What follows is what happens to a limb during immobilisation, why it does not loosen up by itself, how the stages fit together and why swelling lingers. There is no exercise programme and no calendar: the first depends on what was broken, the second on your trauma doctor's decisions.

The information in this article does not replace a doctor's consultation. A physical therapist does not diagnose and does not prescribe treatment. Healing times and the load a fracture may safely take are decided by the doctor managing your injury.

What happens to a limb inside a cast

A cast, splint or brace holds the fragments in position while the bone knits, at the price of predictable changes around it.

Muscles weaken. A muscle that does not contract loses bulk and strength far faster than it regains them. A leg out of a cast is visibly thinner than the other; a hand may not hold a full kettle. That is disuse, not a sign of something going wrong.

Joints stiffen. Not only the joint under the dressing, but the neighbouring ones: capsule and ligaments lose elasticity, tissues slide past one another less easily, and movement meets a barrier well before the usual range.

Swelling persists. Muscle contraction is the main pump driving fluid back towards the heart, and an immobilised limb has no such pump.

Fear of loading appears. After weeks without weight-bearing the brain loses its sense of the limb: the leg is there but feels borrowed, and the first full-weight step is frightening even once the doctor allows it.

Why "the cast is off, it will sort itself out" does not work

There is a grain of truth in it: some things come back without effort. The question is how the body does it when nobody steers.

The body works around a deficit instead of closing it. An arm that will not straighten fully borrows the movement from the shoulder and trunk. A leg you are afraid to stand on takes less weight, so the limp continues long after the bone is solid. Such workarounds settle in within weeks, and unlearning a habit takes longer than restoring the movement would have.

Some things do not come back at all: strength needs more load than the body is used to, and a stiff joint does not loosen from use inside the range already available.

And without reference points people cannot tell where the line is: some protect the limb long after that stopped being necessary, others rush, meet pain and swelling and slide backwards.

The stages of recovery

What follows is the logic of the stages, not a timetable: the next step is triggered by what a person already does confidently, plus the doctor's go-ahead.

While the limb is still immobilised

The weeks in a cast are treated as waiting time, and that is where most ground is lost. Work is possible then too, and it concerns everything except the broken segment: the free joints of the same limb (fingers, elbow or shoulder with a forearm fracture), the healthy side, the trunk, and positioning that helps swelling settle. The less the body gives up now, the less has to be rebuilt later — but every movement here is agreed with the doctor, because some fractures need complete rest.

The first weeks after the cast comes off

The limb looks unfamiliar: dry skin, smaller muscles, stiff movement — and swelling that may briefly increase, precisely because the arm or leg hangs down again and has started working. The aim here is movement rather than strength: first range within the available limits, gently and often, alongside work on the swelling, then a gradual return of weight inside the doctor's limits. Short daily repetitions achieve more than one long effort every few days.

Restoring hand movement after a fracture is a case of its own: the hand holds many small joints, so stiffness feels sharper and the consequences are plainer — a button will not fasten, a key will not turn. Range, fine motor control and grip strength are worked on together, and this is where the urge to force it with the other hand is strongest.

Then — strength, weight-bearing and ordinary life

Once movement returns, the work shifts to strength, endurance and control: for a leg, weight-bearing, an even walking pattern, stairs, uneven ground; for an arm, grip, holding weight and precise movement unaided. Returning to running, jumping or heavy work is decided with the doctor — on imaging and loaded testing, not on a date.

Session format is on the physical therapy page, and what to bring to a first appointment on the rehabilitation after injuries and surgery page.

Swelling after a fracture: why it lingers

Swelling frightens people more than anything else here: it feels as though something inside is wrong. Usually it means something else — the system that drains fluid has not returned to its usual rhythm.

Several causes overlap: the injury triggers an inflammatory response, a normal part of healing; immobilisation switches off the muscle pump; small vessels and lymphatic channels near the fracture may be damaged. And when the cast comes off, the limb hangs down for the first time in weeks, so gravity adds to it.

Ordinary swelling has a recognisable pattern: greater in the evening and after activity, smaller in the morning and after rest with the limb elevated. That swing means the system works, just slowly.

What helps most is movement, since the muscles push fluid out; keeping the limb above heart level at rest; and increasing activity gradually rather than in jumps. Compression garments, supports, equipment-based methods and medication are a doctor's decision: similar-looking swelling has different causes, and some need investigation.

Why "working through the pain" is not a method

In everyday language, getting a joint moving again means gritting your teeth and pushing harder, often with the hands. It is the most expensive mistake of this period.

The distinction is worth learning once. Working discomfort is a stretch that fades within minutes of a session. Sharp pain makes you hold your breath, is still there the next morning and comes with fresh swelling: a signal to stop, not to push through.

Forcing range produces the opposite result: muscles tense protectively, swelling increases, and next day the range is smaller, not larger. After a few attempts what has been built is not a looser joint but a fear of moving. Brute force over a segment that is still knitting risks the healing itself; a sudden effort on a long-immobile joint risks damaging tissue that has lost elasticity. One case deserves separate mention: pain out of proportion to the injury — burning, with persistent swelling, changed skin colour and pain on light touch. That is a reason to see a doctor, not to push harder.

Range returns through regularity, not force. If it is not changing despite consistent work, go back to the trauma doctor rather than press harder.

Timing and load are decided by the trauma doctor

The key decision is not "which exercises to do" but "what is allowed yet", and it belongs to the doctor managing your injury.

Healing cannot be judged from outside: the bone is assessed on X-ray, not by how the limb feels. So "when can I put full weight on it", "when does the brace come off", "when can I carry something heavy" go to the trauma doctor — the answer depends on which bone broke, whether fragments were displaced, whether metalwork holds them, and how healing is going in your case.

A physical therapist works inside that corridor: they do not lift restrictions, do not move stages earlier and do not "speed up" recovery. Bring your imaging, discharge summary and written recommendations to a first appointment; when the paperwork leaves a question open, the right move is not to "try it carefully" but to ask the doctor. General information on rehabilitation care in Ukraine is published by the Ministry of Health of Ukraine.

This article is about a fracture healing through your own tissue. If a joint was replaced with an implant, the limits come from the construct and the operating surgeon: see rehabilitation after knee or hip replacement.

Everyday life: what to protect and what to avoid

Support. Crutches, a stick or a brace are put aside when the doctor says so, not when they become annoying. Giving them up early brings evening pain, more swelling and a limp that sets in.

Using the hand. The best way to get a hand working again is ordinary activity: holding a cup, fastening buttons, turning a key. Avoid carrying heavy loads in one hand, putting full body weight through the wrist, and jerking with the injured arm.

Heat, cold, ointments and rubbing. With a recent injury, internal metalwork or swelling of unclear origin these are not neutral: use only what your doctor has approved.

The flat and footwear. Clear rugs and cables from walkways, put a non-slip mat in the bathroom, light the route there at night. Shoes need a closed heel and a stable, non-slip sole; backless slippers are out for now. A second fall onto a newly healed bone is the worst outcome here, and the easiest to prevent.

Warning signs: when not to wait for the next session

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

pain, swelling, firmness or heat in the calf — possible signs of deep vein thrombosis, which a doctor must assess;
sudden breathlessness, chest pain, coughing blood, sudden weakness — call emergency medical services on 103 immediately, do not wait until morning and do not travel yourself;
fever or chills, reddened skin, increasing swelling, or discharge from a wound or from a fixation site;
sharp pain that appeared suddenly and does not settle at rest, especially after a fall or awkward movement;
numbness, pins and needles, or a change in colour or temperature of the fingers or toes — and if the limb is still in a cast, the dressing may be too tight, which cannot wait;
any further fall onto the injured limb, even if everything seems fine afterwards.

Moderate swelling and stiffness in the first weeks are expected, so this is no cause for panic. The rule is that the doctor judges, not the patient.

Questions and answers

How long does recovery after a fracture take?

Nobody knows in advance. The pace depends on which bone broke, whether there was displacement or surgery, how long immobilisation lasted, and on age and other conditions. Guidance comes from the trauma doctor.

When can work on hand movement after a fracture begin?

When a previously immobilised segment may be moved is decided by the doctor. Work on the free joints — fingers, elbow, shoulder — is often possible during immobilisation, by agreement.

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

Yes. Muscle weakness, restricted movement, swelling and an uneven walking pattern can all be worked on months later. Progress is slower and some limits may prove lasting, but the direction of the work is the same.

If you are in Zaporizhzhia

The Rehab Place practice works on an outpatient basis, with one-to-one sessions run by Oleksandr Kaliuzhnyi, physical therapist, practising since 2012.

A first consultation lasts around 60 minutes — conversation, examination, testing and a plan of work — and costs 300 UAH; for service members and veterans, 210 UAH. Bring your imaging, discharge summary and written recommendations, comfortable clothes and any crutches or brace you use. If bringing someone in is not yet possible, a home visit is considered case by case — ask when you call.

Access: the room 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 building's toilet is not adapted for visitors with limited mobility — please allow for this when planning a visit.

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

More: rehabilitation after injuries and surgery · physical therapy · rehabilitation after joint replacement · prices · how to find us.

The information in this article does not replace a doctor's consultation. Diagnosis, healing times, permitted load and restrictions after a fracture are decided by the doctor managing your injury.

Rehabilitation After a Fracture: Stages of Recovery