Ehler E, Bockstedt S, Müller O
Anat Anz. 1978;143(1):130-5.
A total of five human knee joints fixed in formalin were available from the 1975/76 dissection course at the Anatomical Institute in Rostock. The different joints where loaded while bent at rightangles (Fig. 1). The maximum load varied between 280 and 400 kp. The length reductions at the compression fracture load were between 5.3 and 10.5 mm. The curves shown beyond the fracture region in Fig. 2 result from the reconsolidation of the fractured bone as an additional elastic region. Bone is generally regarded as a completely elastic material. The load range prior to fracture can probably be considered as elastic in the sense defined by Hooke's law; the curves are correspondingly approximately linear. This also applies to our knee joints, which require a system approach.
罗斯托克解剖研究所1975/76年解剖课程中共有五个用福尔马林固定的人体膝关节。在膝关节弯曲成直角时对不同关节施加负荷（图1）。最大负荷在280至400千帕之间变化。压缩骨折负荷下的长度缩短在5.3至10.5毫米之间。图2中骨折区域之外显示的曲线是由于骨折骨重新固结形成了一个额外的弹性区域。一般认为骨骼是一种完全弹性的材料。骨折前的负荷范围在胡克定律所定义的意义上可能可被视为弹性的；曲线相应地大致呈线性。这也适用于我们的膝关节，对此需要采用系统方法。
