Smashed in power button after drop

I dropped my phone several times on concrete, and having iPhones for several years, I've gotten used to it and I've never had a broken screen whenever I did drop it. But a couple days ago, I dropped my phone on concrete, picked it back up and didn't mind until later when I noticed it was rather hard to shut off my phone by pressing the button, then after the second press, it wouldn't respond because the button was stuck in. Now I'm wondering what I should do to fix it. Should I replace the key? Or should I do something deeper than that, any response would deeply help because I'm just wondering how I can fix this problem in my phone, I've had lots of experience with fixing up phones, but only the older generations.