osteoplastic

I shall expose the third left frontal convolution of the brain through the fronto-parietal bone, and, in making the osteoplastic flap, I intend to leave a wide working margin above the size of the opening which may actually be necessary in order to reach the growth.

We get, therefore, in many cases, a condition of rarefactive ostitis occurring side by side with a slowly progressive caries within the bone, while outside is occurring an osteoplastic periostitis.

In other cases, however, the changes in the interior of the bone are accompanied by well-marked lesions on its gliding or postero-inferior surface, and by evidences of an osteoplastic periostitis along its edges.

Along its edges large osteophytic outgrowths speak of the effects of an osteoplastic periostitis.

The periostitis thus set up invariably takes the osteoplastic form, and as a result of this we have growths of new bone in the near neighbourhood of the joint.