Straight Leg Raise or Lasègue’s Test for Lumbar Radiculopathy

Straight Leg Raise or Lasègue’s Test for Lumbar Radiculopathy

In this video I’m going to demonstrate the Straight Leg Raise or Laségue’s Test for Lumbar Radiculopathy. Hi and welcome back to Physiotutors. The Straight Leg Raise Test is one of the most commonly used tests in neurological assessment of a patient who displays Lumbar Radiculopathy symptoms that are commonly caused by disc herniations. These symptoms include radiating pain down the leg, loss of muscle strength, numbness and/or tingling in one or both legs. The Straight Leg Raise Test has been evaluated to have sensitivity of 91% and specificity of 26% as reported in the systematic review by Deville et al. from the year 2000. To conduct the test, have your patient in supine line position. Normally you would start by assessing the unaffected leg first. Then, flex your patients leg at the hip joint while keeping the knee in the fully extended position. And ask your patient to inform you once symptoms occur. Normally you would expect radicular symptoms to occur in the range between 35-70 degrees of hip flexion. If pain is elicited passed this range this pain is mostly coming from the lumbar spine or the sacroiliac joint. To further assess the neurological tissue Perform the Straight Leg Test until symptoms occur Move out of the painful range and then either Dorsiflex the ankle Which is referred to as the Bragard’s Sign Or ask the patient to maximally flex the neck which is referred to as the Neri’s Sign. If pain is elicited during any of those two maneuvers it indicates the stretch in the dura mater or a lesion with in the spinal cord which could be cause by disc herniations or tumor. As I’ve stated the literature reports that the Straight Leg Raise Test is a very sensitive test that you can use to exclude the Lumbar Radiculopathy If you want to confirm your diagnosis be sure that you also include a thorough patient history, reflex and muscle testing in your assessment. OK, this was our video on the Straight Leg Raise Test If you liked it be sure to give it a Thumbs Up Leave a comment down below And subscribe to our channel if you haven’t And if you want you can check out the Slump Test which is another common neurodynamic test as well as the Prone Knee Bending Test As always this was Andreas for Physiotutors I’ll see you next time Bye


  • Physiotutors says:

    In the video, the patient's head is supported by a thin pillow. In the purest form of this test, the patient lies flat on the bench. This is fairly impractical in practice. Some might argue that placing a thin pillow under the patient's head will already put tension on the dura and alter the test results. Make sure that when you choose for a pillow, that you use a thin one and that you use this same position every time you reassess for symptoms!

  • alex mark says:

    is there a difference between the straight leg raising for lumbar radiculopathy and for dural stretch test ?

  • Nathakorn Piangcharoen says:

    Could you please give me the references of your presentation on the degrees of PSLR (hip flexion in 0-35, 35-70 and >70) with differential diagnosis? Please send it to me via e-mail ([email protected]), thank you very much. Korn

  • Aba Alibaba says:

    should you be standing on patient's right side instead in order to show the exemplary way doing the test?

  • Lorran Courts says:

    this is great thankyou

  • Morgan Brandy says:

    Is this for sciatica also?

  • Am Alsafi says:

    thank you for everything,, plz I'm so sorry I know it's not related to your media ,, I just would ask you if you know the mechanism of paralytic ileus,, and how the pelvic fractures complicated by paralytic ileus,, because I have exam in surgery after 10 days 😢😢😢😢

  • Jimin ‘s Shoulder says:

    I am confused
    At uni
    They taught us to Dorsiflex and then internally rotate the tibia and adduct the thigh!! If there is reproduction of symptoms
    (Sensitising movements) the rest is positive.
    So is this the same ?

  • Jakob Guldager says:

    Could an SLR be positive even if there's not root preassure from a herniated disc? What if there is just a generel neural inflammation or ischemia (for whatever reason) that has caused allydonia in one of the nerves that are stretched? Could it be positive anyway?

  • Bhat Azhar says:

    Thanks for making this more easier to understand keep making more and more videos.

  • Abeer Mohammed says:

    Thank you so much, this is clear and simple

  • ïedm says:

    I'm a fysiotherapy student. These video's are really helpfull. Keep it up!

  • Mr. Amigo says:

    Your videos are very good. They are helping me in my exams. Can you please update on PASSIVE NECK FLEXION TEST.
    I'm very confused in that test..

    Thanx for such a great initiative.
    Wish to become a good, knowledgeable physiotherapist like you.

  • 의명 says:

    Bragard`s sign = Lasegue sign ?

  • Pallas Athene says:

    on both sides the same symptoms should occur ?

  • Rory Bray says:

    I have had very strong neural tension in SLR and SLUMP my whole life. I don't have pain at all except when doing movements like these. Not sure why…

  • 콩자반 says:

    Thank you! Very helpful video:)

  • Mohamed Belied says:

    To the point, Thanks.

  • mohsin ishfaq says:

    U ppl are just awesome 👍👍👍

  • 아어아 says:


  • Saira Memon says:

    if symptoms are positive with unaffected leg then we still do the test in effected leg? or we only do it when sign is not ositive in uneffected leg?

  • Cynthia Novelia says:

    Thank you

  • Grim Reaper says:

    Isn't Laseque test when you raise the leg, find resistance due to hamstring tightness, so lower it to about 20 degrees and then perform passive dorsiflexion to provoke the pain?

  • CC T says:

    Andreas is so hot

  • Gwyn Maritana says:

    my question is neri sign is supposed to be with dorsiflexion or just simply doing neck flexion?

  • Laura A says:

    god bless physiotutors!

  • Alex Nguyen says:

    these guys are sexy. That helps with learning.

  • Muh Fadhil says:

    thank you for sharing useful videos @physiotours

  • Celvi Jayaraman says:

    Is the theraband indicated aft 3rd week of orif of lower limb? And wch color of theraband is used for after orif ?

  • Abdo DIKNA says:

    Thank u for ur comprehve video

  • Ariane Vergilio says:

    Muito Bom !!

  • Darth Sidious says:

    Hello @physiotutors! I'm a big fan of your work here and I was just wondering if you could provide for every special tests the indications and contraindications of the special tests? It could really help alot. Thanks!

  • Ivan Chacha Angulo says:

    Un excelente video, sigan así.

  • Kishan Mavani says:


  • sara ahmed says:


  • gravityclarity says:

    Thank you for this!

  • Dope AF says:

    I feel twitching in my bladder/prostate/pelvic muscle, i can feel it but I can’t see it. I also see and feel twitching in my legs, calves and feet. My EMNG shows damage of my L4, L5 and S1 on both sides, but MRI doesnt show nerve compression.
    What can cause the twitching?

  • Nikki Burnett says:

    Hey Physiotutors, when performing these tests on your patients do you also perform the slump test? I'm reading mixed things whether you should perform both tests or just one.

  • macknumber9 says:

    Can you explain what the sensitivity and specificity rating is exactly?

  • franmajich says:

    Hey, I've tried this test and I feel pain in my right buttock (near acetabulum) and my range of motion in right leg is around 15-20%, when I flex the neck the pain gets worse, what could be the issue?

  • Gab B says:

    what f the patient's pain does not reproduced during slr but appear during braggard? what does this means? thanks

  • Thunder Squeal says:

    I have lower back pain on my left side and I cannot raise my left leg as it hurts my lower back.

  • mauli krushi says:

    After lifting leg where should be the pain

  • 포르쉐 says:

    thank you:)

  • Debbie Meko says:

    Too good Physiotutors. Just need a clarification on added manoeuvres (dorsiflexion and neck flexion) in tension-free range. Are these manoeuvres done to elicit symptoms or provoke symptoms in order to have a positive sign? You mentioned, "elicit symptoms". How will the symptoms be elicited when tension is added by these additional manoeuvres?

    Your response will be very much helpful. Thanks.

  • 쪼글쪼글 says:

    I love that korean sub ❤️ thanks for this video 🙂

  • Loula Boumaj says:

    Good one

  • Faith Martin says:

    I have been dealing with chronic body pain for almost a year now. I fell on a treadmill last early August and dislocated my pelvis/hip alignment and all of that. I thought I broke my hand at the same time however, so I continued to work out weightlifting like I had been doing before I fell on treadmill. Pain began to show up in lower left glue ham tie in/ischial tuberosity area, which I now know after seeing MANY doctors and a good PT that it is most likely hamstring tendonitis. The left leg butt/glute still flares up a little time and again but not horrible. I can usually deal with it with ice. As with any tendonitis, good PT and progressively challenging the muscle is essential. I have been doing that for about 3 months to address the left ischial tuberosity tendonitis and it has improved A LOT. Continuing issues however that I have been unable to resolve, and my current PT cannot seem to resolve, is chronic pain/muscle tightness/spasm in the right leg, which is quite odd considering I never directly injured that leg. Theories include incorrect gait walking due to pelvic/hip misalignment, hip flexor tightness, TFL tightness, IT band, the list goes on and on. I have tried every single type of therapy under the sun. Chiropractor, PT, acupuncture, electroshock therapy, massage therapy, percussion, etc. and my right leg continues to be tight like it is sore and I have worked my right quad to death. I also have chronic flare ups of neck pain/tightness, which is so bad some days that I have to stay in bed. No idea what causes it and it is nearly unbearable. Muscle relaxer pills/advil don’t help long term in the way that I need them too. I still feel pain even when I take them. I realize this is a lot of info and quite overwhelming but I just wanted to catch you up on my story and have you be able to get an idea about whether you can help me or not.

    Thank you for taking the time to read all this. Please respond, anything is appreciated. Do you think this could be a nerve tension problem? I did this test and it radiates/burns shooting pain throughout right leg along IT band outer thigh all the way into calf.

  • Elle A. says:

    You said @1:53 if "pain is elicited"…I just wanted to confirm WHERE would the pain be elicited. exactly. Thank you.

  • DrTekchand Sharma says:

    What about if pain is only felt in back during test becoz not all disc herniation will cause sciatic nervr compressiom

  • Amritha Balike says:

    Sir if we r lifting unaffected leg then which leg patient will have pain? Tq

  • Manuel Gutierrez says:

    Thanks for taking time out of your ploy to destroy the world to make this video.

  • Jaskiran saini says:

    Thank you!

  • Zahra Ali says:

    Sir there are ranges also….that if pain happens between 0-30 degree it indicates hip joint involvement
    If between 35-70 degree indicate disk involvement and if greater than 75 degree shows SIJ and Lumber involvement….🤗

  • Arnab Anwar says:

    Just wonderful, Alas, I didn’t see ir earlier. Please keep up the good work.

  • Harshini Desan says:

    Sir I have to watch ur all vedio about special tests. I have to go for paper presentation so kindly I request u plz give some idea to make the topic.

  • Vicky Teponnou says:

    Thanks for the video.

  • Gab B says:

    hi physiotutors, what does positive slr on both leg means?

  • WeirdClone says:

    Sir when i raise my right leg is almost 90 degree but when I raise the left its only about 20 degree!!! i can't do many exercises, can't l sit , touch my feet… this left leg don't let me do nothing!!!! (sr for my English)

  • Dr. Chris Sovey says:

    1:58: "IT'S NOT A TUMOR!" – Arnold Schwarzenegger

  • Ryoji Nishimura says:

    It's really simple and useful check. of course we have to put it on our routine.

  • Kainat Ali says:

    What’s the range in which muscles are involved????

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