первая в мире

[upahill]

В Сибири выполнена первая в мире операция на позвоночнике, во время которой хирурги видели состояние спинного мозга."

Подскажите, как предложение построить пожайлуста

It is the first time that surgeons could observe(examine, see?) the condition of a(the) spinal column. Ant the operation was executed in Siberia.

как нить так?

[%&$]

consider:
In Siberia surgeons performing an unprecedented backbone surgery were able to observe the vital state of a vertebrae.

[upahill]

Большое Спасибо!!!!!!!!!!!

[PERPETRATOR™]

A spinal surgery was performed in Siberia, during which the surgeons were able for the first time [in history] to observe/monitor/see the state of the spinal cord.