Straight Leg Raise Test for Sciatica

Sciatica, a common condition characterized by pain in the lower back and legs, can be challenging to diagnose. One of the essential orthopedic tests used to assess sciatica is the straight leg raise (SLR) test. This test is performed by passively raising the lower extremity of the supine client/patient by flexing the thigh at the hip joint with the knee joint extended.

The SLR test places tension on the entire spinal cord and peripheral nerves, making it an effective tool for assessing space-occupying lesions in the cervical and lumbar regions. Additionally, this test can help identify thoracic outlet syndrome. By stretching the sciatic nerve, the SLR test can also assess whether compression is occurring in the intervertebral foramen (IVF) or central canal.

There are two methods of performing the SLR test: active and passive. Passive SLR removes the need for the client/patient to actively contract their musculature, which may cloud the clinical picture by causing pain due to muscular strain. Active SLR should yield the same results as passive SLR, but it is important to note that this test requires careful interpretation.

The slump test is another orthopedic test used to assess sciatica. This test involves having the client/patient assume a slumped posture and then passively flexing their thoracic and lumbar spine. The slump test can also help identify space-occupying lesions in the cervical and lumbar regions, as well as thoracic outlet syndrome.

In conclusion, the straight leg raise test is an essential component of physical examination assessment for sciatica. By understanding how to perform this test correctly and interpreting the results accurately, healthcare professionals can make informed decisions about treatment and referral for clients/patients with sciatica-related symptoms.

Straight leg raise test for sciatica