Full thickness Distal Bicep rupture question.

Hey gang! New to the board and had a question regarding a full distal bicep rupture. I have a 1cm full thickness tear; however, I have no rom issues and no supination issues. The ortho gave me the option of going a nonsurgical route or getting an endobutton if I choose surgery. My underlying question is: if I get the surgery will I lose the full ROM and supination that I currently have? Thanks for the help!

Best

CB