Decreased or absent popliteal artery pulse

Introduction The radial artery is located deeper, adjacent to the femoral condyle and the posterior portion of the knee joint capsule. The outer edge of the semitendinosus muscle is obliquely outward, and the femoral condyle is horizontally located in the posterior middle of the knee, and then vertically down to the lower edge of the diaphragm, which is divided into the anterior iliac artery and the posterior tibial artery. The former enters the anterior region of the calf through the upper edge of the interosseous membrane, and the latter passes through the deeper part of the soleus tendon to the posterior region of the calf. In addition to the distribution of muscle branches in the adjacent muscles, there are five joint branches, namely the internal and external laparoscopic arteries, the middle knee artery and the inferior and lateral arteries of the knee, all of which are involved in the formation of the knee arterial network. The upper part of the radial artery is closely related to the femoral condyle.

Cause

When a radial aneurysm occurs, the brachial artery pulsation weakens or disappears. When the femoral condyle fractures, the radial artery may also be injured.

an examination

Related inspection

Blood oxygen content arterial oxygen partial pressure (PaO2) oxygen partial pressure arterial blood oxygen content (CaO2)

When the radial artery is not detected in the radial artery position or the brachial artery is weak, the radial artery beat is weakened or disappeared.

Differential diagnosis

The pulsation of the dorsal and posterior tibial artery is weakened: Diabetic foot refers to the disease state in which the lower limb protection function is reduced due to neuropathy in the foot of diabetic patients, and the disease state of ulcer and gangrene occurs due to microvascular dysfunction caused by insufficient perfusion of arteries. When the back of the foot and the posterior tibial artery are weakened or disappeared, the local skin is malnourished, the skin temperature is lowered, and the color is abnormal. The finger is pale when the gum is high, the sagging is purple-red, and the foot is prone to chronic ulcer. Diabetic foot is a serious complication of diabetes. It is one of the important causes of disability and even death in diabetic patients. It not only causes pain to patients, but also adds huge economic burden.

The dorsal artery pulsation disappears: lower extremity atherosclerosis is often accompanied by numbness of the extremities, and the pulsation of the dorsal artery of the foot disappears. The disease is more common in middle-aged and elderly people, often accompanied by a history of hypertension. The early symptoms are mainly intermittent claudication, and the pain at rest is the manifestation of severe ischemia of the lower extremities, often accompanied by numbness of the extremities. Acromegaly ulcers and gangrene can also occur in the advanced stage. Physical examination revealed a decrease in extremity skin temperature, a stenosis, or a weakening or disappearance of the distal arterial pulsation of the occlusion artery. Doppler ultrasound and angiography can be used to determine the location, extent and extent of the disease and contribute to the choice of surgical approach.

Carotid pulsation weakened or disappeared: one of the symptoms of multiple arteritis, multiple arteritis, also known as primary arteritis syndrome, aortic arch syndrome, avascular disease or Takayasu`s disease. The incidence rate in the eastern countries is higher, more common in young women. Clinical diagnosis, typical clinical manifestation is not difficult to diagnose. Women under the age of 40 who have the following performances or more should be suspected of the disease.

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