Karl J. Obrant

7.1k total citations
119 papers, 5.5k citations indexed

About

Karl J. Obrant is a scholar working on Orthopedics and Sports Medicine, Surgery and Epidemiology. According to data from OpenAlex, Karl J. Obrant has authored 119 papers receiving a total of 5.5k indexed citations (citations by other indexed papers that have themselves been cited), including 75 papers in Orthopedics and Sports Medicine, 53 papers in Surgery and 24 papers in Epidemiology. Recurrent topics in Karl J. Obrant's work include Bone health and osteoporosis research (68 papers), Hip and Femur Fractures (33 papers) and Bone fractures and treatments (21 papers). Karl J. Obrant is often cited by papers focused on Bone health and osteoporosis research (68 papers), Hip and Femur Fractures (33 papers) and Bone fractures and treatments (21 papers). Karl J. Obrant collaborates with scholars based in Sweden, Finland and France. Karl J. Obrant's co-authors include Paul Gerdhem, Kristina Åkesson, Magnus K. Karlsson, Olof Johnell, Bo E. Nilsson, Ingemar Sernbo, Karin Ringsberg, Kaisa K. Ivaska, H. Kalervo Väänänen and Anders Isaksson and has published in prestigious journals such as The Journal of Clinical Endocrinology & Metabolism, Biochemical and Biophysical Research Communications and Journal of Clinical Epidemiology.

In The Last Decade

Karl J. Obrant

118 papers receiving 5.2k citations

Author Peers

Peers are selected by citation overlap in the author's most active subfields. citations · hero ref

Author Last Decade Papers Cites
Karl J. Obrant 3.3k 2.0k 977 941 894 119 5.5k
Kristina Åkesson 2.9k 0.9× 2.2k 1.1× 1.0k 1.1× 1.1k 1.2× 822 0.9× 176 6.0k
George P. Lyritis 2.9k 0.9× 1.7k 0.9× 1.0k 1.1× 1.1k 1.2× 1.0k 1.1× 121 4.9k
F. Munoz 3.5k 1.1× 1.4k 0.7× 1.1k 1.1× 1.0k 1.1× 714 0.8× 61 5.2k
F. Duboeuf 4.9k 1.5× 1.9k 1.0× 1.3k 1.3× 1.3k 1.4× 2.0k 2.2× 95 7.4k
Kerry Siminoski 2.3k 0.7× 1.6k 0.8× 682 0.7× 808 0.9× 520 0.6× 83 4.3k
Jan A. Falch 3.0k 0.9× 2.1k 1.0× 649 0.7× 722 0.8× 980 1.1× 99 5.5k
Elisabeth Sornay‐Rendu 5.2k 1.6× 1.8k 0.9× 1.8k 1.8× 1.8k 2.0× 1.2k 1.4× 79 6.9k
C. Mautalén 3.3k 1.0× 1.5k 0.7× 2.0k 2.1× 1.0k 1.1× 734 0.8× 160 5.6k
P. J. Meunier 4.3k 1.3× 1.2k 0.6× 1.4k 1.5× 1.1k 1.2× 2.2k 2.5× 54 6.2k
O. Johnell 3.8k 1.1× 2.1k 1.0× 1.1k 1.1× 920 1.0× 593 0.7× 29 5.0k

Countries citing papers authored by Karl J. Obrant

Since Specialization
Citations

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

Fields of papers citing papers by Karl J. Obrant

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Karl J. Obrant. 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 Karl J. Obrant. The network helps show where Karl J. Obrant may publish in the future.

Co-authorship network of co-authors of Karl J. Obrant

This figure shows the co-authorship network connecting the top 25 collaborators of Karl J. Obrant. A scholar is included among the top collaborators of Karl J. Obrant 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 Karl J. Obrant. Karl J. Obrant 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.
Syversen, Unni, Astrid Kamilla Stunes, Björn Gustafsson, et al.. (2009). Different skeletal effects of the peroxisome proliferator activated receptor (PPAR)α agonist fenofibrate and the PPARγ agonist pioglitazone. BMC Endocrine Disorders. 9(1). 10–10. 59 indexed citations
2.
Ivaska, Kaisa K., Paul Gerdhem, Kristina Åkesson, Patrick Garnero, & Karl J. Obrant. (2007). Effect of Fracture on Bone Turnover Markers: A Longitudinal Study Comparing Marker Levels Before and After Injury in 113 Elderly Women. Journal of Bone and Mineral Research. 22(8). 1155–1164. 118 indexed citations
3.
Karlsson, Magnus K., Ralph Hasserius, Paul Gerdhem, Karl J. Obrant, & Acke Ohlin. (2005). Vertebroplasty and kyphoplasty. Acta Orthopaedica. 76(5). 620–627. 24 indexed citations
4.
Gerdhem, Paul, Hans Mallmin, Kristina Åkesson, & Karl J. Obrant. (2004). Seasonal Variation in Bone Density in Postmenopausal Women. Journal of Clinical Densitometry. 7(1). 93–100. 10 indexed citations
5.
Gerdhem, Paul, K. Åkesson, & Karl J. Obrant. (2003). Effect of previous and present physical activity on bone mass in elderly women. Osteoporosis International. 14(3). 208–212. 17 indexed citations
6.
Magnusson, Håkan, Christian Lindén, Karl J. Obrant, O. Johnell, & Magnus K. Karlsson. (2001). Bone Mass Changes in Weight-Loaded and Unloaded Skeletal Regions Following a Fracture of the Hip. Calcified Tissue International. 69(2). 78–83. 18 indexed citations
7.
Magnusson, Håkan, Christian Lindén, Caroline Karlsson, Karl J. Obrant, & Magnus K. Karlsson. (2001). Exercise May Induce Reversible Low Bone Mass in Unloaded and High Bone Mass in Weight-Loaded Skeletal Regions. Osteoporosis International. 12(11). 950–955. 26 indexed citations
8.
Obrant, Karl J.. (2000). Management of fractures in severely osteoporotic bone : orthopedic and pharmacologic strategies. Springer eBooks. 6 indexed citations
9.
Nyquist, Fredrik, et al.. (1999). Ethanol and its effects on fracture healing and bone mass in male rats. Acta Orthopaedica Scandinavica. 70(2). 212–216. 25 indexed citations
10.
Obrant, Karl J.. (1996). Prognosis and rehabilitation after hip fracture. Osteoporosis International. 6(S3). 52–55. 4 indexed citations
11.
Nyquist, Fredrik, Sver­ker Ljunghall, M. Berglund, & Karl J. Obrant. (1996). Biochemical markers of bone metabolism after short and long time ethanol withdrawal in alcoholics. Bone. 19(1). 51–54. 45 indexed citations
12.
Karlsson, Magnus K., Jan‐Åke Nilsson, Ingemar Sernbo, et al.. (1996). Changes of bone mineral mass and soft tissue composition after hip fracture. Bone. 18(1). 19–22. 86 indexed citations
13.
Åkesson, Kristina, Marc D. Grynpas, R. G. V. Hancock, Rolf Odselius, & Karl J. Obrant. (1994). Energy-dispersive X-ray microanalysis of the bone mineral content in human trabecular bone: A comparison with ICPES and neutron activation analysis. Calcified Tissue International. 55(3). 236–239. 52 indexed citations
14.
Karlsson, Magnus K., Ralph Hasserius, & Karl J. Obrant. (1993). Individuals who sustain nonosteoporotic fractures continue to also sustain fragility fractures. Calcified Tissue International. 53(4). 229–231. 59 indexed citations
15.
Brandt, L., et al.. (1993). Myelography in the late postoperative period in patients subjected to anterior cervical decompression and fusion. Acta Neurochirurgica. 122(1-2). 97–101. 3 indexed citations
16.
Karlsson, Magnus K., Ralph Hasserius, & Karl J. Obrant. (1993). The ankle fracture as an index of future fracture risk: A 25–40 year follow-up of 1063 cases. Acta Orthopaedica Scandinavica. 64(4). 482–484. 16 indexed citations
17.
Önsten, Ingemar, et al.. (1993). Periarticular bone mineral content in rheumatoid arthritis and arthrosis of the hip: Dual photon X-ray absorptiometry in 53 cases. Acta Orthopaedica Scandinavica. 64(5). 530–532. 4 indexed citations
18.
Obrant, Karl J., Urban Bengnér, & P.D. Delmas. (1989). Bone gla: Protein in blood derived directly from human bone tissue. Calcified Tissue International. 44(4). 296–297. 1 indexed citations
19.
Obrant, Karl J., Urban Bengnér, Olof Johnell, Bo E. Nilsson, & Ingemar Sernbo. (1989). Increasing age-adjusted risk of fragility fractures: A sign of increasing osteoporosis in successive generations?. Calcified Tissue International. 44(3). 157–167. 185 indexed citations
20.

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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