Why does trabecular bone at the femoral neck fail earlier than cortical bone during a hip impact?

💡 Explanation

Trabecular bone fails earlier because it undergoes micro-damage accumulation under cyclic loading, resulting in reduced fatigue resistance, therefore, trabecular bone is more susceptible to fracture during impact events, rather than the piezoelectric properties, vascularity, or collagen cross-linking.

• A patient with damage to their preoptic area experiences hyperthermia; why does this hypothalamic damage cause elevated body temperature?
• Why does replicative senescence occur in human somatic cells with each division, leading to increased susceptibility to age-related diseases?
• Why does increased mast cell activity cause bronchospasm during an asthma attack?
• If a burn injury damages the reticular dermis, why does long-term skin regeneration often result in hypertrophic scarring rather than complete restoration?
• In rheumatoid arthritis, what causes the persistence of inflammation, despite the presence of anti-inflammatory cytokines?
• Why does bone mineral density increase with weight-bearing exercise, rather than decrease?