J Korean Fract Soc.  2020 Jan;33(1):27-31. 10.12671/jkfs.2020.33.1.27.

Concurrent Posterolateral Corner Injury Associated with a Schatzker Type 2 Tibial Plateau Fracture: A Case Report

• Sim JC
• Jung CW
• Nam TS

• KMID: 2468671
• DOI: http://doi.org/10.12671/jkfs.2020.33.1.27

Abstract

Isolated posterolateral corner (PLC) injury associated with a Schatzker type 2 fracture is a very rare combination of injuries. A male who was driving a motor vehicle was injured after a collision accident. The plain radiographs and computed tomography scans of the knee showed a Schatzker type 2 fracture of the tibial plateau, mostly in the anterolateral portion of tibial plateau, and an avulsion fragment on the fibular tip. Magnetic resonance imaging showed no injury to cruciate ligaments, medial collateral ligament, or any meniscal injury. We performed an open reduction operation and internal fixation for treating the fracture. Six months later, he complained of instability. At 11 months later after initial operation, we performed the second operation for stabilizing the PLC. We present here a rare case of an isolated PLC injury associated with a Schatzker type 2 fracture. We discuss the mechanism of injury and review similar cases.

Keyword

Tibial fractures; Missed diagnosis; Therapeutics

MeSH Terms

Collateral Ligaments
Humans
Knee
Ligaments
Magnetic Resonance Imaging
Male
Motor Vehicles
Tibial Fractures

Figure

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  Fig. 1 The anteroposterior (A)/lateral (B) plain radiographs and coronal (C)/sagittal (D) computed tomography showed the lateral tibial plateau (LTP) fracture involving mainly the anterior portion of the LTP.

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  Fig. 2 The postoperative anteroposterior (A) and lateral (B) plain radiographs showed reduction of the lateral tibial plateau fracture.

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  Fig. 3 The coronal magnetic resonance imaging scans showed injury of the popliteus tendon (A; arrow) and biceps femoris avulsion (B; arrow).

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  Fig. 4 The postoperative anteroposterior (A) and lateral (B) plain radiographs showed reconstruction of the posterolateral corner.

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  Fig. 5 Six months after the second operation, the whole standing anteroposterior plain radiograph showed neutral alignment (lines).

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