Lower extremity abduction

Introduction The acetabular and femoral heads that make up the hip joint are closely matched in shape, which is a typical ankle joint. There are strong ligaments and strong muscle groups around, so only strong violence can cause hip dislocation. In a car accident, violence is often high-speed and high-energy, and it is not uncommon for multiple traumas. According to the direction of dislocation of the femoral head, it can be divided into anterior, posterior and central dislocation. Later dislocation is the most common.

Cause

Anterior dislocation of the hip is rare, and there are two types of violence that can cause anterior dislocation of the hip. The first type of violence is a traffic accident. The patient's hip joint is in the outreach position, the knee joint is flexed, and it is placed on the back of the front seat. When the brake is applied during the sudden braking, the femoral head is worn out from the weak part of the inner and lower parts of the front of the hip joint capsule. The second type of violence fell from the sky, and the femoral head was abducted outside and the lower part of the hip was directly violent.

an examination

Related inspection

MRI examination of bone and joint X-ray iodine angiography

1. History of trauma caused by strong violence.

2. The affected limb is abducted, externally rotated and flexed deformed. According to the typical malformation, it is not difficult to distinguish between anterior dislocation and posterior dislocation.

3, swelling in the groin, you can touch the femoral head.

4, X-ray film can understand the direction of dislocation.

Differential diagnosis

Lower limb shortening: dislocation of the affected femoral head to the upper and lower parts of the common lower limb shortening is one of the clinical symptoms of congenital dislocation of the hip and hip dysplasia.

The lower limbs are scissor gait is the clinical manifestation of bilateral cerebral palsy. In the lower limbs, the muscle tension is increased, especially the tension in the muscles is increased. When the steps are taken, the lower limbs are over-exposed and the legs are scissor-shaped.

Children with lower extremity distortion: common in intestinal spasm, mainly manifested as persistent, difficult to appease crying. The main manifestations are crying and uneasiness, which may be accompanied by vomiting, cheek flushing, tumbling, and distortion of both lower extremities.

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