Vascular Claudication
	Paresthesia

Vascular conditions occur when the vessels that circulate the blood supply for the anatomical structures of the spine are obstructed (pinched or blocked) and, as a result, fail to maintain their normal structure and/or function. Vascular claudication - a limp and/or lameness in a person's walk - and paresthesia are two examples of vascular conditions that affect the adult spine.

Vascular Claudication
Claudication, or leg pain while walking, can occurs as a result of either an inadequate blood supply to the legs or compression of the spinal canal. Although some claudication results from certain spinal conditions (neurogenic), such as stenosis, it also may be attributed to changes in blood vessels (vascular).

Paresthesia
When a nerve root is pinched, the compression may impede the blood supply to the nerve, making it give off abnormal signals (a tingling or pins-and-needles sensation), called paresthesia. The term paresthesia is derived from the Latin words para (abnormal) and -esthesis (feeling).

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