Quiz on the Femur Anatomy

What portion of the femur does the distal part encompass?

• The upper one-third

• The middle one-third

• The lower one-third

• The entire femur

How long does the distal part of the femur vary between?

• 5 cm and 10 cm

• 7.6 cm and 15 cm

• 10 cm and 20 cm

• 12 cm and 18 cm

What is the suprcondylar area of the femur?

• A muscle attachment zone

• A transition zone between the distal diaphysis and the femoral articular surface

• The main weight-bearing area

• The area with the highest bone density

What forces is the distal femur subjected to?

• The biceps force anteriorly and the triceps force posteriorly

• The hamstring force anteriorly and the quadriceps force posteriorly

• The quadriceps force anteriorly and the flexion force of the gastrocnemius posteriorly

• The adductor force anteriorly and the abductor force posteriorly

What percentage of all femoral fractures does the distal femur fracture account for?

• 5 percent

• 7 percent

• 10 percent

• 12 percent

The fractures of the distal femur can be classified into which of the following types?

• Supracondylar, intercondylar, and transcondylar

• Supracondylar, unicameral, and comminuted

• Supracondylar, unicondylar, and intercondylar

• Supracondylar, unicondylar, and comminuted

Which of the following is NOT a mechanism of injury for femoral fractures?

• Severe valgus or varus forces with axial loading and rotation due to MVA

• Fall

• Sporting Injury

• Repetitive stress activities

What is specific to femoral fractures that differentiates it from other fractures?

• The extension deformity caused by the pull of quadriceps

• The flexion deformity caused by the pull of gastrocnemius

• The rotation deformity caused by the pull of hamstrings

• The abduction deformity caused by the pull of adductors

What is commonly seen with fractures extending into the joint?

• Osteoporosis

• Hemarthrosis

• Myositis

• Bursitis

Which views are required for radiograph imaging to study the fracture pattern of femoral fractures more accurately?

• AP, lateral and transverse (30°) views

• AP, medial and oblique (45°) views

• AP, lateral and oblique (45°) views

• AP, posterior and axial (60°) views