Advanced Lesser Trochanter Quiz

Q1. What is the usual mechanism of an isolated lesser trochanter avulsion fracture in an adolescent?

• Inversion of the ankle
• Contraction of quadriceps at the patella
• Forceful contraction of iliopsoas
• Traction from the Achilles tendon

Q2. Why are lesser trochanter avulsion injuries more characteristic of skeletally immature patients?

• The unfused apophysis is vulnerable to iliopsoas traction
• Adults have no iliopsoas tendon
• The apophysis forms only after skeletal maturity
• The lesser trochanter is absent in adults

Q3. Why can an isolated lesser trochanter fracture in an adult require careful evaluation?

• It always represents normal ossification
• It proves an ACL tear
• It may indicate an underlying pathologic bone process
• It is a normal feature of aging

Q4. How can displacement of the lesser trochanter affect hip flexion mechanics?

• It prevents ankle plantarflexion
• It can alter iliopsoas attachment and mechanical efficiency
• It directly disrupts the quadriceps tendon
• It changes the attachment of the patellar ligament

Q5. Why is the lesser trochanter an important landmark in proximal femoral fracture assessment?

• It defines the ankle mortise
• It helps characterize intertrochanteric and subtrochanteric fracture anatomy
• It identifies the tibial plateau
• It determines meniscal tear location

Q6. Why is posteromedial comminution near the lesser trochanter important in intertrochanteric fractures?

• It affects only the ankle
• It makes the patella unstable
• Loss of posteromedial support can increase fracture instability
• It strengthens the medial femoral neck

Q7. How can the lesser trochanter assist assessment of femoral version or rotational positioning on imaging?

• It is fixed to the pelvis rather than the femur
• Its posteromedial projection changes in profile with femoral rotation
• It remains visually identical at every rotation
• It rotates independently of the femur

Q8. Why can iliopsoas-related pain be anatomically associated with the lesser trochanteric region?

• The Achilles tendon inserts there
• The iliopsoas tendon inserts in this region
• The gluteus medius inserts there
• The ACL attaches there

Q9. What is the developmental significance of fusion of the lesser trochanteric apophysis?

• It separates the femur from the hip joint
• It forms the knee meniscus
• It marks incorporation of the secondary ossification center into the mature femur
• It creates the femoral head

Q10. Which statement best integrates the anatomy of the lesser trochanter?

• It is a posteromedial proximal femoral process important for iliopsoas attachment, hip mechanics, development, imaging, and fracture assessment
• It is a distal femoral articular surface of the knee
• It is a lateral pelvic process for gluteus medius attachment
• It is a tibial prominence receiving the patellar ligament