. Journal of roentgenology . thoutperiosteum transplanted into the living body to performthe function of bone will retain its vitality and transplanted into a living body, not of physiological use,it will be absorbed. Injury to the bone with loss of its continuity is usuallyfollowed by union if conditions are favorable. Fibroustissue fills in the gaps, paving the way for or less of an external callus is formed, dependingupon the immobilization of the part as well as the degree ofseparation of the periosteum from the underlying bone. 303 304 THE JOURNAL OP ROENTGEN
. Journal of roentgenology . thoutperiosteum transplanted into the living body to performthe function of bone will retain its vitality and transplanted into a living body, not of physiological use,it will be absorbed. Injury to the bone with loss of its continuity is usuallyfollowed by union if conditions are favorable. Fibroustissue fills in the gaps, paving the way for or less of an external callus is formed, dependingupon the immobilization of the part as well as the degree ofseparation of the periosteum from the underlying bone. 303 304 THE JOURNAL OP ROENTGENOLOGY Opportunity to study the structure of bone, its physiolog-ical and pathological changes by the roentgen rays is oneof the great advantages we have at the present time. Thequality of bone and its power to regenerate is markedlyaffected by the physical condition of the individual. Pyo-genic infection will destroy bone, but regeneration aftersuppuration has ceased and necrotic material has been re-moved, is usually PLATE 1 shows the spontaneous regeneration of the entire diaphysis ofthe tibia, which had become necrosed through the action of pyogenic bac-teria. This plate was taken five years after removal of infectious has the appearance of normal bone. The periosteum presents a somewhatroughened appearance and the medullary canal is slightly irregular in out-line. The muscular development and the solidity of the bone indicate agood functional result. BONE REGENERATION —SAUNDERS 305
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectradiolo, bookyear1919
