PMC6349979_01
Open scar at the time of injury.
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The cartilaginous area of the distal femur was fully exposed, but the open wound was not severely contaminated (Figure 1).
CT angiography at the time of injury.
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In spite of posterior knee dislocation, computed tomography angiography found no obvious arterial injury (Figure 2).
Postoperative X-P after external fixation (EF) was applied.
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Surgical debridement, irrigation, and external fixation (EF) were performed (Figure 3).
Radiological evaluation of residual posterior translation of tibia relative
to femur.
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In addition, the posterior translation of the tibia relative to the femur was >10 mm (Figure 4).
Postoperative CT following a reduction which achieved an appropriate
reduction.
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Therefore, surgical debridement and manual reduction under general anesthesia after the temporary release of the EF were performed, which achieved an appropriate reduction (Figure 5).
Intra- and postoperative images when applying a ring-type EF device.
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Thus, 2-mm K wires were inserted to connect the proximal and distal EF devices (Figure 6).
Intra- and postoperative images of MCL reconstruction.
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The soft tissue was closed in layers and valgus instability became negative in both the extension and slightly flex positions (Figure 7).
Clinical images at the time of the latest follow-up examination.
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The patient had sufficiently recovered and returned to work in the construction field (Tegner activity scale score = 5) at 2 years after sustaining the injury (Figure 8).