Ankle pain is not always caused by a new sprain or obvious injury. Sometimes discomfort develops gradually and becomes particularly noticeable when the ankle reaches the end of its available movement.
Pain at the front of the ankle during a deep squat, for example, or discomfort at the back of the ankle when pointing the toes can sometimes be associated with ankle impingement.
Ankle impingement describes a group of conditions in which soft tissue or bony structures become compressed around the ankle joint during particular movements. It can occur after previous injuries, repeated loading or changes within the joint and is seen relatively often in active people and athletes.
What Is Ankle Impingement?
Rather than representing one single injury, ankle impingement includes several different conditions classified according to where the compression occurs.
Two of the better-known forms are:
- Anterior ankle impingement, involving structures at the front of the ankle
- Posterior ankle impingement, involving structures at the back of the ankle
There are also anterolateral, anteromedial and other less common forms.
Symptoms depend on which structures are involved and which movements reproduce the compression.
Anterior Ankle Impingement
Anterior ankle impingement typically causes discomfort at the front of the ankle, particularly during movements involving significant dorsiflexion — when the knee moves forward over the foot.
This may become noticeable during activities such as:
- Deep squatting
- Running uphill
- Walking uphill
- Climbing stairs
- Lunging
- Landing
- Sports requiring repeated ankle flexion
Some people also experience stiffness or a feeling that the ankle simply will not move any farther.
Anterior impingement can involve bone, soft tissue or a combination of both. Previous ankle injuries and repeated loading have both been associated with the condition.
Posterior Ankle Impingement
Posterior impingement occurs at the back of the ankle and is more commonly aggravated when the foot is repeatedly pointed downward into plantar flexion.
It has traditionally been associated with activities such as ballet, where dancers repeatedly work in extreme plantar-flexed positions, although it can also affect runners and participants in other sports.
Symptoms may occur during:
- Pushing off while running
- Pointing the toes
- Jumping
- Repeated kicking
- Walking or running downhill
- Activities requiring repeated plantar flexion
Because several structures are located around the back of the ankle, posterior ankle pain can sometimes resemble tendon or other soft-tissue problems.
Why Does Ankle Impingement Develop?
There is no single cause.
In some people, symptoms may develop after an ankle sprain or other trauma. Scar tissue or ongoing irritation around the joint can contribute to soft-tissue impingement.
In other cases, repetitive loading over time may contribute to changes around the joint.
Bony growths known as osteophytes can also develop around the front of the ankle. However, ankle impingement is not simply a matter of having a visible bone spur. Clinical assessment is important because structural findings need to be considered alongside the person’s symptoms and physical examination.
How Is Ankle Impingement Assessed?
Assessment usually begins with understanding when the pain occurs.
The location of symptoms and the movements that reproduce them can provide important information. A clinician may also examine:
- Ankle range of motion
- Areas of tenderness
- Joint mobility
- Strength
- Balance
- Previous ankle injuries
- Ankle stability
- Walking or running mechanics where relevant
Clinical tests may then reproduce the movement associated with the suspected impingement.
Because several conditions can produce similar ankle symptoms, assessment also helps determine whether another structure may be responsible.
Is Imaging Always Necessary?
Not necessarily.
The diagnosis of ankle impingement is often based largely on clinical assessment, although imaging can help identify the structures involved or investigate persistent symptoms.
X-rays may reveal bony changes, while MRI can provide additional information about soft tissue, cartilage, inflammation and associated injuries.
CT and ultrasound can also be useful in particular circumstances.
A detailed review of ankle impingement diagnosis and management discusses the role of clinical examination alongside X-ray, MRI, CT and ultrasound when investigating different forms of ankle impingement.
Treatment Does Not Always Mean Surgery
The term “impingement” can sound as though something physically needs to be removed, but conservative management is generally considered first.
Treatment depends on the type of impingement, severity of symptoms, physical demands and findings from the assessment.
Rehabilitation may include modifying aggravating activity temporarily and progressively rebuilding ankle function.
The evidence base for individual conservative interventions remains limited, so treatment should be individualized rather than assuming that the same protocol will work for every person.
Restoring Ankle Mobility
Restricted ankle mobility may be part of the presentation, especially with anterior ankle symptoms.
Mobility exercises may therefore be incorporated where appropriate, although the aim is not simply to repeatedly force the ankle into the painful position.
Rehabilitation should instead consider why movement is limited and how much mobility is required for the person’s normal activities.
A recreational walker, runner and competitive athlete may each have different functional requirements.
Strength and Stability
Ankle rehabilitation frequently involves strengthening the muscles surrounding the ankle and lower leg.
Exercises may include:
- Calf raises
- Resistance exercises
- Single-leg strengthening
- Squats and lunges
- Step exercises
- Progressive loading drills
Previous ankle sprains or instability may also influence how the ankle is functioning.
For this reason, rehabilitation can include balance and proprioceptive exercises designed to improve control of the ankle during movement.
Manual Therapy as Part of a Wider Programme
Hands-on treatment may also form part of conservative care when clinically appropriate.
Manual therapy can include techniques such as joint mobilizations, soft-tissue techniques and stretching. The purpose and type of treatment depend on the individual’s examination findings.
Manual therapy is generally most useful as one element of a broader rehabilitation programme rather than being viewed as a standalone solution.
Active rehabilitation remains important because everyday life and sport require the ankle to tolerate load and control movement independently.
Modifying Activity Without Becoming Inactive
Ankle impingement does not necessarily mean completely avoiding activity.
Instead, temporary modification of the particular movement or activity provoking symptoms may allow rehabilitation to progress while maintaining overall physical activity.
For example, someone who experiences symptoms during deep squatting may temporarily reduce squat depth while working on ankle strength, mobility and movement control.
A runner may temporarily adjust training volume, terrain or intensity.
The goal is generally a progressive return to normal activity rather than indefinite avoidance.
When Conservative Treatment Is Not Enough
Some ankle impingement cases are associated with significant structural changes that continue to cause symptoms despite appropriate conservative management.
In these situations, further medical assessment may be appropriate.
Surgical treatment can be considered when persistent symptoms interfere with everyday activities or athletic performance and clinical examination and imaging identify a structure responsible for the impingement.
Arthroscopic procedures may be used in selected cases to remove symptomatic bone or soft tissue.
However, surgery is not automatically required simply because imaging shows a structural abnormality.
When Should Persistent Ankle Pain Be Assessed?
Professional assessment may be worthwhile if:
- Ankle pain continues despite reducing aggravating activity
- Pain repeatedly occurs at the same point in ankle movement
- Ankle mobility remains noticeably restricted
- Previous ankle injuries continue to affect movement
- Running or sport consistently reproduces symptoms
- The ankle feels unstable
- Symptoms are getting worse rather than improving
Assessment can help identify whether ankle impingement is likely and whether further investigation is appropriate.
For people looking for ankle impingement treatment in Vancouver, Northwest Rehab Group provides individualized assessment and rehabilitation from its multidisciplinary clinic in Mount Pleasant.
Treatment may combine active rehabilitation with manual therapy such as mobilizations, stretching and soft-tissue techniques, alongside other modalities when clinically appropriate. The specific approach should depend on the individual’s symptoms, examination findings and functional goals rather than relying on one treatment technique.
Getting Back to Normal Movement
The practical goal of ankle rehabilitation is not simply to change what the ankle looks like on an image.
It is to help restore comfortable, useful movement.
For one person, that may mean being able to squat comfortably again. For another, it may mean returning to running, hiking, football, dance or another activity that repeatedly places the ankle near the end of its range.
Understanding which movement causes the symptoms, addressing relevant strength and mobility limitations and gradually rebuilding tolerance can provide a structured path back toward those activities.