CornerLoc SI Joint Stabilization

At Arizona Pain Treatment Centers, we provide advanced and minimally invasive treatment options including CornerLoc SI Joint Stabilization focused on helping patients reduce pain, improve mobility, and support overall quality of life.

Do You Suffer from SI Joint Pain?

A simple procedure may be the answer.

What Is Sacroiliac Joint Dysfunction?

The sacroiliac joints (SI joints) are located at the junctions of the sacrum and ilium on each side of the spine. These joints help transmit force from the upper body to the legs while absorbing shock.

Instability in the SI joint can become a major source of chronic pain.

Minimally Invasive Procedure

CornerLoc™ is a posterior approach SI joint stabilization procedure performed through two small incisions in the lower back.

Benefits

  • Minimally invasive
  • Shortest and safest access route to the SI joint
  • Immediate joint stability
  • Low risk of neural complications
  • Fast recovery
  • Significant pain relief

Contraindications and Warnings

Circumstances that may reduce successful outcomes include:

  • Acute or chronic infections
  • Morbid obesity
  • Local inflammation
  • Fever or leukocytosis
  • Congenital abnormalities
  • Osteopenia or osteoporosis
  • Inadequate bone quality or tissue coverage
  • Inability to follow postoperative instructions
  • Smoking or alcohol use during healing

Women of childbearing age should consult their physician regarding future childbirth considerations.

Treatment Cycle and Options

Conservative care is recommended before surgery, including:

  • Physical therapy
  • Chiropractic manipulation
  • Exercise programs
  • Bracing
  • Pain management injections
  • Radiofrequency ablation (RFA)

SI joint stabilization should only be considered after conservative options fail to provide lasting relief.

The CornerLoc™ SI Joint Stabilization Procedure

The CornerLoc™ system is designed to create optimal stabilization and fusion potential with minimal surgical invasiveness.

Two grafts are placed orthogonally within the SI joint to provide immediate stability and create an environment supportive of fusion.

Causes of SI Joint Instability and Pain

  • Prior injury or accident
  • Arthritis
  • Low back instability
  • Previous lumbar surgery
  • Pregnancy-related ligament loosening

Common Symptoms of SI Joint Pain

  • Low back pain
  • Pelvic or buttock pain
  • Lower extremity pain
  • Hip or groin pain
  • Difficulty sitting, sleeping, or walking

About Sacroiliac (SI) Joint Instability

SI joint instability remains an underdiagnosed pain generator in many patients.

When conservative treatment options fail, SI joint stabilization may offer meaningful and long-term pain relief.

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