Muellner T, Funovics M, Nikolic A, Metz V, Schabus R, Vécsei V
University Clinic of Traumatology, University of Vienna Medical School, Austria.
Acta Orthop Scand. 1998 Oct;69(5):489-92. doi: 10.3109/17453679808997784.
We analyzed the congruence of the articular cartilage surfaces and the corresponding subchondral bone in the patellar joint. 20 volunteers underwent MRI investigations of the right patellar joint in 20 degree and 45 degree flexion in the axial plane. The sulcus, congruence, and lateral patellofemoral angles, measured on MRI slices centered through the midtransverse patella, were recorded. In 20 degree and 45 degree knee flexion, the bony sulcus and lateral patellofemoral angles were significantly different from the respective cartilagineous angle. We conclude that 1) measurement of the bony sulcus and lateral patellofemoral angles does not allow conclusions about the articular cartilage surface and its thickness, 2) the bony congruence angle corresponds well to the articular cartilage surface as an indicator of patellar centralization.
我们分析了髌骨关节中关节软骨表面与相应软骨下骨的一致性。20名志愿者在轴向平面上对右髌骨关节进行了20度和45度屈曲的MRI检查。记录在以髌骨中部横向为中心的MRI切片上测量的沟、一致性和外侧髌股角。在膝关节20度和45度屈曲时，骨沟和外侧髌股角与各自的软骨角有显著差异。我们得出结论：1）测量骨沟和外侧髌股角无法得出关于关节软骨表面及其厚度的结论；2）骨一致性角与关节软骨表面很好地对应，可作为髌骨中心化的指标。
