Development of Upgraded Cortical Impact Model (Part II: Functional outcome).

Choi, Seok Min; Suk, Jong Sik; Min, Byung Kook; Hwang, Sung Nam; Kim, Young Baeg; Kim, Jae Hyun

Original Article

Journal of Korean Neurosurgical Society 2002;32(5): 458-462.

Seok Min Choi, Jong Sik Suk, Byung Kook Min, Sung Nam Hwang, Young Baeg Kim, Jae Hyun Kim

¹Department of Neurosurgery, Chung-Ang University School of Medicine, Seoul, Korea. nsseokmin@hotmail.com
²Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology(KAIST), Daejeon, Korea.

ABSTRACT

OBJECTIVE
With the technical support from department of mechanical engineering, Korea Advanced Institute of Science and Technology(KAIST), we began to develop a better head trauma model named "Chung-Ang University Hospital Model 1.0(CAUH-1)" in March 2001 and completed it August 2001. In addition, we conduct functional tests(postural reflex, balance beam test, rotarod test, and etc) to verify this model.
METHODS
Twelve four hours after moderate head injury(air tank pressure : 125psi, impact velocity: 1.34m/sec, depth of deformation : 2.5mm, dwell time : 84.5msec), we conducted various functional tests. Then, we compared the results with those of sham group.
RESULTS
Using this device, we revive neurobehavioral changes(decreased reflexes, hemiparesis, decreased vestibulo-motor function) occuring after human head trauma.
CONCLUSION
In our opinion, this is a very useful experimental head trauma model and will be helpful to many head trauma researchers.

Key Words: Functional tests; Chung-Ang University Hospital Model; KAIST