SI Joint Dysfunction Physical Therapy · Oceanside, CA
SI JOINT
DYSFUNCTION
DYSFUNCTION
THE BACK PAIN
THAT'S NOT YOUR BACK.
THAT'S NOT YOUR BACK.
SI joint dysfunction is one of the most commonly misdiagnosed causes of low back and buttock pain. It's frequently mistaken for disc herniation or sciatica — and treated incorrectly for years as a result. When it's properly identified and treated, the results are often rapid and dramatic.
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Understanding the Condition
WHAT IS SI JOINT DYSFUNCTION?
The sacroiliac joints connect the sacrum (base of the spine) to the ilium (pelvis) on both sides. SI joint dysfunction occurs when this joint becomes either hypermobile (too much movement) or hypomobile (restricted) — producing pain in the low back, buttock, hip, and sometimes referring into the leg in a pattern that mimics sciatica.
SI Joint Hypomobility: The joint becomes restricted or locked. Often follows a sudden movement, fall, or pregnancy. Responds rapidly to specific manual therapy and joint mobilization.
SI Joint Hypermobility: Excessive movement at the joint, often from ligament laxity. Common postpartum. Requires stabilization work rather than mobilization.
Pregnancy-Related SI Pain: Hormonal changes during pregnancy increase ligament laxity. PT focused on load management, bracing, and targeted stabilization is highly effective.
Post-Traumatic SI Dysfunction: Following a fall, motor vehicle accident, or heavy lifting injury. Often involves both SI joint and surrounding soft tissue. Manual therapy is the primary treatment.
Treatment Approach
HOW WE TREAT IT
SI joint treatment depends entirely on whether the joint is hypomobile or hypermobile — two opposite presentations that require opposite approaches. Accurate diagnosis is what makes the difference.
01
Restore Normal Joint Mechanics
For hypomobility: specific SI joint manipulation and mobilization for rapid pain relief. For hypermobility: bracing, load modification, and stabilization to reduce excessive movement.
02
Pelvis & Hip Stabilization
Gluteal and deep hip stabilizer strengthening that provides dynamic support to the SI joint and reduces the mechanical demands on the passive structures.
03
Return to Full Function
Progressive loading, postural correction, and the movement habits — lifting mechanics, sitting posture, asymmetrical loading patterns — that keep the joint stable.
Typical TimelineHypomobility responds rapidly — often within 2–4 sessions. Full resolution: 10–16 weeks. Hypermobility: 8–12 weeks.
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LET'S SEE IF
WE CAN HELP.
WE CAN HELP.
Submit a request and we'll call you to hear your situation. We'll give you an honest answer about whether we think we can help — before you ever step in the door.
📍 821 S Tremont St, Oceanside, CA · (760) 542-6666