverage or request an appointment online. Call 800 642 to speak to the team.

Disclaimer

This article is intended for general information only and does not constitute medical advice. It is not a substitute for an individual assessment by a qualified healthcare professional. If you have injured your ankle or have concerns about your symptoms, seek medical assessment. In an emergency, attend the nearest emergency department or call the emergency services.

Medical Review

Medically reviewed by: Dr. Osama Gharsaa, Consultant, Orthopedic Surgeon, Sheikh Sultan Bin Zayed Hospital

Qualifications: Fellow of the Royal College of Physicians and Surgeons of Canada, Member of the American Academy of Orthopaedic Surgeons​