Step forward into the space where the barrel was and look at the stone plate held down by 4 screws.
一步迈进的空间，让每桶举行，并期待在4个螺丝下来的石板材。
2
Locking head screws will not have optimal fixation if the plate is not sitting over the middle of the bone surface.
如果钢板没有放在骨界面的中央，锁定头螺钉将不能达到最佳的固定。
3
Objectives: To investigate whether locking screws offer any advantage over nonlocking screws for plate fixation of humeral shaft fractures for weight-bearing applications.