Ankle Fracture Rehab: Getting Moving After the Cast or Boot Comes Off

A cast, a boot, or a plate and screws protect a broken ankle while the bone heals. They also leave it stiff, swollen and weak. This guide explains the stages of rehab once that protection phase ends, what is normal, and when walking, stairs, driving, work and sport return.

Your surgeon or physician sets the weight-bearing rules

Weight-bearing means putting your body weight through the injured foot. The amount allowed changes over time: no weight, then toes touching the floor, then part of your weight, then all of it. The NHS page on a broken ankle says your doctor tells you how much weight to put on the ankle.

The fracture pattern, whether you had surgery, how firmly the bone was held, your bone quality and any ligament injury all affect the rules. A break can come with a torn ligament between the two lower leg bones, the injury described in our guide to a high ankle sprain.

Earlier loading carries trade-offs. A 2014 review in the Journal of Orthopaedic and Sports Physical Therapy pooled 14 trials with 705 participants. It found that deep infection, screws or plates that failed to hold the bone, and a second operation to remove them were more common after early ankle movement than after immobilization. The authors rated the trials as poor quality. The review shows why the timing belongs to the surgeon who saw your X-rays.

Write down the rules at each visit: how much weight you may use, whether the boot may come off for exercises, which movements to avoid and when the next X-ray is planned. Your physiotherapist works inside those answers.

Stiffness, swelling and weakness are expected after the cast

The 2024 Cochrane review (see below) notes that immobilizing an ankle protects the fracture while it heals and also increases the risk of weakness, stiffness and lasting pain. Expect all three when the cast or boot comes off.

A 2013 study by Hong and colleagues followed 47 people who had surgery for a break involving two or three parts of the ankle. At 1 year, 26 of them (55.3%) had pain, 29 (61.7%) had stiffness and 21 (44.7%) had swelling. This was a review of past records with a small group, so treat the percentages as one example. These symptoms can outlast the cast by months.

A 2014 review of 31 studies by Beckenkamp and colleagues tracked physical function on a 100-point scale. Adults scored 31.9 at 1 month, 78.3 at 6 months and 86.6 at 24 months. Recovery was quick at first and had not fully finished at 2 years.

Swelling usually grows through the day and settles overnight. Raising the leg above the level of the heart for periods in the day helps. Swelling in one calf with pain or warmth needs a doctor, as the warning signs section below explains.

Fear of the ankle is common too. After weeks of protecting a painful joint, loading it feels risky. Rehab answers with small steps you can measure.

Earlier movement and loading give small gains in the first months

The best evidence comes from a 2024 Cochrane review by Lewis and colleagues. It included 53 studies with 4,489 adults. Across 12 studies with 1,403 participants, weight-bearing within 3 weeks of surgery probably led to better ankle function than later weight-bearing, by 3.56 points. The reviewers judged this too small to be clinically meaningful (large enough to matter to patients). Re-operation rates showed little or no difference. After surgery, a removable ankle support may give better function than a fixed one, by 6.39 points, from low-certainty evidence.

A 2026 meta-analysis by Egu and colleagues combined 5 trials with 1,030 patients. Early weight-bearing, started within 3 weeks, gave better ankle scores at 6 weeks and at 3 months, a shorter time to return to work and similar complication rates. Several trials excluded people with a body mass index above 30, a break on three sides of the ankle or a ligament injury, and many patients were younger than 65.

The EMADE trial tested movement and home exercise after surgery on the outer ankle bone. A total of 157 adults were placed by chance in either a light cast or a program of progressive home exercises with weekly advice. Both groups stayed off the foot until 6 weeks. At 12 weeks the exercise group scored 62.0 on an ankle function questionnaire and the cast group 48.8, a difference of 13.2 points. The gap remained at 24 weeks and the groups matched at 52 weeks. The trial reported no injury from the exercises, including no loosening of the joint.

The Cochrane review could not say which physiotherapy program is best. Nine studies with 857 participants tested different exercise approaches, and the evidence was of very low certainty. A physiotherapist therefore builds your program from your own measurements and your surgeon's limits.

Rehab moves through four stages

Every fracture has its own plan. This is a common order, and your physiotherapist sets the pace.

1. Protect and settle: you follow the weight-bearing rules, control swelling and keep the toes, knee and hip moving.
2. Restore movement: you regain how far the ankle bends up toward the shin and points down. Bending up matters most for stairs and a normal walking step.
3. Load and walk: once cleared, you move from crutches or a boot to normal walking, and you rebuild calf and foot strength, first sitting and then standing.
4. Balance, power and sport: you train single-leg balance, step-ups, hopping and changes of direction. Our guide to ankle balance retraining describes similar drills for sprains.

You move to the next stage when the last one is settled and the ankle tolerates the load the next day. Our article on rehab after ankle ligament surgery shows a stage-by-stage plan after an operation.

Walking, stairs, driving, work and sport return in steps

Walking without crutches comes first, and a limp-free stride follows as calf strength and ankle bend return. Stairs usually follow, going up before going down. Readiness shows in how the ankle feels the next morning and in an even stride.

Driving is your surgeon's or physician's decision. A 2018 study by Ho and colleagues tested 23 adults aged 25 to 65 after surgery on the right ankle. At 6 weeks, 91% passed an on-road driving test, before they had started weight-bearing, and all had driven safely at a check at least 6 months later. A 2015 simulator study of 12 drivers found no statistical difference in braking force or reaction time between the injured and uninjured leg after the plaster came off, and its authors still left the advice to the doctor. A left-foot injury or an automatic car changes the question, and an insurer may set its own conditions.

The return to work depends on your job, your weight-bearing limits and your pain. Egu's meta-analysis found a shorter return to work with early weight-bearing in lower-risk patients. A desk job where you can raise the leg usually returns before a job on ladders or long shifts on your feet. Ask your surgeon for a written note with limits, and plan gradual hours with your physiotherapist.

For sport, Robertson and Wood followed 96 sport-related ankle fractures in Scotland. The average return to sport was 26 weeks, with a range from 4 to 104 weeks, and 94% returned. After a mean follow-up of 36 months, 42% still had symptoms. Fractures treated without surgery returned in 20 weeks on average and those treated with surgery in 35 weeks, and the surgical group had more severe injuries. In Hong's study, 9 of 33 people who played sport before the injury (27.3%) returned to their previous level with no difficulties. These numbers support a plan with checkpoints and no fixed date. Uneven ground on North Shore trails is usually one of the last tests.

Warning signs need a doctor the same day

A blood clot in a leg vein is the most serious risk during and after the protection phase. A 2022 Ontario study by Grewal and colleagues followed 86,081 people sent home from an emergency department with an ankle fracture that needed a cast or boot. A clot formed within 90 days in 1.3% of them, and their risk was 5.7 to 6.3 times higher than in matched people with finger wounds or wrist fractures.

Call your doctor the same day for any of these:

• swelling, warmth, redness or tenderness in the leg, including one swollen and painful calf, and leg pain that gets worse when you stand or walk, which HealthLinkBC lists as signs of a clot in the leg
• a hot, red, swollen ankle, increasing pain, pus from the wound or a fever, which are signs of infection after surgery

The NHS also advises urgent help when pain gets worse, when the foot or toes feel numb or burning, or when a cast is tight and the toes turn blue or white.

Call 911 or go to the Lions Gate Hospital emergency department for chest pain, sudden shortness of breath, coughing up blood or fainting, which HealthLinkBC lists as symptoms of a clot in the lung. Go to emergency as well after a new fall onto the ankle or a sudden loss of ability to put weight on the leg.

How physiotherapy fits and how to book

A physiotherapist measures how far the ankle moves, how much it swells, how strong the calf and foot muscles are, and how you walk and balance. The first assessment ends with a plan built on your surgeon's limits and your goals, such as stairs at home, a shift at work or a trail run. Our fracture rehabilitation page and physiotherapy service page describe the clinic's approach.

You do not need a referral to book physiotherapy in British Columbia. The clinic is at 1325 Marine Drive, North Vancouver, BC V7P 3E5. You can book at medstar.janeapp.com or call (604) 988-5411. Physiotherapists in BC are licensed by the College of Health and Care Professionals of BC, and you can check any name in its public registry.

Bring your surgeon's weight-bearing instructions, the operation note if you had surgery, and any X-ray reports, so the physiotherapist can plan around the real limits from the first visit.

This article is general information, not personal medical advice, and is not a substitute for assessment by a regulated practitioner. A regulated practitioner can confirm whether the patterns described apply to you.

Sources

• Lewis SR, et al. Rehabilitation for ankle fractures in adults. Cochrane Database Syst Rev, 2024
• Matthews PA, et al. Early Motion and Directed Exercise (EMADE) following ankle fracture fixation: a pragmatic randomized controlled trial. Bone Joint J, 2024
• Egu C, et al. Early vs Late Weight Bearing After Ankle Fracture Fixation: A Meta-analysis of Randomized Controlled Trials. Foot Ankle Int, 2026
• Keene DJ, et al. Early ankle movement versus immobilization in the postoperative management of ankle fracture in adults: a systematic review and meta-analysis. J Orthop Sports Phys Ther, 2014
• Beckenkamp PR, et al. Prognosis of physical function following ankle fracture: a systematic review with meta-analysis. J Orthop Sports Phys Ther, 2014
• Hong CC, et al. Functional outcome and limitation of sporting activities after bimalleolar and trimalleolar ankle fractures. Foot Ankle Int, 2013
• Robertson GAJ, Wood AM. Epidemiology, management, and outcome of sport-related ankle fractures in a standard UK population. Foot Ankle Int, 2014
• Ho SWL, et al. Return to car driving is safe 6 weeks after operative treatment of right ankle fractures. Arch Orthop Trauma Surg, 2018
• Yousri T, Jackson M. Ankle fractures: When can I drive, doctor? A simulation study. Injury, 2015
• Grewal K, et al. Venous Thromboembolism in Patients Discharged From the Emergency Department With Ankle Fractures. Ann Emerg Med, 2022
• HealthLinkBC: Deep Vein Thrombosis
• HealthLinkBC: Pulmonary Embolism
• HealthLinkBC: Post-Operative Problems
• NHS: Broken ankle
• College of Health and Care Professionals of BC: public registry

This article is for general information only and does not constitute medical advice, diagnosis, or treatment. Individual presentations vary, and assessment findings and treatment plans differ from person to person. If you are experiencing severe symptoms, neurological changes (numbness, weakness, bowel or bladder changes), or a significant trauma, contact your physician or emergency services. Care at Medstar Sport Physio & Health is provided by practitioners registered with their respective British Columbia regulatory colleges.