So how can a routine operation go so terribly wrong?

为何常规的手术竟会发生如此严重的问题？

He scarcely read the telegraphic dispatches that reported routine operations.

他几乎不阅读报告日常操作的电报。

And apparently that day has come, because seemingly routine operations such as knee replacements are now much more hazardous due to the looming threat of these infections.

很显然，那一天已经到来了，因为现在很多很常见的手术，像是膝关节的替换手术，因为怕出现感染，都有着很高的风险。