O Paar

1.2k total citations · 1 hit paper
75 papers, 906 citations indexed

About

O Paar is a scholar working on Surgery, Epidemiology and Orthopedics and Sports Medicine. According to data from OpenAlex, O Paar has authored 75 papers receiving a total of 906 indexed citations (citations by other indexed papers that have themselves been cited), including 47 papers in Surgery, 17 papers in Epidemiology and 14 papers in Orthopedics and Sports Medicine. Recurrent topics in O Paar's work include Orthopedic Surgery and Rehabilitation (14 papers), Shoulder Injury and Treatment (14 papers) and Knee injuries and reconstruction techniques (10 papers). O Paar is often cited by papers focused on Orthopedic Surgery and Rehabilitation (14 papers), Shoulder Injury and Treatment (14 papers) and Knee injuries and reconstruction techniques (10 papers). O Paar collaborates with scholars based in Germany, United States and Switzerland. O Paar's co-authors include Matthias Walter, Dirk A. Hollander, Hans-Josef Erli, Tobias Wirtz, Richard Martin Sellei, B. Schmidt-Rohlfing, H. J. Erli, R. Kasperk, Ralf Minkenberg and D Riediger and has published in prestigious journals such as Biomaterials, International Journal of Sports Medicine and International Journal of Oral and Maxillofacial Surgery.

In The Last Decade

O Paar

72 papers receiving 860 citations

Hit Papers

Structural, mechanical and in vitro characterization of i... 2005 2026 2012 2019 2005 100 200 300
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. Structural, mechanical and in vitro characterization of individually structured Ti–6Al–4V produced by direct laser forming
    2005 377 citations Dirk A. Hollander, Matthias Walter et al. Biomaterials profile →

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
O Paar Germany 12 364 324 241 189 158 75 906
Michiel Mulier Belgium 23 1.3k 3.5× 930 2.9× 566 2.3× 409 2.2× 330 2.1× 72 2.3k
Sauli Kujala Finland 13 245 0.7× 304 0.9× 73 0.3× 26 0.1× 203 1.3× 22 637
R. Gradinger Germany 21 612 1.7× 216 0.7× 478 2.0× 28 0.1× 121 0.8× 99 1.9k
Ari Itälä Finland 12 802 2.2× 508 1.6× 60 0.2× 39 0.2× 104 0.7× 22 1.2k
Robert Karpiński Poland 24 463 1.3× 425 1.3× 194 0.8× 36 0.2× 27 0.2× 107 1.4k
Ahmad Hafiz Zulkifly Malaysia 12 218 0.6× 145 0.4× 165 0.7× 91 0.5× 93 0.6× 43 575
A W Miles United Kingdom 27 1.7k 4.7× 489 1.5× 135 0.6× 39 0.2× 74 0.5× 136 2.3k
Soo‐Hwan Byun South Korea 21 253 0.7× 386 1.2× 78 0.3× 67 0.4× 108 0.7× 95 1.2k
Heidi‐Lynn Ploeg United States 21 592 1.6× 491 1.5× 52 0.2× 45 0.2× 81 0.5× 80 1.3k
Paul De Meester Belgium 17 551 1.5× 332 1.0× 236 1.0× 17 0.1× 192 1.2× 48 1.1k

Countries citing papers authored by O Paar

Since Specialization
Citations

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

Fields of papers citing papers by O Paar

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of O Paar

This figure shows the co-authorship network connecting the top 25 collaborators of O Paar. A scholar is included among the top collaborators of O Paar 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 O Paar. O Paar 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.
Piefke, Martina, Martina Pestinger, Frank Kastrau, et al.. (2008). The Neurofunctional Mechanisms of Traumatic and Non-Traumatic Memory in Patients with Acute PTSD Following Accident Trauma. Neurocase. 13(5-6). 342–357. 28 indexed citations
2.
Paar, O, et al.. (2008). Patellofemorale Druck- und Kontaktflächenmessungen bei Jägerhutpatella. Zeitschrift für Orthopädie und ihre Grenzgebiete. 125(6). 679–686.
3.
Erli, Hans-Josef, et al.. (2005). The effect of surface modification of a porous TiO2/perlite composite on the ingrowth of bone tissue in vivo. Biomaterials. 27(8). 1270–1276. 26 indexed citations
4.
Hollander, Dirk A., Matthias Walter, Tobias Wirtz, et al.. (2005). Structural, mechanical and in vitro characterization of individually structured Ti–6Al–4V produced by direct laser forming. Biomaterials. 27(7). 955–963. 377 indexed citations breakdown →
5.
Walter, Matthias, Guy Steffens, Dirk A. Hollander, et al.. (2004). In vitro behavior of a porous TiO2/perlite composite and its surface modification with fibronectin. Biomaterials. 26(16). 2813–2826. 22 indexed citations
6.
Erli, H. J., et al.. (2002). Idiopathic Compartment Syndrome: A Case Report. The Journal of Trauma: Injury, Infection, and Critical Care. 53(1). 122–124. 9 indexed citations
7.
Klever, P., et al.. (2002). Beeinflussung humaner Osteoblasten durch verschiedene Analgetika. Der Unfallchirurg. 105(6). 527–531. 15 indexed citations
8.
Ambacher, T., et al.. (2001). Kraftverhältnisse und funktionelle Ergebnisse nach operativer Therapie der Achillessehnenrupturmittels Fibrinklebung. Zentralblatt für Chirurgie - Zeitschrift für Allgemeine Viszeral- Thorax- und Gefäßchirurgie. 126(12). 989–994. 8 indexed citations
9.
Paar, O, S. Andereya, Gundula Staatz, T. Ambacher, & H. J. Erli. (2001). Wertigkeit von rekombinantem humanem osteogenetischem Protein als Knochenersatzmaterial bei der lumbalen Spondylodese. Der Unfallchirurg. 104(8). 700–709. 4 indexed citations
10.
Ambacher, T., H. J. Erli, & O Paar. (2000). Behandlungsergebnisse nach primärer Hemialloarthroplastik bei dislozierten Humeruskopffrakturen. Zentralblatt für Chirurgie - Zeitschrift für Allgemeine Viszeral- Thorax- und Gefäßchirurgie. 125(9). 750–755. 10 indexed citations
11.
Ambacher, T., et al.. (2000). Mikroangiographische Darstellung der Gef��versorgung des medialen Kollateralbandes am Kniegelenk. Der Unfallchirurg. 103(3). 208–214. 1 indexed citations
12.
Erli, H. J., et al.. (2000). Determinanten der globalen Lebensqualität nach Polytrauma. Der Chirurg. 71(9). 1132–1137. 14 indexed citations
13.
Ambacher, T. & O Paar. (2000). Diagnostik und Therapieplanung nach traumatischer ventraler Schulterluxation anhand extrinsischer Prognosefaktoren. Sportverletzung · Sportschaden. 14(4). 144–150. 1 indexed citations
14.
Ambacher, T. & O Paar. (1999). Traumatische Schulterluxation beim jugendlichen Sportler - Offene oder arthroskopische Stabilisierung?. Sportverletzung · Sportschaden. 13(3). 68–73. 3 indexed citations
15.
Klosterhalfen, B., et al.. (1997). “Ligamentization” of the periosteal flap is responsible for its stability in the replacement of ligaments of the lateral ankle joint. Der Chirurg. 68(11). 1146–1146. 2 indexed citations
16.
Paar, O, et al.. (1995). Verletzungen im Reitsport - Häufigkeit und Entstehungsursachen. Sportverletzung · Sportschaden. 9(3). 77–83. 15 indexed citations
17.
Paar, O, et al.. (1991). Zwingt die Durchführung einer gehaltenen Röntgenaufnahme des OSG bei frischer fibularer Kapselbandläsion zur Operation?. Sportverletzung · Sportschaden. 5(2). 99–102. 2 indexed citations
18.
Paar, O, et al.. (1989). [Displacement of the tibial tuberosity in retropatellar cartilage damage and recurrent patellar dislocation].. PubMed. 19(1). 35–42. 1 indexed citations
19.
Paar, O, et al.. (1988). Die rezidivierende Schulterluxation. Sportverletzung · Sportschaden. 2(3). 100–105. 2 indexed citations
20.
Paar, O, et al.. (1983). [Therapy of joint infection following interventions on the soft tissue of the knee joint].. PubMed. 86(11). 489–91. 3 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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