Lateral neck

Question 1

Discuss pseudosubluxation of the c-spine

Answer 1

s the physiological anterior displacement of C2 on C3 in children
Common in children nunder < 7 years
Due to immature lax ligaments

Question 2

Discuss Swishcuks line

Answer 2

Drawn from the anterior aspect of the posterior arch of C1 to the anterior aspect of the postertior arch of c3

the anterior aspect of posterior arch of C2 should be within 1-2 mm of this line:

• if deviated less than 2 mm: it is consistent with pseudosubluxation, but this alone is insufficient to rule out a hangman fracture
• if deviated more than 2 mm: it is indicative of true subluxation