This thesis explores multidisciplinary teamwork in orthopaedic trauma surgery through two studies of hip fracture repair following an ethnographic approach. The first study maps the surgical workflow across surgeons, anesthesiologists, nurses, and radiation technologists (RTs), identifying discipline-specific responsibilities, interactions, and critical moments. The resulting surgical process map and thematic analysis reveal how misaligned critical points and communication breakdowns can disrupt team coordination and patient care. The second study builds on these findings by examining team culture using the framework of work-as-imagined versus work-as-done. Interview data revealed expectations versus reality in operating room (OR) collaboration, with particular attention to teaching practices, communication, and the RT role. The findings expose cultural tensions and hierarchies that impact team functioning, and opportunities for improving team familiarity, inclusion, and shared understanding. Together, these studies offer a human factors perspective on OR dynamics and provide a foundation for targeted interventions to strengthen surgical teamwork and safety.