Injuries result because of repetitive/prolonged muscular action on bones causing periosteal resorption outstripping rate of remodeling causing microfractures, cortical cracks and overt cortical fracture
if the physical stress is not discontinued.
Several nondisplaced vertical cortical fractures
, 2 3 per section, were seen with varying extents of bone formation.
Bone turnover in bone biopsies of patients with low-energy cortical fractures
receiving bisphosphonates: A case series.
Because of the open latticework of trabeculae in cancellous bone, penetration by new bone-forming tissue is achieved more easily than in cortical fractures