Surgery>>>>>Wound Healing
Question 6#

When a long bone fracture is repaired by internal fixation with plates and screws:

a. Callus at the fracture site forms more rapidly
b. Delayed union is prevented
c. Direct bone-to-bone healing occurs without soft callus formation
d. Endochondral ossification is more complete

Correct Answer is C

Comment:

Precise fracture reduction and fixation allows the fracture to heal bone-to-bone without the soft callus formation and endochondral ossification, which are characteristic of closed fracture management. However, internal reduction does not prevent delayed union, especially when infection or poor blood supply are present.