Acetabulum

Question 1

Posterior-superior zone (acetabulum)

Answer 1

Safe zone (sciatic n, superior gluteal n/a/v)

Question 2

Anterior-superior zone (acetabulum)

Answer 2

Danger zone (External iliac a/v)

Question 3

Posterior-inferior zone (acetabulum)

Answer 3

Caution zone (screws must be <20mm; sciatic n, inf gluteal n/a/v, internal pudendal n/a/v)

Question 4

Anterior-inferior zone (acetabulum)

Answer 4

Danger zone (Obturator n/a/v)

Question 5

Radiographic makeup of teardrop

Answer 5

Cotyloid fossa and quadrilateral surface

Question 6

Best approach for posterior wall/column

Answer 6

Kocher-Langenbeck (posterior)

Question 7

Best approach for both columns with posterior comminution

Answer 7

Iliofemoral

Question 8

Best approach for isolated anterior wall/column

Answer 8

Ilioinguinal

Question 9

Best approach for both columns with nondisplaced posterior column

Answer 9

Ilioinguinal

Question 10

Best approach for quadrilateral plate

Answer 10

Modified Stoppa

Question 11

Best approach for transverse w posterior wall

Answer 11

Kocher langenbeck