J Korean Knee Soc.  2009 Mar;21(1):51-56.

Irreducible Posterolateral Dislocation of the Knee Joint with Lateral Dislocation of the Patella: A Report of Two Cases

• Koh HS
• Kim HS
• Lee HS

Abstract

Reduction of the knee is impossible if the medial femoral condyle is caught in the medial soft tissue while posterolateral dislocation of the knee happens. Irreducible posterolateral dislocation with buttonholing of the medial femoral condyle through the torn vastus medialis muscle has rarely been reported. Furthermore, such a case associated with patella lateral dislocation has very seldom been reported. We report here on 2 such cases that were treated with open reduction.

Keyword

Knee; Posterolateral dislocation; Vastus medialis; Buttonholing; Patellar lateral dislocation

MeSH Terms

Dislocations
Knee
Knee Joint
Muscles
Patella
Quadriceps Muscle