In the limb height raising test, when the straight leg is used to raise the healthy limb, the nerve root of the healthy side pulls the hard capsule to move to the distal end, so that the nerve root of the affected side also moves downward. Check for prominent disc tissue. The experimental mechanism is that when the straight leg raises the healthy limb, the nerve root of the healthy side pulls the hard capsule to move to the distal end, so that the nerve root of the affected side also moves downward. When the disc tissue of the affected side protrudes from the ankle of the nerve root, the downward movement of the nerve root is restricted, causing pain.

Basic Information

Specialist classification: growth and development check classification: physical examination

Applicable gender: whether men and women apply fasting: not fasting

Analysis results:

Below normal:

Normal value:
no

Above normal:

negative:
The result of the test was negative. There was no sciatica.

Positive:
The result of the examination is positive, that is, when the intervertebral disc tissue of the affected side protrudes in the ankle of the nerve root, the downward movement of the nerve root is restricted, resulting in pain. Prompt for disc herniation.

Tips: To relax when checking, you should face it positively and actively cooperate with the inspection. Normal value

The result of the test was negative. There was no sciatica.

Clinical significance

Abnormal results:

The result of the examination is positive, that is, when the intervertebral disc tissue of the affected side protrudes in the ankle of the nerve root, the downward movement of the nerve root is restricted, resulting in pain. Prompt for disc herniation.

People who need to be examined: people with abnormal pain at the waist.

Positive results may be diseases: extreme lateral lumbar disc herniation, lumbar disc herniation

Taboo before inspection: no special contraindications.

Requirements for inspection: Check the feelings of relaxation, should face positively, and actively cooperate with the inspection.

Inspection process

The patient is supine, and when the limb is raised, the sciatica is positive in the affected limb. The experimental mechanism is that when the straight leg raises the healthy limb, the nerve root of the healthy side pulls the hard capsule to move to the distal end, so that the nerve root of the affected side also moves downward. When the disc tissue of the affected side protrudes from the ankle of the nerve root, the downward movement of the nerve root is restricted, causing pain.

Not suitable for the crowd

Inappropriate crowd: None.

Adverse reactions and risks

Nothing.