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A 42-year-old member asked:

Can a dislocated knee cause a fracture in the femur and bone bruising?

2 doctor answers2 doctors weighed in
Dr. John Michalski
Orthopedic Surgery 36 years experience
Dislocated knee: Differentiate between dislocated patella and a dislocated knee--but, yes, both can cause fracture and bone bruise. Higher energy injury may be the culprit.
Dr. Bruce Prager
Sports Medicine 42 years experience
Dislocated Knee: A dislocated knee is when the tibia and femur dislocate. This is a true orthopedic emergency. More common is a patella that is dislocating or subluxating. If the knee truely dislocated then it usually occurs from high speed trauma and a fracture can occur. However, usually the ligaments rupture and i cannot recall seeing a femur fracture. Now bone edema or contusion will invariably occur.

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Last updated Nov 16, 2012

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