Open reduction of irreducible posterolateral rotary knee dislocation without sectioning of incarcerated vastus medialis: a case report with video illustration.

Traumatic knee joint dislocations are relatively rare. Most of knee dislocations are reduced by closed manipulation. However occasionally, especially in the case of soft tissue incarceration, closed reduction may not be possible and open reduction is mandatory. This report introduces a case of irreducible posterolateral rotary knee dislocation with interposition of vastus medialis treated through two-staged operations. In this report, we included preoperative magnetic resonance images (MRI), detailed intraoperative descriptions with photographs and video illustration that show the status of an injured knee joint and the effectiveness of the treatment.