SIJ Dysfunction

Question 1

SIJ Dysfunction Overview

Answer 1

• Caused by abnormal motion
• Main function within this joint is to provide shock absorption for spine and transmit forces between upper and lower body
• This joint experiences shearing, torsion, rotation, and tension
• Only joint connecting upper and lower body
• Relatively stiff synovial joint filled with synovial fluid

Question 2

SIJ Dysfunction Causes

Answer 2

• Repetitive microtrauma or acute trauma
• Pregnancy related
• Idiopathic

Question 3

SIJ Dysfunction Symptoms

Answer 3

• LBP
• Pain localized over buttock
• Sharp, stabbing, and/or shooting pain which extends down posterior thigh (not past knee)
• Difficulty sitting in one place too long d/t pain
• Local tenderness near PSIS
• Pain occurs when joint is stressed (forward bending)
• Pain while sitting down, lying on ipsilateral side of pain, or climbing stairs

Question 4

SIJ Dysfunction Special Tests

Answer 4

• Trendelenburg
• Leg Length Discrepancy
• Distraction
• Compression
• Thigh Thrust
• Sacral Thrust

Question 5

SIJ Dysfunction PT Treatment

Answer 5

• Strengthen core muscles and gluts
• Ice
• Anti-inflammatories
• Manual Therapy — SIJ Manipulation
• Stabilization — pelvic belt or sacroiliac binder