Comparison of interface contact profiles of a new minimum contact locking compression plate and the limited contact dynamic compression plate.
In this study, we investigated whether or not a new minimum contact locking compression plate (MC-LCP) can provide advantages over the limited contact dynamic compression plate (LC-DCP) in the context of interface contact area and force. Six matched pairs of cadaveric bones were used for each of three bone types of the humerus, radius and ulna. For each bone type, one of two bone plates was fixed to either of two matched cadaveric bones at the middle of the diaphysis. The interface contact area and force of the plate fixed to three types of human cadaveric bones were evaluated using Fuji prescale pressure sensitive film. Data were quantitated using computer-assisted image analysis. Results showed that the average force between the MC-LCP and humerus or radius was about half of that of the LC-DCP. And the average force between the MC-LCP and ulna was one third less than that of the LC-DCP. Meanwhile, the interface contact area between the MC-LCP and humerus or radius was also about half of that of the LC-DCP, and the interface contact area between the MC-LCP and ulna was less than one third of that of the LC-DCP. These results indicate that the MC-LCP has lower interface contact area and lower average force than that of the LC-DCP. Thus, the MC-LCP system may be a good alternate to treat forearm diaphyseal fractures.
Xiong
Yan
Y
Department of Orthopaedics, Daping Hospital, The Third Military Medical University, 10 Changjiang Branch Road, Yuzhong District, Chongqing 400042, People's Republic of China.
Zhao
Yu Feng
YF
Xing
Shu Xing
SX
Du
Quan Yin
QY
Sun
Hong Zhen
HZ
Wang
Zi Ming
ZM
Wu
Si Yu
SY
Wang
Ai Min
AM
D000328:Adult; D001860:Bone Plates; D001842:Bone and Bones / Q000601:surgery*; D002102:Cadaver; D019544:Equipment Failure Analysis; D005260:Female; D005593:Fracture Fixation, Internal / Q000295:instrumentation* / Q000379:methods; D006801:Humans; D006811:Humerus / Q000601:surgery; D007091:Image Processing, Computer-Assisted; D008297:Male; D008875:Middle Aged; D011312:Pressure; D011474:Prosthesis Design; D011884:Radius / Q000601:surgery; D014457:Ulna / Q000601:surgery; D016474:Weight-Bearing