Application of Korean Mechanical 3D Bone Model to the MADYMO(R) / 대한법의학회지

MADYMO(R) (Mathematical Dynamic Models) is a computer software with a multibody dynamics solver, which can be employed to reconstruct and interpret dynamic motions of the human body in impacts. The human model of the software is composed of many ellipsoidal structures, which makes it possible to interpret dynamic whole-body motions and calculate applied forces to human body parts. However, this model has some disadvantage to interpret injuries of the smaller body parts such as ribs, vertebral bodies or intervertebral discs. After achieving the finite element bone model produced by CT and software BIONIX BODYBUILDER(R) (finite element modeller), we tried to import this model into the MADYMO(R) and parts of the human bone model were successfully imported to it. Importing of the whole bone model was, however, impossible because of the numerous elements. The coming experiments need to reduce the number of elements in the whole human bone model and incorporate ligaments, tendons and muscles into each separated part of bone models.

Sudden Unexpected Death Due to Medulloblastoma / 대한법의학회지

The majority of deaths due to intracranial tumors are preceded by long periods of symptoms, resulting in diagnosis of the tumors. And introduction of CT and MRI have led to increased early detection of intracranial tumors. Nonetheless, sudden unexpected deaths from intracranial tumors are rarely encountered at autopsy. We report an autopsy case of 2-year-old boy who died from medulloblastoma.

A Case Study for the Reconstruction of Crime Scene by Computer Simulation / 대한법의학회지

Especially in design of automobile, there are many professional softwares based finite element or multi-body like Madymo, Pam-Crash, Ansys. These program have been released almost every car maker and university. Also in accident reconstruction fields, there are some softwares like PC-Crash, HVE was developed. Unfortunately these programs for accident reconstruction are so general and its input data are so limited, it is very difficult or even impossible to analyze some special cases. In this study, we reconstruct two crime scenes using Madymo program. Although this program was developed for design of car, we apply to crime scene reconstruction. First case is regarding traffic accident. A car was fell under 5m from the road and turn over and then move about 40m. Finally the driver eject from the car. Second case is regarding suicide by hanging. When the police investigate the crime scene at first time, they assume that this crime is a murder case but we carried out autopsy and investigated the crime scene again and analyzed by computer simulation and finally find out this crime is suicide case not murder.