Data Sheet 191

Term Charcot Foot
Short Definition

Charcot foot is a complication of diabetes that almost always occurs in those with neuropathy (nerve damage). When neuropathy is present, the bones in the foot become weakened and can fracture easily, even without there being any major trauma. As the neuropathy is present, the pain goes unnoticed and the person continues to walk on it. This can lead to severe deformities of the foot. As this can be very disabling, early diagnosis and treatment is vitally important.

Another way to consider it - imagine spraining your ankle and not knowing you have done this. You will continue to walk on it - imagine the damage that this would do. This is what happens in a Charcot foot.

Long Definition Charcot foot is the term given to neurogenic arthropathy that affects the joints in the foot. Neurogenic arthropathy is a rapidly progressive degenerative arthritis that results from damaged nerves (neuropathy). In Charcot foot, pain perception and the ability to sense the position of the joints in the foot are severely impaired or lost, and muscles lose their ability to support the joint (s) properly. Loss of these motor and sensory nerve functions allow minor traumas such as sprains and stress fractures to go undetected and untreated, leading to ligament laxity (slackness), joint dislocation, bone erosion, cartilage damage, and deformity of the foot. The bones most often affected are the metatarsals and the tarsals, located in the forefoot and midfoot, respectively.`
References
141,142, 144 158,160, 163, 164f , 23, 84, 156, 167, 169

 

Graphics
Links http://www.diabetic-foot.com.au/charcots.htm