You have sprained your ankle before, and now it seems to roll again on an ordinary sidewalk, a basketball court, or an uneven hiking trail. Sometimes there is another painful twist. Other times the ankle simply feels unreliable, as though it might buckle without warning.
An ankle that repeatedly gives way deserves more than another round of rest. Previous ligament injury can leave problems with strength, balance, movement control, or mechanical support. Clinicians call a persistent pattern of recurrent giving-way episodes or repeat sprains chronic ankle instability.
Fortunately, many people can improve their stability with a structured rehabilitation program. Others need a closer look for an overlooked injury or persistent ligament laxity. The right plan starts by finding out why the ankle feels unstable.
Why does my ankle keep rolling?
The most common ankle sprain occurs when the foot turns inward and stretches or tears ligaments on the outside of the ankle. Two important ligaments are the anterior talofibular ligament (ATFL) and calcaneofibular ligament (CFL). These ligaments help restrain excessive movement, but they are not the only structures that keep you upright.
Your ankle also relies on feedback from nerves and joints, timely muscle responses, adequate range of motion, and coordination across the entire leg. After a sprain, these systems may not fully recover even when pain and swelling fade.
The American Academy of Orthopaedic Surgeons (AAOS) notes that incomplete rehabilitation, an early return to activity, and repeated injuries can contribute to lasting ankle problems.
There are two overlapping ways instability can show up:
- A feeling of giving way: Your ankle feels uncertain during walking, cutting, stairs, or uneven ground, even when a ligament is not obviously loose on examination.
- Mechanical instability: Injured ligaments may no longer restrain abnormal ankle motion adequately.
Both patterns can occur together. Neither can be established by symptoms alone.
Signs of chronic ankle instability
You might notice that:
- The same ankle has rolled or sprained several times.
- You hesitate on trails, grass, or uneven surfaces.
- Quick changes in direction feel unsafe.
- Your balance on the injured leg seems worse.
- Swelling or aching recurs after activity.
- You use a brace regularly because you do not trust the ankle.
The International Ankle Consortium identifies recurrent giving way, repeat sprains, and a persistent feeling of instability as central features of this condition. A single new painful twist, however, needs an acute injury assessment rather than an automatic chronic-instability label.
Could something else be causing the problem?
Repeated ankle symptoms are not always just loose outer ligaments. Your clinician may consider a new or old fracture, an injury to the tendons on the outside of the ankle, cartilage damage in the ankle joint, a high ankle sprain, joint stiffness, arthritis, or a problem with foot alignment.
Pain high above the ankle, catching or locking inside the joint, or tenderness along a tendon may change the evaluation. If the ankle keeps giving way despite a completed rehabilitation program, it is especially important not to assume you simply need more of the same exercises.
Seek urgent or emergency evaluation after a new injury if the ankle is visibly deformed, an open wound is present, your foot becomes cold or pale, you have persistent new numbness or weakness, or you cannot bear weight after a significant injury. A hot, increasingly red and painful joint with fever also needs urgent assessment. A routine therapy appointment is not the right response to those warning signs.
How is a repeatedly sprained ankle evaluated?
An orthopedic or physical therapy assessment begins with your story. Bring up how often the ankle has rolled, when the first sprain occurred, whether swelling persists, and what you have tried. Describe the activities that make you hesitate, whether that is working on your feet, carrying a child, playing sports, or walking downhill.
An examination may include:
- Checking ankle and foot alignment, swelling, and tender areas.
- Measuring ankle motion, including how far the knee travels over the toes with the heel down.
- Assessing strength around the ankle, calf, hip, and leg.
- Testing balance and controlled single-leg movements when safe.
- Evaluating ligament stability and screening nearby tendons or the joint itself.
X-rays can help when there is concern for a fracture, arthritis, or a bony problem. MRI is not automatically required for everyone with recurrent sprains; it may be useful when symptoms, examination, or response to treatment suggest cartilage, tendon, ligament, or other internal injury.
What actually helps restore ankle stability?
Progressive exercise and movement retraining are the foundation of rehabilitation for chronic ankle instability. The 2021 clinical practice guideline from the Academy of Orthopaedic Physical Therapy recommends proprioceptive and neuromuscular therapeutic exercise to improve functional stability. See the full guideline.
A personalized plan often progresses through several connected goals.
1. Restore useful motion
An ankle that does not bend upward comfortably can change how you squat, step down, run, and land. Your therapist may work on appropriate joint mobility, calf flexibility, and movement mechanics. For selected people with chronic ankle instability, manual therapy can offer short-term improvements in ankle movement and dynamic balance when combined with active rehabilitation.
2. Rebuild strength
Exercises may target the muscles that move the ankle outward, inward, upward, and downward, as well as the calf and hip muscles that help control the leg. Resistance and difficulty should build gradually. A more complicated exercise is not necessarily a better one if your form or symptoms deteriorate.
3. Retrain balance and reactions
Single-leg stance, reaching tasks, step-downs, and progressively more demanding balance work can help retrain control. The goal is not merely to stand still for a certain number of seconds. It is to improve how your body responds to real-world movement.
4. Return to your actual activity
A person hoping to walk a Hawaiʻi trail needs different late-stage preparation from someone returning to volleyball, tennis, or a job with ladders. Later rehabilitation may include walking over variable surfaces, hopping, landing, cutting, or sport-specific drills when appropriate.
The 2021 guideline supports progressive therapeutic exercise rather than relying only on passive treatments. Your clinician or therapist should also define what would count as meaningful improvement: fewer giving-way episodes, safer movement, better functional testing, and confidence in daily life.
Should I wear an ankle brace?
An ankle brace or taping can provide support during selected activities, especially while you rebuild capacity or return to higher-risk sports. But a brace is not a substitute for balance, strength, and movement retraining.
The 2021 guideline specifically advises against using external support as a stand-alone treatment to improve postural stability in people with chronic ankle instability. Whether to use support, which type, and for how long should be based on your injury pattern and activities.
Avoid using a brace to push through a fresh injury that has not been evaluated.
How long will rehabilitation take?
There is no reliable one-size-fits-all timetable. Someone with an uncomplicated previous sprain and modest balance deficits may progress differently from someone with several severe sprains, a cartilage injury, or years of giving-way episodes.
Improvement is usually monitored through symptoms, strength, balance, functional tasks, and the absence of repeat instability, not just how many weeks have passed. Ask what exercises to do between visits, what symptoms mean you should adjust, and when the program should be reassessed if progress stalls.
A practical rule is to increase activity only as your ankle tolerates it and your movement control improves. Feeling less pain is encouraging, but it does not by itself prove you are ready for cutting sports or uneven terrain.
When is surgery considered?
Most ankle sprains, including many cases of chronic instability, are initially managed without surgery. An operation may be considered when the ankle remains mechanically unstable or repeatedly gives way despite an adequate, individualized course of rehabilitation and other appropriate treatment.
Depending on the findings, surgery can involve repairing or reconstructing damaged ligaments. Additional treatment may be necessary if imaging and examination reveal a cartilage lesion, tendon injury, or another important problem. Surgery has potential risks, including infection, nerve irritation, stiffness, blood clots, continued symptoms, and complications of healing.
AAOS explains that surgery for ankle sprains is generally reserved for persistent instability and pain after nonsurgical management or specific associated injuries. Read the AAOS ankle sprain overview.
An operation does not eliminate the need for rehabilitation. Your care team should explain the expected restrictions and recovery plan before you make a decision.
How can you prevent the next sprain?
For many people, prevention is not a single product or exercise. It is a combination of consistently rebuilding strength, practicing balance, gradually returning to more demanding activity, and making sensible footwear and surface choices.
If you have not completed a structured program after your prior sprain, that can be an important place to begin. Pacific Bone & Joint offers in-house physical therapy on Oʻahu with coordinated orthopedic evaluation when needed.
Next steps for a repeatedly unstable ankle in Hawaiʻi
If your ankle keeps rolling, repeatedly swells, or feels unsafe despite previous treatment, request an orthopedic or physical therapy evaluation at Pacific Bone & Joint. Tell the team when the original injury happened, how frequently the ankle gives way, and which activities you want to return to. Bring prior imaging and a list of braces or treatments already tried.
The aim is to identify treatable deficits, rule out a more serious injury, and build a plan that helps you move with greater confidence. A new severe injury or emergency warning sign should be assessed urgently rather than waiting for a routine visit.
Sources and Further Reading
- AAOS OrthoInfo: Sprained Ankle.
- Martin RL et al. Ankle Stability and Movement Coordination Impairments: Lateral Ankle Ligament Sprains Revision 2021. JOSPT clinical practice guideline.
- Academy of Orthopaedic Physical Therapy: Full 2021 guideline (PDF).
- International Ankle Consortium: Selection Criteria for Patients With Chronic Ankle Instability.
This is general patient education, not a diagnosis or individualized rehabilitation program. An examination may be necessary to identify fractures, tendon injuries, or other causes of persistent ankle symptoms.
