Report summary

For Harvard University Department of Orthopaedic Surgery in 2015-2026, the graph shows 117 visible PIs and 566 internal PI collaborations. The main research signal is Medicine as the leading field (68% of slots across 111 PIs; 111 labels), Surgery as the leading subfield (28% of slots across 76 PIs; 76 labels), and Total Knee Arthroplasty Outcomes as the leading topic (5% of slots across 19 PIs; 19 labels). That is a healthy pattern, with enough links to reveal several interpretable groups rather than one undifferentiated component. The most prominent PIs by weighted works are Andrew J. Schoenfeld (100.7 weighted works; Spine and Intervertebral Disc Pathology, Pelvic and Acetabular Injuries). The clearest collaboration lines are Jeffrey N. Katz and Elena Losina (103 shared works, weight 49.9). The strongest breakdown groups are group 1 with 10 PIs, 11 internal connections, weight 91.9, around Surgery, Orthopedics and Sports Medicine, Pathology and Forensic Medicine, led by Mininder S. Kocher, Andrea Stracciolini, Benton E. Heyworth.