Robert O’Brien

1.1k total citations
43 papers, 621 citations indexed

About

Robert O’Brien is a scholar working on Surgery, Orthopedics and Sports Medicine and Oncology. According to data from OpenAlex, Robert O’Brien has authored 43 papers receiving a total of 621 indexed citations (citations by other indexed papers that have themselves been cited), including 23 papers in Surgery, 8 papers in Orthopedics and Sports Medicine and 5 papers in Oncology. Recurrent topics in Robert O’Brien's work include Knee injuries and reconstruction techniques (19 papers), Total Knee Arthroplasty Outcomes (11 papers) and Shoulder Injury and Treatment (9 papers). Robert O’Brien is often cited by papers focused on Knee injuries and reconstruction techniques (19 papers), Total Knee Arthroplasty Outcomes (11 papers) and Shoulder Injury and Treatment (9 papers). Robert O’Brien collaborates with scholars based in United States, Austria and Netherlands. Robert O’Brien's co-authors include Burtron H. Davis, Mingsheng Luo, Yongqing Zhang, Gregory S. DiFelice, John F. Richardson, Robert M. Buchanan, Harmen D. Vermeijden, Jelle P. van der List, Wayne R. Thomas and Andrew Wootton and has published in prestigious journals such as Journal of Clinical Oncology, SHILAP Revista de lepidopterología and PLoS ONE.

In The Last Decade

Robert O’Brien

37 papers receiving 593 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Robert O’Brien United States 12 197 150 132 107 104 43 621
Matthias Jung Germany 14 95 0.5× 55 0.4× 85 0.6× 324 3.0× 15 0.1× 40 857
Yuqing Jia China 11 77 0.4× 89 0.6× 43 0.3× 202 1.9× 25 0.2× 36 601
Stuart E. Smith United States 18 46 0.2× 140 0.9× 287 2.2× 72 0.7× 29 0.3× 33 975
Qi Song China 17 102 0.5× 337 2.2× 41 0.3× 65 0.6× 17 0.2× 73 1.0k
Seong Yeol Kim South Korea 13 19 0.1× 87 0.6× 71 0.5× 172 1.6× 30 0.3× 43 491
H. Beyer Germany 10 43 0.2× 86 0.6× 115 0.9× 46 0.4× 16 0.2× 32 400
Jin Soo Lim South Korea 12 101 0.5× 389 2.6× 137 1.0× 145 1.4× 19 0.2× 31 797
Ruya Zhang China 13 57 0.3× 259 1.7× 29 0.2× 38 0.4× 16 0.2× 33 816
T Nakayama Japan 13 124 0.6× 188 1.3× 202 1.5× 91 0.9× 20 0.2× 28 705

Countries citing papers authored by Robert O’Brien

Since Specialization
Citations

This map shows the geographic impact of Robert O’Brien's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Robert O’Brien with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Robert O’Brien more than expected).

Fields of papers citing papers by Robert O’Brien

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Robert O’Brien. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Robert O’Brien. The network helps show where Robert O’Brien may publish in the future.

Co-authorship network of co-authors of Robert O’Brien

This figure shows the co-authorship network connecting the top 25 collaborators of Robert O’Brien. A scholar is included among the top collaborators of Robert O’Brien based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Robert O’Brien. Robert O’Brien is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
List, Jelle P. van der, et al.. (2025). Sustained Clinical and Functional Outcomes After Primary Anterior Cruciate Ligament Repair: A Minimum 5-Year Follow-up Study. The American Journal of Sports Medicine. 53(8). 1901–1911. 1 indexed citations
2.
O’Brien, Robert, et al.. (2025). Primary Arthroscopic Repair of Chronic Anterior Cruciate Ligament Tears. Arthroscopy Techniques. 14(12). 103953–103953.
3.
Stowe, Timothy R., Cheryl L. Sisk, Javier Courtis, et al.. (2025). Efficacy of cartilage-targeted IGF-1 in a mouse model of growth hormone insensitivity. Frontiers in Endocrinology. 15. 1523931–1523931. 1 indexed citations
4.
O’Brien, Robert, et al.. (2025). Tear Location of Superficial Medial Collateral Ligament Tears: Validation of a Magnetic Resonance Imaging–Based Classification System. The American Journal of Sports Medicine. 53(6). 1400–1408.
5.
O’Brien, Robert, et al.. (2024). Location of medial collateral ligament tears: introduction to a magnetic resonance imaging-based classification. Skeletal Radiology. 54(4). 851–860. 1 indexed citations
6.
7.
DiFelice, Gregory S., et al.. (2024). Paper 26: Role of Age on Survival of Anterior Cruciate Ligament Primary Repair at minimum 5-year follow-up. Orthopaedic Journal of Sports Medicine. 12(7_suppl2).
8.
9.
O’Brien, Robert, et al.. (2022). Perceptions and barriers of telehealth services among trauma and acute care surgery patients. SHILAP Revista de lepidopterología. 11. 100138–100138. 1 indexed citations
10.
Vermeijden, Harmen D., Jelle P. van der List, Robert O’Brien, & Gregory S. DiFelice. (2021). Primary Repair of Anterior Cruciate Ligament Injuries. JBJS Reviews. 9(5). 5 indexed citations
11.
Vermeijden, Harmen D., Jelle P. van der List, Robert O’Brien, & Gregory S. DiFelice. (2020). Return to sports following arthroscopic primary repair of the anterior cruciate ligament in the adult population. The Knee. 27(3). 906–914. 16 indexed citations
12.
King, Jeffrey C., et al.. (2019). Quantitative Crack Analysis using Indirect Neutron Radiography and Neutron Activation Analysis with Contrast Enhancement Agents. Materials research proceedings. 15. 164–172. 1 indexed citations
13.
14.
Bellmunt, Joaquim, Shamini Selvarajah, Scott J. Rodig, et al.. (2011). Identification of ALK gene alterations in urothelial carcinoma (UC).. Journal of Clinical Oncology. 29(15_suppl). 4568–4568. 1 indexed citations
15.
Werner, Lillian, Shamini Selvarajah, Barbara A. Weir, et al.. (2011). Identification of a novel urothelial carcinoma (UC) biomarker of lethality.. Journal of Clinical Oncology. 29(15_suppl). 4569–4569. 2 indexed citations
16.
Watson, Eila, Robert O’Brien, David Weller, et al.. (2011). Views of health professionals on the role of primary care in the follow-up of men with prostate cancer. Family Practice. 28(6). 647–654. 30 indexed citations
17.
Dolan, Diana C., J. C. Troncoso, Susan M. Resnick, et al.. (2010). Age, Alzheimer's disease and dementia in the Baltimore Longitudinal Study of Ageing. Brain. 133(8). 2225–2231. 53 indexed citations
18.
Mashuta, Mark S., et al.. (2004). Synthesis, characterization and crystal structures of Nickel(II) complexes containing sterically hindering Benzimidazole ligands. Journal of Coordination Chemistry. 57(5). 361–372. 2 indexed citations
19.
O’Brien, Robert, Wayne R. Thomas, & Andrew Wootton. (1992). T cell responses to the purified major allergens from the house dust mite Dermatephagoides pteronyssinus. Journal of Allergy and Clinical Immunology. 89(5). 1021–1031. 56 indexed citations
20.
Oberhausen, Kenneth J., Robert O’Brien, John F. Richardson, & Robert M. Buchanan. (1990). New tripodal Cu(II) complexes containing imidazole ligands. Inorganica Chimica Acta. 173(2). 145–154. 61 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

Explore authors with similar magnitude of impact

Breakdown of academic impact, for papers by Matthias Jung Breakdown of academic impact, for papers by Yuqing Jia Breakdown of academic impact, for papers by Stuart E. Smith Breakdown of academic impact, for papers by Qi Song Breakdown of academic impact, for papers by Seong Yeol Kim Breakdown of academic impact, for papers by H. Beyer Breakdown of academic impact, for papers by Jin Soo Lim Breakdown of academic impact, for papers by Ruya Zhang Breakdown of academic impact, for papers by T Nakayama
Rankless by CCL
2026