This article is for people with surgery scheduled or already behind them, and for the adult children helping a parent through it. There is no exercise programme here and no calendar: both depend on your operation and your surgeon's decisions. What you get instead is how the process works, who decides what, and which warning signs mean calling a doctor.

The information in this article does not replace a doctor's consultation. A physical therapist does not diagnose and does not prescribe treatment. The decision about what load is safe after a joint replacement is made by the operating surgeon.

How this differs from recovering after an ordinary injury

After a fracture, the body heals its own tissue, and healing sets the pace. After a joint replacement the situation differs on three counts, and generic advice found online works worse here than almost anywhere.

The limits are set by the implant, not by pain. The surgeon repairs muscle and capsule, and the implant is fixed into bone in a particular way. That determines which positions are unsafe now and how much weight the leg may take. Sensation is an unreliable guide: you can feel fine while making a movement that is not yet allowed.

The pain that drove you to surgery often disappears early. Once the old pain is gone and the leg feels light, it becomes tempting to walk further and drop the crutches sooner than agreed. This is when overloading and falls most often happen.

The main work is not inside the joint but around it. The implant moves on its own; what has to be rebuilt is strength, balance and the habit of loading both legs equally. Years of limping taught the body to protect the painful side, and that habit does not vanish with the old joint.

The two joints differ too. After a hip replacement the forbidden positions come first: deep bending, crossing the legs, twisting over the standing leg — your surgeon gives the exact list. After a knee replacement range of motion is central: bending and, just as importantly, full straightening, without which the walking pattern never evens out.

The operating surgeon sets the protocol

The order of the stages is set by the person who performed the operation. No outside opinion, and no article, replaces that decision.

The surgeon is the only one who saw the situation from the inside: the implant, how it was fixed, the quality of the bone, anything unusual about the procedure. That adds up to your corridor — when and how much weight the leg may take, how long you need support, which positions are off limits, whether range or lifting are restricted.

So the most valuable document after discharge is not a friend's experience with a similar implant but your own discharge summary and your surgeon's written instructions. Bring them, with any imaging, to the first meeting with a physical therapist.

The therapist works inside that corridor. They do not lift restrictions, do not move stages closer and do not "speed up" recovery, even when someone is doing better than expected. The job is to fill the permitted space with useful work and have you ready for the next stage.

In practice that means:

if the discharge summary leaves a question open, do not "try it carefully" — ask the surgeon;
if restrictions change at a follow-up, tell your therapist at once; the programme is rebuilt around the new limits;
if a routine contradicts your surgeon's instructions, the surgeon wins.

"When can I put full weight on the leg?" is the most common question of all, and exactly the one with no general answer: it depends on how the implant was fixed and how healing is going in your case. General information on the rehabilitation pathway in Ukraine is published by the Ministry of Health of Ukraine.

The stages of recovery

This is the logic of the stages, not a schedule. Moving on is decided by what a person can already do confidently, plus the doctor's permission — never by a date.

In hospital

Movement work usually begins early, while still on the ward; the exact moment is the surgeon's call. The goals are minimal and practical: sitting up, standing, first steps with a walker or crutches, turning in bed safely.

Staff also show how to go up and down stairs and explain which positions are forbidden. Record it on a phone — at home the details fade fast.

The first weeks at home

The most demanding stretch, and the most underestimated. The person is no longer supervised but not yet independent: swelling persists, stamina is low, the leg tires fast.

Three things are decided here. Daily routine instead of heroics: short, regular repetitions achieve more than one long effort every other day. Support for as long as the doctor prescribed: crutches are put aside when it is allowed, not when they become annoying. And safety at home: most trouble here comes not from "wrong exercises" but from a slip on a loose rug.

Later — getting back to ordinary life

Once basic actions stop requiring conscious effort, the work moves from "perform the movement" to "perform it confidently in real conditions": the stairs in your building, the lip of the bathtub, uneven pavement.

A plateau often seems to appear here, though usually the changes continue and have simply become qualitative: less support, less fear, less fatigue.

Returning to physical work, running, jumping or other impact loading is a separate decision, taken together with the surgeon. Dates are not promised in advance.

What a physical therapist actually does

The work runs along four strands at once.

Mobility. Restoring the range of motion available within the surgeon's limits. For a knee that means bending and full straightening; for a hip, a safe range clear of forbidden positions. Alongside it, the foot, pelvis and lower back, which usually stiffen too.

Strength. The muscles around the joint weakened for years before the operation and again afterwards. Without strength the implant works, but the walking pattern stays uneven and the leg tires quickly. This is the longest part of the job, and where home repetitions matter most.

Walking. A limp does not disappear simply because the joint was replaced: the body carries on protecting the old painful side out of habit. A therapist sees that from outside and works the symmetry back in.

Balance. The least obvious part and the most protective. A fall risks not only a fracture but damage to the implant, so steadiness on uneven ground, during turns and on stairs cuts that risk directly.

Session format and general principles are on the physical therapy page. If pain appears in the lower back or the other leg because loading has shifted, that is part of the work too: back, neck and joint pain.

Why "working through the pain" is not a method

In everyday language, "getting the knee moving again" often means "grit your teeth and push harder". It is the most common and most expensive mistake of the period.

The distinction worth learning: working discomfort — a stretch that settles within minutes of a session — is normal. Sharp pain — the kind that makes you hold your breath, is still there next morning and comes with fresh swelling — is a signal to stop.

Forcing range of motion through pain gives a predictable result: muscle guarding, more swelling, and less movement the next day rather than more. Fear is added on top — after a few painful attempts people avoid the movement altogether.

Range of motion comes back through consistency rather than force: frequent short bouts within permitted limits beat occasional attempts to stretch the joint out. If the range genuinely does not change despite regular work, the answer is to go back to the surgeon, not to press harder.

Everyday life: stairs, shoes, standing up, sleep

Daily life matters as much as the sessions.

Standing up and sitting down. A low armchair, a deep sofa and a low toilet seat are the main hazards of the early weeks, especially after a hip replacement. A higher seat with armrests is easier and safer — start there when preparing the flat.

Stairs. The order of movement up and down is taught in hospital — at home, do it the way you were shown, not the way that feels quicker. Hold the handrail and carry nothing heavy. If your stairs have no handrail, fit one before discharge.

Shoes. A closed heel, a stable non-slip sole, a low heel and a secure fit. Backless slippers and anything needing long lacing are not options now. A long-handled shoehorn solves the no-bending problem.

Sleep. If your surgeon recommended a sleeping position or a pillow between the knees, that is part of protecting the joint, and it applies at home exactly as on the ward.

The flat itself. Clear rugs and cables from walkways, add a non-slip mat in the bathroom and light the route to the toilet at night — that removes most of the falling risk.

Warning signs: when not to wait for the next session

Physical therapy does not replace your surgeon's follow-up. Contact a doctor without waiting for a scheduled appointment if you notice:

pain, swelling, firmness or heat in the calf — particularly on the operated leg; these are possible signs of deep vein thrombosis and must be assessed by a doctor;
sudden shortness of breath, chest pain, coughing up blood or sudden severe weakness — call emergency medical services on 103 immediately, do not wait until morning and do not drive yourself;
fever or chills, redness, increasing swelling around the surgical site, discharge from the wound or separation of the wound edges — possible signs of infection;
sudden severe pain with an inability to stand on the leg, a sense that the leg has become shorter or turned outwards, or a loud clunk followed by loss of support — this needs urgent surgical assessment;
numbness, increasing weakness, or a change in colour of the foot or lower leg;
any fall onto the operated side — even when everything feels fine afterwards.

This is not a reason to panic over every sensation: moderate swelling and warmth around the site are often expected early on. The rule is that a doctor decides, not the patient and not the therapist.

Questions and answers

When can I put weight on the leg after a joint replacement?

There is no general answer: it depends on how the implant was fixed and how healing is progressing. The operating surgeon decides and records it in the discharge summary or at a follow-up. If your documents do not cover it, ask the doctor.

Can I do anything while I am still using a walker or crutches?

Often yes, with your doctor's agreement. Much useful work needs no weight bearing on the operated leg: mobility within permitted limits, the unaffected side, the arms and trunk, bed-to-chair transfers.

Can I skip rehabilitation if nothing hurts?

The absence of pain is a good sign, but it does not restore strength or correct the habit of limping. That pair lies behind most complaints months after a successful operation: fatigue, lower back pain, uncertainty on stairs.

I came late — several months have passed. Is there any point?

Yes. Weakness, restricted mobility and an uneven walking pattern can be worked on months later. Progress is slower, but the direction is the same — and your surgeon's restrictions still apply.

If you are in Zaporizhzhia

The Rehab Place physical therapy practice works on an outpatient basis, one to one, with Oleksandr Kaliuzhnyi, physical therapist, in practice since 2012.

A first consultation takes about 60 minutes — conversation, examination, testing and a plan of work — and costs UAH 300; for service members and veterans, UAH 210. Bring your discharge summary, imaging, your surgeon's instructions and the crutches or walker you use. If bringing the person in is not yet possible, a home visit is considered individually — ask when you call.

Accessibility: the practice is on the ground floor with no internal stairs, with a ramp at the building entrance and parking nearby. One thing to know in advance: the toilet in the building is not adapted for visitors with reduced mobility — please take this into account when planning a visit.

To book or ask a question: +380 97 824 48 01.

More: rehabilitation after injuries and surgery · physical therapy · back, neck and joint pain · prices · how to find us.

The information in this article does not replace a doctor's consultation. Questions of diagnosis, timing, safe loading and restrictions after a joint replacement are decided by your operating surgeon.

Rehabilitation After Knee or Hip Replacement