Dr. Johannes Dominik Bastian is a Swiss orthopaedic surgeon and professor at Inselspital, University Hospital Bern. Trained in Bern, he specializes in hip and pelvic surgery, including primary and revision hip arthroplasty, femoral and acetabular fractures, periprosthetic fractures, and pelvic-ring injuries. At Inselspital, he established the orthogeriatric service and the Fracture Liaison Service (FLS) to improve acute care pathways and long-term outcomes for older adults with fragility fractures. He founded and serves as president of the Expert Group “Orthogeriatry and Geriatric Traumatology” within Swiss Orthopaedics, created the Orthogeriatric Research Center Bern—an interdisciplinary platform hosting the annual Swiss Orthogeriatric Day—and initiated the Fragility Fracture Network (FFN) Switzerland. These contributions have established him as a leading figure in orthogeriatric trauma care in Switzerland and internationally. His research focuses on hip and pelvic trauma, orthogeriatric care models, and clinical pathways for fragility fractures in ageing populations, with the aim of improving functional recovery, reducing complications, and advancing evidence-based care for older trauma patients.