Elaine Hendrix was carried out of the ballroom on a stretcher before Tuesday's "Dancing with the Stars" taping ... but she put on a brave face from her hospital bed in a video shared to Instagram.

Watch the clip ... she gives us the lowdown on her hospitalization situation ... in the caption , the 'Parent Trap' actress admitted she's "devastated" to have missed the live performance, writing, "I was beyond excited to share what we had worked so hard on, although you’ll see a version of it. With your support, I’ll be back in the ballroom next week. I want nothing more." Disney/Andrew Eccles

People reports, the injury happened during rehearsals when Elaine said she couldn't breathe because of something wrong with her rib.

According to cohosts Alfonso Ribeiro and Julianne Ho

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