At what point in the healing process after reduction of a fracture is immobilization usually discontinued and exercise permissible so long as stress is not placed across the fracture site?
A) When callus formation begins to develop
B) At the stage of radiographic union
C) When delayed union has been achieved
D) At the stage of clinical union

Question

Quizplus · Accepted Answer

Immobilization is usually discontinued and exercise is permitted at the stage of clinical union, which is when there is enough bony union to allow the fracture site to bear weight without risk of displacement or deformity, even before complete radiographic union or callus formation has occurred. Delayed union means that the healing process is taking longer than expected, and stress may need to be limited even if clinical union is achieved.

At What Point in the Healing Process After Reduction of a Fracture