Leif Ryd

6.5k total citations · 1 hit paper
122 papers, 5.2k citations indexed

About

Leif Ryd is a scholar working on Surgery, Biomedical Engineering and Rheumatology. According to data from OpenAlex, Leif Ryd has authored 122 papers receiving a total of 5.2k indexed citations (citations by other indexed papers that have themselves been cited), including 103 papers in Surgery, 22 papers in Biomedical Engineering and 17 papers in Rheumatology. Recurrent topics in Leif Ryd's work include Total Knee Arthroplasty Outcomes (87 papers), Orthopaedic implants and arthroplasty (64 papers) and Knee injuries and reconstruction techniques (42 papers). Leif Ryd is often cited by papers focused on Total Knee Arthroplasty Outcomes (87 papers), Orthopaedic implants and arthroplasty (64 papers) and Knee injuries and reconstruction techniques (42 papers). Leif Ryd collaborates with scholars based in Sweden, United Kingdom and Denmark. Leif Ryd's co-authors include Søren Toksvig‐Larsen, Stefan Lohmander, Lars Lidgren, Michael Dunbar, Anders Lindstrand, Gunnar Flivik, Leif Dahlberg, A. Lindstrand, Peter Herberts and E.R. Valstar 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

Leif Ryd

122 papers receiving 5.0k citations

Hit Papers

Roentgen stereophotogrammetric analysis as a predictor of... 1995 2026 2005 2015 1995 100 200 300 400
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.

  1. Roentgen stereophotogrammetric analysis as a predictor of mechanical loosening of knee prostheses
    1995 499 citations Leif Ryd, Søren Toksvig‐Larsen 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 Career Trend Papers Cites
Leif Ryd Sweden 39 4.4k 923 868 529 338 122 5.2k
Volkmar Jansson Germany 41 4.4k 1.0× 688 0.7× 1.3k 1.5× 698 1.3× 466 1.4× 283 6.0k
Søren Toksvig‐Larsen Sweden 39 4.5k 1.0× 983 1.1× 648 0.7× 389 0.7× 569 1.7× 107 5.2k
Wasim Khan United Kingdom 40 3.1k 0.7× 834 0.9× 1.1k 1.3× 892 1.7× 662 2.0× 273 5.2k
Niels Egund Sweden 37 2.7k 0.6× 680 0.7× 1.2k 1.4× 935 1.8× 370 1.1× 140 4.0k
Markus Tingart Germany 41 5.3k 1.2× 1.2k 1.3× 939 1.1× 1.8k 3.5× 1.1k 3.3× 274 7.2k
Victor N. Cassar‐Pullicino United Kingdom 33 2.0k 0.5× 462 0.5× 1.1k 1.3× 503 1.0× 237 0.7× 130 3.3k
Masatoshi Naito Japan 34 3.3k 0.8× 365 0.4× 720 0.8× 692 1.3× 225 0.7× 240 4.4k
Donald D. Anderson United States 36 2.6k 0.6× 870 0.9× 1.2k 1.3× 1.0k 1.9× 892 2.6× 163 4.0k
A. Seth Greenwald United States 31 3.0k 0.7× 996 1.1× 271 0.3× 352 0.7× 423 1.3× 97 3.7k
Gregory I. Bain Australia 41 5.3k 1.2× 608 0.7× 697 0.8× 326 0.6× 1.4k 4.1× 240 6.0k

Countries citing papers authored by Leif Ryd

Since Specialization
Citations

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

Fields of papers citing papers by Leif Ryd

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Leif Ryd

This figure shows the co-authorship network connecting the top 25 collaborators of Leif Ryd. A scholar is included among the top collaborators of Leif Ryd 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 Leif Ryd. Leif Ryd 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.
Dunbar, Michael & Leif Ryd. (2025). The power of registries and radiostereometric analysis (RSA). Acta Orthopaedica. 96. 11–12. 1 indexed citations
2.
Bernfort, Lars, Daniel Granfeldt, & Leif Ryd. (2023). Individualized metal implants for focal cartilage lesions in the knee can be cost-effective: A simulation on 47-year-old in a Swedish setting. Journal of ISAKOS Joint Disorders & Orthopaedic Sports Medicine. 8(3). 197–203. 1 indexed citations
3.
Ryd, Leif, Kjell Hultenby, Håkan Hedlund, et al.. (2015). Treatment of full thickness focal cartilage lesions with a metallic resurfacing implant in a sheep animal model, 1 year evaluation. Osteoarthritis and Cartilage. 24(3). 484–493. 38 indexed citations
4.
Berg, Hans E., et al.. (2014). Fixation of a double-coated titanium-hydroxyapatite focal knee resurfacing implant. Osteoarthritis and Cartilage. 22(6). 836–844. 16 indexed citations
5.
Ryd, Leif, et al.. (2008). A randomised RSA study of Peri-Apatite™ HA coating of a total knee prosthesis. The Knee. 15(3). 211–216. 33 indexed citations
6.
Valstar, E.R., H.S. Gill, Leif Ryd, et al.. (2005). Guidelines for standardization of radiostereometry (RSA) of implants. Acta Orthopaedica. 76(4). 563–572. 446 indexed citations
7.
Blunn, Gordon, et al.. (2004). Histologic reactions to particulate wear debris in different mesenchymal tissues. The Journal of Arthroplasty. 19(4). 481–487. 4 indexed citations
8.
Flivik, Gunnar, et al.. (2004). Improved acetabular pressurization gives better cement penetration. The Journal of Arthroplasty. 19(7). 911–918. 18 indexed citations
9.
Perillo‐Marcone, Antonio, Leif Ryd, & Mark Taylor. (2001). Inter-patient evaluation of stresses in proximal implanted tibiae. ePrints Soton (University of Southampton). 1 indexed citations
10.
Ryd, Leif, Xunhua Yuan, & Håkan Löfgren. (2000). Methods for determining the accuracy of radiostereometric analysis (RSA). Acta Orthopaedica Scandinavica. 71(4). 403–408. 74 indexed citations
11.
Valstar, E.R., Henri A. Vrooman, Søren Toksvig‐Larsen, Leif Ryd, & Rob G. H. H. Nelissen. (2000). Digital automated RSA compared to manually operated RSA. Journal of Biomechanics. 33(12). 1593–1599. 69 indexed citations
12.
Toksvig‐Larsen, Søren, et al.. (2000). Hydroxyapatite-Enhanced Tibial Prosthetic Fixation. Clinical Orthopaedics and Related Research. 370(370). 192–200. 49 indexed citations
13.
Ranstam, Jonas, Leif Ryd, & Ingemar Önsten. (1999). Accurate accuracy assessment: Review of basic principles. Acta Orthopaedica Scandinavica. 70(4). 319–321. 101 indexed citations
14.
Hilding, Maria, et al.. (1999). Gait affecs tibial component fixation. The Journal of Arthroplasty. 14(5). 589–593. 19 indexed citations
15.
Toksvig‐Larsen, Søren, G. Magyar, Ingemar Önsten, Leif Ryd, & Anders Lindstrand. (1998). Fixation of the tibial component of total knee arthroplasty after high tibial osteotomy: A matched radiostereometric study. Journal of Bone and Joint Surgery - British Volume. 80(2). 295–297. 40 indexed citations
16.
Hilding, Maria, et al.. (1997). Quality of life after knee arthroplasty A: randomized study of 3 designs in 42 patients, compared after 4 years. Acta Orthopaedica Scandinavica. 68(2). 156–160. 25 indexed citations
17.
Hilding, Maria, Xunhua Yuan, & Leif Ryd. (1995). The stability of three different cementless tibial components: A randomized radiostereometric study in 45 knee arthroplasty patients. Acta Orthopaedica Scandinavica. 66(1). 21–27. 36 indexed citations
18.
Toksvig‐Larsen, Søren, et al.. (1994). Improved bone cutting using a semirotating saw: A cadaver study of the cut surface on tibial condyles. Acta Orthopaedica. 65(4). 412–414. 7 indexed citations
19.
Fridén, Thomas, Leif Ryd, & Anders Lindstrand. (1992). Laxity and graft fixation after reconstruction of the anterior cruciate ligament. Acta Orthopaedica Scandinavica. 63(1). 80–84. 43 indexed citations
20.
Toksvig‐Larsen, Søren & Leif Ryd. (1991). Surface flatness after bone cutting: A cadaver study of tibial condyles. Acta Orthopaedica Scandinavica. 62(1). 15–18. 45 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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