With her sullen I can do it, Arie showed that she'd seen through Erik's attempt to preserve her dignity while he shielded her from undo pain. But fortunately, she wasn't too proud as to allow him to hold her weight while she did what Hannibal described.
Erik didn't say another word while Arie worked through her movements, or as Hannibal tended his patient. His lips thinned when the doctor gave Erik that particular look. Now was not the time to explain that the splint was designed to prevent further damage while Erik moved Arie to a bed -- where she was supposed to have stayed -- and nothing more. But there was no way to tell him that without interrupting the badly needed diagnosis. Erik would not interrupt a maestro at his place before his orchestra, and so he waited in silence, keeping his hands firmly on Arya's waist.