If you can get your hands on a bionic arm, then all you need is a new colonist.
New Colonist Season doesn't begin until summer though. I tried to rush over to a crash-lander with a stack of wood to build a survival shack and campfire, but by the time I arrived, all I could do for him was strip the clothes off his body before they got dead-people stank all over them. But what can you do at -110C? I'm sure at a balmy -60C I could have saved him.
You know life is harsh when Dry Ice (-80C) seems warm.
I forgot to save up Steel for a turret of my own though, so I'm a bit worried now. How long can I continue to get lucky? So far I have been able to take down 6 Scythers with no injuries to Cross, but I my first partner colonist, Feeb, took a shot to the head and was saved only by her Synthread tuque (4/30 HP). She later died when a ZZzt set her on fire and I didn't have time to treat her wounds before another mechanoid raid arrived.
That raid destroyed both my batteries and a windmill, leaving me powerless. Feeb was summoned from her bed to engage the Scythers as she could while Cross was pinned behind a pillar under heavy fire. She distracted a Scyther before it could destroy my Nutrient Paste Dispenser and open a hole into my base. She lost an arm and a leg in that fight, and I was going to euthanize her, but the loss of power did that for me. I only had set of clothing that could withstand the cold, and Cross was wearing it so she died on the floor of the frozen greenhouse.
Eh, she wasn't that great anyways. Depressive Neurotics, amirite?