Pilon fracture fixation is an operation to reconstruct a fracture of the lower end of the tibia (shinbone) where it forms the ankle joint. These are complex, high-energy fractures that involve the weight-bearing surface of the ankle.
Surgery often occurs in two stages. First, an external fixator (a frame with pins outside the skin) is applied to restore length and alignment while swelling settles. After one to two weeks, definitive fixation is performed through incisions over the tibia, using plates and screws to reconstruct the joint surface. Bone graft may be used. The operation takes two to three hours.
Surgery is recommended for displaced pilon fractures to restore the ankle joint surface. Without accurate reconstruction, severe ankle arthritis develops early.
Non-operative treatment may be considered for undisplaced fractures or in patients who are not suitable for surgery. Results are generally less predictable than surgical reconstruction.
CT scanning is essential. Surgery is typically staged — initial external fixation followed by definitive surgery once swelling settles. This approach significantly reduces wound complications.
The aim is to restore the ankle joint surface as accurately as possible. Even with excellent reconstruction, the ankle rarely returns to normal due to the severity of the cartilage injury. Most patients achieve a functional ankle, though some stiffness and discomfort are common.
Very common. The ankle rarely regains full movement after a pilon fracture.
Develops in a significant proportion of patients regardless of treatment quality.
Prolonged ankle and foot swelling.
A major concern with pilon fractures. Staged surgery reduces but does not eliminate this risk.
May require metalwork removal and prolonged antibiotics.
The fracture may fail to heal or heal in a poor position.
Rare but requires emergency fasciotomy.
If severe arthritis develops, ankle fusion may be needed in the future.
General or spinal anaesthesia for both stages.
Non-weight-bearing for eight to twelve weeks. Ankle exercises begin once the wound is healed. Progressive weight-bearing in a boot. Full recovery takes nine to eighteen months. Many patients have some long-term ankle stiffness and discomfort.
Close follow-up with wound checks and X-rays throughout. Long-term monitoring for ankle arthritis.
Operating through very swollen soft tissues causes wound problems. Temporary external fixation allows swelling to settle before definitive reconstruction, dramatically reducing complications.
Possibly, if significant post-traumatic arthritis develops. This depends on the severity of the original cartilage damage.