Orthonotes
Orthonotes
by the.bonestories
v3.0 Fusion
v3.0 Fusion
trauma topic hub

Intertrochanteric Fractures — AO/OTA

AO 31-A: A1 simple, A2 comminuted, A3 reverse oblique. Implants: DHS for stable A1/A2, CMN for unstable A2/A3. TAD

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AO 31-A: A1 simple, A2 comminuted, A3 reverse oblique. Implants: DHS for stable A1/A2, CMN for unstable A2/A3. TAD <25 mm; calcar support key. Complications: cutout, peri-implant fracture.
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Question 1

Which AO/OTA classification type represents a simple two-part intertrochanteric fracture?

Question 2

In which of the following scenarios is a cephalomedullary nail (CMN) indicated for intertrochanteric fracture fixation?

Question 3

What is the maximum acceptable TAD (Tip-Apex Distance) to minimize the risk of screw cut-out in intertrochanteric fractures?

Question 4

What is the primary goal of surgical management in intertrochanteric fractures?

Question 5

What is a common complication associated with intertrochanteric fractures treated with dynamic hip screw (DHS)?

Question 6

Which type of intertrochanteric fracture is characterized by comminution and posteromedial involvement?

Question 7

In elderly patients, what is the typical mechanism of injury for intertrochanteric fractures?

Question 8

What imaging modality is typically used to assess complex intertrochanteric fractures?

Question 9

Which muscle primarily acts to flex and externally rotate the proximal fragment in intertrochanteric fractures?

Question 10

What is the recommended timing for surgical intervention in intertrochanteric fractures?