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Muscle deep-dives

Iliocostalis Lumborum trigger points: referred pain, palpation and release

A clinical deep-dive on Iliocostalis Lumborum: trigger point locations, the referred pain pattern they produce, palpation landmarks, activating factors and an evidence-based release protocol.

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Iliocostalis Lumborum trigger points: referred pain, palpation and release
Iliocostalis lumborum — L1-level trigger point in the lateral lumbar paraspinals with referred pain down over the buttock and along the iliac crest.

Why this muscle causes pain

Erector spinae extending the lumbar spine; assists side bending. Trigger points here are common in everyday and athletic populations and frequently contribute to the referred pain patterns described below.

Where the trigger points sit

Lateral lumbar paraspinal column.

The referred pain pattern

Lower back pain along the iliac crest, sometimes wrapping to the lower abdomen.

How to find it by palpation

Palpate the muscle belly along its accessible course. Reproduction of the patient's familiar pain on palpation supports involvement.

What sets it off

Prolonged sitting, repetitive bending, asymmetric loading.

Self-care that actually helps

Trunk mobility, hip hinge retraining. Clinically: needling, manual release.

Symptoms this muscle produces

Clinically, this muscle turns up in the workup of appendicitis-like pains, bloating/nausea/abdominal cramps, low back pain, lumbar pain, sacral & gluteal pain and buttock pain. Those are the complaints its referral zone overlaps, which is why a patient may present with any of them and never mention the muscle itself.

Muscles covered

Studies cited

Every claim in this article traces back to one of the sources below.

  1. Kietrys 2013Effectiveness of dry needling for upper-quarter myofascial pain: a systematic review and meta-analysis. J Orthop Sports Phys Ther 2013;43(9):620-34
  2. Gattie 2017The effectiveness of trigger point dry needling for musculoskeletal conditions by physical therapists: a systematic review and meta-analysis. J Orthop Sports Phys Ther 2017;47(3):133-49
  3. Boyles 2015Effectiveness of trigger point dry needling for multiple body regions: a systematic review. J Man Manip Ther 2015;23(5):276-93
  4. Charles 2019A systematic review of manual therapy techniques, dry cupping and dry needling in the reduction of myofascial pain and myofascial trigger points. J Bodyw Mov Ther 2019;23(3):539-46
  5. Cagnie 2013Physiologic effects of dry needling. Curr Pain Headache Rep 2013;17(8):348
  6. Fernández-de-las-Peñas 2019Trigger point dry needling for the treatment of myofascial pain syndrome: current perspectives within a pain neuroscience paradigm. J Pain Res 2019;12:1899-911
  7. Shah 2015Myofascial trigger points then and now: a historical and scientific perspective. PM R 2015;7(7):746-61
  8. Halle 2016Pertinent dry needling considerations for minimizing adverse effects. Int J Sports Phys Ther 2016;11(5):651-62
  9. Boyce 2020Adverse events associated with therapeutic dry needling. Int J Sports Phys Ther 2020;15(1):103-13
  10. Hong 1994Lidocaine injection versus dry needling to myofascial trigger point: the importance of the local twitch response. Am J Phys Med Rehabil 1994;73(4):256-63
  11. Simons & TravellMyofascial Pain and Dysfunction: The Trigger Point Manual (2nd ed.). Williams & Wilkins, Baltimore

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