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Background

The patient is 26 years old. Cohabiting, no children. Works as an engineer with a lot of sedentary work. Previously healthy, but has had pain (VAS 4) in the lower back on the right side for the past five years. The pain increases to VAS 6 with prolonged sitting, which makes office work difficult. One year ago, the patient had an episode of red eye, but currently has no eye symptoms.

The patient sees a doctor due to increased pain (VAS 5) in the lower back. The pain is located low in the lumbar region and towards the right side. The back is stiff and painful in the morning, but improves after about half an hour. Moderate activity provides some relief, while rest does not help. The patient experiences regular nighttime pain. The symptoms vary between periods of more and less pain. The patient occasionally uses Paracetamol when the pain is at its worst, but with little effect.

Consultation video

Medical history

  1. Doctor

    What can I help you with?

  2. Patient

    I have had pain in my lower back for quite a long time, but it has gotten worse recently.

  3. Doctor

    Where is the pain mostly located?

  4. Patient

    Low in the back, mostly on the right side.

  5. Doctor

    How long have you had it like this?

  6. Patient

    Actually for several years… maybe around five years, but over the past year it has become more bothersome.

  7. Doctor

    How is it when you get up in the morning?

  8. Patient

    I am quite stiff and affected by pain when I get up, but it eases a bit after about half an hour.

  9. Doctor

    What happens if you are moderately active?

  10. Patient

    It actually gets a little better when I move.

  11. Doctor

    Does it get better if you rest?

  12. Patient

    No, not really. Rest doesn't help that much. And I also have pain at night.

  13. Doctor

    Is there anything that makes it worse?

  14. Patient

    Yes, if I sit for a long time, it gets worse. It has become a problem at work.

  15. Doctor

    Have the symptoms been the same all the time?

  16. Patient

    No, it varies. Some periods are worse, others are a little better. I find it difficult to understand the pattern.

  17. Doctor

    Do you use painkillers?

  18. Patient

    Just Paracet occasionally when it is at its worst, but it does not help much.

  19. Doctor

    Have you had other symptoms, for example with the eyes?

  20. Patient

    I had a red eye about a year ago and got some eye drops, but I don't remember much more about it. There is nothing with the eyes now.

Tentative diagnosis

based on medical history and standard examination
  • Right-sided sacroiliac joint arthritis.

Examination

Special tests to strengthen or weaken the likelihood of the tentative diagnosis.

  1. 1. Location of pain

    Doctor

    Can you show where you feel the pain most?

    Patient

    Points low at the back of the pelvis on the right side, over the area of the sacroiliac joint.

    It is located back here, on the right side.

    Findings

    • The pain is indicated on the right side over the sacroiliac joint.
  2. 2. Forward bend

    Doctor

    Can you bend forward?

    Patient

    Bends with noticeable discomfort. The pain is located low at the back on the right side.

    Yes, it gets worse back there.

    Findings

    • The pain worsens when bending forward.
  3. 3. Hip movement

    Doctor

    I want to examine your hip joint a little.

    Patient

    Indicates diffuse, somewhat indeterminate pain. The pain is felt mostly at the back of the pelvis on the right side, not clearly in the groin.

    It is felt, but it is mostly located at the back.

    Not really in the groin.

    Findings

    • Indeterminate diffuse pain with hip movement, mostly at the back of the right pelvis and not in the groin.
  4. 4. FABER test

    Doctor

    Now I will do a test of the hip and pelvis. Let me know if it triggers the pain you feel.

    Patient

    Quickly recognizes the pain at the back on the right side.

    Yes, it hurts at the back on the right side.

    Findings

    • Pain on the right side at the back during FABER test.
  5. 5. Sacroiliac joint compression test

    Doctor

    I am going to press a little over the pelvis. Let me know if it triggers the pain.

    Patient

    Recognizes the same pain in the right posterior pelvic region.

    Yes, it hits the same spot.

    Findings

    • Pain on the right side at the back during sacroiliac joint compression test.
  6. 6. P4 test

    Doctor

    Now I am doing a new provocation test. Let me know if you feel the same pain.

    Patient

    The pain is located at the back of the right pelvis, not down the leg or at the front in the groin.

    Yes, there it comes again at the back on the right side.

    Findings

    • Pain on the right side at the back during the P4 test.
  7. 7. Palpation of the right sacroiliac joint in prone position.

    Doctor

    Lie on your stomach, then I will press a little over the area at the back.

    Patient

    Reacts with recognizable local pain upon pressure on the right sacroiliac joint.

    Yes, that is exactly where I hurt.

    Findings

    • Pain when the doctor presses on the right sacroiliac joint in the prone position.
  8. 8. Neurological examination of the lower extremities

    Doctor

    I also want to check strength and sensation in the legs.

    Patient

    No neurological deficits.

    It feels normal.

    I do not notice any weakness.

    Findings

    • Normal strength and sensation in both lower extremities.

Learning points

  1. 1 Pelvic and low back pain localized posteriorly over the sacroiliac joint.
  2. 2 Morning stiffness, night pain, changes over time and improvement with moderate activity are important details in the medical history.
  3. 3 Hip movement can cause diffuse pain, but the pain is still described posteriorly and not in the groin.
  4. 4 The neurology in the lower extremities is normal.
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