英语语法分析

How should take care of the patient with necrotic head of a femur?

应该怎样去照顾一个股骨头坏死的病人呢？

Surgery to remove necrotic tissue, cover skin defects and correct deformities.

外科手术切除坏死组织、修复皮肤缺损和矫正畸形。

The reason that you don't feel anything is because the pulp is dead (necrotic).

你没有什么感觉的原因就是因为牙髓已经坏死。