Stefan Werlen

5.4k total citations · 1 hit paper
52 papers, 4.1k citations indexed

About

Stefan Werlen is a scholar working on Surgery, Orthopedics and Sports Medicine and Rheumatology. According to data from OpenAlex, Stefan Werlen has authored 52 papers receiving a total of 4.1k indexed citations (citations by other indexed papers that have themselves been cited), including 49 papers in Surgery, 16 papers in Orthopedics and Sports Medicine and 13 papers in Rheumatology. Recurrent topics in Stefan Werlen's work include Hip disorders and treatments (43 papers), Orthopaedic implants and arthroplasty (35 papers) and Bone and Joint Diseases (11 papers). Stefan Werlen is often cited by papers focused on Hip disorders and treatments (43 papers), Orthopaedic implants and arthroplasty (35 papers) and Bone and Joint Diseases (11 papers). Stefan Werlen collaborates with scholars based in Switzerland, United States and Germany. Stefan Werlen's co-authors include Michael Leunig, Reinhold Ganz, Klaus A. Siebenrock, Keita Ito, Tallal C. Mamisch, Martín Beck, Simon D. Steppacher, Morteza Kalhor, Moritz Tannast and Alfred Ungersböck and has published in prestigious journals such as Radiology, The American Journal of Sports Medicine and Clinical Orthopaedics and Related Research.

In The Last Decade

Stefan Werlen

52 papers receiving 3.9k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Femoroacetabular impingement and the cam-effect

2001 607 citations Keita Ito, Michael Leunig et al. Journal of Bone and Joint Surgery - British Volume profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Stefan Werlen Switzerland	30	3.9k	964	945	731	669	52	4.1k
J. W. Thomas Byrd United States	42	5.8k 1.5×	1.2k 1.2×	1.3k 1.3×	625 0.9×	591 0.9×	115	5.9k
Kay S. Jones United States	23	3.2k 0.8×	669 0.7×	629 0.7×	379 0.5×	304 0.5×	52	3.2k
Ira Zaltz United States	27	2.5k 0.6×	264 0.3×	405 0.4×	570 0.8×	161 0.2×	73	2.6k
Karl Treiber Switzerland	10	2.3k 0.6×	592 0.6×	502 0.5×	409 0.6×	326 0.5×	17	2.4k
Kawan Rakhra Canada	23	2.1k 0.5×	319 0.3×	462 0.5×	407 0.6×	360 0.5×	82	2.3k
Matteo Denti Italy	22	1.4k 0.4×	305 0.3×	637 0.7×	120 0.2×	249 0.4×	58	1.7k
Michael K. Shindle United States	30	2.4k 0.6×	419 0.4×	640 0.7×	188 0.3×	306 0.5×	62	2.7k
Norman Espinosa Switzerland	30	1.9k 0.5×	274 0.3×	1.6k 1.7×	202 0.3×	617 0.9×	87	2.9k
Mohamed Jarraya United States	24	948 0.2×	548 0.6×	502 0.5×	86 0.1×	450 0.7×	93	1.6k
Karl Eriksson Sweden	25	2.2k 0.6×	191 0.2×	1.3k 1.3×	164 0.2×	242 0.4×	69	2.4k

Countries citing papers authored by Stefan Werlen

Since Specialization

Citations

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

Fields of papers citing papers by Stefan Werlen

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Stefan Werlen

This figure shows the co-authorship network connecting the top 25 collaborators of Stefan Werlen. A scholar is included among the top collaborators of Stefan Werlen 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 Stefan Werlen. Stefan Werlen is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Hanke, Markus S., Simon D. Steppacher, Helen Anwander, et al.. (2016). What MRI Findings Predict Failure 10 Years After Surgery for Femoroacetabular Impingement?. Clinical Orthopaedics and Related Research. 475(4). 1192–1207. 38 indexed citations

Schmaranzer, Florian, Pascal C. Haefeli, Markus S. Hanke, et al.. (2016). How Does the dGEMRIC Index Change After Surgical Treatment for FAI? A Prospective Controlled Study: Preliminary Results. Clinical Orthopaedics and Related Research. 475(4). 1080–1099. 34 indexed citations

Werlen, Stefan, et al.. (2015). Menace d’accouchement prématuré : reproductibilité du test de détection de la PAMG-1 avant, puis après toucher vaginal et cervicométrie. Gynécologie Obstétrique & Fertilité. 43(10). 640–645. 10 indexed citations

Miozzari, Hermès H., et al.. (2014). No Regeneration of the Human Acetabular Labrum After Excision to Bone. Clinical Orthopaedics and Related Research. 473(4). 1349–1357. 15 indexed citations

Leunig, Michael, Peter Jüni, Stefan Werlen, et al.. (2013). Prevalence of cam and pincer-type deformities on hip MRI in an asymptomatic young Swiss female population: a cross-sectional study. Osteoarthritis and Cartilage. 21(4). 544–550. 54 indexed citations

Werlen, Stefan, et al.. (2012). Femoral morphology and epiphyseal growth plate changes of the hip during maturation: MR assessments in a 1-year follow-up on a cross-sectional asymptomatic cohort in the age range of 9–17 years. Skeletal Radiology. 41(11). 1381–1390. 37 indexed citations

Hoppe, Sven, Sebastian Quirbach, Tallal C. Mamisch, et al.. (2012). Axial T2* mapping in intervertebral discs: a new technique for assessment of intervertebral disc degeneration. European Radiology. 22(9). 2013–2019. 51 indexed citations

Dudda, Marcel, T.C. Mamisch, Andreas Krueger, et al.. (2011). Hip Arthroscopy After Surgical Hip Dislocation: Is Predictive Imaging Possible?. Arthroscopy The Journal of Arthroscopic and Related Surgery. 27(4). 486–492. 23 indexed citations

Mamisch, Tallal C., Bernd Bittersohl, Sebastian Apprich, et al.. (2011). Delayed gadolinium‐enhanced magnetic resonance imaging of cartilage (dGEMRIC) in Femoacetabular impingement. Journal of Orthopaedic Research®. 29(9). 1305–1311. 52 indexed citations

10.

Bittersohl, Bernd, Harish S. Hosalkar, Stefan Werlen, et al.. (2011). dGEMRIC and subsequent T1 mapping of the hip at 1.5 Tesla: Normative data on zonal and radial distribution in asymptomatic volunteers. Journal of Magnetic Resonance Imaging. 34(1). 101–106. 23 indexed citations

11.

Reichenbach, Stephan, Michael Leunig, Stefan Werlen, et al.. (2011). Association between cam-type deformities and magnetic resonance imaging-detected structural hip damage: A cross-sectional study in young men. Arthritis & Rheumatism. 63(12). 4023–4030. 75 indexed citations

12.

Bittersohl, Bernd, Harish S. Hosalkar, Young‐Jo Kim, et al.. (2010). T₁ assessment of hip joint cartilage following intra‐articular gadolinium injection: A pilot study. Magnetic Resonance in Medicine. 64(4). 1200–1207. 19 indexed citations

13.

Mamisch, Tallal C., Christoph Zilkens, Klaus A. Siebenrock, et al.. (2009). MRI of Hip Osteoarthritis and Implications for Surgery. Radiologic Clinics of North America. 47(4). 713–722. 8 indexed citations

14.

Bittersohl, Bernd, Harish S. Hosalkar, Young‐Jo Kim, et al.. (2009). Delayed gadolinium‐enhanced magnetic resonance imaging (dGEMRIC) of hip joint cartilage in femoroacetabular impingement (FAI): Are pre‐ and postcontrast imaging both necessary?. Magnetic Resonance in Medicine. 62(6). 1362–1367. 30 indexed citations

15.

Bittersohl, Bernd, Harish S. Hosalkar, Timothy Hughes, et al.. (2009). Feasibility of T mapping for the evaluation of hip joint cartilage at 1.5T using a three‐dimensional (3D), gradient‐echo (GRE) sequence: A prospective study. Magnetic Resonance in Medicine. 62(4). 896–901. 86 indexed citations

16.

Bittersohl, Bernd, Harish S. Hosalkar, Young‐Jo Kim, et al.. (2009). Reproducibility of dGEMRIC in assessment of hip joint cartilage: A prospective study. Journal of Magnetic Resonance Imaging. 30(1). 224–228. 41 indexed citations

17.

Steppacher, Simon D., Moritz Tannast, Stefan Werlen, & Klaus A. Siebenrock. (2008). Femoral Morphology Differs Between Deficient and Excessive Acetabular Coverage. Clinical Orthopaedics and Related Research. 466(4). 782–790. 134 indexed citations

18.

Leunig, Michael, Martín Beck, Morteza Kalhor, et al.. (2005). Fibrocystic Changes at Anterosuperior Femoral Neck: Prevalence in Hips with Femoroacetabular Impingement. Radiology. 236(1). 237–246. 176 indexed citations

19.

Leunig, Michael, David A. Podeszwa, Martín Beck, Stefan Werlen, & Reinhold Ganz. (2004). Magnetic Resonance Arthrography of Labral Disorders in Hips with Dysplasia and Impingement. Clinical Orthopaedics and Related Research. 418(418). 74–80. 242 indexed citations

20.

Ito, Keita, et al.. (2001). Femoroacetabular impingement and the cam-effect. Journal of Bone and Joint Surgery - British Volume. 83(2). 171–176. 607 indexed citations breakdown →

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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