ABFAS - TRAUMA SECTION | MULTIPLE-CHOICE REVIEW
ABFAS - TRAUMA SECTION
MULTIPLE-CHOICE REVIEW
107 Practice Questions with Correct Answers & Source-Based Rationales
Focused trauma review: Achilles tendon, ankle fractures, calcaneus,
pediatric trauma, open wounds, MTP dislocations, talus, burns, and soft-
tissue classification.
STUDY FORMAT
Question • Four related choices • Correct answer • Concise rationale
Educational review material. Not affiliated with ABFAS.
Page 1
,ABFAS - TRAUMA SECTION | MULTIPLE-CHOICE REVIEW
Table of Contents
The review is organized by the topic sequence in the supplied trauma material.
SECTION QUESTIONS
1. Achilles Tendon & Posterior Leg Anatomy 1-13
2. Ankle Ligament Anatomy & Stability 14-25
3. Ankle Fractures, Lauge-Hansen & Fixation 26-48
4. Calcaneus, Compartment Syndrome & Reduction 49-57
5. Sutures & Pediatric Physeal Trauma 58-70
6. Open Fractures & Soft-Tissue Injury 71-77
7. First MTP Joint Dislocations 78-83
8. Osteochondral Injury & Talar Blood Supply 84-90
9. Hawkins Talar Neck Fractures 91-96
10. Thermal Injury & Burns 97-103
11. Tscherne Soft-Tissue Classification 104-107
Format note: Each correct answer and rationale follows the facts and pairings in the supplied ABFAS - Trauma Section
material.
Page 2
,ABFAS - TRAUMA SECTION | MULTIPLE-CHOICE REVIEW
1. Achilles Tendon & Posterior Leg Anatomy
Questions 1-13
1. Achilles tendon rupture is likely to occur in this position
A. Skiers
B. Sprinters
C. Marathon runners
D. Patients with a neutral-position inversion injury
Correct Answer: B. Sprinters
Rationale: The source identifies sprinters as the position/activity group associated with Achilles tendon rupture.
2. Gastroc-soleal complex is enervated by:
A. L4, L5, S1
B. Posterior tibial artery
C. Tibial nerve (S1-S2)
D. Deltoid branch
Correct Answer: C. Tibial nerve (S1-S2)
Rationale: The source states that the gastroc-soleal complex is innervated by the tibial nerve at S1-S2.
3. Runs between the gastrocnemius and soleus. Assists in plantarfexion of the foot and flexion
of the knee
A. Plantaris
B. Achilles tendon
C. FDL and tibialis posterior
D. Gastroc-soleal complex
Correct Answer: A. Plantaris
Rationale: The plantaris runs between the gastrocnemius and soleus and assists plantarflexion of the foot and
flexion of the knee.
4. Nerve enervation of the plantaris
A. Tibial nerve (S1-S2)
B. Posterior tibial artery
C. Deltoid branch
D. L4, L5, S1
Correct Answer: D. L4, L5, S1
Rationale: The source gives L4, L5, and S1 as the nerve roots for the plantaris.
Page 3
, ABFAS - TRAUMA SECTION | MULTIPLE-CHOICE REVIEW
5. The narrowest part of the achilles tendon
A. 2-6 cm proximal to attachment
B. 4 cm proximal to its insertion
C. 10 cm proximal to the calcaneal insertion
D. 4-5 cm above the ankle joint line
Correct Answer: B. 4 cm proximal to its insertion
Rationale: The source places the narrowest portion of the Achilles tendon 4 cm proximal to its insertion.
6. An Achilles tendon rupture is likely to occur at what anatomical location?
A. 4 cm proximal to insertion
B. 10 cm proximal to the calcaneal insertion
C. 2-6 cm proximal to attachment (watershed area)
D. Inferior talar neck
Correct Answer: C. 2-6 cm proximal to attachment (watershed area)
Rationale: The source places the typical Achilles rupture in the 2-6 cm proximal watershed region near the
attachment.
7. Name the Test: squeezing of the calf muscle does not result in plantar flexion of the foot
A. Thompson Test
B. O'Brien Test
C. Fluorescein Test
D. Hawkin's sign
Correct Answer: A. Thompson Test
Rationale: Failure of plantarflexion when the calf is squeezed is identified in the source as a positive Thompson
test finding.
8. Name the Test: A 25 gauge needle is inserted at a right angle to the leg through the skin of
the calf muscle just medial to midline. This should be performed 10 cm proximal to the
calcaneal insertion of the Achilles tendon. Motion of the hub of the needle in a direction
opposite that of the tendon during passive dorsiflexion and plantarflexion of the foot confirms
an intact tendon distal to the level of needle insertion.
A. Thompson Test
B. Fluorescein Test
C. Hawkin's sign
D. O'Brien Test
Correct Answer: D. O'Brien Test
Rationale: The described needle-hub motion technique 10 cm proximal to the Achilles insertion is identified as
the O'Brien test.
Page 4
ABFAS - TRAUMA SECTION
MULTIPLE-CHOICE REVIEW
107 Practice Questions with Correct Answers & Source-Based Rationales
Focused trauma review: Achilles tendon, ankle fractures, calcaneus,
pediatric trauma, open wounds, MTP dislocations, talus, burns, and soft-
tissue classification.
STUDY FORMAT
Question • Four related choices • Correct answer • Concise rationale
Educational review material. Not affiliated with ABFAS.
Page 1
,ABFAS - TRAUMA SECTION | MULTIPLE-CHOICE REVIEW
Table of Contents
The review is organized by the topic sequence in the supplied trauma material.
SECTION QUESTIONS
1. Achilles Tendon & Posterior Leg Anatomy 1-13
2. Ankle Ligament Anatomy & Stability 14-25
3. Ankle Fractures, Lauge-Hansen & Fixation 26-48
4. Calcaneus, Compartment Syndrome & Reduction 49-57
5. Sutures & Pediatric Physeal Trauma 58-70
6. Open Fractures & Soft-Tissue Injury 71-77
7. First MTP Joint Dislocations 78-83
8. Osteochondral Injury & Talar Blood Supply 84-90
9. Hawkins Talar Neck Fractures 91-96
10. Thermal Injury & Burns 97-103
11. Tscherne Soft-Tissue Classification 104-107
Format note: Each correct answer and rationale follows the facts and pairings in the supplied ABFAS - Trauma Section
material.
Page 2
,ABFAS - TRAUMA SECTION | MULTIPLE-CHOICE REVIEW
1. Achilles Tendon & Posterior Leg Anatomy
Questions 1-13
1. Achilles tendon rupture is likely to occur in this position
A. Skiers
B. Sprinters
C. Marathon runners
D. Patients with a neutral-position inversion injury
Correct Answer: B. Sprinters
Rationale: The source identifies sprinters as the position/activity group associated with Achilles tendon rupture.
2. Gastroc-soleal complex is enervated by:
A. L4, L5, S1
B. Posterior tibial artery
C. Tibial nerve (S1-S2)
D. Deltoid branch
Correct Answer: C. Tibial nerve (S1-S2)
Rationale: The source states that the gastroc-soleal complex is innervated by the tibial nerve at S1-S2.
3. Runs between the gastrocnemius and soleus. Assists in plantarfexion of the foot and flexion
of the knee
A. Plantaris
B. Achilles tendon
C. FDL and tibialis posterior
D. Gastroc-soleal complex
Correct Answer: A. Plantaris
Rationale: The plantaris runs between the gastrocnemius and soleus and assists plantarflexion of the foot and
flexion of the knee.
4. Nerve enervation of the plantaris
A. Tibial nerve (S1-S2)
B. Posterior tibial artery
C. Deltoid branch
D. L4, L5, S1
Correct Answer: D. L4, L5, S1
Rationale: The source gives L4, L5, and S1 as the nerve roots for the plantaris.
Page 3
, ABFAS - TRAUMA SECTION | MULTIPLE-CHOICE REVIEW
5. The narrowest part of the achilles tendon
A. 2-6 cm proximal to attachment
B. 4 cm proximal to its insertion
C. 10 cm proximal to the calcaneal insertion
D. 4-5 cm above the ankle joint line
Correct Answer: B. 4 cm proximal to its insertion
Rationale: The source places the narrowest portion of the Achilles tendon 4 cm proximal to its insertion.
6. An Achilles tendon rupture is likely to occur at what anatomical location?
A. 4 cm proximal to insertion
B. 10 cm proximal to the calcaneal insertion
C. 2-6 cm proximal to attachment (watershed area)
D. Inferior talar neck
Correct Answer: C. 2-6 cm proximal to attachment (watershed area)
Rationale: The source places the typical Achilles rupture in the 2-6 cm proximal watershed region near the
attachment.
7. Name the Test: squeezing of the calf muscle does not result in plantar flexion of the foot
A. Thompson Test
B. O'Brien Test
C. Fluorescein Test
D. Hawkin's sign
Correct Answer: A. Thompson Test
Rationale: Failure of plantarflexion when the calf is squeezed is identified in the source as a positive Thompson
test finding.
8. Name the Test: A 25 gauge needle is inserted at a right angle to the leg through the skin of
the calf muscle just medial to midline. This should be performed 10 cm proximal to the
calcaneal insertion of the Achilles tendon. Motion of the hub of the needle in a direction
opposite that of the tendon during passive dorsiflexion and plantarflexion of the foot confirms
an intact tendon distal to the level of needle insertion.
A. Thompson Test
B. Fluorescein Test
C. Hawkin's sign
D. O'Brien Test
Correct Answer: D. O'Brien Test
Rationale: The described needle-hub motion technique 10 cm proximal to the Achilles insertion is identified as
the O'Brien test.
Page 4
