Smith 2

Question 1

describe the types of contrast

Answer 1

• Positive contrast = iodinated radiopaque material
  
  • risk of allergie (shellfish)
• Negative contrast = air
  
  • use if allergic to iodine

Question 2

technique of anthrography

Answer 2

1. inject lidocaine over site
2. sterile betadine prep and sterile technique
3. enter ankle with a 23 gauge needle just medial to the tibialis anterior tendon
4. inject 8-10cc of contrast material
5. Passive ROM of ankle
6. examine under fluroscopy

Question 3

Abnormal vs normal findings

Answer 3

• Normal = smooth and deleanited
• Abnormal
  
  • EXTRAVASATION of contrast beyond the confines of the joint
  • Calcaneal fibular ligament tear with contrast in the peroneal tendon sheath

Question 4

Tenography

Answer 4

• uses contrast injected into tendon sheaths to diagnose inflammatory or posttraumatic conditions

Question 5

Technique for tenography

Answer 5

• same as arthrogram just much harder

Question 6

tenography indications

Answer 6

• CFL tears
  
  • more accurate than arthrogram
• Tendon subluxation or dislocation
• tendon stenosis
• tendon rupture