[Internal fixation for zygomatic arch fracture with super-high molecular weight poly D, L-lactic acid mini-plates and screws: a study in dogs].
OBJECTIVE
To investigate the internal fixation effects of super high molecular weight (Mv = 6.0 x 10(5) kD) poly D, L-lactic acid(PDLLA) mini-plates and screws.


METHODS
10 dogs were utilized in this experiment with the self-contrast study method, comparing with the titanium mini-plates and screws.


RESULTS
The mechanical properties of the PDLLA mini-plates and screws appeared to be sufficient to enable undisturbed healing of depressed zygomatic arch fracture.


CONCLUSIONS
The good fixation effect of PDLLA mini-plates and screws was as same as that of the titanium mini-plates and screws without the need of secondary operation.
Wei
S
S
College of Stomatology, West China University of Medical Sciences.
Zheng
Q
Q
Zhao
Z
Z
Liu
L
L
Li
S
S
Wang
H
H
Xiong
C
C
Deng
X
X
Luo
F
F
Luo
C
C
D000818:Animals; D001672:Biocompatible Materials; D001673:Biodegradation, Environmental; D001860:Bone Plates; D001863:Bone Screws; D004285:Dogs; D005260:Female; D005593:Fracture Fixation, Internal / Q000295:instrumentation*; D008297:Male; D008970:Molecular Weight; D011091:Polyesters / Q000737:chemistry; D015051:Zygomatic Fractures / Q000601:surgery*
D001672:Biocompatible Materials; D011091:Polyesters; C033616:poly(lactide)