@mohanakris79292 since iFixit does not yet have a guide for that, I suggest that you download the Lenovo Hardware Maintenance Manual [https://download.lenovo.com/consumer/mobiles_pub/yoga920-13ikb_yoga920-13ikbglass_hmm_201709.pdf|from here] Check under the LCD unit repair and other sections, on the hinge repair/removal. This manual alsop has the part numbers etc. as well. [br]
While you work on your laptop, take lots of pictures. Once you are done with it, take those pictures and create a guide for iFixit. That will help the next person that has the same problem as you do. It's easy and fun to create these guides. https://ifixit.com/Guide/new The iFixit community will appreciate this.