Tibiofibular synostosis after Weber-C fracture

Miscellaneous

Description of patient (type of occupation, indication of age, intensity of sport):

A 32 year old male.

History and previous treatment:

In 2014 sport injury. Weber-C type right ankle fracture. ORIF, after conventional rehabilitation period good ankle motion, return to sport activity. Implant removal after 7 months.

Current complaints:

After 1 year of removal surgery good function, but painful bump up to the ankle joint, especially after sport activity.

Physical examination:

No impingement, no instability, no synovitis, full ROM, no neurovascular abnormality, but hard, sensible prominence up to the syndesmotic area.

Radiology:

X-ray:
[Picture 2 + 3]: X-rays show tibiofibular synostosis.

[Picture 3 + 4]: Additional investigation (CT/MRI):

The painful area signed with arrow on CT 3D reconstruction.

Images:

Case summary:

Two 2 years after lateral ankle ORIF, and implant removal, good ankle joint function but tenderness over the tibiofibular synostosis.

Question(s) to this case:

What to do with this patient?
The operation and removal of synostosis is a good therapeutic option?
Is this syndesmotic junction stable enough after the removal of the synostosis?

Expert:

The synostosis itself is not the cause of the complaints, but in this case apparently the prominence.
You could remove the prominence but retain the synostosis by creating a new synostosis just below the old one. Use cancellous bone graft from the iliac crest and a 3 small tubular plate.

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