Katherine Heigl undergoes surgery to implant two titanium discs in her neck

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The Firefly Lane star recently underwent the surgery after herniating a disc in her neck. "Well…I am now bionic!!" she wrote on Instagram. "Two titanium discs now inhabit my neck and I can probably stand on my head for like hours...I'm not gonna try it just yet but give me a few months and I'll blow your mind!!"