股骨髁髌股、胫股关节运动重叠接触区域测定  

Determination of common contact area and its use of the femur prosthesis design on the femoral condylar facet which patellofemoral and tibiofemoral join tsliding

作　　者：冯明光[1] 吴海山[1] 徐长明[1] 储小兵[1] 何志勇[1] 姚武[2] 

机构地区：[1]第二军医大学附属长征医院骨科,上海200003 [2]同济大学材料力学国家重点实验室,上海200086

出　　处：《武警医学》2004年第10期743-746,共4页Medical Journal of the Chinese People's Armed Police Force

摘　　要：目的　描记膝关节运动过程中胫股、髌股关节在股骨髁关节面接触的重叠区域 ,明确其具体范围 ,为进一步研究膝关节髌骨、胫骨和股骨三者对应解剖关系以及生物力学特性 ,为优化股骨假体设计奠定基础。方法　Instron 85 0 1生物力学测试仪模拟生理状态下膝关节站立到下蹲屈膝过程 ,收集 8具新鲜膝关节尸体标本 ,通过染色法分别描记髌股、胫股关节运动在股骨髁面的接触区域 ,标记其重叠范围。结果　髌股、胫股关节在股骨髁关节面运动存在重叠接触区域 ,范围大致相当股骨髁面全髌股关节接触区域的开始于屈膝 75°髌股接触区域的后部分。结论　膝关节股骨假体的设计应该考虑股骨髁与髌股关节、胫股关节运动的重叠接触区域解剖特点。Objective To determine and trace out the common contact are a on the femoral condyle facet on which the patellofemoral and tibiofemoral joints move in order to elucidate the anatomic relationship and biomechanics of the femur,patella and tibia and optimize, the design of femoral prosthesis. Methods Eight fresh cadaver knees were mounted on Instron 8501 so that force of weight-bearing from standing to high flexion in vivo was s imula ted.The common contact area on the femoral condyle on which the patellofemoral a nd tibiofemoral joints move was traced out by the dye method. Result The said common contact area on the femoral condyle facet is the contact area of whole patellofemoral joint beginning with the posterior part of contact area of patellofemoral joint at 75° flexion of knee.Conclusio n The anatomy of the common contact area on femoral condyle on which th e patellofemoral and tibiofemoral joints move should be considered in the design of femoral prosthsis.

关 键 词：股骨髁 膝关节 髌股关节 运动 股骨假体 关节面 髌骨 区域 结论 范围 

分 类 号：R683.42[医药卫生—骨科学] R684[医药卫生—外科学]