Ragnar Johnsson

3.2k total citations
78 papers, 2.5k citations indexed

About

Ragnar Johnsson is a scholar working on Surgery, Pathology and Forensic Medicine and Radiology, Nuclear Medicine and Imaging. According to data from OpenAlex, Ragnar Johnsson has authored 78 papers receiving a total of 2.5k indexed citations (citations by other indexed papers that have themselves been cited), including 67 papers in Surgery, 29 papers in Pathology and Forensic Medicine and 15 papers in Radiology, Nuclear Medicine and Imaging. Recurrent topics in Ragnar Johnsson's work include Orthopaedic implants and arthroplasty (29 papers), Spine and Intervertebral Disc Pathology (29 papers) and Orthopedic Infections and Treatments (19 papers). Ragnar Johnsson is often cited by papers focused on Orthopaedic implants and arthroplasty (29 papers), Spine and Intervertebral Disc Pathology (29 papers) and Orthopedic Infections and Treatments (19 papers). Ragnar Johnsson collaborates with scholars based in Sweden, United States and Norway. Ragnar Johnsson's co-authors include Isam Atroshi, Ewald Ornstein, Björn Strömqvist, Paul Axelsson, Herbert Franzén, Martin Sundberg, Per Aspenberg, Christina Gummesson, Jonas Ranstam and Manfred Hofer and has published in prestigious journals such as Journal of Bone and Joint Surgery, Spine and Clinical Orthopaedics and Related Research.

In The Last Decade

Ragnar Johnsson

77 papers receiving 2.4k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Ragnar Johnsson Sweden 28 2.1k 827 664 535 324 78 2.5k
Arno Lataster Netherlands 22 772 0.4× 460 0.6× 208 0.3× 370 0.7× 124 0.4× 52 1.3k
Yasuo Mikami Japan 21 910 0.4× 940 1.1× 89 0.1× 453 0.8× 210 0.6× 83 1.7k
Yasutsugu Yukawa Japan 40 3.9k 1.8× 3.4k 4.1× 130 0.2× 521 1.0× 276 0.9× 137 4.5k
H. Gordon Deen United States 23 1.2k 0.5× 925 1.1× 116 0.2× 288 0.5× 164 0.5× 57 1.7k
Gregory E. Lutz United States 23 1.6k 0.7× 1.6k 1.9× 55 0.1× 1.2k 2.2× 405 1.3× 56 2.3k
Ashok Biyani United States 29 2.4k 1.1× 1.9k 2.3× 104 0.2× 796 1.5× 358 1.1× 98 3.0k
Richard A. Yeasting United States 37 3.6k 1.7× 2.3k 2.8× 193 0.3× 295 0.6× 384 1.2× 132 4.1k
Yasuhiro Shiga Japan 19 800 0.4× 656 0.8× 110 0.2× 299 0.6× 224 0.7× 148 1.3k
M Wybier France 17 989 0.5× 867 1.0× 44 0.1× 565 1.1× 258 0.8× 80 1.5k
K Yong-Hing Canada 20 1.5k 0.7× 1.6k 2.0× 50 0.1× 1.1k 2.1× 404 1.2× 39 2.2k

Countries citing papers authored by Ragnar Johnsson

Since Specialization
Citations

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

Fields of papers citing papers by Ragnar Johnsson

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Ragnar Johnsson

This figure shows the co-authorship network connecting the top 25 collaborators of Ragnar Johnsson. A scholar is included among the top collaborators of Ragnar Johnsson 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 Ragnar Johnsson. Ragnar Johnsson 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.
Strömqvist, Björn, S. Van Den Berg, Paul Gerdhem, et al.. (2013). X-Stop Versus Decompressive Surgery for Lumbar Neurogenic Intermittent Claudication. Spine. 38(17). 1436–1442. 102 indexed citations
2.
Atroshi, Isam, Manfred Hofer, Gert-Uno Larsson, et al.. (2009). Open Compared With 2-Portal Endoscopic Carpal Tunnel Release: A 5-Year Follow-Up of a Randomized Controlled Trial. The Journal Of Hand Surgery. 34(2). 266–272. 77 indexed citations
3.
Axelsson, Paul, Ragnar Johnsson, & Björn Strömqvist. (2007). Adjacent segment hypermobility after lumbar spine fusion: No association with progressive degeneration of the segment 5 years after surgery. Acta Orthopaedica. 78(6). 834–839. 40 indexed citations
4.
Ornstein, Ewald, Herbert Franzén, Ragnar Johnsson, et al.. (2006). Five-year Follow-up of Socket Movements and Loosening After Revision With Impacted Morselized Allograft Bone and Cement. The Journal of Arthroplasty. 21(7). 975–984. 22 indexed citations
5.
Johnsson, Ragnar. (2004). Surgical treatment of symptomatic recurrent disc herniation. Hospital Pediatrics. 10(11). e8–e10. 1 indexed citations
6.
Ornstein, Ewald, Herbert Franzén, Ragnar Johnsson, et al.. (2004). Hip revision using the Exeter stem, impacted morselized allograft bone and cementA consecutive 5-year radiostereometric and radiographic study in 15 hips. Acta Orthopaedica Scandinavica. 75(5). 533–543. 30 indexed citations
7.
Atroshi, Isam, Ewald Ornstein, Herbert Franzén, et al.. (2004). Quality of life after hip revision with impaction bone grafting on a par with that 4 years after primary cemented arthroplasty. Acta Orthopaedica Scandinavica. 75(6). 677–683. 10 indexed citations
8.
Gummesson, Christina, Isam Atroshi, Charlotte Ekdahl, Ragnar Johnsson, & Ewald Ornstein. (2003). Chronic upper extremity pain and co‐occurring symptoms in a general population. Arthritis Care & Research. 49(5). 697–702. 29 indexed citations
9.
Axelsson, Paul, et al.. (2000). Is There Increased Intervertebral Mobility in Isthmic Adult Spondylolisthesis?. Spine. 25(13). 1701–1703. 37 indexed citations
10.
Johnsson, Ragnar, et al.. (1999). Patient satisfaction, function and return to work after knee arthroplasty. Acta Orthopaedica Scandinavica. 70(4). 343–347. 54 indexed citations
11.
Johnsson, Ragnar, Paul Axelsson, Gunnar Gunnarsson, & Björn Strömqvist. (1999). Stability of Lumbar Fusion With Transpedicular Fixation Determined by Roentgen Stereophotogrammetric Analysis. Spine. 24(7). 687–690. 21 indexed citations
12.
Ornstein, Ewald, et al.. (1999). Migration of the acetabular component after revision with impacted morselized allografts: A radiostereometric 2-year follow-up analysis of 21 cases. Acta Orthopaedica Scandinavica. 70(4). 338–342. 27 indexed citations
13.
Tägil, Magnus, Ragnar Johnsson, Björn Strömqvist, & Per Aspenberg. (1999). Incomplete incorporation of morselized and impacted autologous bone graft: A histological study in 4 intracorporally grafted lumbar fractures. Acta Orthopaedica Scandinavica. 70(6). 555–558. 21 indexed citations
14.
Tullberg, Tycho, et al.. (1998). Manipulation Does Not Alter the Position of the Sacroiliac Joint. Spine. 23(10). 1124–1128. 93 indexed citations
15.
Leivseth, Gunnar, Paul Brinckmann, Wolfgang Frobin, Ragnar Johnsson, & Björn Strömqvist. (1998). Assessment of Sagittal Plane Segmental Motion in the Lumbar Spine. Spine. 23(23). 2648–2655. 36 indexed citations
16.
Jönsson, Bo, Ragnar Johnsson, & Björn Strömqvist. (1998). Contained and Noncontained Lumbar Disc Herniation in the Same Patient. Spine. 23(2). 277–280. 1 indexed citations
17.
Atroshi, Isam, Ragnar Johnsson, & Ewald Ornstein. (1995). Radial tunnel release:Unpredictable outcome in 37 consecutive cases with a 1-5 year follow-up. Acta Orthopaedica Scandinavica. 66(3). 255–257. 38 indexed citations
18.
Franzén, Herbert, Åke Carlsson, Ragnar Johnsson, Anders Rydholm, & Rolf Önnerfält. (1994). Bony atrophy after mega total hip replacement for bone tumors: 11 cases followed for 3-15 years. Acta Orthopaedica Scandinavica. 65(5). 513–516. 4 indexed citations
19.
Strömqvist, Björn, et al.. (1992). Early intensive treatment of clubfootxs. Acta Orthopaedica Scandinavica. 63(2). 183–188. 18 indexed citations
20.
Axelsson, Paul, et al.. (1992). Effect of Lumbar Orthosis on Intervertebral Mobility. Spine. 17(6). 678–681. 89 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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