Knee Surg Relat Res.  2019 Mar;31(1):72-75. 10.5792/ksrr.18.050.

Irreducible Knee Dislocation with Vastus Medialis Muscle Interposition

• Al-Juhani
• Ahmed B
• AlMugren T

• KMID: 2446724
• DOI: http://doi.org/10.5792/ksrr.18.050

Abstract

Knee dislocation is one of the rare orthopedic emergencies that require special management with an annual incidence rate of less than 0.02%. Knee dislocations are classified by Kennedy, according to the direction of tibial dislocation in relation to the femur, as anteromedial, posteromedial, anterolateral, and posterolateral. Operative intervention and multi-ligament reconstruction are usually required in knee dislocation. Interposition of the vastus medialis inside the joint of a dislocated knee is an uncommon scenario where reduction becomes impossible. In this report, we present a case of irreducible knee dislocation with vastus medialis muscle interposition. Before reduction, we performed arthroscopy of the knee and removal of the interposed muscle to prevent extravasation of the fluid by sealing the torn capsular area.

Keyword

Knee; Dislocation; Vastus medialis; Interposition

MeSH Terms

Arthroscopy
Dislocations
Emergencies
Femur
Incidence
Joints
Knee Dislocation*
Knee*
Orthopedics
Quadriceps Muscle*