Book excerpt: In this issue of Orthopedic Clinics, a team of eleven guest editors from the Campbell Clinic bring their considerable expertise to the topic of Managing Comorbidities. Top experts in the field cover key topics such as preventing the impact of hyperglycemia and diabetes on patients undergoing total joint arthroplasty; managing the patient with peripheral artery disease before TKA surgery; how to best utilize pediatric subspecialists; management of gout in the upper extremity; and more. - Contains 12 relevant, practice-oriented topics including an update on the management and optimization of the patient with morbid obesity; managing comorbid conditions in geriatric orthopedic trauma patients; T1DM overview and perioperative management; what the orthopaedic surgeon should know about new trends in the medical management of diabetes; comorbidities in spine surgery: preoperative evaluation, treatment, and outcomes; and more. - Provides in-depth clinical reviews on managing comorbidities, offering actionable insights for clinical practice. - Presents the latest information on this timely, focused topic under the leadership of experienced editors in the field. Authors synthesize and distill the latest research and practice guidelines to create clinically significant, topic-based reviews.