The Fate of Demineralized Human Osteosarcoma in Rat's Muscle Pouch / 대한정형외과학회잡지

Demineralized homogenous bone matrix is reported to have no antigenic activity and its osteoinductive prcoess is faster than that of undemineralized homogenous bone. The present authors studied on the osteoinduction of demineralized human osteosarcoma in rat's muscle pouch. The results showed that demineralized human osteosarcoma tissue can induce new bone though there were inflammatory signs and giant. cell reaction. The osteoinductive process seemed to be delayed compared to that of demineralized homogenous bone matrix. The authors believed that further immunological investigations are needed to clarify the cause of these tissue response.

Cysticercosis of the Spine / 대한정형외과학회잡지

Cysticercosis which very rarly involves spinal canal, may show symptoms similar to herniated nucleus pulposus and cord tumor, and even myelogram may not be helpful for the accurate diagnosis. In this paper, a case in which free floating larvae of taenia solium mimicking intradural tumor by myelogram and clinical symptoms were presented. The present authors feel that cysitcercosis has to be considered as a cause when there is central filling defect of contrast media in myelogram.