What Is a Knee Contusion?

A knee injury is a type of soft tissue injury. Symptoms include local swelling, tenderness, blood stasis, limited knee joint movement, tenderness at the break, and depression can be touched and bone sounds can be heard.

Knee injury

Caused by bumps. If there is more blood in the knee joint, you can puncture and remove the blood stasis first, go to the knees, wash the area with the injury and wash it, and cooperate with functional exercises. Mainly due to trauma, related to his usual activities. It is easily damaged when doing strenuous activities.

Wound size, shape, bleeding, degree of injury and extent, whether the skin has ecchymosis, blisters, changes in skin temperature, refers to the circulation of the toe, whether the muscle ischemic necrosis, whether the injured limb is swollen, skin Nervousness and stiffness, ability to move, and sensory disturbance.

1. Inquire in detail about the time, cause and condition of the injury, whether it is a crush injury, whether there is urinary occlusion, oliguria, and hematuria after the injury; what treatments have been received and how effective are they.

2. Pay attention to whether there is shock or damage to other parts of the body, and whether there is crush syndrome (acute renal failure characterized by swelling of the limbs or trunk, myoglobinuria, and hyperkalemia).

3. Inspect the wounded area carefully, pay attention to the size, shape, bleeding, injury degree and scope of the wound, whether the skin has ecchymosis, blisters, whether the skin temperature changes, refers to the circulation of the toe, and whether the muscles are ischemic. Necrosis, whether the injured limb is swollen, the skin is tense and hard, whether it can move, whether there is a sensory disturbance.

4. Patients with severe trauma (including crush injury) or severe systemic symptoms should check blood and urine routine daily, record urine volume, and if necessary, perform blood, urine biochemical tests (including myoglobin), electrocardiogram, and renal function.

Differential diagnosis of knee injury:

1. Sprained knee:

Special tips: In the early stage, that is, within 24 hours and 8 hours after the injury, cold compresses are very important to control bleeding and exudation and reduce swelling and pain. In the middle and later periods, physical therapy, massage, and blood circulation drugs can be used in combination with functional exercises to promote Congestion and exudation absorption, tissue repair. You should also pay attention when you are transporting yourself to prevent injury and protect yourself.