Trochanteric fracture etiology mechanism of injury associated injury c

Trochanteric fracture etiology mechanism of injury associated injury classification signs and symptoms and investigations and evaluation treatment explain in detail with appropriate illustrative diagrams and images

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This comprehensive review covers all aspects of trochanteric fractures based on Rockwood and Green's Fractures in Adults (10th Ed. 2025) and Campbell's Operative Orthopaedics (15th Ed. 2026). Here is a quick summary of what was covered:

Key Takeaways:

Etiology - Primarily osteoporosis + fall from standing height in elderly women (mean age ~80); high-energy mechanisms in young patients
Mechanism - Direct impact to the greater trochanter causes the fracture; deforming muscle forces (gluteals + iliopsoas) produce the classic shortened, externally rotated limb
Classification (AO/OTA):
- 31.A1 - Simple 2-part, stable, intact lateral wall
- 31.A2 - Comminuted, unstable, detached lesser trochanter
- 31.A3 - Reverse oblique/transverse, highly unstable, lateral wall disrupted
Associated injuries - ~4% have another fracture (wrist 2%, humerus 1%); always screen for head trauma (21% warrant CT head)
Signs - Hip pain + inability to weight bear; shortened, externally rotated limb (absent in non-displaced fractures - look for axial compression pain)
Investigations - AP pelvis + lateral hip X-ray; MRI for occult fractures; CT as alternative; full pre-op labs
Treatment:
- A1: Sliding Hip Screw (DHS)
- A2/A3: Cephalomedullary nail (modern standard)
- Goal is same-day or next-day surgery with immediate post-op weight-bearing

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