Robert Sonntag

1.1k total citations
50 papers, 794 citations indexed

About

Robert Sonntag is a scholar working on Surgery, Mechanical Engineering and Epidemiology. According to data from OpenAlex, Robert Sonntag has authored 50 papers receiving a total of 794 indexed citations (citations by other indexed papers that have themselves been cited), including 48 papers in Surgery, 8 papers in Mechanical Engineering and 5 papers in Epidemiology. Recurrent topics in Robert Sonntag's work include Orthopaedic implants and arthroplasty (46 papers), Total Knee Arthroplasty Outcomes (37 papers) and Orthopedic Infections and Treatments (27 papers). Robert Sonntag is often cited by papers focused on Orthopaedic implants and arthroplasty (46 papers), Total Knee Arthroplasty Outcomes (37 papers) and Orthopedic Infections and Treatments (27 papers). Robert Sonntag collaborates with scholars based in Germany, Austria and United States. Robert Sonntag's co-authors include Jan Philippe Kretzer, Joern Reinders, Steffen Braun, Ulrike Mueller, Stefan Schroeder, Jens Gibmeier, Babak Moradi, Sebastian Jaeger, Eike Jakubowitz and Marcus R. Streit and has published in prestigious journals such as PLoS ONE, Journal of Bone and Joint Surgery and Journal of Biomechanics.

In The Last Decade

Robert Sonntag

49 papers receiving 777 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 Sonntag Germany 16 625 187 116 105 103 50 794
Joern Reinders Germany 14 458 0.7× 158 0.8× 86 0.7× 91 0.9× 91 0.9× 23 573
Daniel W. MacDonald United States 22 1.3k 2.1× 217 1.2× 152 1.3× 74 0.7× 102 1.0× 57 1.5k
Sang‐Hyun Park United States 12 741 1.2× 154 0.8× 83 0.7× 49 0.5× 36 0.3× 35 894
H. C. Amstutz United States 15 1.7k 2.7× 264 1.4× 169 1.5× 183 1.7× 58 0.6× 23 1.8k
Maurizio Crova Italy 13 818 1.3× 104 0.6× 119 1.0× 65 0.6× 45 0.4× 31 960
Marta L. Villarraga United States 14 758 1.2× 73 0.4× 194 1.7× 64 0.6× 37 0.4× 24 914
U. Holzwarth Germany 13 423 0.7× 112 0.6× 225 1.9× 34 0.3× 101 1.0× 28 642
C.E. Brooks Canada 10 1.1k 1.7× 142 0.8× 210 1.8× 24 0.2× 152 1.5× 11 1.2k
Michael Sobieraj United States 11 308 0.5× 95 0.5× 140 1.2× 136 1.3× 50 0.5× 18 545
Harry Hothi United Kingdom 20 992 1.6× 182 1.0× 149 1.3× 22 0.2× 91 0.9× 87 1.1k

Countries citing papers authored by Robert Sonntag

Since Specialization
Citations

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

Fields of papers citing papers by Robert Sonntag

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Robert Sonntag

This figure shows the co-authorship network connecting the top 25 collaborators of Robert Sonntag. A scholar is included among the top collaborators of Robert Sonntag 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 Sonntag. Robert Sonntag 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.
Reiner, Tobias, Robert Sonntag, Jan Philippe Kretzer, et al.. (2025). A high offset stem design does not increase stem migration under full weight bearing in cementless total hip arthroplasty: a model-based RSA study. Arthroplasty. 7(1). 7–7.
2.
Guehring, Thorsten, Dennis Nurjadi, Robert Sonntag, et al.. (2021). Systemic Administration of PTH Supports Vascularization in Segmental Bone Defects Filled with Ceramic-Based Bone Graft Substitute. Cells. 10(8). 2058–2058. 9 indexed citations
3.
Jäger, Sebastian, et al.. (2021). Tribologie in der Hüftendoprothetik. Der Orthopäde. 50(4). 259–269. 2 indexed citations
4.
Helbig, Lars, Thorsten Guehring, Dennis Nurjadi, et al.. (2020). A new sequential animal model for infection-related non-unions with segmental bone defect. BMC Musculoskeletal Disorders. 21(1). 329–329. 12 indexed citations
5.
Seehaus, Frank, Robert Sonntag, Michaël Schwarze, et al.. (2020). Früherkennung des Risikos der späteren Implantatlockerung mittels der Röntgen Stereophotogrammetrischen Analyse (RSA). Der Orthopäde. 49(12). 1042–1048. 2 indexed citations
6.
Rues, Stefan, et al.. (2020). Effect of bone quality and quantity on the primary stability of dental implants in a simulated bicortical placement. Clinical Oral Investigations. 25(3). 1265–1272. 32 indexed citations
7.
Braun, Steffen, Ulrike Mueller, Stefan Schroeder, et al.. (2019). Backside wear, particle migration and effectiveness of screw hole plugs in acetabular hip joint replacement with cross-linked polyethylene. Acta Biomaterialia. 97. 239–246. 12 indexed citations
8.
Schroeder, Stefan, Steffen Braun, Ulrike Mueller, et al.. (2019). Carbon-fibre-reinforced PEEK: An alternative material for flexion bushings of rotating hinged knee joints?. Journal of the mechanical behavior of biomedical materials. 101. 103434–103434. 17 indexed citations
9.
Braun, Steffen, et al.. (2018). Influence of joint kinematics on polyethylene wear in anatomic shoulder joint arthroplasty. Journal of Shoulder and Elbow Surgery. 27(9). 1679–1685. 14 indexed citations
10.
Braun, Steffen, Robert Sonntag, Stefan Schroeder, et al.. (2018). Backside wear in acetabular hip joint replacement. Acta Biomaterialia. 83. 467–476. 17 indexed citations
11.
Helbig, Lars, Georg W. Omlor, Thorsten Guehring, et al.. (2018). Bone morphogenetic proteins − 7 and − 2 in the treatment of delayed osseous union secondary to bacterial osteitis in a rat model. BMC Musculoskeletal Disorders. 19(1). 261–261. 11 indexed citations
12.
Kretzer, Jan Philippe, Ulrike Mueller, Marcus R. Streit, et al.. (2017). Ion release in ceramic bearings for total hip replacement: Results from an in vitro and an in vivo study. International Orthopaedics. 42(1). 65–70. 7 indexed citations
13.
Mueller, Ulrike, Benjamin Panzram, Steffen Braun, Robert Sonntag, & Jan Philippe Kretzer. (2017). Mixing of Head-Stem Components in Total Hip Arthroplasty. The Journal of Arthroplasty. 33(3). 945–951. 8 indexed citations
14.
Mueller, Ulrike, Steffen Braun, Stefan Schroeder, et al.. (2017). Influence of humeral head material on wear performance in anatomic shoulder joint arthroplasty. Journal of Shoulder and Elbow Surgery. 26(10). 1756–1764. 27 indexed citations
15.
Mueller, Ulrike, et al.. (2017). Same Same but Different? 12/14 Stem and Head Tapers in Total Hip Arthroplasty. The Journal of Arthroplasty. 32(10). 3191–3199. 41 indexed citations
16.
Sonntag, Robert, Joern Reinders, Jens Gibmeier, & Jan Philippe Kretzer. (2015). Fatigue Performance of Medical Ti6Al4V Alloy after Mechanical Surface Treatments. PLoS ONE. 10(3). e0121963–e0121963. 60 indexed citations
17.
Reinders, Joern, et al.. (2014). Force-controlled dynamic wear testing of total ankle replacements. Acta Biomaterialia. 12. 332–340. 6 indexed citations
18.
Kretzer, Jan Philippe, Christian Schröder, Joern Reinders, et al.. (2012). Grundlagen zur tribologischen Analyse von Endoprothesen. Der Orthopäde. 41(10). 844–852. 13 indexed citations
19.
Kretzer, Jan Philippe, et al.. (2010). Effect of joint laxity on polyethylene wear in total knee replacement. Journal of Biomechanics. 43(6). 1092–1096. 34 indexed citations
20.
Kretzer, Jan Philippe, et al.. (2010). Wear analysis of unicondylar mobile bearing and fixed bearing knee systems: A knee simulator study. Acta Biomaterialia. 7(2). 710–715. 58 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 Joern Reinders Breakdown of academic impact, for papers by Daniel W. MacDonald Breakdown of academic impact, for papers by Sang‐Hyun Park Breakdown of academic impact, for papers by H. C. Amstutz Breakdown of academic impact, for papers by Maurizio Crova Breakdown of academic impact, for papers by Marta L. Villarraga Breakdown of academic impact, for papers by U. Holzwarth Breakdown of academic impact, for papers by C.E. Brooks Breakdown of academic impact, for papers by Michael Sobieraj Breakdown of academic impact, for papers by Harry Hothi
Rankless by CCL
2026