Views: 0 Author: Site Editor Publish Time: 2026-09-16 Origin: Site
Introduction
Pilon fractures, also known as tibial plafond fractures, are complex distal tibial injuries that involve the weight-bearing surface of the ankle joint. They are commonly caused by high-energy axial loading, such as motor vehicle accidents, falls from height, and sports-related trauma. Because the distal tibia is covered by relatively thin soft tissue, high-energy Pilon fractures are frequently associated with extensive swelling, fracture blisters, skin compromise, metaphyseal comminution, and severe intra-articular damage.
The primary goals of surgical treatment are to restore the tibial length and alignment, reconstruct the ankle joint surface, restore the relationship between the tibia and talus, and obtain stable fixation while minimizing additional soft-tissue injury.
For high-energy Pilon fractures, immediate definitive open reduction and internal fixation (ORIF) may not be appropriate because severe swelling and soft-tissue injury substantially increase the risk of wound complications. A staged treatment strategy, usually involving temporary external fixation followed by definitive fixation after soft-tissue recovery, remains an important treatment concept.
The choice of surgical approach should not be based simply on surgeon preference. Preoperative CT is essential for understanding the fracture pattern, identifying the major articular fragments, evaluating posterior and anterior fracture lines, and selecting the approach that provides the most direct access for reduction.
This article reviews seven commonly used surgical approaches for Pilon fractures, including their indications, exposure characteristics, fixation strategies, and major limitations.
Pilon fractures are three-dimensional injuries. The fracture may involve the anterior, posterior, medial, lateral, and central portions of the distal tibial plafond.
A single surgical approach may provide excellent visualization of one column while providing limited access to another.
For example:
The anteromedial approach provides excellent access to the medial column and anterior plafond.
The anterolateral approach provides better access to the lateral column and Tillaux-Chaput fragment.
The posterolateral approach provides direct access to posterior and posterolateral fragments.
The posteromedial approach is useful for posterior and medial fracture components.
More complex patterns may require combined approaches.
Current literature emphasizes that the surgical approach should be selected according to the fracture reduction strategy and location of the major fracture lines, rather than choosing an approach simply because a particular plate is planned.
The minimally invasive medial approach can be considered for selected Pilon fractures in which the major fracture components can be reduced indirectly and the soft-tissue condition makes extensive exposure undesirable.
The patient is positioned supine, and manual or external-fixator-assisted traction can be used to restore length and alignment.
If the fibular fracture is relatively simple, fibular reduction and fixation may be performed first. Restoring the fibular length can help improve distal tibial alignment and provide additional stability during tibial reconstruction.
A small oblique incision is typically made near the tip of the medial malleolus. The incision can be extended proximally or toward the joint when limited direct reduction of an intra-articular fracture line is required.
A distal tibial plate can then be introduced through a subcutaneous, subperiosteal tunnel and advanced proximally using a minimally invasive plate osteosynthesis (MIPO) technique.
The distal end of the plate should be positioned carefully under fluoroscopic guidance. Temporary Kirschner wires can be used to secure the plate while the surgeon evaluates:
Tibial length
Coronal alignment
Sagittal alignment
Rotation
Distal tibial joint orientation
If a mild coronal deformity remains, a conventional non-locking screw can sometimes function as a reduction screw, drawing the bone toward the plate.
Once alignment is satisfactory, locking screws can be inserted alternately from the proximal and distal segments.
The holes located directly at the fracture level are generally left empty when a bridge-plating concept is being used.
The minimally invasive medial approach may provide:
Reduced soft-tissue dissection
Preservation of fracture biology
Smaller surgical incisions
Effective bridge plating for selected fracture patterns
It is less suitable when direct visualization and anatomical reconstruction of extensive intra-articular comminution are required.
The anteromedial approach is one of the traditional approaches for Pilon fracture fixation.
It provides good exposure of:
The medial column
Anterior plafond
Medial malleolus
Anteromedial joint surface
It is particularly useful for fractures in which the major fracture line exits anteriorly or medially.
The patient is positioned supine on a radiolucent operating table. The incision begins near the medial malleolus and curves toward the anterior aspect of the ankle before continuing proximally along the subcutaneous border of the tibia.
During superficial dissection, the saphenous vein and saphenous nerve branches should be identified and protected.
The extensor retinaculum is exposed, and the approach is developed around the tibialis anterior tendon while preserving its tendon sheath whenever possible.
Simple articular split fractures can be reduced with:
Lag screws
Temporary Kirschner wires
A small antiglide or neutralization plate
For impacted articular fractures, the depressed osteochondral fragments can be elevated and provisionally stabilized.
Residual metaphyseal voids may require structural support using autologous or other bone grafting materials, depending on the defect and reconstruction strategy.
Fluoroscopy is used to confirm restoration of the joint surface, tibial alignment, and hardware position.
The anteromedial approach provides relatively broad exposure of the anterior and medial plafond and is useful for medial-column fixation.
Its main limitation is restricted visualization of the anterolateral Tillaux-Chaput fragment and lateral column. Excessive medial soft-tissue dissection can also increase wound-healing concerns.
The anterolateral approach is particularly useful for Pilon fractures involving the lateral column and anterolateral plafond.
Common indications include:
Anterolateral fracture patterns
Tillaux-Chaput fragments
Lateral column comminution
Valgus-type distal tibial deformity
Pilon fractures requiring lateral buttress or anterolateral plating
Compared with the anteromedial approach, the anterolateral approach provides better access to the lateral plafond and syndesmotic region. It may also allow treatment of an associated fibular fracture through the same incision in selected cases.
The incision is usually placed between the fibula and tibial crest and extends distally toward the ankle.
The superficial peroneal nerve and its branches must be carefully identified and protected.
The anterior compartment is gently mobilized to expose the distal tibia.
The anterolateral fragment, particularly the Tillaux-Chaput fragment, can be mobilized to improve visualization of the central impacted plafond.
The joint surface is reconstructed sequentially, with temporary Kirschner wires maintaining the reduction.
When the posterior or central plafond cannot be adequately reduced indirectly, additional exposure or a posterior approach may be required.
A distal tibial anterolateral locking plate can then be positioned along the lateral surface of the distal tibia.
The anterolateral approach provides:
Excellent access to the lateral column
Direct visualization of the Tillaux-Chaput fragment
Access to the anterior plafond
The possibility of treating selected fibular fractures through the same incision
Relatively favorable soft-tissue characteristics compared with extensive medial exposure
The medial column is difficult to visualize through this approach. Complex medial comminution or varus-type injuries may therefore require an additional medial or posteromedial approach.
The extensile anterior approach is designed for highly complex Pilon fractures in which the distal tibial articular surface is extensively fragmented and both medial and lateral columns require direct visualization.
It may be considered for fractures in which the articular block is essentially separated from the tibial shaft and the plafond contains extensive multi-column comminution.
Unlike a limited anteromedial or anterolateral approach, the extensile approach can provide broad exposure of the anterior ankle and both sides of the distal tibial plafond.
However, it should not be used routinely for simpler fracture patterns.
The incision begins near the distal medial malleolus and crosses the anterior ankle before turning proximally along the distal tibia.
A full-thickness skin flap is developed carefully.
The extensor retinaculum is opened while protecting the tibialis anterior tendon and its sheath.
The ankle joint capsule is opened to expose the talar dome and distal tibial plafond.
A systematic reduction strategy is essential.
A commonly used sequence is:
Identify the major articular fragments.
Reduce the Tillaux-Chaput or lateral column fragment when appropriate.
Restore the posterior articular surface.
Reconstruct the central impacted region.
Reduce the medial column.
Connect the reconstructed articular block to the proximal tibial segment.
Restore tibial length and alignment.
Apply definitive fixation.
Kirschner wires are frequently used for provisional stabilization before definitive screws and plates are inserted.
For fractures extending proximally, plates may be introduced through the open distal exposure and advanced subcutaneously toward the proximal tibia.
This approach can provide extensive anterior visualization for complex multi-column fractures.
The major concern is soft-tissue morbidity. The larger exposure can increase wound-healing problems, particularly in patients with severe swelling, compromised skin, diabetes, smoking history, or significant soft-tissue injury.
Therefore, careful patient selection and soft-tissue timing are essential.
The posterolateral approach is particularly useful when the Pilon fracture contains a substantial posterior or posterolateral fragment that cannot be adequately reduced through an anterior approach.
It provides direct access to:
Posterior distal tibia
Posterolateral plafond
Volkmann-type fragments
Posterior fibula
Posterior syndesmotic region
The posterolateral approach is commonly used for posterior column reconstruction and can also facilitate posterior buttress plate fixation.
Depending on the fracture pattern and whether an anterior approach is also required, the patient may be positioned prone or in a lateral position.
If a combined anterior and posterior strategy is planned, surgical sequencing and patient repositioning should be carefully considered.
The incision is generally placed between the Achilles tendon and the posterior border of the fibula.
The sural nerve must be identified and protected.
The interval between the peroneal muscles and the flexor hallucis longus can provide access to the posterior distal tibia.
The posterior tibial neurovascular structures remain medial and should be protected.
Posterior fracture fragments can be directly mobilized and reduced.
For a displaced posterior column fragment, direct reduction followed by posterior buttress plating can provide mechanical support against posterior displacement and tibial shortening.
This approach is particularly valuable when the posterior fragment is large, displaced, impacted, or associated with posterior metaphyseal-diaphyseal comminution.
The posterolateral approach offers:
Direct visualization of posterior fracture fragments
Direct reduction of posterior column injuries
Access for posterior buttress plating
Possible simultaneous treatment of selected fibular fractures
It provides limited visualization of the anterior plafond.
Therefore, a posterolateral approach alone may not be sufficient for fractures with extensive anterior or central articular comminution.
Posterior approaches also require careful management of the sural nerve and surrounding soft tissues.
The posteromedial approach provides direct access to the posteromedial distal tibia and is particularly useful for fractures with a substantial posteromedial fragment.
It can be considered when:
The posteromedial column is significantly displaced
Posterior tibial shortening needs to be controlled
A posterior buttress plate is required
The fracture extends into the medial posterior plafond
Posterior structures cannot be adequately addressed through an anterior approach
The posteromedial approach is particularly relevant in selected complex Pilon fractures because posterior column fixation can improve control of the posterior fragment.
The incision is placed along the posteromedial aspect of the distal tibia.
Important structures in this region include the:
Posterior tibial tendon
Flexor digitorum longus
Tibial nerve
Posterior tibial artery and veins
These structures must be carefully identified and protected.
The fracture is exposed through the appropriate interval, allowing direct manipulation of the posteromedial fragment.
The posteromedial fragment can be reduced directly and provisionally stabilized with Kirschner wires.
Depending on fracture morphology, a posteromedial buttress plate can then be applied.
For highly comminuted fractures, the posterior reconstruction can be combined with an anterior or anterolateral approach.
Recent comparative evidence suggests that posteromedial-related approaches can provide favorable functional and healing outcomes in selected Pilon fracture populations, although the evidence remains heterogeneous and should not be interpreted as establishing one universally superior approach.
The posteromedial approach provides direct access to:
Posteromedial fragments
Posterior column
Medial posterior plafond
Posterior buttress fixation
The anterior and anterolateral plafond remain difficult to visualize.
Careful protection of the posterior tibial neurovascular structures is essential.
For highly complex Pilon fractures, a single surgical approach may not provide sufficient visualization or fixation control.
Combined approaches can therefore be considered when the fracture involves multiple columns and cannot be reconstructed adequately through one incision.
Common combinations include:
Anterolateral + anteromedial
Anterolateral + posteromedial
Anteromedial + posterolateral
Posterolateral + posteromedial
Anterior + posterior approaches
The specific combination should be dictated by the fracture morphology identified on CT.
Combined approaches may be useful when there is:
Extensive three-column involvement
Severe anterior and posterior articular fragmentation
A large displaced posterior fragment
Significant medial and lateral column displacement
Metaphyseal-diaphyseal dissociation
A fracture pattern that cannot be reduced adequately through one incision
The major advantage is direct access to multiple fracture components.
However, additional incisions also increase soft-tissue dissection, operative complexity, and the need for careful incision planning.
Adequate spacing between incisions and preservation of the intervening skin bridge are important considerations.
A recent network meta-analysis of 17 studies involving 1,054 patients found that different approaches produced different patterns of functional, healing, operative-time, blood-loss, and complication outcomes, but the authors emphasized that approach selection should remain individualized according to fracture pattern, soft-tissue condition, and surgical objectives.
The most appropriate approach should be determined from the fracture anatomy rather than the plate alone.
A practical decision-making process includes the following steps.
Preoperative CT should identify:
Anterior fracture lines
Posterior fracture fragments
Tillaux-Chaput fragment
Medial column involvement
Lateral column involvement
Central articular impaction
Metaphyseal comminution
Fibular fracture morphology
CT-based planning can help surgeons select an approach that provides direct access to the most important fracture fragments.
The most important fragment is not necessarily the largest fragment.
Instead, surgeons should identify the fragment that provides the best reference for reconstructing the remaining articular surface.
The surgical approach should then allow direct visualization and manipulation of this critical fragment.
Soft-tissue status is a major determinant of timing and approach.
Patients with:
Severe swelling
Fracture blisters
Skin necrosis
Open wounds
Significant soft-tissue contusion
may require staged treatment.
Temporary external fixation can restore length and alignment while allowing the soft tissues to recover before definitive fixation.
Simple or less-comminuted fractures may be treated through one approach.
Complex AO/OTA type C fractures may require multiple approaches when direct reduction cannot otherwise be achieved.
However, using multiple approaches simply to increase exposure is not necessarily beneficial because additional soft-tissue stripping may increase wound-healing concerns.
For high-energy Pilon fractures, soft-tissue management is as important as fracture reduction.
A commonly used staged protocol includes:
The initial procedure focuses on:
Restoring limb length
Correcting gross deformity
Protecting soft tissues
Maintaining alignment
Allowing swelling to decrease
Once temporary alignment has been restored, CT can provide a clearer representation of the fracture pattern and help determine the definitive surgical approach.
Definitive fixation is performed once the soft tissues have recovered sufficiently.
The objective is to achieve:
Anatomical or near-anatomical joint reconstruction
Restored mechanical alignment
Stable fixation
Appropriate metaphyseal support
Minimal additional soft-tissue injury
This staged philosophy has become an important principle in the management of severe Pilon fractures because aggressive early ORIF through swollen or compromised soft tissue can increase complications.
The fixation construct should correspond to the fracture pattern.
Depending on the injury, surgeons may use:
Anteromedial locking plates
Anterolateral locking plates
Medial buttress plates
Posterior buttress plates
Posteromedial plates
Combination plate constructs
Minimally invasive distal tibial plates
For metaphyseal comminution, bridge plating can preserve fracture biology while maintaining alignment.
For simple articular fragments, lag screws may be used to obtain interfragmentary compression before applying a neutralization or buttress plate.
For osteoporotic bone or metaphyseal comminution, locking plate technology can provide angular stability while minimizing the need for extensive plate-to-bone compression.
Wound complications remain a major concern because the distal tibia has limited soft-tissue coverage.
Even after successful fixation, severe cartilage injury can lead to post-traumatic arthritis.
Residual varus, valgus, procurvatum, recurvatum, or rotational deformity can affect ankle mechanics.
Inadequate restoration of the tibial plafond may increase the risk of long-term joint degeneration.
Deep infection can be devastating and may require implant removal, staged reconstruction, or additional procedures.
Rehabilitation should be individualized according to fracture stability, soft-tissue healing, bone quality, and fixation strength.
Typical goals include:
Soft-tissue monitoring
Edema control
Elevation
Toe and ankle motion when permitted
Thromboembolism prevention according to patient risk
Once soft tissues have healed and fixation is considered stable, gradual ankle range-of-motion exercises can be progressed.
Weight bearing is generally delayed until there is adequate radiographic evidence of fracture healing and the surgeon considers the fixation construct sufficiently stable.
Premature loading may increase the risk of loss of reduction, implant failure, or delayed healing.
There is no single approach that is best for every Pilon fracture.
The choice depends on the fracture morphology, location of the key articular fragments, soft-tissue condition, and planned reduction strategy.
They provide different exposure rather than simply one being universally better.
The anterolateral approach provides better access to the lateral column and Tillaux-Chaput fragment, whereas the anteromedial approach provides broader access to the medial column and anterior plafond.
It is particularly useful for displaced posterior or posterolateral fragments that require direct reduction and posterior buttress fixation.
It can be useful for displaced posteromedial fragments and posterior column injuries, especially when direct posterior fixation is required.
Yes. Complex three-column fractures may require combined approaches when one incision cannot provide adequate reduction and fixation.
However, additional approaches increase soft-tissue demands and should be carefully planned.
Plain radiographs may underestimate the three-dimensional complexity of a Pilon fracture.
CT provides detailed information about fracture lines, articular fragments, central impaction, and column involvement, allowing the surgeon to select an appropriate surgical approach and reduction sequence.
Pilon fracture surgery requires a balance between anatomical reconstruction and soft-tissue preservation.
The seven approaches discussed in this article include:
Minimally invasive medial approach
Anteromedial approach
Anterolateral approach
Extensile anterior approach
Posterolateral approach
Posteromedial approach
Combined or dual-incision approaches
Each approach provides access to a different portion of the distal tibial plafond and has specific advantages and limitations.
The key principle is that the fracture pattern should determine the approach, not the other way around. Preoperative CT, careful analysis of the major fracture fragments, soft-tissue assessment, and an appropriate staged treatment strategy are essential for complex Pilon fractures.
For severe high-energy injuries, restoring the articular surface is only one part of successful treatment. Maintaining soft-tissue viability, restoring alignment, obtaining stable fixation, and minimizing additional surgical trauma are equally important.
As contemporary evidence continues to compare anteromedial, anterolateral, posteromedial, posterolateral, and combined approaches, individualized treatment remains central. Recent comparative research suggests that posterior approaches may offer advantages for selected posterior-column injuries, while combined approaches can be useful for complex multi-column fractures; however, current evidence does not establish one universal surgical approach for all Pilon fractures.
