The Three Category System in SOT: What Patients Need to Know

Understanding the SOT Classification System

One of SOT’s most distinctive features is its systematic approach to classifying patients into three main categories. This system helps practitioners understand the primary nature of dysfunction and determine the most appropriate treatment approach.

Category I: The Craniosacral Respiratory Mechanism

What It Represents

Category I relates to the craniosacral respiratory mechanism — the subtle rhythmic movement of cerebrospinal fluid throughout the craniosacral system.

Common Presentations

• Generalised spinal discomfort rather than localised pain
• Headaches involving the whole head
• Neck and upper back tension alternating sides
• Fatigue or sense of not feeling right
• Symptoms that move around the body
• History of head or birth trauma

Treatment Approach

Specific blocking positions restore normal craniosacral respiratory function, encouraging the sacrum and occiput to re-establish proper relationship.

Category II: Sacroiliac Joint and Pelvic Stability

What It Represents

Category II addresses sacroiliac joint dysfunction where the sacrum and pelvic bones have lost their normal relationship.

Common Presentations

• Lower back pain, often one-sided
• Pelvic or hip pain radiating to buttock or groin
• Pain with weight-bearing activities
• Difficulty transitioning from sitting to standing
• History of pregnancy or pelvic trauma

Treatment Approach

Blocking uses different placements specifically designed to address SI joint dysfunction and restore pelvic stability.

Category III: Localised Spinal Issues

What It Represents

Category III addresses localised spinal problems, particularly in the lumbar region, including disc issues and facet joint dysfunction.

Common Presentations

• Sharp, specific back pain at a particular level
• Radiating pain into buttock, leg, or foot
• Numbness or tingling in specific patterns
• Pain aggravated by specific movements

Treatment Approach

More targeted blocking positions address the localised problem, with specific adjustments directed at involved spinal segments.

The Relationship Between Categories

Patients may change categories over time. SOT practitioners re-evaluate category indicators at each visit, adjusting treatment based on current presentation.

Generally, Category I patterns are addressed first when present, as they represent the most fundamental level of dysfunction.

What Patients Should Know

• The category system guides treatment, not diagnosis
• Categories can change between visits
• Not all SOT practitioners use categories extensively

When to See Your GP

Seek medical evaluation for progressive neurological symptoms, loss of bladder/bowel control, severe trauma, fever with back pain, unexplained weight loss, or history of cancer.