R. Ruppert

1.5k total citations
42 papers, 926 citations indexed

About

R. Ruppert is a scholar working on Surgery, Oncology and Pulmonary and Respiratory Medicine. According to data from OpenAlex, R. Ruppert has authored 42 papers receiving a total of 926 indexed citations (citations by other indexed papers that have themselves been cited), including 30 papers in Surgery, 20 papers in Oncology and 10 papers in Pulmonary and Respiratory Medicine. Recurrent topics in R. Ruppert's work include Colorectal Cancer Surgical Treatments (18 papers), Colorectal and Anal Carcinomas (14 papers) and Anorectal Disease Treatments and Outcomes (11 papers). R. Ruppert is often cited by papers focused on Colorectal Cancer Surgical Treatments (18 papers), Colorectal and Anal Carcinomas (14 papers) and Anorectal Disease Treatments and Outcomes (11 papers). R. Ruppert collaborates with scholars based in Germany, Switzerland and United States. R. Ruppert's co-authors include Alois Fürst, Susanne Merkel, Joachim Straßburg, P. Hermanek, T Junginger, Jutta Engel, Christoph A. Maurer, Natascha C. Nüssler, Emmanuel Tiret and Karl‐Walter Jauch and has published in prestigious journals such as Journal of Clinical Oncology, Annals of Surgery and International Journal of Cancer.

In The Last Decade

R. Ruppert

40 papers receiving 878 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
R. Ruppert Germany 17 688 671 203 122 68 42 926
Craig Messick United States 15 620 0.9× 639 1.0× 158 0.8× 83 0.7× 140 2.1× 64 908
Sigmar Stelzner Germany 19 1.1k 1.7× 1.2k 1.8× 225 1.1× 220 1.8× 43 0.6× 65 1.5k
Marcello Di Martino Spain 15 449 0.7× 301 0.4× 229 1.1× 47 0.4× 27 0.4× 78 783
Douglas W. Wong United States 14 1.3k 2.0× 1.2k 1.7× 260 1.3× 391 3.2× 106 1.6× 14 1.6k
Najim Chafaı̈ France 19 732 1.1× 524 0.8× 162 0.8× 120 1.0× 58 0.9× 63 924
John Kilkenny United States 10 596 0.9× 415 0.6× 132 0.7× 193 1.6× 51 0.8× 16 757
Scott H. Herbert United States 13 286 0.4× 299 0.4× 407 2.0× 132 1.1× 45 0.7× 16 677
Nidal Dehni France 20 1.4k 2.0× 1.1k 1.7× 273 1.3× 136 1.1× 36 0.5× 47 1.6k
Robert D. Riether United States 18 657 1.0× 411 0.6× 138 0.7× 264 2.2× 121 1.8× 35 866
Alistair Slesser United Kingdom 14 466 0.7× 314 0.5× 116 0.6× 106 0.9× 36 0.5× 30 688

Countries citing papers authored by R. Ruppert

Since Specialization
Citations

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

Fields of papers citing papers by R. Ruppert

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by R. Ruppert. 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 R. Ruppert. The network helps show where R. Ruppert may publish in the future.

Co-authorship network of co-authors of R. Ruppert

This figure shows the co-authorship network connecting the top 25 collaborators of R. Ruppert. A scholar is included among the top collaborators of R. Ruppert 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 R. Ruppert. R. Ruppert 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.
Ruppert, R., et al.. (2025). How Do AI Educators Use Open Educational Resources? A Cross-Sectoral Case Study on OER for AI Education. Open Praxis. 17(1). 46–63. 2 indexed citations
2.
Ruppert, R., T Junginger, Rainer Kube, et al.. (2023). Risk-Adapted Neoadjuvant Chemoradiotherapy in Rectal Cancer: Final Report of the OCUM Study. Journal of Clinical Oncology. 41(24). 4025–4034. 27 indexed citations
3.
Halfter, Kathrin, G. Schubert-Fritschle, Frederick Klauschen, et al.. (2023). The other colon cancer: a population‐based cohort study of appendix tumour trends and prognosis. Colorectal Disease. 25(5). 943–953. 1 indexed citations
4.
Nüssler, Natascha C., Thomas Klier, & R. Ruppert. (2022). Mindestmengen aus der Sicht einer Klinik der Schwerpunktversorgung. Der Chirurg. 93(4). 356–361. 2 indexed citations
5.
Stelzner, Sigmar, R. Ruppert, Rainer Kube, et al.. (2021). Selection of patients with rectal cancer for neoadjuvant therapy using pre-therapeutic MRI – Results from OCUM trial. European Journal of Radiology. 147. 110113–110113. 18 indexed citations
6.
Ruppert, R., Rainer Kube, Joachim Straßburg, et al.. (2020). Avoidance of Overtreatment of Rectal Cancer by Selective Chemoradiotherapy: Results of the Optimized Surgery and MRI-Based Multimodal Therapy Trial. Journal of the American College of Surgeons. 231(4). 413–425e2. 28 indexed citations
7.
Heinemann, Volker, Jutta Engel, G. Schubert-Fritschle, et al.. (2020). Patients with colorectal cancer and brain metastasis: The relevance of extracranial metastatic patterns predicting time intervals to first occurrence of intracranial metastasis and survival. International Journal of Cancer. 148(8). 1919–1927. 17 indexed citations
8.
Kreis, Martin E., R. Ruppert, Rainer Kube, et al.. (2019). MRI-Based Use of Neoadjuvant Chemoradiotherapy in Rectal Carcinoma: Surgical Quality and Histopathological Outcome of the OCUM Trial. Annals of Surgical Oncology. 27(2). 417–427. 15 indexed citations
9.
Sohn, Maximilian, Ayman Agha, P Steiner, et al.. (2018). Damage control surgery in perforated diverticulitis: ongoing peritonitis at second surgery predicts a worse outcome. International Journal of Colorectal Disease. 33(7). 871–878. 15 indexed citations
10.
Ommer, A., Alexander Herold, E. Berg, et al.. (2017). German S3 guidelines: anal abscess and fistula (second revised version). Langenbeck s Archives of Surgery. 402(2). 191–201. 64 indexed citations
11.
Nitsche, Ulrich, Helmut Frieß, Ayman Agha, et al.. (2016). Prognosis of mucinous and signet-ring cell colorectal cancer in a population-based cohort. Journal of Cancer Research and Clinical Oncology. 142(11). 2357–2366. 52 indexed citations
12.
Schön, Michael P., R. Ruppert, H. Ptok, et al.. (2015). Spinktererhalt nach selektiver Radiochemotherapie des Rektumkarzinoms. Der Chirurg. 86(12). 1138–1144. 3 indexed citations
13.
Kreis, Martin E., R. Ruppert, H. Ptok, et al.. (2015). Use of Preoperative Magnetic Resonance Imaging to Select Patients with Rectal Cancer for Neoadjuvant Chemoradiation—Interim Analysis of the German OCUM Trial (NCT01325649). Journal of Gastrointestinal Surgery. 20(1). 25–33. 36 indexed citations
14.
Michl, Marlies, G. Schubert-Fritschle, Rüdiger P. Laubender, et al.. (2015). Brain Metastasis in Colorectal Cancer Patients: Survival and Analysis of Prognostic Factors. Clinical Colorectal Cancer. 14(4). 281–290. 45 indexed citations
15.
Kreis, Martin E., Christoph A. Maurer, R. Ruppert, et al.. (2015). Lymphknotendissektion nach primärer Chirurgie und neoadjuvanter Radiochemotherapie des Rektumkarzinoms. Der Chirurg. 86(12). 1132–1137. 4 indexed citations
16.
Straßburg, Joachim, R. Ruppert, Christoph A. Maurer, et al.. (2011). MRI-Based Indications for Neoadjuvant Radiochemotherapy in Rectal Carcinoma: Interim Results of a Prospective Multicenter Observational Study. Annals of Surgical Oncology. 18(10). 2790–2799. 30 indexed citations
17.
Rosenberg, Robert, Jutta Engel, Christiane J. Bruns, et al.. (2010). The Prognostic Value of Lymph Node Ratio in a Population-Based Collective of Colorectal Cancer Patients. Annals of Surgery. 251(6). 1070–1078. 119 indexed citations
18.
Fazio, Victor W., Massarat Zutshi, Feza H. Remzi, et al.. (2007). A Randomized Multicenter Trial to Compare Long-Term Functional Outcome, Quality of Life, and Complications of Surgical Procedures for Low Rectal Cancers. Annals of Surgery. 246(3). 481–490. 178 indexed citations
19.
Ruppert, R.. (2004). Traumatische anteriore Erstluxation der Hüfte beim Sportler. Sportverletzung · Sportschaden. 18(1). 34–36. 3 indexed citations
20.
Ruppert, R., et al.. (2003). Aplasie der A. tibialis posterior bei einem Kind mit idiopathischem Klumpfu�. Der Orthopäde. 32(5). 437–438. 4 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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