CAISS Combined Frequently Tested
Exam Questions With Verified Multiple
Choice and Conceptual Actual 100%
Correct Detailed Answers
Guaranteed Pass!!Current Update!!
1. Which structures form the two arches of the pelvic ring?
A. Iliac crest and pubic symphysis
B. Sacrum and acetabulum
C. Anterior arch and posterior arch
D. Ilium and ischium
2. The severity of a pelvic ring fracture is primarily related to which factor?
A. Degree of anterior arch widening
B. Extent of posterior arch disruption and resulting instability
C. Number of pubic ramus fractures
D. Patient age
3. What are the two structural columns of the acetabulum?
A. Superior and inferior columns
B. Iliac and ischial columns
C. Anterior and posterior columns
D. Medial and lateral columns
4. The structure extending from the anterior iliac crest to the pubis is the:
A. Posterior acetabulum column
B. Anterior acetabulum column
,C. Ischial column
D. Superior pubic column
5. The structure extending from the greater sciatic notch to the ischium is the:
A. Anterior acetabulum column
B. Posterior acetabulum column
C. Lateral acetabulum column
D. Iliac column
III. Acetabular Fracture Types
6. A partial articular acetabular fracture is described as:
A. Involving both columns with no remaining attachment to the ilium
B. Only involving the posterior column
C. One column fracture or transverse pattern with articular surface still attached
to the ilium
D. A fracture with associated femoral head dislocation
7. A complete articular acetabular fracture is defined as:
A. A fracture involving the anterior column only
B. A fracture with articular surface remaining attached to the ilium
C. Both columns disrupted with no articular attachment to the posterior ilium
remaining
D. A minimally displaced acetabulum fracture
IV. Terminology & Coding Concepts
8. In the AIS dictionary, certain lower extremity bone and joint injuries may
include:
A. Radiographic markers
B. Eponyms (italicized)
C. Dose modifiers
D. Genetic references
,9. Bilateral proximal amputations are assigned:
A. Two separate AIS codes
B. One AIS code only
C. AIS 9
D. The highest ISS score automatically
V. Pelvic Fracture Stability Classification
A. Partially Unstable Pelvic Fractures
10. Which of the following represents a partially unstable pelvic fracture?
A. Sacroiliac joint with posterior disruption
B. Symphysis pubis diastasis < 2.5 cm
C. Lateral compression fracture pattern
D. Vertical shear fracture
11. An “open book” pelvic injury with < 2.5 cm separation is classified as:
A. Stable
B. Partially unstable
C. Totally unstable
D. NFS
12. A sacral anterior compression fracture is considered:
A. Stable only
B. Partially unstable
C. Non-codeable
D. Totally unstable
B. Stable Pelvic Fractures
13. An isolated simple fracture of the pubic ramus is classified as:
A. Totally unstable
, B. Partially unstable
C. Stable pelvic fracture
D. Not codeable
14. A transverse fracture of the sacrum and coccyx (with or without
sacrococcygeal dislocation) is considered:
A. Stable pelvic fracture
B. Partially unstable
C. Totally unstable
D. A complete pelvic disruption
15. A minor symphysis pubis separation (< 2.5 cm) is classified as:
A. Partially unstable
B. Stable pelvic fracture
C. Totally unstable
D. NFS
C. Totally Unstable Pelvic Fractures
16. A sacroiliac joint with posterior disruption is considered:
A. Stable
B. Partially unstable
C. Totally unstable pelvic fracture
D. A low-grade injury
17. A classic vertical shear injury is categorized as:
A. Stable
B. Partially unstable
C. Totally unstable pelvic fracture
D. Open book injury
18. A pubic ramus fracture with sacroiliac fracture/dislocation is classified as:
A. Stable
B. Partially unstable
Exam Questions With Verified Multiple
Choice and Conceptual Actual 100%
Correct Detailed Answers
Guaranteed Pass!!Current Update!!
1. Which structures form the two arches of the pelvic ring?
A. Iliac crest and pubic symphysis
B. Sacrum and acetabulum
C. Anterior arch and posterior arch
D. Ilium and ischium
2. The severity of a pelvic ring fracture is primarily related to which factor?
A. Degree of anterior arch widening
B. Extent of posterior arch disruption and resulting instability
C. Number of pubic ramus fractures
D. Patient age
3. What are the two structural columns of the acetabulum?
A. Superior and inferior columns
B. Iliac and ischial columns
C. Anterior and posterior columns
D. Medial and lateral columns
4. The structure extending from the anterior iliac crest to the pubis is the:
A. Posterior acetabulum column
B. Anterior acetabulum column
,C. Ischial column
D. Superior pubic column
5. The structure extending from the greater sciatic notch to the ischium is the:
A. Anterior acetabulum column
B. Posterior acetabulum column
C. Lateral acetabulum column
D. Iliac column
III. Acetabular Fracture Types
6. A partial articular acetabular fracture is described as:
A. Involving both columns with no remaining attachment to the ilium
B. Only involving the posterior column
C. One column fracture or transverse pattern with articular surface still attached
to the ilium
D. A fracture with associated femoral head dislocation
7. A complete articular acetabular fracture is defined as:
A. A fracture involving the anterior column only
B. A fracture with articular surface remaining attached to the ilium
C. Both columns disrupted with no articular attachment to the posterior ilium
remaining
D. A minimally displaced acetabulum fracture
IV. Terminology & Coding Concepts
8. In the AIS dictionary, certain lower extremity bone and joint injuries may
include:
A. Radiographic markers
B. Eponyms (italicized)
C. Dose modifiers
D. Genetic references
,9. Bilateral proximal amputations are assigned:
A. Two separate AIS codes
B. One AIS code only
C. AIS 9
D. The highest ISS score automatically
V. Pelvic Fracture Stability Classification
A. Partially Unstable Pelvic Fractures
10. Which of the following represents a partially unstable pelvic fracture?
A. Sacroiliac joint with posterior disruption
B. Symphysis pubis diastasis < 2.5 cm
C. Lateral compression fracture pattern
D. Vertical shear fracture
11. An “open book” pelvic injury with < 2.5 cm separation is classified as:
A. Stable
B. Partially unstable
C. Totally unstable
D. NFS
12. A sacral anterior compression fracture is considered:
A. Stable only
B. Partially unstable
C. Non-codeable
D. Totally unstable
B. Stable Pelvic Fractures
13. An isolated simple fracture of the pubic ramus is classified as:
A. Totally unstable
, B. Partially unstable
C. Stable pelvic fracture
D. Not codeable
14. A transverse fracture of the sacrum and coccyx (with or without
sacrococcygeal dislocation) is considered:
A. Stable pelvic fracture
B. Partially unstable
C. Totally unstable
D. A complete pelvic disruption
15. A minor symphysis pubis separation (< 2.5 cm) is classified as:
A. Partially unstable
B. Stable pelvic fracture
C. Totally unstable
D. NFS
C. Totally Unstable Pelvic Fractures
16. A sacroiliac joint with posterior disruption is considered:
A. Stable
B. Partially unstable
C. Totally unstable pelvic fracture
D. A low-grade injury
17. A classic vertical shear injury is categorized as:
A. Stable
B. Partially unstable
C. Totally unstable pelvic fracture
D. Open book injury
18. A pubic ramus fracture with sacroiliac fracture/dislocation is classified as:
A. Stable
B. Partially unstable
