Report summary

University of California, San Francisco Department of Orthopaedic Surgery in 2015-2026 reads as a 98-PI network with 382 internal PI collaborations. The research center of gravity is Medicine as the leading field (65% of slots across 88 PIs; 88 labels), Surgery as the leading subfield (27% of slots across 62 PIs; 62 labels), and Shoulder Injury and Treatment as the leading topic (5% of slots across 15 PIs; 15 labels). That is promising: collaboration is not just one large hairball, and the leading breakdown groups cover 26 PIs across distinct clusters. The most prominent PIs by weighted works are Alan L. Zhang (60.3 weighted works; Shoulder Injury and Treatment, Hip disorders and treatments); Drew A. Lansdown (56.4 weighted works; Knee injuries and reconstruction techniques, Osteoarthritis Treatment and Mechanisms). The strongest pairings are Drew A. Lansdown and Brian T. Feeley (102 shared works, weight 38.1); Drew A. Lansdown and C. Benjamin (80 shared works, weight 37.3). The strongest breakdown groups are group 1 with 10 PIs, 16 internal connections, weight 271.4, around Surgery, Orthopedics and Sports Medicine, Rheumatology, led by Alan L. Zhang, Drew A. Lansdown, Brian T. Feeley; group 2 with 9 PIs, 11 internal connections, weight 88.3, around Epidemiology, Surgery, Public Health, Environmental and Occupational Health, led by Theodore Miclau, Saam Morshed, Ralph Marcucio.