Acute hematogenous osteomyelitis has a predilection for the metaphysis of long bones this is because (AIIMS May 2010)
|A||Peculiar arrangement of the blood vessels in that area|
|B||The metaphysis is subject to trauma|
|C||The number of macrophages in the metaphysis in lesser when compared to the diaphysis|
|D||All to the above|
All to the above
a. Organisms usually settle in the metaphysis most often at the proximal end of the femur.
b. The predilection of the metaphysis has been attributed to the peculiar arrangement of the blood vessels in that area. The non-anastomotic terminal branches of the nutrient artery twist back in hair pain loops before entering the large network of sinusoidal veins the relative vascular stasis favors bacterial colonization.
c. Other cases are relative lack of macrophages in the metaphysis