Roy A. Greengrass

4.2k total citations
88 papers, 2.9k citations indexed

About

Roy A. Greengrass is a scholar working on Surgery, Anesthesiology and Pain Medicine and Pathology and Forensic Medicine. According to data from OpenAlex, Roy A. Greengrass has authored 88 papers receiving a total of 2.9k indexed citations (citations by other indexed papers that have themselves been cited), including 77 papers in Surgery, 23 papers in Anesthesiology and Pain Medicine and 20 papers in Pathology and Forensic Medicine. Recurrent topics in Roy A. Greengrass's work include Anesthesia and Pain Management (70 papers), Nausea and vomiting management (43 papers) and Spine and Intervertebral Disc Pathology (18 papers). Roy A. Greengrass is often cited by papers focused on Anesthesia and Pain Management (70 papers), Nausea and vomiting management (43 papers) and Spine and Intervertebral Disc Pathology (18 papers). Roy A. Greengrass collaborates with scholars based in United States, Canada and India. Roy A. Greengrass's co-authors include Stephen M. Klein, Susan M. Steele, Karen C. Nielsen, David S. Warner, Ricardo Pietrobon, David H. Gleason, Steven R. Clendenen, Gregory S. Georgiade, Kevin P. Speer and Stuart Grant and has published in prestigious journals such as Annals of Surgery, Clinical Orthopaedics and Related Research and Anesthesiology.

In The Last Decade

Roy A. Greengrass

86 papers receiving 2.7k citations

Author Peers

Peers are selected by citation overlap in the author's most active subfields. citations · hero ref

Author Last Decade Papers Cites
Roy A. Greengrass 2.6k 867 733 529 185 88 2.9k
F. Kayser Enneking 2.6k 1.0× 609 0.7× 813 1.1× 796 1.5× 273 1.5× 50 3.0k
F. d′Athis 1.9k 0.7× 592 0.7× 651 0.9× 527 1.0× 115 0.6× 64 2.3k
De Q.H. Tran 2.6k 1.0× 618 0.7× 735 1.0× 492 0.9× 115 0.6× 97 2.8k
Philippe Biboulet 1.9k 0.7× 547 0.6× 652 0.9× 504 1.0× 88 0.5× 38 2.1k
G. Lyons 1.7k 0.7× 914 1.1× 362 0.5× 766 1.4× 321 1.7× 88 2.6k
Jeffrey M. Richman 1.8k 0.7× 666 0.8× 353 0.5× 562 1.1× 179 1.0× 18 2.2k
John G. McDonnell 2.6k 1.0× 1.2k 1.4× 575 0.8× 529 1.0× 268 1.4× 28 2.8k
Yavuz Gürkan 1.4k 0.5× 663 0.8× 384 0.5× 273 0.5× 194 1.0× 97 1.7k
Christian Sitzwohl 1.3k 0.5× 358 0.4× 284 0.4× 287 0.5× 280 1.5× 35 1.7k
M. Vercauteren 1.2k 0.5× 436 0.5× 276 0.4× 342 0.6× 127 0.7× 94 1.6k

Countries citing papers authored by Roy A. Greengrass

Since Specialization
Citations

This map shows the geographic impact of Roy A. Greengrass'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 Roy A. Greengrass with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Roy A. Greengrass more than expected).

Fields of papers citing papers by Roy A. Greengrass

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Roy A. Greengrass. 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 Roy A. Greengrass. The network helps show where Roy A. Greengrass may publish in the future.

Co-authorship network of co-authors of Roy A. Greengrass

This figure shows the co-authorship network connecting the top 25 collaborators of Roy A. Greengrass. A scholar is included among the top collaborators of Roy A. Greengrass 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 Roy A. Greengrass. Roy A. Greengrass 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.
Greengrass, Roy A., et al.. (2024). Safety and Complications of Landmark-based Paravertebral Blocks. Clinical Journal of Pain. 40(6). 367–372. 1 indexed citations
2.
George, John E., Kapil Gupta, Sylvia H. Wilson, et al.. (2022). The Use of Pectoralis Blocks in Breast Surgery: A Practice Advisory and Narrative Review from the Society for Ambulatory Anesthesia (SAMBA). Annals of Surgical Oncology. 29(8). 4777–4786. 13 indexed citations
3.
Bowers, Steven P., et al.. (2018). Paravertebral blocks reduce the risk of postoperative urinary retention in inguinal hernia repair. Hernia. 22(5). 871–879. 6 indexed citations
4.
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7.
Greengrass, Roy A., et al.. (2015). THE USE OF PARAVERTEBRAL BLOCKADE FOR ANALGESIA AFTER ANTERIOR-APPROACH TOTAL HIP ARTHROPLASTY.. PubMed. 23(1). 81–9. 3 indexed citations
8.
Clendenen, Steven R., Roy A. Greengrass, Joseph L. Whalen, & Mary I. O’Connor. (2014). Infrapatellar Saphenous Neuralgia After TKA Can Be Improved With Ultrasound-guided Local Treatments. Clinical Orthopaedics and Related Research. 473(1). 119–125. 45 indexed citations
9.
Clendenen, Steven R., et al.. (2009). Real-time three-dimensional ultrasound for continuous interscalene brachial plexus blockade. Journal of Anesthesia. 23(3). 466–468. 9 indexed citations
10.
Harrison, Barry, et al.. (2006). A Pilot Study on Continuous Femoral Perineural Catheter for Analgesia After Total Knee Arthroplasty. The Journal of Arthroplasty. 21(8). 1111–1117. 46 indexed citations
11.
Greengrass, Roy A. & Karen C. Nielsen. (2005). Management of Peripheral Nerve Block Catheters at Home. International Anesthesiology Clinics. 43(3). 79–87. 4 indexed citations
12.
Nielsen, Karen C., Ulrich Güller, Susan M. Steele, et al.. (2004). Influence of Obesity on Surgical Regional Anesthesia in the Ambulatory Setting: An Analysis of 9,038 Blocks. Anesthesiology. 102(1). 181–187. 118 indexed citations
13.
Klein, Stephen M., Susan M. Steele, Karen C. Nielsen, et al.. (2003). The difficulties of ambulatory interscalene and intra-articular infusions for rotator cuff surgery: a preliminary report. Canadian Journal of Anesthesia/Journal canadien d anesthésie. 50(3). 265–269. 26 indexed citations
14.
Bell, Elizabeth A., Adeyemi J. Olufolabi, Franklin Dexter, et al.. (2002). Iliohypogastric-ilioinguinal peripheral nerve block for post-Cesarean delivery analgesia decreases morphine use but not opioid-related side effects. Canadian Journal of Anesthesia/Journal canadien d anesthésie. 49(7). 694–700. 74 indexed citations
15.
Klein, Susan, Ricardo Pietrobon, Karen C. Nielsen, et al.. (2002). Paravertebral somatic nerve block compared with peripheral nerve blocks for outpatient inguinal herniorrhaphy. Regional Anesthesia & Pain Medicine. 27(5). 476–480. 52 indexed citations
16.
Buckenmaier, Chester C., Karen C. Nielsen, Ricardo Pietrobon, et al.. (2002). Small-Dose Intrathecal Lidocaine Versus Ropivacaine for Anorectal Surgery in an Ambulatory Setting. Anesthesia & Analgesia. 95(5). 1253–1257. 43 indexed citations
17.
Greengrass, Roy A., et al.. (2001). Patient satisfaction and effectiveness of lumbar plexus and sciatic nerve block for total knee arthroplasty. The Journal of Arthroplasty. 16(1). 17–21. 28 indexed citations
18.
Coveney, Eamonn, Christina Weltz, Roy A. Greengrass, et al.. (1998). Use of Paravertebral Block Anesthesia in the Surgical Management of Breast Cancer. Annals of Surgery. 227(4). 496–501. 209 indexed citations
19.
Greengrass, Roy A., H. Kim Lyerly, David Hardman, et al.. (1996). Paravertebral block for breast cancer surgery. Canadian Journal of Anesthesia/Journal canadien d anesthésie. 43(8). 858–861. 115 indexed citations
20.
Sawchuk, Corey, B. Y. Ong, Helmut Unruh, Thomas A. Horan, & Roy A. Greengrass. (1993). Thoracic versus lumbar epidural fentanyl for postthoracotomy pain. The Annals of Thoracic Surgery. 55(6). 1472–1476. 20 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.

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