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Reconstructive technique

Fibula Flap

The fibula is the slimmer of the two bones in the lower leg. Surgeons can move a length of it, with its blood supply and sometimes a patch of skin, to rebuild a jaw or another missing segment of bone.

Fibula Flap
Anaesthesia
General anaesthesia
Hospital stay
Several days, as advised by the team
Back to routine
Gradual, guided by healing
Cost band
See treatment pages
Quick answer

A fibula flap takes a section of the smaller lower leg bone together with the artery that feeds it. Surgeons cut the bone into segments, shape it to the curve of the jaw, fix it with plates and then join its vessels in the neck under a microscope. Because the bone stays alive, it heals and can later hold dental implants.

Key takeaways
  • The fibula flap is the standard technique for rebuilding a jaw, because it supplies living bone of usable length and shape.
  • Weight through the leg travels mainly along the tibia, so a length of fibula can usually be taken without losing the ability to walk.
  • Bone can be cut into segments while its blood supply is kept, which lets surgeons follow the natural curve of a jaw.
  • Since the moved bone remains alive, dental implants can often be placed into it at a later stage.
  • Ankle stiffness, weakness of the big toe and a scar on the outer leg are the usual costs at the donor site.
Osteotomy: An osteotomy is a planned cut through bone that lets a straight segment be angled into a new shape while its blood supply is kept intact.

What the fibula flap is

Two bones run between the knee and the ankle. The tibia carries almost all of the load, while the fibula sits on the outer side and acts mainly as an anchor for muscles and for the ankle joint. That difference is what allows a long piece of fibula to be borrowed for reconstruction, provided the segments near the knee and ankle are left in place.

Blood reaches the fibula through a vessel that runs alongside it and sends branches into the bone all the way down. Because supply comes from many small branches rather than one point, surgeons can cut the bone into two or three pieces, angle them, and each piece still receives blood. That is how a straight bone becomes the curve of a lower jaw.

A paddle of skin from the outer calf can travel with the bone when lining or external cover is also missing. The leg is then closed directly if the paddle is narrow, or resurfaced with a skin graft when it is wider, which leaves a visible patch on the outer calf.

Where the fibula flap is commonly used
✦Rebuilding the lower jaw after removal of an oral cancer or a large tumour
✦Replacing jaw bone destroyed by severe infection or by damage following radiotherapy
✦Jaw loss after road traffic trauma or other high energy injury
✦Large gaps in the arm or leg bones left after tumour surgery
✦Long standing failure of a fracture to unite where earlier bone grafts have not worked
✦Rebuilding the upper jaw so the face keeps its support and shape

Warning signs to report after surgery

Calf pain that keeps rising and feels far worse than the wound appears to justify.
Toes turn numb, pale or cold, or you cannot lift the big toe.
Skin paddle in the mouth or on the face becomes dusky, swollen or cold.
Fever, foul discharge or a plate becoming visible through the wound.

When the fibula flap is the right choice

It suits people who have lost a segment of bone and need living bone rather than a graft, and whose leg circulation can spare the fibula safely.

May be suitable when
✦A jaw or long bone segment is missing and simple grafting is unlikely to hold.
✦Dental rehabilitation is planned, since living bone accepts implants better than a graft.
✦Scans confirm three healthy arteries in the leg, so removing the fibula will not starve the foot.
✦You are fit for lengthy surgery and able to take part in walking and jaw exercises afterwards.
May not be suitable when
✦Leg artery disease, a previous fracture or earlier surgery has left the fibula or its vessels unreliable.
✦Tobacco use continues, which slows bone healing and threatens the joined vessels.
✦Diabetes, nutrition or infection remain poorly controlled at the time surgery is planned.
✦You need only a small bone gap filled, where a simple graft would be far less demanding.

How the operation is carried out

01
Planning and imaging

Scans of the jaw and the leg vessels guide the plan. Models or computer planning are sometimes used to work out where the bone cuts fall and how the plate will sit before surgery begins.

02
Removing the diseased bone

One team opens the neck and jaw, removes the affected segment with a safe margin and prepares an artery and a vein in the neck to receive the flap.

03
Raising the fibula

A second team works on the outer calf, freeing the required length of bone with its vessel and, when needed, a skin paddle, while leaving the ends near the knee and ankle untouched.

04
Shaping and fixing

Bone is cut into angled segments and held to the remaining jaw with titanium plates and screws, restoring the outline of the lower face before the vessels are divided.

05
Microsurgery and closure

Vessels are joined in the neck under a microscope and flow is confirmed. Drains are placed, the leg is closed or grafted, and a splint supports the ankle.

Recovery at the donor and recipient sites

Day 1 to 3

Flap checks continue day and night. Feeding usually goes through a tube at first so the mouth can rest, and the leg is raised in a splint to control swelling.

Week 1 to 2

Drains come out and mouth care begins in earnest. Standing and walking start with a physiotherapist and a frame, and any skin graft on the calf is inspected.

Week 6

Bone healing is checked with imaging, and diet often moves from liquids towards soft food. Walking improves steadily, though the ankle may still feel stiff at the end of the day.

Month 6 and beyond

Once the bone has united, dental implants and a prosthesis can be planned. Scars soften on both the neck and the calf, and ankle movement keeps improving with exercises.

What this technique can achieve

✦Restores the framework of the lower face so the chin, lip and jawline keep their support.
✦Provides living bone that heals to the remaining jaw rather than slowly being absorbed.
✦Creates a foundation strong enough for dental implants, which brings chewing back.
✦Carries skin along with the bone when lining or facial skin is missing as well.
✦Uses a donor site far from the head, so two teams can operate at the same time.

What results are realistic

Facial shape and jaw continuity usually improve a great deal, and chewing can return once teeth are rebuilt. Speech and swallowing often need therapy, especially after radiotherapy. Some numbness of the lip and chin is common, and the reconstructed jaw rarely feels exactly like the original. On the leg, walking normally returns, although a scar, a numb patch and occasional ankle tightness remain for many people.

Risks and possible problems

This is one of the longest reconstructive operations, and the risks span both the head and the leg.

Clotting at the joined vessels can threaten the flap and may require urgent surgery.
Bone may fail to unite, or a plate may loosen or become exposed and need removal.
The calf can develop tightness, weakness of the big toe, numbness or a slow healing graft.
Infection in the mouth or neck can delay healing, particularly after radiotherapy.
Long anaesthesia carries risks to the chest and a chance of clots forming in the legs.

Caring for the donor and recipient sites

Two very different areas heal at once, so the routine covers the mouth and neck as well as the leg.

✦Follow the feeding plan exactly and keep the mouth clean using the rinses your team prescribes.
✦Keep the leg raised when sitting, and use the splint and walking aid for as long as advised.
✦Do ankle and toe exercises daily once permitted, which limits stiffness later.
✦Stay away from all tobacco and nicotine products, since bone healing suffers badly without that.
✦Attend dental and imaging reviews on time so implant planning is not delayed.

Common myths about the fibula flap

MythRemoving a leg bone means I will not walk again.
In practice

The tibia carries the load. Most people walk unaided once healing is complete, though ankle stiffness and a scar can remain.

MythTeeth are fixed during the same operation.
In practice

Bone must unite first. Implants and a prosthesis are usually planned as separate stages months later, guided by imaging and dental review.

MythA metal plate alone would do the same job.
In practice

A plate without living bone tends to loosen, break or become exposed over time, especially after radiotherapy.

MythThe jaw will look exactly as it did before.
In practice

Shape and support improve markedly, yet contour, sensation and movement differ from the original jaw.

Why families choose Elegance Clinic

Elegance Clinic in Surat plans jaw reconstruction with the eventual teeth in mind, not just the bone. Families hear the full sequence of stages, with timing and cost, before the first operation is booked.

✦Leg circulation assessed with imaging before the fibula is considered
✦Dental rehabilitation discussed at the planning stage rather than afterwards
✦A written estimate before admission covering surgery, stay and later stages
✦Physiotherapy and speech support arranged as part of the plan
Further reading from independent sources
Cost & insurance

Cost and insurance

A technique page carries no price of its own, because cost follows the treatment the fibula flap is used within. Jaw reconstruction after cancer involves different theatre time, plates, hospital stay and dental stages compared with repair of a long bone gap.

After assessment you receive a written estimate covering each planned stage, and the related treatment page shows the usual band.

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Per procedure
Patients ask

Questions patients ask, answered

These are the questions that come up most often in consultation. If yours is not here, send it on WhatsApp and the team will reply, usually the same day.

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Price belongs to the treatment rather than the technique. Theatre time, plates and screws, hospital stay, imaging and later dental work all contribute. A written estimate covering the planned stages is prepared once assessment is complete.

It is considered safe when scans show the leg has its normal three arteries and the segments near the knee and ankle are left alone. Where circulation is doubtful, a different donor site is chosen instead.

Recovery can vary widely. Early days are spent under close flap monitoring, followed by weeks of walking practice, mouth care and gradual diet progression. Bone healing and dental rehabilitation continue over many months.

Chewing usually improves once bone has united and teeth have been rebuilt on implants or a prosthesis. How much returns depends on how much jaw was removed, on radiotherapy and on tongue and lip movement.

People with poor leg circulation, an earlier leg fracture, ongoing tobacco use, unsettled diabetes or active infection may be advised against it. Those needing only a small gap filled are often better served by a simpler graft.

Reconstruction is commonly carried out at the same sitting as tumour removal, so the jaw is restored immediately. Sometimes it is delayed until margins are confirmed or until radiotherapy planning is settled by the wider team.

The jaw and mouth are examined, the leg pulses are checked and imaging is arranged. Alternatives, risks, the number of stages, dental options and the estimate are explained so the whole path is clear before any decision.

Related

Related pages

Where it is used

Treatments that use this technique

Seeing patients from across the city and beyond: read about the practice on the plastic surgeon in Surat page, or check what a written estimate covers on the costs and insurance page.

Bring the reports you have. We will tell you honestly what is needed, and when.

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