颞颌关节软骨和关节盘的水和胶原的含量分析

Contents of Water and Collagen in Different Sites of the Temporomandibular Joint Cartilage and Disc

水和胶原是关节软骨的主要成分,对颞颌关节的含量分析尚未见报道。本文分析测定了10只健康杂种狗颞颌关节窝的后突区、前内侧区和前外侧后,髁突的前后区和关节盘前中后三区的水和胶原的含量。结果表明关节盘的水含量为61.63%,与膝半月板相似,但明显小于关节窝软骨(70%)和髁突软骨(67.54%),关节盘的胶原含量为56.53%(占干重)却高于关节窝软骨(51.96%)和髁突软骨(48.59%),但关节软骨和关节盘各区域的水和胶原含量差别很小。

Contents of water and collagen in different regions of the temporomandibular jointfossa cartilage,condylar cartilage and disc in ten healthy dogs were studied.The resultsobtained were as follows:1)The above contents of different sites of cartilage and disc hada few difference respectively,2)61.63 percent water contained in the disc,which was sim-ilar to that of knee meniscus,was significantly less than that of fossa cartilage (7o perc-ent) and condylar cartilage (67.54 percent),3)The content of collagen in disc was 56.53percent (dry cartilage)and it was more than that of fossa cartilage 51.96 percent) andcondylar cartilage (48.59 percent).