| 摘要 |
A bone plate, (100) comprises a first surface (102) and a second surface (104) in combination with a first hole (106) extending through the bone plate from the first surface to the second surface, the hole including a compression portion (112) and a variable angle portion (114) open to one another by a connecting space (134), the compression portion including a sloping surface adapted to engage a head of a bone fixation element inserted thereinto so that the bone fixation element imparts a force to the bone plate to move the bone plate laterally relative to a portion of bone into which the bone fixation element is inserted, the variable angle portion including a plurality of columns (120) positioned about a circumference of a wall of the variable angle portion, the columns being separated from one another by a plurality of gaps (122) positioned between adjacent pairs of columns and including a plurality of protrusions (132) extending radially inward therefrom. |
