Welcome to Arthroplasty Focus! This series is designed to promote special issues published on the ASIA's official journal, Arthroplasty, to accelerate knowledge speraning and exchanging. In this series, you may have the interviews to the guest editors, and may also have the video abstracts for the published papers in those special issues. With the development of AI, some pliots may also be applied into this series. We may simply summarised the content and generated this Arthroplasty Focus with AI-powered Avatar technique. Welcome to watch and share!