RSM-REM-011
Written by Hironori Ikeda, MSc Sports Medicine
RSM International Academy · Chiang Mai, Thailand
What Should You Assess When the Client Points to Pain Near the PSIS?
The client often reaches straight to the PSIS region, rubs one side of the pelvis, hesitates when standing from a chair or shifts during a step or single-leg task. Pain near that landmark does not establish an “SI-joint dysfunction.” Lumbar, hip, pelvic-girdle and neural presentations can overlap in the same region.
I first reproduce the client’s familiar transfer, step, walking or single-leg symptom and compare lumbar and hip findings before interpreting the SI region. Use a small cluster of SIJ pain-provocation tests only when the history fits; do not diagnose pelvic rotation from static landmark height. Major trauma, systemic signs, progressive neurological loss, bowel or bladder change, saddle sensory loss or inability to bear weight changes the plan and requires referral.
In this article, you will learn how to assess pain near the PSIS, decide which regional findings matter to the therapist, choose a conservative treatment or referral direction and re-test the same functional task.
In This Article
- What Should You Assess When the Client Points to Pain Near the PSIS?
- In This Article
- 1. Clinical Problem & Differential: Pain Near the PSIS
- 2. Muscle / Joint / Nerve Comparison: Gluteals & Multifidus + SI Joint
- 3. Differential Assessment: PSIS Pain + SIJ Provocation Cluster
- 4. Treatment Scope & Symptom Re-Test: Pelvic Girdle Pain
- 5. Re-Test: Sit-to-stand or step with matched stance and support
- Related RSM Clinical Blogs
- Study Remedial Massage at RSM
1. Clinical Problem & Differential: Pain Near the PSIS
Ask about trauma, pregnancy/postpartum history, walking, stairs, rolling in bed, single-leg loading and symptom spread. Major trauma, fever, systemic illness, progressive neurological loss, bowel or bladder change, saddle sensory loss or inability to bear weight requires referral.
The posterior superior iliac spine is a landmark, not a diagnosis. I record whether the familiar complaint appears during weight transfer, rolling in bed or walking, then ask whether a change in hip or lumbar movement influences it. If the examination does not form a coherent pattern, I retain that uncertainty rather than explaining the pain through one high or low landmark.
New bladder or bowel dysfunction with back or leg symptoms, saddle sensory loss or other suspected cauda-equina features requires emergency assessment. Do not delay that pathway for a manual trial.
2. Muscle / Joint / Nerve Comparison: Gluteals & Multifidus + SI Joint
Gluteal, multifidus, QL and adductor tenderness may affect comfort but does not prove an SIJ source. Compare lumbar movement, hip ROM and the provoking transfer or walking task. Neural screening follows symptom distribution rather than routine labelling.
Gluteus maximus contributes to hip extension, while gluteus medius helps control the pelvis during single-leg support. Multifidus and the other paraspinals contribute to trunk control and movement. Their activity during a transfer does not show that the sacroiliac joint is displaced. I compare the painful transfer with a supported hip movement and a separate lumbar movement, using symptom behaviour rather than PSIS height to guide the next step.
3. Differential Assessment: PSIS Pain + SIJ Provocation Cluster
- Establish the comparable task and precise pain location.
- Screen lumbar movement and repeated response.
- Compare hip ROM and relevant hip provocation.
- Use a cluster selected from thigh thrust, distraction, compression, sacral thrust and Gaenslen.
- Avoid conclusions from positional palpation alone.
- Re-test the same transfer, step or walk.
Concordant provocation findings may inform an SIJ hypothesis, but the 2021 systematic review found that a positive cluster has limited ability to confirm the source, with very low-certainty evidence. Interpret it alongside the hip and lumbar comparison.
I do not diagnose an SIJ problem from the height of one PSIS. I first watch gait, single-leg loading and the relationship between the trunk, pelvis and hip, then compare the painful task with lumbar and hip motion. Positional asymmetry matters only when it connects consistently with the client's symptoms and movement.
4. Treatment Scope & Symptom Re-Test: Pelvic Girdle Pain
Treatment may address symptom-relevant gluteal, lumbar and hip tissues and graded load tolerance. Do not promise to realign the pelvis. Repeat the identical task with the same stance, range and load. Persistent trauma-related pain, worsening function or neurological change requires medical review.
For a matching gluteal muscle complaint, I support the hip and begin with broad contact over the identified belly rather than pressing into the PSIS to move it. If a small stance change helps more than the local contact, I retain that option for the transfer. An SIJ hypothesis does not require an attempt to realign the pelvis.
5. Re-Test: Sit-to-stand or step with matched stance and support
Repeat the same transfer, step or walking task with the original stance, support and speed. If the changed stance helped, record that comparison separately from the return to the baseline.
Interpret provocation clusters cautiously: the 2021 review found limited rule-in value and very low certainty. A compatible cluster may inform the hypothesis, but persistent or changing symptoms still require consideration of the hip, lumbar spine and other causes.
Related RSM Clinical Blogs
Browse all Remedial Massage clinical guides
▷ Hip Pain or Pain Referred From the Back? — Remedial Massage · Broaden the differential assessment.
▷ Lateral Pelvic Shift: QL, Gluteals & Adductors — Deep Tissue Massage · Examine supported hand position and tissue contact.
▷ Low Back / Rib Tightness After Golf: Hip-Thorax Rotation — Sports Massage · Connect the findings with the sport task and training exposure.
Study Remedial Massage at RSM
In practical training, learn to use SI-region findings without diagnosing pelvic displacement from landmarks or a positive test cluster. Work through the task, anatomical landmarks and hand-position choices with a clear reason for the next assessment.
▷ Remedial Massage — course details and entry requirements
About the Author
Hironori Ikeda, MSc Sports Medicine
Founder and lead instructor of RSM International Academy, Chiang Mai, Thailand. His teaching connects functional anatomy, clinical palpation, movement assessment and sports medicine manual therapy.