The Journal of Bone and Joint Surgery, Vol 64, Issue 6 888-895, Copyright © 1982 by Journal of Bone and Joint Surgery, Inc
Modification of fracture repair with selected pulsing electromagnetic fields
CA Bassett, MG Valdes and E Hernandez
We assayed different pulsing electromagnetic fields for their effects on
the mechanical and histological repair properties of an osteotomy of the
radius of the rat fourteen days postoperatively. Highly significant
differences were found in the control and experimental initial load values
and their decay as a function of time. These results correlate well with
the histological pattern in the bridging callus. A pulse that produces an
increase (above the control level) in initial load by a factor of 2.4 and a
slower decay was characterized by more extensive calcification of
fibrocartilage and its replacement by fibrous bone at this early, but
important, stage in fracture-healing.