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*SiFix is available as an in-office procedure for its Intra-Articular implant. Reach out to learn more information.

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Sacroiliac Joint

The SiFix Systems Has Several Major Benefits Compared to Traditional Si Joint Fusion Systems.

  • Minimally Invasive system with typically less than 5ml of blood loss during the whole procedure

  • Faster recovery time than traditional systems

  • Multiple implant options for coding

  • Posterior Approaches that are safely away from blood vessels and nerves

  • Lateral Approaches that offer self drilling and self taping implants

“Up to 30% of low back pain may be from the Si Joint” (1)

“75% of lumbar fusion leads to Si Joint pain” (2)

(1)Weksler N, Velan GJ, Semionov M, Gurevitch B, Klein M, Rozentsveig V, Rudich T. The role of sacroiliac joint dysfunction in the genesis of low back pain: the obvious is not always right. Arch Orthop Trauma Surg. 2007 Dec;127(10):885-8. doi: 10.1007/s00402-007-0420-x. Epub 2007 Sep 8. PMID: 17828413.

(2)Ha KY, Lee JS, Kim KW. Degeneration of sacroiliac joint after instrumented lumbar or lumbosacral fusion: a prospective cohort study over five-year follow-up. Spine (Phila Pa 1976). 2008 May 15;33(11):1192-8. doi: 10.1097/BRS.0b013e318170fd35. PMID: 18469692.

Patient Identification-Sacroiliac

*Not all symptoms may be present and can be isolated to only one indicator. Other common pain areas include, but are not limited to, the hip, groin, and buttocks.

Lower Back Pain

The most common symptom is pain in the lower back, typically on one side or both sides of the spine. The pain may be described as a dull ache, a sharp or stabbing pain, or a constant discomfort.

Pain When Lying on One Side

Individuals with SI joint pain may find it uncomfortable to lie on one side, particularly on the affected side.

Leg Pain

Pain can radiate down one or both legs, often along the sciatic nerve distribution. This can lead to symptoms similar to sciatica, such as leg pain, numbness, tingling, or weakness.

Stiffness

Some people with sacroiliac joint dysfunction may experience stiffness in the lower back, pelvis, or hips, especially in the morning or after periods of inactivity.

Pain with Activity

Sacroiliac joint pain is often aggravated by specific activities or movements, such as walking, climbing stairs, standing for extended periods, or transitioning from sitting to standing.

Pain During Physical Activities

Activities that involve twisting or bending at the waist, lifting heavy objects, or bearing weight unevenly on the pelvis can trigger or exacerbate SI joint pain.

Sacroiliac Joint Prodcts

Facet Joint vs Lumbar Pain

Facet

  • Location

    Localized to low back, often off-center, may radiate to buttocks or upper thigh.

    Pain Onset

    Often insidious, worse with age or arthritis

    Pain Type

    Dull, aching, worse with extension or twisting

    Referred Pain Pattern

    Referred pain in a non-dermatomal pattern (e.g. buttock, upper thigh)

    Relieved By

    Flexion (bending forward), heat, rest

  • Straight Leg Raise (SLR)

    Usually negative

    Pain with Flexion (bending forward)

    Often better

    Pain with Extension (leaning back)

    Worse

    Palpation

    Localized tenderness over facet joints (1-2 cm lateral to midline)

  • MRI

    Joint hypertrophy, sclerosis, narrowing of joint space

    X-Ray

    May show facet arthritis but not soft disc pathology

    CT

    Best for bone details (e.g., facet joint arthropathy)

  • Facet Joint Medial Branch Blocks

    Temporary relief = facet pain

Lumbar

  • Location

    Deep, central low back, possibly radiating to the buttocks or legs (esp. if nerve root involved)

    Pain Onset

    Can be acute (injury) or chronic

    Pain Type

    Aching or sharp, may be worse with sitting or flexion

    Referred Pain Pattern

    May follow a dermatomal pattern if nerve root involved

    Relieved By

    Lying flat, walking short distances

  • Straight Leg Raise (SLR)

    Often positive (esp. with radiculopathy)

    Pain with Flexion (bending forward)

    Worse

    Pain with Extension (leaning back)

    Usually better

    Palpation

    May elicit diffuse tenderness

  • MRI

    Disc bulges, herniation, Modic changes, annular tears

    X-Ray

    May show narrowing of disc space

    CT

    Confirm bone details such as stenosis or narrowing of disc or foramen

  • Reproduces discogenic pain when injecting contrast into the disc (rarely used)

Flex = Disc

Extend = Facet

Facet and Lumbar Products