Document Detail

Interface contact profiles of a novel locking plate and its effect on fracture healing in goat.
MedLine Citation:
PMID:  20670582     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE: To evaluate the interface characteristics of the new-designed locking plate (LP) and limited contact-dynamic compression plate (LC-DCP) and compare the fracture healing between LP and LC-DCP in a goat tibia fracture model.
METHODS: Eight-hole LP and LC-DCP were applied to fix fresh goat tibiae in a reproducible manner. The average pressure, force and interface contact area were calculated using Fuji prescale pressure sensitive film interposed among the plate and the bone and image analysis system. Eight-hole LP and LC-DCP were applied to each tibia in a goat tibia fracture model. The fracture healing was evaluated by X-ray photography at postoperative 8 weeks. The goats were sacrificed at postoperative 12 weeks. Three-point bending test was conducted in the tibiae.
RESULTS: The interface contact of LP system was smaller than that of LC-DCP (P < 0.05), while interface contact force of LP system was higher than that of LC-DCP (P < 0.05). Radiographs revealed that the fracture line disappeared in the LP group, while the fracture line was visible in DCP group at postoperative 8 weeks. At postoperative 12 weeks, the bending strength and bending load of fractured tibia were higher in LP group than in DCP group, respectively.
CONCLUSION: The new-designed locking plate can significantly decrease the contact area on the bone interface, which further provides better fracture healing than conventional plates.
Da-cheng Wei; Yu-feng Zhao; Shu-xing Xing; Ai-min Wang
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Chinese journal of traumatology = Zhonghua chuang shang za zhi / Chinese Medical Association     Volume:  13     ISSN:  1008-1275     ISO Abbreviation:  Chin. J. Traumatol.     Publication Date:  2010 Aug 
Date Detail:
Created Date:  2010-07-30     Completed Date:  2010-11-22     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  100886162     Medline TA:  Chin J Traumatol     Country:  China    
Other Details:
Languages:  eng     Pagination:  240-3     Citation Subset:  IM    
Longchang Hospital, Luzhou Medical College, Longchang County 642150, Sichuan Province, China.
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MeSH Terms
Bone Plates*
Fracture Fixation, Internal
Fracture Healing*
Internal Fixators
Tibia / physiopathology
Tibial Fractures / physiopathology,  surgery*

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