Donald B Longjohn

Donald B Longjohn is Clinical Assistant Professor of Orthopaedic Surgery at USC's Keck School of Medicine, specializing in complex joint reconstruction.

Education:

• Fellowship in Arthritis/Joint Implant Surgery, Rancho Los Amigos/USC
• Residency in Orthopaedic Surgery, USC+LA County
• MD, University of Michigan

His clinical work focuses on hip/knee replacements and revision arthroplasty, with research on implant materials, infection control, and biomechanical optimization.

Publications address periprosthetic fracture risk, spacer techniques for infections, and outcomes of salvage procedures, featuring clinical and biomechanical studies.

Awards:

• Consistent recognition as Top Orthopaedic Surgeon in LA (2016-2022)

He mentors surgical residents and leads studies on blood management and rehabilitation protocols. Current projects investigate novel materials for bone defect reconstruction.