Grade 3 Ankle Sprain Recovery: When the Ligament Tears Completely
Three to six months to full sport. Most heal without surgery, and the rehab decides whether the ankle stays stable afterwards.
A grade 3 ankle sprain, meaning a complete tear of the ligament on the outside of the ankle, usually takes 3 to 6 months to recover fully: off crutches in 1 to 3 weeks, back to normal daily activity in 8 to 12 weeks, and back to running and cutting sports at 3 to 6 months. Most heal without surgery, as long as the ankle is protected for the first few weeks and then deliberately rebuilt, because the pain settles long before the ligament and your balance are back.
If you have been told your sprain is grade 3, or you felt a pop, watched the outer ankle balloon within the hour, and could not walk on it, this guide is for you. The podiatrists at ASG Foot & Ankle explain what a complete tear actually is, how it is diagnosed, what recovery looks like week by week, and the specific situations where a torn ankle ligament needs a repair rather than more time. For the broader picture across all three grades, see our ankle sprain recovery timeline.
Medically reviewed by Dr. Timothy Horak and Julia Shauger, board-certified podiatric specialists serving Homewood, South Chicago Heights & Mokena. Last reviewed September 2026.
The short answer
Off crutches: 1 to 3 weeks. Walking in a shoe with a brace: 3 to 6 weeks. Normal daily activity: 8 to 12 weeks. Jogging: around 6 to 10 weeks. Cutting and jumping sports: 3 to 6 months. The ligament keeps maturing for 6 to 12 months. Most grade 3 tears need no surgery. For comparison, a grade 2 (partial tear) takes 3 to 8 weeks to get back to daily activity and 6 to 12 weeks to get back to sport.
Get It Seen Promptly If
A complete ligament tear is painful and dramatic, but these features suggest something more than a sprain, or a complication, and mean it should be examined rather than waited out:
- •You could not take four steps right after the injury and still cannot, or there is bone tenderness at the back edge or tip of either ankle knob, the base of the fifth metatarsal on the outer foot, or the navicular on the inner arch
- •Visible deformity, or a foot that sits out of line with the leg
- •Numbness, tingling, or a foot that is pale or cold
- •Pain above the ankle between the two leg bones, or pain toward the knee, which points to a high ankle sprain or a fibula fracture rather than an outer ankle sprain
- •Pain and swelling behind the outer ankle knob, or a snapping sensation there, suggesting a peroneal tendon injury
- •Calf pain, warmth, or tightness in the weeks after the injury, especially while in a boot, which needs same-day assessment for a blood clot
- •You have diabetes or neuropathy, where pain is not a reliable guide to severity
What "Grade 3" Actually Means
Three ligaments hold the outer side of the ankle together, and they fail in a predictable order when the foot rolls inward with the toes pointed down. Knowing which ones tore explains most of the difference between a short and a long recovery.
ATFL
Anterior talofibular ligament
Runs forward from the tip of the fibula to the ankle bone. The weakest of the three and tight when the toes point down, so it is the first to tear. It stops the ankle bone sliding forward. A complete ATFL tear is the classic grade 3.
CFL
Calcaneofibular ligament
Runs down from the fibula tip to the heel bone, beneath the peroneal tendons. It tears in the more forceful sprains, after the ATFL has gone, and stops the ankle tilting inward. A CFL tear adds time to the recovery.
PTFL
Posterior talofibular ligament
The strongest of the three, at the back of the ankle. It rarely tears in an ordinary sprain. When it does, the injury is usually a dislocation or fracture and is managed as one.
Grading describes how badly the ligament is damaged. Grade 1 is a stretch with microscopic tearing. Grade 2 is a partial tear: the ligament is still continuous but weakened. Grade 3 is a complete tear, where the ligament is in two pieces. You will see the term used two ways: some clinicians call any complete ATFL tear grade 3, and others reserve it for an ankle where both the ATFL and the CFL have torn. Either way, the practical meaning is the same. The ankle is mechanically unstable until the tear heals.
That instability is what the two office tests measure. In the anterior drawer test, the heel is drawn forward while the shin is held steady; a torn ATFL lets the ankle bone slide forward further than on the other side, with a soft or absent end point, and sometimes a small dimple appears in the skin at the front of the outer ankle. In the talar tilt test, the heel is tipped inward; extra tilt points to the CFL. Both are compared against the uninjured ankle, because normal laxity varies a lot from person to person.
Grade 2 vs Grade 3 Ankle Sprain
A grade 2 ligament tear and a grade 3 are often lumped together as "a bad sprain," but they recover on different schedules. The grades are a spectrum, and a severe grade 2 can behave much like a mild grade 3.
| Feature | Grade 2 (partial tear) | Grade 3 (complete tear) |
|---|---|---|
| What is torn | Some ATFL fibers; the ligament is still continuous | The whole ATFL, often the CFL as well |
| How it felt | A painful roll; able to limp on it | Often a pop, rapid swelling, hard to walk at first |
| Bruising | Mild to moderate, around the outer ankle | Extensive, spreading into the foot and toes over 2 to 3 days |
| Anterior drawer test | Slightly looser than the other side, firm end point | Clearly looser, soft or absent end point |
| First-line support | Lace-up brace, early walking | Walking boot or rigid brace for 1 to 3 weeks, then lace-up brace |
| Normal daily activity | 3 to 8 weeks | 8 to 12 weeks |
| Return to sport | 6 to 12 weeks | 3 to 6 months |
| Surgery | Rarely | Occasionally, mostly for instability that persists after rehab |
How a Complete Tear Is Diagnosed
A grade 3 sprain is mostly a clinical diagnosis, made with the hands rather than a scanner. Imaging has a specific job at each step, and it is not always needed.
1. Rule out a fracture
The Ottawa ankle rules decide who needs an X-ray: being unable to take four steps both right after the injury and at the exam, or bone tenderness at the back edge or tip of either ankle knob, the base of the fifth metatarsal, or the navicular. They are very good at ruling a fracture out. When X-rays are taken, the podiatrist is also looking for injuries that mimic or accompany a severe sprain: a flake of bone pulled off the fibula tip, a fracture at the base of the fifth metatarsal, or small fractures of the ankle bone or heel bone that are easy to miss.
2. Grade it once the swelling settles
The most accurate exam happens at 4 to 5 days, not on the day of injury. When tenderness over the ATFL, bruising around the outer ankle, and a positive anterior drawer test are all present at that point, a complete tear is very likely. When there is no tenderness over the ATFL, a complete tear is unlikely. On day one, swelling and muscle guarding can hide the looseness the test looks for, so an early label of "grade 2" or "grade unknown" is not the final word. The first few days of treatment are the same either way; what matters is that someone re-examines it once the swelling starts to settle, because that exam sets the length of the recovery.
3. Image when the answer would change the plan
MRI or ultrasound is used when recovery stalls at 6 to 8 weeks, when a cartilage injury, peroneal tendon tear, or high ankle sprain is suspected, or before surgery. Stress X-rays, taken while the ankle is gently pushed forward or tilted, measure instability, mostly in ankles that keep giving way months later. For a straightforward first-time grade 3 sprain, an early MRI usually confirms what the exam already showed and does not change the treatment.
Grade 3 Recovery Week by Week
The Injury and the First Decisions
- Often a pop or tearing sensation on the outer ankle, then rapid swelling, sometimes an egg-shaped lump within the hour
- Bruising spreads over 24 to 72 hours and often tracks into the foot and toes, which looks alarming but is expected
- An X-ray is needed if the Ottawa ankle rules are positive: you cannot take four steps, or specific bones are tender
- Protect it in a walking boot or rigid brace, use crutches as needed, and keep the ankle elevated above heart level
The Exam That Settles the Grade
- Once swelling and guarding ease, the anterior drawer test is far more reliable than it was on day one
- Partial weight bearing in the boot or brace as pain allows; weight is encouraged, not avoided
- Gentle up-and-down ankle movement out of the boot a few times a day, but no rolling the foot inward
- Toe curls, knee and hip exercises, and keeping the rest of the body moving
Protected Healing
- New collagen is bridging the tear, but it is weak and disorganized, so the boot or rigid brace stays on for walking
- Crutches are usually weaned in this window as walking in the boot becomes comfortable
- Stationary cycling and gentle range of motion help with swelling and stiffness
- Swelling that is worse by evening is normal and will be for weeks
Out of the Boot, Into a Brace
- Transition to a lace-up or stirrup brace in a supportive shoe, with a normal heel-to-toe walk as the goal
- Resistance band work for the peroneal muscles on the outer leg, the muscles that back up the torn ligament
- Double-leg, then single-leg heel raises, and single-leg balance on a firm floor
- A limp that persists past week 6 is worth reporting, not pushing through
Strength, Balance, and Running
- Balance work progresses to eyes closed, then to a cushion or balance pad, then to catching and reaching
- Straight-line jogging usually returns around weeks 6 to 10, once hopping on the injured leg is pain free
- Most people are back to normal daily activity, including longer walks and uneven ground, by week 8 to 12
- This is the window where rehab most often gets abandoned, because it has stopped hurting
Cutting, Jumping, and Sport
- Agility drills, side-to-side movement, and sport-specific training build toward full return
- Most return to cutting and pivoting sport between 3 and 6 months, in a lace-up brace or tape
- Evening swelling and mild stiffness can linger and usually fade
- An ankle still giving way at this point, despite completed rehab, needs assessment for chronic instability
The Ligament Keeps Maturing
- Scar tissue in the ligament continues remodeling and gaining strength for up to a year
- A brace or tape for sport through at least the first season back lowers the chance of a repeat sprain
- Most ankles feel normal by now; some people notice mild stiffness or an ache after a long day
- Deep aching, catching, or locking inside the joint suggests a cartilage injury and deserves imaging
Walking, Driving, Work, and Sport
Typical ranges for a first-time grade 3 sprain treated without surgery. The right column matters more than the middle one: each step comes when the ankle can do the job, not when the calendar says so.
| Activity | Typical timing | What decides it |
|---|---|---|
| Weight bearing in a boot or rigid brace | Days 1 to 7 | Pain; crutches for balance at first |
| Walking without crutches | 1 to 3 weeks | Walking in the boot without a significant limp |
| Walking in a shoe with a lace-up brace | 3 to 6 weeks | Swelling under control, comfortable heel-to-toe walking |
| Desk work | 3 days to 2 weeks | Being able to keep the foot elevated |
| Standing or walking job | 4 to 8 weeks | Tolerating a full shift in the brace |
| Heavy work, ladders, uneven ground | 8 to 12 weeks | Balance and strength close to the other side |
| Driving (right ankle) | 3 to 6 weeks | Out of the boot, braking hard without pain or hesitation |
| Straight-line jogging | 6 to 10 weeks | Pain-free single-leg hopping |
| Cutting, jumping, pivoting sports | 3 to 6 months | Hop and agility tests close to the other side, brace on |
| Ligament near its final strength | 6 to 12 months | Time; this part cannot be rushed |
If the injured ankle is your left and you drive an automatic, driving often comes back within the first week or two. Whichever side it is, driving in a walking boot on the pedal foot is not safe, and taking the boot off to drive leaves the healing ligament unprotected at the worst possible moment.
Why Most Grade 3 Tears Heal Without Surgery
It surprises many people that a completely torn ligament is usually left to heal on its own. The torn ends of the ATFL sit close together, and with a short period of protection they knit with scar tissue that becomes a functional ligament again. Studies comparing approaches have consistently favored functional treatment, meaning brief protection followed by early, progressive rehab, over several weeks locked in a cast, which leaves the ankle stiffer and weaker without making it more stable. Early surgery for a first-time tear has not shown a clear enough advantage to justify the risks of an operation for most people. What a severe sprain does benefit from is a short protective phase, up to a few weeks in a boot or rigid brace, before the rehab starts in earnest.
Worth doing
- A walking boot or rigid stirrup brace for the first 1 to 3 weeks, worn for every step
- Weight bearing as pain allows from the first days, with crutches for balance
- Elevation above heart level through the first week, which controls swelling better than ice
- Gentle up-and-down movement early, then resistance band strengthening once out of the boot
- Balance training started by week 3 and continued well past the point it feels normal
- A lace-up brace or tape for sport through at least the first season back
Worth avoiding
- Several weeks in a cast for a first-time sprain, unless there is a specific reason for it
- Rolling the foot inward to "test" it, or stretching into that position early
- Walking barefoot on stairs or uneven ground in the first weeks
- Stopping the rehab the week it stops hurting
- Returning to court or field sports on the strength of pain-free jogging
- Assuming a normal X-ray means the ligament is intact
The Real Risk Is Not the Tear, It Is Skipping the Rehab
Roughly three in ten people who sprain an ankle go on to have repeated sprains or an ankle that feels like it gives way, a condition called chronic ankle instability. Two things drive it. The ligament can heal a little long if it is stressed too early, and the position sensors inside the ligament, which tell your brain where your foot is, are damaged by the tear and do not retrain themselves from ordinary walking. The result is an ankle that is a fraction of a second slow to react on a curb edge or an uneven lawn.
Each repeat sprain adds wear to the cartilage inside the joint, and long-standing instability is a recognized route to ankle arthritis. The fix is unglamorous: peroneal strengthening with a band, and balance work that progresses from standing on one leg to eyes closed, unstable surfaces, and movement. Before cutting or jumping sport, the ankle should pass a simple checklist:
- Walking, jogging, and stairs without a limp or pain
- Standing on the injured leg with eyes closed about as long as on the good side
- As many single-leg heel raises on the injured side as on the good side
- Hopping on the injured leg, forward and side to side, without pain or hesitation
- Figure-of-eight runs and sharp cuts at full speed with confidence
Once back, a lace-up brace or tape for sport through at least the first season, and ideally the first year, lowers the chance of another sprain. Used alongside strength work, a brace does not weaken the ankle.
When a Torn Ankle Ligament Needs Surgery
Surgery is the exception, and it is usually considered for what happens after the tear rather than the tear itself:
- •The ankle still gives way after 3 to 6 months of properly done rehab and bracing
- •Repeated sprains from minor missteps, with laxity confirmed on exam or stress X-rays
- •A cartilage and bone injury on the dome of the ankle bone (an osteochondral lesion) causing deep pain, catching, or locking
- •A torn or dislocating peroneal tendon, or a displaced bone fragment in or near the joint
- •Occasionally, early repair for a high-level athlete, after a frank discussion of the trade-offs
The procedures most often involved:
- •Brostrom repair. The stretched or torn ATFL, and the CFL if needed, is tightened and reattached to the fibula, usually reinforced with a nearby band of tissue, and sometimes backed up with a strong suture tape. It is the standard operation for chronic lateral ankle instability and gives good results for the large majority of patients
- •Ankle arthroscopy. Often done at the same time through small incisions, to inspect the cartilage and clear scar tissue or loose fragments that a sprain can leave behind
- •Tendon graft reconstruction. Used when the native ligament is too thin to repair, after a failed repair, or in people with very loose joints generally
- •Alignment correction. A high-arched foot with the heel tipped inward keeps loading the outer ankle, and may need correcting at the same time or the repair can stretch out again
After a Brostrom repair, expect roughly 2 weeks in a splint with little or no weight, a boot with progressive weight bearing to around week 6, then a brace and the same strength and balance rehab described above. Jogging usually returns around 10 to 12 weeks, and sport at 3 to 6 months. The goal of the operation is an ankle that stops giving way, which protects the joint over the long term.
What About a Grade 3 High Ankle Sprain?
A grade 3 high ankle sprain is a different injury. It tears the ligaments that bind the two lower leg bones together above the ankle joint, not the ligaments on the outer side, and a grade 3 there means the two bones have separated, often with a fibula fracture. It almost always needs surgical stabilization, then 3 to 6 months of recovery. If your pain sits above the joint, between the two shin bones, or pushing off and climbing stairs hurt more than walking on flat ground, read our high ankle sprain recovery guide instead.
Not sure it tore completely? The grade-by-grade timeline for all outer ankle sprains, and why the pain stops before the ankle is stable. Ankle Sprain Recovery: Grade 1, 2 and 3 →
Pain above the ankle, between the shin bones? That is a high ankle sprain, and it runs two to three times longer. High Ankle Sprain Recovery Timeline →
Did the X-ray show a break? A fractured ankle follows a different schedule from a ligament tear. Ankle Fracture Recovery Timeline →
Wondering when you can drive? The emergency-stop standard, and why driving in a boot is never the answer. Driving After Foot or Ankle Injury →
Weighing surgery for an ankle that keeps rolling? How podiatrists decide when conservative care has run its course. When Is Foot Surgery Needed? →
Ongoing ankle pain with no clear injury? Several conditions look like a sprain that never healed. Ankle Pain Conditions →
Frequently Asked Questions
How long does a grade 3 ankle sprain take to heal?
Most grade 3 ankle sprains take 3 to 6 months to return to full sport, and the ligament keeps strengthening for 6 to 12 months after the injury. Along the way, most people are bearing weight in a walking boot or rigid brace within the first few days, off crutches in 1 to 3 weeks, walking in a normal shoe with a lace-up brace by 3 to 6 weeks, and back to normal daily activity by 8 to 12 weeks. Straight-line jogging usually returns around 6 to 10 weeks, and cutting, jumping, and pivoting sports at 3 to 6 months. Where you land in those ranges depends mostly on whether the calcaneofibular ligament tore as well as the front ligament, whether anything else in the ankle was injured, and how consistently the rehab is done.
What is a grade 3 ankle sprain?
A grade 3 ankle sprain is a complete tear of one or more of the ligaments on the outside of the ankle, as opposed to a stretch (grade 1) or a partial tear (grade 2). It almost always starts with the anterior talofibular ligament, or ATFL, a small ligament at the front of the outer ankle that is the first to fail when the foot rolls inward with the toes pointed. In more forceful injuries the calcaneofibular ligament, or CFL, which runs down from the ankle knob to the heel bone, tears as well, and some clinicians reserve the term grade 3 for that two-ligament injury. The defining feature is mechanical instability: on examination the ankle bone can be drawn forward, or tilted inward, noticeably further than on the uninjured side, with a soft or absent end point, because the ligament that normally stops it is no longer continuous.
How long does a grade 3 ATFL tear take to heal?
An isolated complete ATFL tear, the most common form of grade 3 sprain, usually sits at the shorter end of the grade 3 range: off crutches within 1 to 2 weeks, normal daily activity at around 6 to 10 weeks, and cutting sport at around 3 to 4 months with a brace. When the CFL has torn as well, expect the longer end, closer to 4 to 6 months for cutting sport, because the ankle has lost its restraint against tilting inward as well as its restraint against sliding forward. In both cases the torn ends heal by scar tissue that keeps maturing for roughly a year, so wearing a brace or tape for sport through at least the first season back is sensible.
Can a grade 3 ankle sprain heal without surgery?
Yes, and most do. The torn ends of the ATFL lie close together and have a reasonable blood supply, so with a short period of protection they heal by scar tissue that bridges the gap. For a first-time grade 3 sprain, research comparing early surgery with functional treatment, meaning brief protection in a boot or rigid brace followed by structured rehab, has not shown a clear enough advantage for surgery to justify operating routinely, and surgery carries its own risks. The catch is that the ligament heals best when it is protected early and then loaded progressively. Left to heal on its own with no support and no rehab, it can heal lengthened, and the balance sense in the ankle stays impaired, which is the main route to repeated sprains and chronic instability.
What is the difference between a grade 2 and a grade 3 ankle sprain?
A grade 2 sprain is a partial tear: some fibers of the ligament are torn but it remains in continuity, the ankle is sore and swollen, and it may be slightly looser than the other side but still has a firm end point when tested. A grade 3 is a complete tear: the ligament is no longer continuous, swelling and bruising are usually larger and appear within hours, many people cannot walk normally at first, and the ankle is clearly unstable when tested. Recovery reflects that difference. A grade 2 ligament tear typically takes 3 to 8 weeks to return to normal daily activity and 6 to 12 weeks to return to sport. A grade 3 takes 8 to 12 weeks for daily activity and 3 to 6 months for sport. The two can be hard to tell apart on the day of injury, which is why an examination repeated at 4 to 5 days is more reliable.
How long does a torn ligament in the ankle take to heal?
Ligaments heal in three overlapping stages. The first week is an inflammatory phase, when swelling and bruising peak. From roughly week 1 to week 6, new collagen is laid down to bridge the tear, but it is disorganized and weak, which is why the ankle still needs protection. From about week 6 onward, that collagen is gradually remodeled along the lines of stress, a process that continues for 6 to 12 months or longer. In practical terms, a partially torn ankle ligament allows normal daily life in 3 to 8 weeks and a completely torn one in 8 to 12 weeks, but the healed tissue does not reach its final strength until many months after it stops hurting. That gap is the reason rehab and bracing matter long after the pain has gone.
Do I need an MRI for a grade 3 ankle sprain?
Usually not at first. A complete tear is diagnosed by examination, ideally repeated 4 to 5 days after the injury when swelling and muscle guarding have settled, and X-rays are taken when the Ottawa ankle rules suggest a fracture is possible. An MRI rarely changes the early treatment of a first-time grade 3 sprain, because the plan is protection and rehab either way. It becomes useful when recovery stalls at around 6 to 8 weeks, when deep aching, catching, or locking suggests a cartilage injury on the ankle bone, when pain sits behind the outer ankle knob and suggests a peroneal tendon tear, when a high ankle sprain is suspected, or when surgery is being planned. Stress X-rays, taken while the ankle is gently pushed forward or tilted, are mainly used to measure instability in ankles that keep giving way.
When can I walk and drive after a grade 3 ankle sprain?
Most people bear some weight in a walking boot or rigid brace within the first few days, using crutches for balance, and walk without crutches by 1 to 3 weeks. Walking in a normal shoe with a lace-up brace usually follows at 3 to 6 weeks. Driving depends on which ankle is injured. With the left ankle in an automatic car, driving is often possible once you are off any medication that makes you drowsy. With the right ankle, you should not drive in a boot, and driving usually returns around 3 to 6 weeks, once you are out of the boot and can press the brake hard and fast without pain or hesitation.
See a Podiatrist Near You
ASG Foot & Ankle has offices in Homewood, South Chicago Heights and Mokena. Our board-certified podiatrists accept most insurance. Find the office closest to you:
Ankle Still Feels Loose?
A complete ligament tear deserves a proper exam, the right protection in the first weeks, and a rehab plan that finishes the job. Our board-certified podiatrists can grade the injury, check for what a first X-ray can miss, and tell you whether your ankle needs a repair or simply the right rehab.