Which type of bone is most affected by Type 2 Primary Osteoporosis?

• A. More trabecular bone
• B. More cortical bone
• C. Bone mass density
• D. Articular bone

Answer: (B)

Type 2 Primary Osteoporosis, also known as senile osteoporosis, primarily affects the balance of bone remodeling and the overall structure of the skeletal system. In this condition, cortical bone is notably impacted.

Cortical bone, which is dense and forms the outer layer of the bones, tends to fracture easier in individuals with Type 2 Primary Osteoporosis due to the decline in bone density and the changes in mechanical properties associated with aging. The deterioration in the trabecular architecture leads to an increased risk of vertebral and hip fractures, but the primary concern in Type 2 is the loss of cortical bone.

Trabecular bone also plays a role in osteoporosis, especially in Type 1 Primary Osteoporosis, but with Type 2, the predominance of the effect shifts to cortical bone. The focus on cortical bone highlights the importance of understanding fracture risks associated with aging and the need for monitoring and treatment strategies that can benefit older populations at risk.