Most caries were minor in degree of severity, and mostly lie in the occlusal and proximalsurface.
龋齿主要为浅龋，咬合面和邻面龋占绝大多数。
2
More than one elongated decompression planes on the surface of the intramedullary nail bar extend from the proximal end to the distal end of the intramedullary nail bar.
在髓内钉杆表面设有一条以上呈长条形的减压平面，减压平面可从髓内钉杆近端直至髓内钉杆远端。
3
Unicortical screws are indicated for periarticular fractures in which the screws are placed in the direction of an articular surface, such as in the proximal part of the humerus.