Trauma · Foot & ankle

Pilon fracture ORIF

Staged external fixation followed by plate fixation of a high-energy fracture of the distal tibial joint surface.

Overview

Labeled anatomy of the foot showing tarsal bones (calcaneus, talus, cuneiforms, cuboid, navicular), metatarsals, and phalanges.
Foot and ankle anatomy. The foot contains 26 bones: seven tarsals in the back half (including the talus and the heel bone), five metatarsals forming the arch, and fourteen phalanges in the toes. The ankle joint sits between the talus and the two leg bones — tibia and fibula.
Blausen Medical · Wikimedia Commons · CC BY 3.0

A pilon fracture is a break at the bottom of the tibia that crosses into the ankle joint. These are typically high-energy injuries with significant soft-tissue swelling, skin compromise, and joint comminution. Rushing to definitive fixation through swollen skin leads to very high wound-complication rates.

For these reasons, most pilon fractures are managed in two stages: first, a spanning external fixator is placed to restore length and alignment while the soft tissues rest; then, after one to three weeks, definitive plate-and-screw fixation is performed once the skin has calmed down.

Why it's done

Pilon fracture ORIF is typically considered when imaging and the clinical picture together indicate that the fracture will not reliably heal or function without surgical stabilization. Common indications include:

  1. Displaced intra-articular fracture

    Joint step-off accelerates ankle arthritis.

  2. Angulation or shortening of the tibia

    Alignment must be restored for normal walking mechanics.

  3. Open fracture

    Urgent debridement and external fixation.

  4. Associated fibular fracture

    Often fixed at the same time.

  5. Skin compromise

    Delayed-staged fixation minimizes wound complications.

How it works

Stage one is a spanning external fixator placed across the ankle — pins in the tibia above and the foot below, with bars connecting them. Length, alignment, and rotation are restored.

Stage two is definitive fixation once the soft tissues allow. Through carefully planned incisions, the distal tibia is exposed, the joint surface reconstructed with small screws, and a plate or plates applied to the medial and/or anterolateral tibia.

Recovery

Strict non-weight-bearing is typical for ten to twelve weeks. Early ankle motion begins once the wound is stable. Physical therapy focuses on restoring subtalar and ankle motion. Despite good reduction, pilon fractures carry one of the highest rates of post-traumatic arthritis of any extremity injury. Ankle fusion or replacement may become a consideration many years later if symptomatic arthritis develops.

Contact

For questions about this procedure or to schedule an evaluation, call the office at (830) 625-0009 or request an appointment online.

Further Reading

External patient-education references and related OSI pages for additional background: