AsNoriuanswered grow question 6 months ago Even if 1/10 os still conected it should heal back.
I use paper masking pating mask / tape, one lair with tail for glueing rest. When plant heals, he creates nuckle , aka extra pump in that spot, expands, so leaving squeezed tight tape can rip into healing plant.
If that spot is still alive after 48 hours, she will live.
After 10-14 days take off bandage.