Experimental Study on Anatomic Reduction of Lateral Pterygoid Muscle(Simulated Manipulation Fracture Reduction)and Condylar Free Reduction for Condylar Fracture
作者机构：Suzhou TCM Hospital Affiliated to Nanjing University of Chinese MedicineSuzhou 215009China
出 版 物：《Medicinal Plant》 (药用植物：英文版)
年 卷 期：2023年第14卷第5期
页 面：78-81页
学科分类：1008[医学-中药学(可授医学、理学学位)] 1006[医学-中西医结合] 100602[医学-中西医结合临床] 10[医学]
基 金：Supported by The 28 th batch of science and technology development plan(Medical and Health Science and Technology innovation)project of Suzhou in 2022(SKY2022058) The Ninth Batch of Suzhou Gusu Health Key Talents Project(GSWS2022107) Key Laboratory of Bone Injury of Traditional Chinese Medicine(JSDW202253,SZS2022019) Suzhou Science and Technology Bureau Science and Technology Development Plan(Agricultural Science and Technology Innovation)Project(SNG2020063)
主 题：Condylar fracture Anatomic reduction lateral pterygoid muscle Condylar free reduction Blood supply reconstruction Fracture healing
摘 要：[Objectives]To compare the fracture healing of keeping lateral pterygoid muscle anatomic reduction(simulated manipulation fracture reduction)with condylar free reduction in the treatment of condylar fractures.[Methods]Twenty-four New Zealand rabbits were randomly divided into two groups to mandibular condylar neck fracture model was *** team keep the lateral pterygoid muscle,the other excise *** vascular perfusion was done with ink before animals executed after operation 2,4,6 and 8 *** anteroposterior and mediolateral condylar diameters *** of operation side condylar proliferating layer,microvessel number and bone parameters were observed and analyzed after slices and HE staining.[Results]The mediolateral condylar diameters of operation side were significantly smaller than health side in condylar free reduction group at the 4,6,8 weeks(P0.05).There were no significant differences in the anteroposterior and mediolateral condylar diameters of the anatomic reduction lateral pterygoid muscle group compared between the operation side and health side(P0.05).The number of microvessel in condylar free reduction group were smaller than those in anatomic reduction lateral pterygoid muscle group(P0.05).There were significant differences in BV/TV,***,*** between the condylar free reduction group and the anatomic reduction lateral pterygoid muscle group(all P0.05),and the Tb.N were significantly differences between two groups at the 4,6,8 weeks(P0.05).[Conclusions]When the condyle is fractured it should keep lateral pterygoid muscle(manipulation fracture reduction)as possible,which is important in the fracture healing and functional recovering of mandibular.
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