A contusion is a crushing injury to the tissues, such as a bruise.


Tissue crushing 

The word contusion may refer to both a bruise on the skin, evidenced by discoloration, or a bruise on the bone, evidenced by changes on X-ray, MRI or CT scan. Other soft tissues like muscles and nerves may also be said to be contused if there has been some kind of crushing injury.


Common joint surface problems in the knee

A quick overview of the problems one sees in the white joint cartilage at the end of the bones in the knee joint.



Bone contusion progression from traumatic knee injury: association of rate of contusion resolution with injury severity. Pedersen DR, El-Khoury GY, Thedens DR, Saad-Eldine M, Phisitkul P and Amendola A. Open Access J Sports Med. 2017; 8: 9–15.

Traumatic Bone Bruises in the Athlete’s Knee. DeAngelis JP and Spindler KP. Sports Health. 2010 Sep; 2(5): 398–402.

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