Dr. Öğr. Üyesi Görkem Kıyak
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Foot & Ankle
Surgical treatment of valgus deformity
What valgus deformity is, when knock-knees or a valgus ankle or foot need surgery, how guided growth, corrective osteotomy and joint replacement differ, approximate costs in Turkey against the UK, US and Germany, a realistic recovery timeline with crutches and physiotherapy, the risks, and how to check an orthopaedic team.
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Surgical treatment of valgus deformity in Turkey: what it is and how it works
A valgus deformity is a bend in a limb in which the part below a joint angles outwards, away from the midline of the body. In the legs it is mainly known as knock-knee (genu valgum), where the knees touch while the ankles stay apart. The same word is used for a valgus ankle or heel and for a bunion, which is a valgus deformity of the big toe. The surgical treatment of valgus deformity restores the alignment of the leg so that body weight passes through the centre of the joint instead of its outer side. This is done either by steering the growth of a child's bone, or by cutting and reshaping the bone of an adult (osteotomy), or by replacing a worn joint when arthritis has set in.
Many valgus legs never need an operation. This guide explains when surgery is considered, how the main operations work, what the evidence says, what it costs in Turkey against the UK, US and Germany, and what recovery asks of you. For the wider choice of orthopaedic care see our orthopedics treatments in Turkey page.
When does a valgus deformity need surgery?
Mild knock-knee is normal in young children and usually corrects itself by the age of seven or eight. Surgery is considered when the deformity is severe or getting worse, when it persists in a teenager, when it causes pain, patellar instability or an obvious gait problem, or when it follows a fracture, rickets, a growth-plate injury or other bone disease. In adults the main reason is pain and early wear on the outer half of the knee: with a valgus leg, load concentrates on the lateral compartment, and over the years the cartilage there thins. Correcting the angle can slow this wear in a younger adult, and it is often discussed as a way to delay a joint replacement.
The decision rests on full-length standing X-rays, which allow the surgeon to measure the mechanical axis of the whole leg and find where the bend actually sits (thigh bone, shin bone, or both). Without that measurement, a plan is guesswork.
Which operation corrects the valgus: guided growth, osteotomy or joint replacement?
The operation depends mostly on age and on whether the joint is still healthy. The three main routes are summarised below.
| Operation | Suits | Typical limits |
|---|---|---|
| Guided growth (tension-band plate on the growth plate) | Children and young teenagers who are still growing | Needs growth left; a second small operation removes the plate |
| Corrective osteotomy (cut and realign the femur or tibia) | Skeletally mature teenagers and adults with a healthy joint | Weeks on crutches; bone must heal; hardware may be removed later |
| Total knee replacement | Older adults with advanced arthritis and a valgus knee | Not for a young, active person with an intact joint |
Our guides to tibial osteotomy, bone deformity correction surgery and total knee replacement go into each route in more depth.
How does guided growth correct knock-knees in a growing child?
Bones lengthen at the growth plates near their ends. In guided growth, the surgeon places a small metal plate and two screws across the inner side of the growth plate through a small incision. The plate slows growth on the inside while the outside keeps growing, so the leg straightens gradually over about 12 to 24 months as the child grows. The operation is short, usually done under general anaesthesia, and children walk on the leg straight away. The plate is removed once the leg is straight, to avoid overcorrection. It works only while enough growth remains, which is why timing is checked with a bone-age X-ray.
How is a corrective osteotomy performed?
In adults and teenagers whose growth has finished, the bone is cut near the knee and moved to the correct angle. When the deformity sits in the thigh bone, the surgeon usually performs a distal femoral osteotomy; when it sits in the shin bone, a proximal tibial osteotomy. The steps are:
- Planning on a full-length X-ray or a 3D model to choose the exact angle of correction.
- General or spinal anaesthesia and a cut of about 8 to 12 cm on the side of the knee.
- A controlled bone cut, a wedge opened or closed, and the new position checked under X-ray.
- Fixation with a locking plate and screws, sometimes with a bone graft in the gap.
The operation takes one to two hours. Patients stay in hospital for about two to four nights.
Does surgery for valgus deformity work? What the evidence says
For children, guided growth is a well-established method and is widely reported to straighten the leg in most patients who are treated while they still have enough growth. Overcorrection and rebound are known, which is why follow-up is needed. For adults, corrective osteotomy for a valgus knee has been reported to relieve pain and to postpone joint replacement in selected patients, but the evidence is mainly from case series and is less extensive than for the more common varus knee. Results are least predictable in older patients with advanced arthritis; in that group a joint replacement is more often advised. A trustworthy surgeon will explain the evidence for your age and joint condition rather than promising a perfectly straight leg.
Surgical treatment of valgus deformity cost in Turkey compared with the UK, US and Germany
The figures below are approximate ranges for one limb, not hospital quotes. Each hospital confirms its own price in a written quote after it has seen your X-rays.
| Country | Approximate cost range |
|---|---|
| Turkey | €3,500 – €9,500 |
| United Kingdom | €8,000 – €19,000 |
| United States | €15,000 – €45,000 |
| Germany | €7,000 – €17,000 |
What changes the surgical treatment of valgus deformity price: the operation (a guided-growth plate costs far less than a double-level osteotomy), whether one or both legs are treated, the implant used, the need for a bone graft, the length of the hospital stay and whether later hardware removal is included. A written quote should list the consultation, imaging, anaesthetist, the operation, hospital nights, implants, crutches, medication and physiotherapy. Ask whether hardware removal and any follow-up X-rays are included.
Who is a good candidate, and who is not?
Good candidates for guided growth are children with a clear, progressive angle and enough growth left. Good candidates for osteotomy are adolescents and adults with a measured deformity, outer-knee pain or patellar instability, and a joint that is still healthy. Surgery is less suitable if you smoke and cannot stop (smoking slows bone healing), if the knee already has advanced arthritis in all compartments, if you have uncontrolled diabetes or poor circulation, or if you cannot manage weeks on crutches. A valgus knee that does not hurt and does not wear the joint may simply be observed.
Recovery after valgus correction: week by week
For guided growth, children usually walk the same day, return to school within a week and avoid contact sport for four to six weeks. After an osteotomy, recovery is longer because the bone has to heal.
- Weeks 0 to 6: partial or protected weight bearing with crutches, as the surgeon instructs, and early knee movement with a physiotherapist.
- Weeks 6 to 12: X-ray check, then gradual loading as the bone unites.
- Months 3 to 6: walking without aids, strengthening and a return to light sport.
- Months 9 to 12: return to higher-impact activity once the surgeon agrees; plate removal may be discussed.
Plan to stay in Turkey for about seven to ten days after an osteotomy so that the wound and swelling can be checked before the flight. The surgeon will say when it is safe to fly, and a blood-clot prevention plan is usual. Desk work is often possible after two to three weeks.
What do the results look like, before and after?
A before-and-after comparison is judged on the standing X-ray, not on photographs. A successful result moves the load line back to the centre of the knee, and the legs look straighter when you stand with the feet together. Photographs show the change less clearly than X-rays do, because swelling, muscle bulk and rotation of the leg all alter the appearance. The scar is a line on the side of the knee that fades over a year. A small residual angle is common and acceptable if the alignment is functionally sound; the aim is a leg that carries weight evenly, not a perfect geometric line.
What are the risks of surgical correction of valgus deformity?
As with any orthopaedic operation, risks include infection, blood clots, bleeding and anaesthetic complications. Specific risks are delayed or failed bone healing (non-union), loss of correction, overcorrection (a varus leg after guided growth), irritation from the plate, stiffness of the knee, and injury to nerves or vessels near the bone cut, which is uncommon. Hardware sometimes needs to be removed because of discomfort. The NHS and the American Academy of Orthopaedic Surgeons publish patient information on osteotomy and on corrective surgery in children, and your surgeon should go through each risk before you consent.
How to choose a surgeon and hospital, and the questions to ask
Check that the surgeon is an orthopaedic specialist with experience in limb deformity or paediatric orthopaedics, that the hospital has an anaesthetist, X-ray guidance and a physiotherapy team, and that you receive a written plan and price before you pay a deposit. Red flags are an operation recommended without full-length standing X-rays, a promise of a perfect result, and no plan for care after you fly home. Questions to ask:
- Where exactly does the deformity sit, and how many degrees will you correct?
- Which operation do you recommend, and what are the alternatives?
- Will the hardware be removed, and is that included in the price?
- How long must I stay in Turkey, and how will my physiotherapy continue at home?
Read how our process works, then send your X-rays through our free quote page so that a hospital can reply with a written plan.
Conditions treated with Surgical Treatment of Valgus Deformity
Hospitals with Orthopedics in Turkey
Frequently asked questions
Valgus deformity is an outward angle of a limb below a joint. In the knee it appears as knock-knee, and the same term covers a valgus ankle, heel or big toe. It may be normal in young children and persist, or follow injury or disease.
Surgery is considered when the angle is severe or worsening, persists in a teenager, or causes pain, patellar instability or early outer-knee wear. Mild knock-knee in young children often corrects with growth and is only observed.
Approximate ranges are €3,500 to €9,500 in Turkey, against about €8,000 to €19,000 in the UK. The price depends on the operation, implants, hospital stay and whether hardware removal is included, and is confirmed in a written quote.
A small plate and two screws are placed across the inner growth plate so the outside grows faster and the leg straightens over a year or two. It suits growing children, and the plate is removed once the leg is straight.
Expect about six weeks on crutches with protected weight bearing, X-ray checks at six and twelve weeks and a return to light sport at three to six months. Desk work is often possible after two to three weeks.
You are under anaesthesia during the operation. Afterwards there is pain and swelling, controlled with prescribed medication and nerve blocks, and it eases over two to three weeks. Physiotherapy starts early to keep the knee moving.
After guided growth, the plate is removed once the leg is straight. After an osteotomy, the plate is only removed if it irritates you, usually after a year or more. Ask whether removal is included in the quote.
Loss of correction or regrowth of the angle can occur, especially in children who are still growing, which is why regular X-ray follow-up is arranged. Adults who heal fully usually keep the correction.
Osteotomy realigns the bone and keeps your own joint, and suits younger people with healthy cartilage. Replacement swaps worn surfaces for implants and suits older adults with advanced arthritis.
For guided growth about three to five nights is usual. After an osteotomy, plan seven to ten days so the surgeon can check the wound and your mobility before you fly.
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