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11 Jul 2025
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Complex Pilon Fracture with Haraguchi II Pattern and Syndesmotic Injury


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Clinical Details

Clinical and radiological findings:  A 49-year-old patient sustained a fall from a climbing wall, resulting in a closed distal tibial fracture with minimal soft tissue injury and no blistering. Radiological assessment revealed a low-energy pilon fracture with syndesmotic involvement. The fracture pattern included three distinct vertical fracture lines: two articular shear fractures and an oblique distal tibial fracture with a posterolateral apex. The articular injury morphology closely resembled a Haraguchi II pattern.

Preoperative Plan

Planning remarks:  The preoperative plan involved addressing the articular surface and stabilizing the fracture using intramedullary nailing. However, upon intraoperative evaluation through a posteromedial approach, the implant strategy was revised to employ AO Basic principles for fracture fixation.

Surgical Discussion

Patient positioning:  The patient was positioned prone on the operating table to facilitate access to the posteromedial aspect of the distal tibia.

Anatomical surgical approach:  A posteromedial approach was utilized, providing direct access to the distal tibia and articular fragments. The surgical exposure allowed for direct reduction of each fracture component: the distal tibia was addressed first, followed by the medial articular fragment, and finally the Volkmann fragment.

Operative remarks: 

The surgeon opted for direct reduction of each fracture line, initially using clamps which were subsequently replaced with 2.4 mm interfragmentary screws in the diaphysis. Three separate anti-glide plates were applied, each positioned over the apex of the respective fracture lines to create a stable construct and prevent shear displacement. The approach adhered to AO Basic principles, simplifying the fixation strategy.

Postoperative protocol:   Postoperative rehabilitation included non-weight bearing status initially, with gradual progression to partial weight bearing as tolerated. Range of motion exercises were initiated early to maintain joint mobility.

Follow up:   Not specified.

Orthopaedic implants used:   2.4 mm interfragmentary screws, anti-glide plates.

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