Chapter 8 Lower Extremity Somatic Dysfunctions

Question 1

Posterior fibular head foot positions?

Answer 1

Talus internally rotated causing foot to invert and plantarflex

Question 2

Anterior fibular head foot positions?

Answer 2

Talus externally rotated causing foot to evert and dorsiflex

Question 3

What nerve lies directly posterior to the proximal fibular head?

Answer 3

Common peroneal nerve (injured in posterior fibular head SD)

Question 4

Pathophysiology of patello-femoral syndrome?

Answer 4

Imbalance of musculature of quads (strong vastus lateralis and weak vastus medialis) causing patella to deviate laterally due to larger Q angle

Question 5

S/S of patello-femoral syndrome?

Answer 5

Deep knee pain esp when climbing stairs, atrophy of vastus medialis, patellar crepitus

Question 6

Lower leg compartments?

Answer 6

Anterior, lateral, deep posterior, superficial posterior

Question 7

Which compartment is most commonly affected in compartment syndrome?

Answer 7

Anterior

Question 8

S/S of compartment syndrome (anterior)?

Answer 8

Tibialis anterior m is head and tender to palpation, pulse are present, stretching muscle causes extreme pain

Question 9

O’Donahue’s triad (terrible triad)?

Answer 9

ACL, MCL, medial meniscus