Orthopedics · Foot and ankle
Ankle osteoarthritis
Does your ankle joint hurt with every step, stiffen and swell? Often it is worn cartilage, most commonly after an earlier injury. HR Clinic offers cartilage treatment, ankle joint replacement or fusion of the joint, arthrodesis. If everything is in order, the procedure can take place as soon as within a week of the consultation.
- No referral from a GP needed
- Operated by Prof. MUDr. Radek Hart
Procedure under general or regional anesthesia
- most common cause
- injuryfracture or repeated ankle sprains
- until the procedure
- 1 weekfrom the consultation, if everything is in order
- everyday activities
- 3–4 monthsafter surgery in most cases
- full recovery
- 4–9 monthsdepending on the findings and the extent of the procedure
01When surgery is considered
Pain with every step and a stiff ankle joint
The ends of the bones in the ankle joint are covered by smooth cartilage on which the bones glide during movement. In osteoarthritis the cartilage gradually thins and breaks down, the space between the bones narrows and bone spurs grow at the edges of the joint. The ankle joint wears out less often than the knee or hip, most often after an injury.
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Pain when walking and under load
The ankle joint hurts with every step and longer walking is difficult. The pain gets worse after exertion, often also in the morning or after prolonged sitting or rest.
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Stiffness, swelling and crackling
The joint moves less easily, swells after load and may crackle. Walking becomes unsteady and the muscles around the ankle joint weaken. In an advanced stage the joint may become deformed.
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Often after an injury
An ankle fracture or repeated sprains damage the cartilage. An injured joint has about a seven times higher risk of osteoarthritis than an uninjured one, even if the injury was treated properly. Osteoarthritis can appear even many years after the injury. An ankle that keeps giving way is described on the page Unstable ankle.
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Other causes
Rheumatoid arthritis and other joint inflammation, diabetes, gout, excess weight or long-term overloading of the ankle joint.
- outline of the foot
- bones
- joint cartilage
02When to operate
When surgery is appropriate
Surgery is considered when ankle pain limits everyday life. The doctor decides at the consultation whether and when to operate.
Symptoms
Pain limits everyday life
When walking, at work and when sleeping.
- The ankle joint hurts with every step and longer walking is difficult
- Pain limits walking, sleep and everyday activities
Findings
Symptoms decide, not the image
The image alone does not decide on surgery.
- Some people have major changes on the image and little pain, others the reverse
- The doctor examines the ankle joint and gait and assesses the weight-bearing X-ray
Joint
Stiff or deformed ankle joint
In an advanced stage of osteoarthritis.
- The cartilage disappears and bone rubs on bone
- The joint moves less easily, swells and may become deformed
Not sure whether surgery is for you? The examination will tell; if you have diabetes, rather come earlier. Book a consultation
03Surgical options
Preserve, replace or fuse the joint?
The choice of operation depends on how much of the joint the osteoarthritis has affected, the alignment of the foot and how mobile the joint still is, as well as on your age, health and activity demands. The decision is always individual and we will discuss it at the consultation.
The joint stays
Cartilage treatment
When the cartilage is damaged in only part of the joint.
- The damaged area is treated and your own joint is preserved, with its movement
- More suitable for early to moderately advanced osteoarthritis and in younger, active people
- Which approach suits your joint is shown by the examination and images
Movement stays
Ankle joint replacement
When the cartilage is destroyed in a large part of the joint.
- The damaged joint surfaces are removed and replaced with metal surfaces with a plastic insert
- It relieves pain and preserves part of the movement, so the neighboring joints are not overloaded as much
- More suitable for people who do not want to return to demanding sports
- Over time it may loosen or wear; it can then be replaced
Pain goes, and so does movement
Arthrodesis of the ankle and hindfoot
Fusion of a joint that is stiff, deformed, or in active people.
- The remaining cartilage is removed and the bones are secured with screws, possibly a plate or nail, until they fuse into one
- A painful stiff joint becomes a stiff joint that does not hurt
- Hindfoot: with osteoarthritis of the joints below the ankle joint, these joints are fused; the foot then tilts sideways less easily, for example on uneven ground
- The neighboring joints carry more load and over the years osteoarthritis may also appear in them
Hindfoot fusion is also used for flatfoot in adults. More on the page Flatfoot
04How the procedure works
From booking to going home
Before surgery the ankle joint needs to be examined thoroughly and the operation planned. The most important is a weight-bearing X-ray; CT or MRI is added as needed. The doctor will explain which procedure suits you based on the examination and images.
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Booking
Online or by phone. A referral from a GP is not required.
online or by phone -
Consultation and examination
Prof. Hart examines the ankle joint and gait and assesses the images.
diagnosis and treatment plan -
Procedure
Under general or regional anesthesia; the anesthesiologist recommends the type. After the operation a cast protects the ankle joint.
date according to the treatment plan -
Going home
On crutches, with the leg raised as high as possible. You must not drive yourself.
check-ups and physiotherapy
05Recovery and physiotherapy
Recovery takes months
In most cases surgery relieves the pain and makes everyday activities easier. Most people return to them within 3 to 4 months; full recovery takes 4 to 9 months depending on the findings and the extent of the procedure. Mild swelling may last up to a year. If needed, we follow up with physiotherapy right at the clinic.
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First 2 weeks: leg up
Keep the leg above heart level as much as possible so the swelling goes down. Keep the cast dry. The stitches are removed at the check-up after about 2 weeks.
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After joint replacement
At first no weight is put on the foot; later, in the cast, weight is added gradually. You usually start walking on your own within 3 months, most people return to normal shoes within 3 months, and to undemanding sports after about 6 months.
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After arthrodesis
The bones take about 3 months to fuse. A cast protects the foot the whole time and loading is increased gradually; at first no weight is put on the foot at all. A follow-up image confirms the fusion.
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Work and smoking
You can return to seated work after about 4 weeks if you can keep your leg raised; physically demanding work may have to wait up to six months. Smoking slows bone healing and raises the risk that the bones will not fuse. Stop smoking before the operation and do not smoke until the bones have healed.
06Who operates
Prof. MUDr. Radek Hart, Ph.D., FRCS, MHA
Orthopedic surgeon and trauma specialist of the musculoskeletal system, head physician of HR Clinic. At a clinic in Vienna he is head of the foot outpatient clinic. He sees patients in Znojmo and Vienna; after a consultation in Vienna the procedure can be performed in Znojmo.
More about Prof. Hart Professional website ortho-hart.at
Price We will tell you the price of the procedure at the consultation, depending on the findings and the extent of the procedure.
07Common questions
What patients ask most often
Related articles
Achilles tendon pain: when to pay attention and how to treat it How it works at HR ClinicOther foot and ankle problems
Unstable ankle Flatfoot Achilles tendon Bunion and forefootIs joint replacement or arthrodesis better?
Both can relieve pain well. Replacement preserves part of the movement and puts less strain on neighboring joints, but it suits mainly people who do not want to return to demanding sports. Arthrodesis is more suitable for active people and for an ankle joint that is already almost immobile or markedly deformed. The doctor will recommend what is better for you based on the examination.
Will I limp after arthrodesis?
After a successful arthrodesis most people walk without limping, ride a bike and return to normal activities because the ankle joint stops hurting. The up-and-down movement is partly taken over by the neighboring joints of the foot, so on level ground you can walk in shoes without major problems.
How long does an ankle replacement last?
It depends mainly on how demanding the loads you put on the joint are. Ankle replacements do not yet have as long a proven lifespan as knee replacements. Over time they may loosen or wear; the replacement can then be exchanged or the joint fused.
What examinations are needed before the operation?
The most important is a weight-bearing X-ray; CT or MRI is added as needed. The doctor will explain which procedure suits you based on the examination and images.
How long will I stay at the clinic?
The stay at the clinic lasts 24 hours at most. If you need longer care after a larger operation, the clinic will arrange follow-up rehabilitation care at the Dačice Rehabilitation Institute, covered by public health insurance.
Will the operation hurt?
You feel nothing during the procedure. Operations on the foot and ankle joint are often painful afterward; medication relieves the pain, and keeping the leg raised helps too.
Do I need a referral from my GP?
No. It is enough to book online or by phone.
08Booking
Book an orthopedic consultation
Online or by phone, at the clinic in Znojmo. A referral from a GP is not required.
- +420 515 225 520
- info@webdemo-vorschau.dam-medizin.com
- Kotkova 3974/9c, 669 02 ZnojmoMon: 8:30–15:00 · Tue–Fri: by appointment

