Limb deformity is a serious comorbidity of limb trauma, and is an uncommon ischemic contracture, but once it occurs, it can cause serious consequences. Due to insufficient blood supply to the upper and lower extremities or over-tightening of the cast for more than a certain period of time, the limb muscles become necrotic due to ischemia and eventually become mechanized, forming scar tissue and gradually contracting to form a characteristic deformity. Severe displaced fractures, large hematomas, and over-tightened casts or splints can cause this disorder. Spasm of the arterial and collateral circulation occurs after injury to the affected limb due to injury or mechanical compression of the brachial artery. The blood circulation of the limb below the spasm is severely impaired, leading to the development of the syndrome. Such as severe pain, swelling, skin color change, weak or inactive finger (toe) mobility, dull sensation, diminished or absent pulse, etc. Does passive movement of the finger (toe) cause pain. Dyspnea, the patient often wakes up in the middle of sleep, with a feeling of suffocation, forced to sit up, coughing frequently, severe dyspnea; coughing and hemoptysis; may have fatigue and weakness, insomnia, palpitations, etc. Epigastric distension, often accompanied by loss of appetite, nausea, vomiting and epigastric distension; jugular venous anger; sunken edema; varying degrees of cyanosis; hypersensitivity, insomnia, drowsiness and other symptoms; cardiac signs: mainly the original contracture manifestations. Clinical manifestations of ischemic contracture may be present at the same time, or may be dominated by clinical manifestations of ischemic contracture. Ischemic contracture alone is less common. Ischemic contracture followed by ischemic contracture resulting in total ischemic contracture, as well as total ischemic contracture due to severe and extensive myocardial disease affecting both the heart and the heart are more common clinically.