Artificial joints; Cotyloid implants made of artificial materials; Hip joint implants made of artificial materials, and parts therefor; Implants consisting of artificial materials; Joint prostheses; Medical, surgical and orthopaedic implants made of artificial materials; Medical apparatus and instruments for treating osteoarthritis, osteoporosis, osteotraumatic injuries, degenerative bone diseases and joint diseases; Medical apparatus and instruments for treating osteotraumatic injuries, degenerative bone diseases and joint diseases; Medical apparatus and instruments for use in orthopedic surgery; Surgical and medical apparatus and instruments for use in hip and knee replacement surgery; Orthopedic joint implants made of artificial materials; Surgical and medical apparatus and instruments for use in orthopedic surgery; Surface coatings for use as a porous layer on and sold as an integral component of artificial joint implants; Surface coatings sold as an integral component of orthopedic implants made of artificial materials