Hetherington V J, Cwikla P S, Malone M, Herbert C, Reed S
Biomaterials Laboratory, Ohio College of Podiatric Medicine, Cleveland.
J Foot Ankle Surg. 1994 Jan-Feb;33(1):77-82.
This study was designed to examine the sectional morphology of the first metatarsophalangeal joint. Sections were cut in the transverse or sagittal planes from the distal aspect of the first metatarsal and the proximal aspects of the proximal phalanx. These sections were then x-rayed and measurements of the radiographs were taken, in order to attempt to quantify variation in articular surfaces among the various sections. In addition, descriptive statistics of the height and width of the cross section at the mid-diaphysis of the first metatarsal and associated proximal phalanx are presented. Trabecular patterns of the head of the first metatarsal and the base of the proximal phalanx are described based on sectional radiographs. Differences in trabecular patterns between diseased and nondiseased bones are also described. These data are presented as an aid in the accurate sizing of future prosthetic first metatarsophalangeal joint designs.
本研究旨在检查第一跖趾关节的断面形态。从第一跖骨远端和近节趾骨近端切取横断面或矢状面切片。然后对这些切片进行X线摄影，并对X线片进行测量，以试图量化各切片间关节面的变异情况。此外，还给出了第一跖骨和相关近节趾骨骨干中部横断面的高度和宽度的描述性统计数据。基于断面X线片描述了第一跖骨头和近节趾骨基底的小梁模式。还描述了患病骨骼和未患病骨骼之间小梁模式的差异。这些数据有助于准确确定未来第一跖趾关节假体设计的尺寸。
