Life After Cruciate Ligament Surgery: Stairs, Driving, Desk Work and Sport in Order

The first question most people ask after an anterior cruciate ligament reconstruction is not about the graft, the screws or the scar. It is about the flight of stairs between the hospital door and their own bed. Then it is the car. Then the laptop, the school run, the job that involves standing all day, and finally the five-a-side game or the ski trip that caused the injury in the first place.

Life after cruciate surgery is less a single recovery than a queue of small independences, each one earned in roughly the same order for almost everyone. Knowing that order matters, because the biggest mistakes happen when people try to jump it: driving before the leg can brake, returning to sport before the muscle has come back.

This explainer walks through that sequence honestly, with the timeframes major guideline bodies actually publish, and with the parts that surgeons and physiotherapists wish patients understood earlier.

What actually happens during cruciate ligament reconstruction

The anterior cruciate ligament, or ACL, is a short cord of tissue in the center of the knee that stops the shin bone sliding forward and twisting under the thigh bone. When it tears, it does not knit back together the way a bone or a skin cut does, because it sits inside joint fluid with a poor blood supply. Surgery therefore does not repair the old ligament in most cases; it replaces it.

The surgeon takes a graft, a strip of tendon used as a substitute ligament, most often from the patient’s own hamstring, patellar tendon or quadriceps tendon, or occasionally from donor tissue. Tunnels are drilled in the thigh and shin bones where the original ligament attached, the graft is threaded through, and it is anchored with small screws or buttons. The operation is done arthroscopically, meaning through keyhole incisions with a camera, and typically takes one to two hours according to the Mayo Clinic. Most people go home the same day.

The graft is strong on the operating table but it is not yet a ligament. Over the following months it goes through a biological process in which cells migrate in, the tissue remodels, and the tunnel attachments heal into bone. Mechanically it is at its weakest somewhere in the early months, not the early days. This single fact explains almost every rule of rehabilitation: the timeline is set by biology, not by how good the knee feels.

Damage to other structures is often addressed at the same time. Roughly half of ACL tears come with a torn meniscus, the cartilage shock absorber, and a meniscal repair usually adds weight-bearing restrictions that a straightforward reconstruction would not. If your surgeon repaired a meniscus, your early timeline will be slower than a friend’s, and that is expected rather than a setback.

Who is usually offered surgery, and who is usually asked to wait

Not every torn ACL is reconstructed. The NHS and Mayo Clinic both describe surgery as most appropriate for people whose knee gives way during daily life or who want to return to sports involving cutting, pivoting or jumping, and for those with additional injuries such as a repairable meniscus tear. A person whose activities are mostly straight-line, such as cycling, swimming or jogging, may do well with structured physiotherapy alone, and guidelines treat that as a legitimate choice rather than a lesser one.

Timing also matters. Operating on a hot, swollen knee with poor range of motion increases the risk of long-term stiffness, so surgeons commonly ask patients to complete a period of prehabilitation first: swelling control, regaining full straightening, and waking up the quadriceps. The NHS notes that surgery is usually delayed until the swelling has settled and movement has returned, which can be several weeks after the injury.

Some people are asked to wait longer, or steered toward non-surgical care, for other reasons: active infection, uncontrolled diabetes, smoking that the person is not yet ready to address, or a skeleton that is still growing, where the surgeon may choose a technique that avoids the growth plates. Older adults with early arthritis in the knee are sometimes advised that a new ligament will not solve the pain that actually limits them.

Both paths, surgical and non-surgical, share the same long rehabilitation backbone. The decision belongs to you and your treating team together, weighing what you want your knee to do against what the evidence says surgery and rehabilitation can each deliver, and nobody should feel pushed toward an operating theatre by a scan result alone.

The first two weeks: what life after cruciate surgery really looks like

Day one is mostly about swelling, ice and the strange experience of a leg that will not obey. The nerve block used during surgery often wears off overnight, and the first 48 hours are commonly the most uncomfortable. Pain control in this window typically combines simple analgesics, sometimes an anti-inflammatory class medicine and occasionally a short course of opioid pain relief; the mix and duration are decided by the prescribing clinician, and the aim is to enable exercises rather than to abolish every sensation.

Walking begins almost immediately. MedlinePlus describes people using crutches in the first weeks and progressively putting weight through the leg as pain and the surgeon’s instructions allow. A brace locked straight is used by some surgeons and not others; this is a matter of surgical preference and the type of graft or meniscal work, not a marker of a better or worse operation.

The daily homework is unglamorous: lying with the heel propped so the knee sags fully straight, tensing the thigh muscle until the kneecap slides, sliding the heel to bend the knee a little further each day, and elevating the leg above the heart when resting. Full straightening is the priority that physiotherapists guard most jealously, because a knee that heals a few degrees bent limps for years.

Expect the leg to look shocking. Bruising tracks down to the ankle as the surgical bleeding drains with gravity, and the calf can feel tight. That tightness is usually benign, but it is also the one symptom that must not be assumed benign, since it overlaps with the signs of a blood clot covered in the final section.

Around the two-week mark most people have their wound check, are bending to about a right angle, and are starting to ask about stairs and cars.

ACL recovery timeline: the order in which life returns

Every program is individual, and any surgeon can slow the sequence for good reasons. Still, the published ranges from the NHS, Mayo Clinic and MedlinePlus are consistent enough to give a sense of order. Treat the table below as the usual sequence, not a schedule you have failed if you miss.

Activity	Typical range in guidance	What usually has to be true first
Walking short distances with crutches	Day of surgery to first days	Nerve block worn off, safe balance
Stairs with support	First 1–2 weeks	Can take weight, quadriceps switching on
Walking without crutches	About 2–4 weeks (later if meniscus repaired)	No limp, near-full straightening
Desk work	2–3 weeks (NHS)	Pain allows sitting; leg can be elevated
Driving	Several weeks; surgeon clearance	Off crutches and opioid medicine, can brake hard
Manual or standing work	Around 3 months (NHS)	Strength and endurance for the shift
Straight-line jogging	Around 3–4 months	Strength tests, no swelling after loading
Pivoting, cutting sport	9–12 months in most programs	Strength symmetry, hop tests, psychological readiness

The NHS gives the work and sport ranges; the running and sport ranges reflect Mayo Clinic guidance and the return-to-sport research discussed later. Notice how the table is front-loaded. The visible milestones arrive in weeks, while the invisible one, a graft strong enough to survive a twist, takes the better part of a year. The gap between how the knee feels at three months and what it can safely do is the most dangerous stretch of the whole recovery.

Stairs after ACL surgery: up with the good, down with the bad

Physiotherapists teach a rhyme worth memorizing: up with the good, down with the bad. Going up, lead with the non-operated leg and let it do the lifting, then bring the operated leg and crutches to the same step. Coming down, place the crutches on the lower step, lower the operated leg first, and follow with the good leg. The operated knee never has to bend under load while it is still learning to trust itself.

Most people manage a handful of steps this way within the first week or two, which is why hospitals ask about home stairs before discharge rather than after. A banister helps enormously; if you have a rail on only one side, go up facing one way and come down backwards so that the rail is always beside your strong hand. Some people find it easier, for the first few nights, to sit on the stairs and bump up one step at a time. That is not a failure of technique; it is a sensible answer to fatigue late in the day.

Descending normally, one foot per step, is the harder skill and the better test. It demands the quadriceps lower the body weight in a controlled way, a movement called eccentric loading, meaning the muscle lengthens while it works. Struggling with it is one of the clearest signs that the thigh muscle has not yet recovered its strength, regardless of how the knee itself feels. Many rehabilitation programs use a step-down test for exactly this reason, watching whether the pelvis drops or the knee wobbles inward.

When stairs start to feel ordinary, usually somewhere in the second month for a straightforward reconstruction, that is a genuine milestone. Until then, treat every staircase as a small exercise session, not an obstacle to be rushed.

Driving after ACL surgery: what has to be true before you turn the key

Driving is the milestone people most want a date for and the one clinicians are least willing to give one. The reason is simple. An emergency stop requires the right leg to move fast, press hard and hold, and a knee that is stiff, swollen or dulled by strong painkillers will do all three badly. Studies of brake reaction time after knee surgery consistently show slowed responses in the early weeks, recovering as strength returns.

Three conditions are widely agreed on before driving again. First, you are no longer taking opioid pain medicine, because it impairs reaction time and, in many jurisdictions, makes driving illegal. Second, you are walking without crutches, since a leg that cannot bear full weight cannot brake reliably. Third, you can bend the knee enough to get in and out of the car and operate the pedals without pain. The NHS advises checking with your surgeon and your insurer before driving, and notes that this often means waiting several weeks.

Which knee matters. After surgery on the left leg, a person driving an automatic car may be cleared earlier than someone whose right knee was operated on, because the left leg does no braking. Manual gearboxes bring the left leg back into play for the clutch. A locked brace, if you have one, is generally considered incompatible with driving regardless of side.

A practical rehearsal helps: sit in the parked car with the engine off and practice pressing the brake hard, repeatedly, for a full minute. If that causes pain or your leg tires quickly, you are not ready for the situation where it matters. Insurance policies can carry their own conditions after surgery, so a phone call before the first drive is worth the ten minutes.

Desk work, standing jobs and manual work: returning in the right order

Work returns in stages that track the knee’s tolerance for gravity. A job done sitting down can often resume within two to three weeks according to the NHS, provided you can elevate the leg, get up to move every 30 to 45 minutes, and are not relying on sedating medicine to get through the day. Working from home, where that is an option, tends to make the first fortnight back far more manageable than a commute on crutches.

The desk itself deserves a moment of thought. A footstool or an upturned box lets the leg rest straight rather than hanging bent for hours, which is the position that most reliably produces end-of-day swelling and stiffness. A cheap kitchen timer as a reminder to stand, straighten and do a few quadriceps contractions is a better investment than any gadget. Swelling that is worse every evening than the morning is the knee telling you the day is too long or too static.

Jobs that involve standing, walking or carrying are different. The NHS suggests around three months before returning to manual work, and jobs that include kneeling, ladders, uneven ground or heavy lifting may need longer, along with a phased return negotiated with an occupational health service or employer. Healthcare, teaching, hospitality and construction all fall into this group in practice, even when the job description says otherwise.

Fatigue is the underestimated factor. The metabolic cost of walking with a stiff knee and weak thigh is real, and many people find themselves exhausted by early afternoon in the first weeks back. Building in a shorter day to begin with, then extending it, is a plan rather than a concession. The right order is sedentary, then light, then full duties, with the knee’s evening swelling as the referee.

Can I sleep on my side after ACL surgery? Sleep, showers and small logistics

Sleep is the recovery variable nobody plans for and almost everybody struggles with in the first weeks. On your back with the heel propped on a pillow, so the knee hangs straight, is the position most rehabilitation teams prefer early on, because it doubles as an extension stretch. Many people cannot sleep on their back, and the honest answer is that side-lying is usually acceptable once the wound is comfortable and your surgeon has not asked you to keep a brace locked at night. A pillow between the knees keeps the operated leg from twisting or dropping into a bent position; lying on the operated side is generally less comfortable than lying on the other side with the surgical leg on top.

Showering is typically allowed once the dressings can be kept dry or have been replaced with waterproof ones, and MedlinePlus advises against soaking the incisions in a bath, pool or hot tub until they have fully sealed and your surgeon agrees. A shower chair or a non-slip mat matters more than it sounds; a bathroom floor is where a lot of early falls happen.

Other small logistics accumulate. Loose shorts or trousers with a wide leg go over a brace where jeans will not. A backpack beats a shoulder bag when both hands are on crutches. Stocking the fridge and freezer before surgery, arranging for someone to be around for the first two or three nights, and moving the bedroom downstairs if that is possible, all make the difference between a hard week and a miserable one.

Ice, elevation and compression remain useful for weeks, not days. Twenty minutes of ice with a cloth barrier after exercise, several times daily in the early period, is a standard recommendation in discharge guidance and carries almost no downside.

Physiotherapy after ACL reconstruction: why the quadriceps is the whole story

If a single idea could be tattooed onto every discharge letter, it would be this: the surgery replaces a ligament, but the recovery is about a muscle. The quadriceps at the front of the thigh switches off almost immediately after knee injury and surgery, a protective reflex called arthrogenic muscle inhibition, meaning the joint’s own swelling and pain signals suppress the muscle’s ability to contract. Within weeks the thigh visibly shrinks. Everything that follows, from confident stairs to safe sport, depends on reversing that loss.

Early physiotherapy therefore looks deceptively simple: straight-leg raises, quad sets, heel slides, stationary cycling once the knee bends far enough, and a great deal of attention to walking without a limp. The Mayo Clinic describes rehabilitation as progressing through phases: restoring motion and muscle control first, then strength, then agility and sport-specific movement, with each phase gated by what the knee can tolerate rather than by the calendar alone.

By the third and fourth months the work becomes recognizably gym-like: squats, lunges, leg presses, hamstring loading and balance drills on a single leg. This is also the point where motivation dips, because the knee feels fine and the exercises feel like homework. Programs that lose people tend to lose them here. Strength testing, often comparing the operated leg to the other as a percentage, gives a concrete target that beats vague encouragement, and most return-to-sport criteria ask for the two legs to be within roughly ten percent of each other.

Hamstring grafts add one wrinkle: the harvest site itself needs time, and aggressive hamstring stretching or heavy loading is usually delayed. Your physiotherapist will know which graft you have and will pace accordingly. Whatever the plan, consistency across months matters more than intensity in any single week.

Return to sport after ACL reconstruction: what the evidence honestly shows

Here is the part most recovery guides soften. In a systematic review of 69 studies covering more than 7,500 people, Ardern and colleagues found that about 81 percent returned to some sport after reconstruction, 65 percent returned to their pre-injury level, and 55 percent returned to competitive sport. Those are averages across many settings and sports, and they mean that a reconstructed knee is a good knee, not a guaranteed ticket back to the same team.

Timing is where evidence has changed practice most. The Delaware-Oslo cohort study by Grindem and colleagues followed people returning to pivoting sports and found that for every month return was delayed, up to nine months after surgery, the rate of re-injury fell by about half. Returning before recovering symmetrical quadriceps strength was also linked to markedly higher re-injury risk. This is why many programs now use nine months as a floor rather than a target, and twelve months for the most demanding sports, with the decision resting on tests rather than dates.

Those tests typically include quadriceps and hamstring strength compared with the other leg, a battery of single-leg hop tests for distance and control, movement quality under fatigue, and, increasingly, a measure of psychological readiness. Fear of re-injury is one of the commonest reasons people who are physically cleared never return, and it is treated as a legitimate rehabilitation target rather than a character flaw.

A second injury, to either knee, remains a real risk, particularly in younger athletes returning to cutting sports. Structured injury-prevention warm-ups that train landing mechanics and hamstring strength are recommended by most sports medicine bodies and continue for as long as you play. Sport returns last in the queue for a reason, and the queue exists to protect the years of playing that come after.

How to manage weight and eating during a long recovery

Weight gain after cruciate surgery is common and rarely discussed in clinic. Someone who ran or trained several times a week suddenly spends months walking gingerly, while appetite, habit and stress eating carry on as before. The arithmetic is unforgiving, and it is nobody’s fault.

Two things are true at once. Healing tissue has real nutritional needs: adequate protein for muscle rebuilding and graft remodeling, enough total energy that the body does not scavenge muscle, and the usual vitamins and minerals that a varied diet supplies. A drastic calorie restriction in the first months works directly against the quadriceps recovery that the entire rehabilitation depends on. The Johns Hopkins and NHS material on knee recovery consistently frames good nutrition as part of healing, not an afterthought.

At the same time, activity has fallen, so modest adjustment is sensible: smaller portions of the energy-dense foods that used to fuel training, protein distributed across meals, plenty of vegetables and fluids, and honest attention to alcohol and late-night snacking, which tend to rise during boredom and disrupted sleep. Think in terms of not gaining during the first three months rather than losing, and then let the returning exercise do the work later.

Movement that does not stress the graft is available earlier than most people realize. Stationary cycling once the knee bends enough, upper-body strength training, seated resistance work and, once wounds are sealed and the surgeon agrees, pool walking or swimming with a straight-leg kick all burn energy, protect mood and preserve fitness. Anyone with diabetes, an eating disorder history or significant weight concerns should talk with their care team, because the balance between healing needs and weight goals is individual and belongs in that conversation.

Is knee pain years after ACL surgery normal? What long-term life looks like

Ask a room of people five years past reconstruction and the answers split. Many report a knee they no longer think about. A meaningful minority describe kneeling discomfort, stiffness after long sitting, aching after a hard game, or a knee that feels older than its twin. Both experiences are ordinary, and the pattern of the pain usually points to its source.

Pain at the front of the knee, especially when kneeling, is a recognized long-term complaint after patellar tendon grafts, where a strip of the tendon below the kneecap was harvested. It is not a sign the reconstruction failed. Hamstring graft patients more often notice weakness or cramping at the back of the thigh during deep knee bends. Neither typically needs further surgery, but both respond to targeted strengthening, so a persistent problem years later is a reason to see a physiotherapist rather than to accept it.

The larger long-term issue is osteoarthritis, the gradual wear of joint cartilage. The Cleveland Clinic and other sources note that a knee that has suffered an ACL injury carries a higher lifetime risk of arthritis than an uninjured knee, and that reconstruction restores stability but has not been shown to eliminate that risk. The initial injury, associated meniscus and cartilage damage, and body weight over the following decades all contribute. Protecting the meniscus, keeping the thigh muscles strong and staying at a healthy weight are the levers within your control.

Pain that is new, associated with swelling, locking, catching or the knee giving way again, is a different matter and warrants assessment. Re-tear of a graft, a new meniscal tear or loosening of hardware can present years later, particularly after a twist, and imaging can distinguish them from ordinary wear. A knee that has quietly served you for years has earned a proper look when it starts to complain.

What people often get wrong about life after cruciate surgery

The most common misunderstanding is that the knee is fixed on the day of surgery. It is not; it is rebuilt, and the rebuild is weakest weeks to months in, exactly when it starts to feel normal. That mismatch drives most of the myths that follow.

People assume that pain-free means safe. A graft has no pain receptors telling you it is being overloaded, so a twisting movement at four months can feel fine and still be dangerous. Strength testing and time, not sensation, are the gatekeepers for pivoting activity.

Another myth is that walking on a torn ACL, or on a fresh reconstruction, is impossible. Many people walk quite well within a week or two of tearing the ligament once swelling settles, and MedlinePlus and Mayo Clinic both describe walking soon after surgery. Walking in a straight line is not what the ACL is for; controlling twists and sudden stops is. A knee that walks comfortably can still give way on a curb.

Braces are often credited with more than they can do. Post-operative braces protect a healing meniscus or keep the knee straight in bed; the evidence that a functional brace prevents re-injury during later sport is weak, and most sports medicine bodies do not recommend one routinely. Your surgeon may have specific reasons for using one, which is different from a brace being a substitute for strength.

Finally, many people believe rehabilitation ends when the physiotherapy appointments end. Formal sessions usually taper off well before the graft is mature and long before strength has plateaued. The final months of the program are almost always self-directed, and the ongoing warm-up and strength habits that reduce a second injury are, in practice, for life. The operation is the shortest part of the story; treating it as the whole story is where people go wrong.

Questions to ask your care team before and after cruciate surgery

A good consultation is a two-way exchange, and surgeons and physiotherapists generally welcome specific questions over general anxiety. Write these down and take them in, because the post-anesthetic brain forgets almost everything it hears on the day.

• Which graft are you planning to use for me, and why that one over the alternatives given my age, sport and job?
• Did you find, or do you expect, a meniscus or cartilage injury, and how would repairing it change my weight-bearing and timeline?
• Will I have a brace, and if so what is it for, when should it be locked or unlocked, and when can it come off entirely?
• What are your specific criteria for driving, and does that differ because of which leg was operated on and whether my car is automatic?
• When will my first physiotherapy appointment be, how often will sessions run, and what should I be doing at home between them?
• What signs should make me call you, and who do I call out of hours?
• What tests, rather than dates, will decide when I can run, and when I can return to my sport?
• What is my personal risk of re-injury and of long-term arthritis, and what can I do about each?
• If I choose not to have surgery, or to delay it, what would a non-surgical program look like and what would I be giving up?

Ask, too, about the practical things a clinic can forget to mention: how long dressings stay on, whether you may shower, what to do about a fever, and how many days of sedating pain medicine to expect before it is stopped. The answers set expectations, and expectations, in a recovery this long, are half the battle. A team that explains the reasons behind its rules is also easier to follow when the knee feels better than it is.

When to call your doctor after ACL surgery: red-flag signs

Most of what a healing knee does in the first weeks is alarming to look at and entirely expected: bruising to the ankle, warmth, a tight and swollen joint, and pain that peaks on the second or third day. A short list of symptoms falls outside that pattern and should prompt a same-day call to your surgical team, or an emergency service if severe.

Seek urgent care for calf pain, swelling or tenderness that is new or worsening, especially in one leg, since this can signal a deep vein thrombosis, a blood clot in the leg veins that is a recognized risk after any leg surgery and period of reduced mobility. Sudden breathlessness, chest pain or coughing up blood need emergency attention because they can indicate a clot that has traveled to the lungs. Anyone prescribed a blood-thinning, or anticoagulant, medicine after surgery should take it exactly as the prescribing clinician directed and report unusual bleeding.

Call the same day for a fever, spreading redness or heat around the incisions, cloudy or foul-smelling drainage, or a wound that opens, all of which can indicate infection. Pain that escalates sharply rather than easing after the first few days, a knee that becomes tense and hot with a rapid new swelling, numbness or persistent pins and needles in the foot, or a foot that turns pale or cold, also need prompt assessment.

Later in recovery, a sudden pop, a knee that gives way or locks, or new swelling after a twist warrants a review even if you feel you were doing everything right. MedlinePlus lists many of these warning signs in its reconstruction guidance. None of them means something has certainly gone wrong; each means someone qualified should look. Your care team would far rather hear from you about a calf that turned out to be nothing than not hear at all.

Frequently asked questions

Is it normal to still have knee pain 5 years after ACL surgery?

Mild, activity-related aching or kneeling discomfort years later is common and does not usually mean the reconstruction failed; it often relates to the graft donor site or early cartilage wear. Pain that is new, comes with swelling, locking, catching or the knee giving way, or follows a twist, is different and should be assessed. A physiotherapist can also address strength deficits that persist for years and quietly drive discomfort.

Can you walk on a torn ACL after a week?

Many people can walk fairly normally within a week or two of tearing the ACL once swelling settles, because the ligament’s main job is controlling twisting and sudden stops, not straight-line walking. Walking comfortably does not mean the knee is stable; it can still give way on uneven ground or a pivot. Guidance from the NHS and Mayo Clinic supports early controlled movement, but the knee still needs proper assessment.

Can I sleep on my side after ACL surgery?

Usually yes, once the wound is comfortable and provided your surgeon has not asked you to sleep with a brace locked straight. Lying on the non-operated side with a pillow between the knees keeps the surgical leg supported and stops it dropping into a bent, twisted position. Sleeping on your back with the heel propped is often preferred early because it doubles as a straightening stretch.

How do I lose weight after ACL surgery?

Aim first to avoid gaining during the early months rather than to lose, because a sharp calorie cut works against the muscle rebuilding that recovery depends on. Keep protein steady across meals, trim energy-dense snacks and alcohol that no longer match your activity, and use stationary cycling, upper-body training and pool work once your surgeon agrees. People with diabetes or weight concerns should plan this with their care team.

What is a typical ACL recovery timeline?

Walking with crutches begins within days, crutches are usually dropped within a few weeks, desk work resumes at around two to three weeks and manual work at around three months according to NHS guidance. Jogging commonly starts around three to four months, and pivoting sport typically waits nine to twelve months and depends on passing strength and hop tests. Meniscus repair or complications slow the early stages.

When is driving after ACL surgery usually allowed?

There is no fixed date; surgeons generally ask that you are off crutches, no longer taking opioid pain medicine, able to bend the knee to reach the pedals, and able to brake hard repeatedly without pain. This often means several weeks, longer when the right knee was operated on or you drive a manual car. The NHS advises confirming with your surgeon and insurer before the first drive.

How long before return to sport after ACL reconstruction is considered safe?

Most programs use nine months as a minimum and twelve months for demanding cutting sports, and the decision rests on tests rather than dates. A cohort study found re-injury risk fell by about half for each month return was delayed up to nine months, and that returning with weak quadriceps raised risk sharply. Strength within about ten percent of the other leg, hop tests and psychological readiness are the usual gates.

How should I manage stairs after ACL surgery in the first weeks?

Lead with the non-operated leg going up and with the operated leg going down, keeping crutches or a banister for support, so the healing knee never bends under your full weight before it is ready. Most people manage a few steps this way within the first week or two. Descending normally, one foot per step, comes later and is a useful marker of quadriceps strength returning.

Do I need a knee brace after ACL surgery?

It depends on your surgeon and on whether a meniscus was repaired; some use a brace locked straight for the early weeks, others use none. Braces protect healing structures and help with early walking, but evidence that a functional brace prevents re-injury during later sport is weak, and most sports medicine bodies do not recommend one routinely. Strength, not bracing, is what protects the graft long term.

What are the warning signs of a problem after ACL surgery?

Call your team the same day for calf pain or swelling, fever, spreading redness or discharge from the wound, rapidly increasing tense swelling, numbness or a cold pale foot. Sudden breathlessness or chest pain needs emergency care because it can indicate a clot that has reached the lungs. Later on, a pop, locking or the knee giving way after a twist warrants review even if recovery had been going well.

References

• MedlinePlus: ACL reconstruction, discharge instructions
• PubMed: Fifty-five per cent return to competitive sport following ACL reconstruction surgery (systematic review and meta-analysis)
• PubMed: Simple decision rules can reduce reinjury risk by 84% after ACL reconstruction: the Delaware-Oslo ACL cohort study

This article is for general information only and is not a substitute for professional medical advice. Please consult a qualified doctor about your individual situation.