Fumihiro Oha

1.1k total citations
39 papers, 825 citations indexed

About

Fumihiro Oha is a scholar working on Surgery, Pathology and Forensic Medicine and Pharmacology. According to data from OpenAlex, Fumihiro Oha has authored 39 papers receiving a total of 825 indexed citations (citations by other indexed papers that have themselves been cited), including 32 papers in Surgery, 29 papers in Pathology and Forensic Medicine and 8 papers in Pharmacology. Recurrent topics in Fumihiro Oha's work include Spine and Intervertebral Disc Pathology (29 papers), Spinal Fractures and Fixation Techniques (19 papers) and Musculoskeletal pain and rehabilitation (8 papers). Fumihiro Oha is often cited by papers focused on Spine and Intervertebral Disc Pathology (29 papers), Spinal Fractures and Fixation Techniques (19 papers) and Musculoskeletal pain and rehabilitation (8 papers). Fumihiro Oha collaborates with scholars based in Japan. Fumihiro Oha's co-authors include Masahiro Kanayama, Tomoyuki Hashimoto, Keiichi Shigenobu, Daisuke Togawa, Shigeru Yamane, Takashi Ishida, Akira Iwata, Norimasa Iwasaki, Hiroshi Tada and Kazuki Yamamoto and has published in prestigious journals such as Scientific Reports, Spine and Clinical Orthopaedics and Related Research.

In The Last Decade

Fumihiro Oha

36 papers receiving 768 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Fumihiro Oha Japan 15 730 619 207 101 53 39 825
Byung-Joon Shin South Korea 12 645 0.9× 613 1.0× 284 1.4× 121 1.2× 70 1.3× 62 829
Joong Won Ha South Korea 12 702 1.0× 649 1.0× 213 1.0× 141 1.4× 34 0.6× 43 796
Koichiro Ide Japan 13 469 0.6× 288 0.5× 84 0.4× 54 0.5× 23 0.4× 80 574
Wolfram Käfer Germany 12 538 0.7× 256 0.4× 156 0.8× 66 0.7× 49 0.9× 32 621
Ki Soo Hwang United States 11 1.0k 1.4× 705 1.1× 82 0.4× 57 0.6× 41 0.8× 45 1.1k
J. Huber Switzerland 9 499 0.7× 383 0.6× 242 1.2× 93 0.9× 13 0.2× 22 651
Reginald Q. Knight United States 10 529 0.7× 490 0.8× 165 0.8× 68 0.7× 33 0.6× 22 600
Takashi Chikawa Japan 12 382 0.5× 359 0.6× 124 0.6× 49 0.5× 27 0.5× 38 475
Vit Kotheeranurak Thailand 17 694 1.0× 727 1.2× 244 1.2× 183 1.8× 10 0.2× 70 855
Takamitsu Haku Japan 10 565 0.8× 531 0.9× 219 1.1× 74 0.7× 28 0.5× 13 612

Countries citing papers authored by Fumihiro Oha

Since Specialization
Citations

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

Fields of papers citing papers by Fumihiro Oha

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Fumihiro Oha

This figure shows the co-authorship network connecting the top 25 collaborators of Fumihiro Oha. A scholar is included among the top collaborators of Fumihiro Oha 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 Fumihiro Oha. Fumihiro Oha 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.
Shimizu, Tomohiro, Yusuke Ohashi, Kenichi Kusunoki, et al.. (2024). Zinc improves Denosumab and eldecalcitol efficacy for bone mineral density in patients with hypozincemia. Journal of Bone and Mineral Metabolism. 42(2). 233–241.
2.
Tsujimoto, Takeru, Masahiro Kanayama, Fumihiro Oha, et al.. (2023). Characteristics of the Patients with Poor Clinical Outcomes After Symptomatic Postoperative Lumbar Epidural Hematoma. World Neurosurgery. 172. e364–e371. 3 indexed citations
3.
Hara, Hiroyuki, Masahiro Kanayama, Fumihiro Oha, et al.. (2023). Effect of pre-operative HbA1c and blood glucose level on the surgical site infection after lumbar instrumentation surgery. Journal of Orthopaedic Science. 29(5). 1168–1173. 4 indexed citations
4.
Kanayama, Masahiro, Fumihiro Oha, Takeru Tsujimoto, et al.. (2023). Posterior lumbar fusion surgery doesn’t change sexual activities in patients with lumbar degenerative disease: an observational study. BMC Musculoskeletal Disorders. 24(1). 724–724. 2 indexed citations
5.
Tanaka, Masaru, Masahiro Kanayama, Tomoyuki Hashimoto, et al.. (2023). Characteristics of older patients with postmenopausal osteoporosis who developed loss of muscle mass during the COVID-19 pandemic – a case–control study. BMC Musculoskeletal Disorders. 24(1). 626–626. 2 indexed citations
6.
Kanayama, Masahiro, Fumihiro Oha, Takeru Tsujimoto, et al.. (2022). Pre-existing adjacent level foraminal stenosis does not affect the outcome of a single level lumbar interbody fusion. Journal of Orthopaedic Science. 28(4). 719–723. 2 indexed citations
7.
Endo, Tsutomu, Yoshinao Koike, Hideaki Miyoshi, et al.. (2021). Close association between non-alcoholic fatty liver disease and ossification of the posterior longitudinal ligament of the spine. Scientific Reports. 11(1). 17412–17412. 11 indexed citations
8.
Iwata, Akira, Masahiro Kanayama, Fumihiro Oha, et al.. (2020). Is Bone Nonunion, Vertebral Deformity, or Spinopelvic Malalignment the Best Therapeutic Target for Amelioration of Low Back Pain After Osteoporotic Vertebral Fracture?. Spine. 45(13). E760–E767. 8 indexed citations
9.
Kanayama, Masahiro, Tomoyuki Hashimoto, Fumihiro Oha, et al.. (2018). Peri-operative complications of lumbar spine surgery in patients over eighty five years of age: a retrospective cohort study. International Orthopaedics. 42(5). 1083–1089. 13 indexed citations
10.
Iwata, Akira, Masahiro Kanayama, Fumihiro Oha, Tomoyuki Hashimoto, & Norimasa Iwasaki. (2016). Does spinopelvic alignment affect the union status in thoracolumbar osteoporotic vertebral compression fracture?. European Journal of Orthopaedic Surgery & Traumatology. 27(1). 87–92. 13 indexed citations
11.
Tanaka, Masaru, Fumihiro Oha, Masahiro Kanayama, et al.. (2015). Efficacy of ankle-brachial index as a preoperative screening in spine surgery. European Spine Journal. 25(3). 814–818. 1 indexed citations
12.
Kanayama, Masahiro, Fumihiro Oha, Akira Iwata, & Tomoyuki Hashimoto. (2015). Does balloon kyphoplasty improve the global spinal alignment in osteoporotic vertebral fracture?. International Orthopaedics. 39(6). 1137–1143. 27 indexed citations
13.
Kanayama, Masahiro, Fumihiro Oha, Daisuke Togawa, Keiichi Shigenobu, & Tomoyuki Hashimoto. (2010). Is Closed-suction Drainage Necessary for Single-level Lumbar Decompression?: Review of 560 Cases. Clinical Orthopaedics and Related Research. 468(10). 2690–2694. 82 indexed citations
14.
Kanayama, Masahiro, Takashi Ishida, Tomoyuki Hashimoto, et al.. (2010). Role of Major Spine Surgery Using Kaneda Anterior Instrumentation for Osteoporotic Vertebral Collapse. Journal of Spinal Disorders & Techniques. 23(1). 53–56. 59 indexed citations
15.
Togawa, Daisuke, Masahiro Kanayama, Keiichi Shigenobu, et al.. (2009). Glisson Traction for Cervical Radiculopathy Clinical Results of 77 Consecutive Patients. 20(3). 666–672.
16.
Kanayama, Masahiro, Tomoyuki Hashimoto, Keiichi Shigenobu, Daisuke Togawa, & Fumihiro Oha. (2007). A Minimum 10-Year Follow-up of Posterior Dynamic Stabilization Using Graf Artificial Ligament. Spine. 32(18). 1992–1996. 38 indexed citations
17.
Kanayama, Masahiro, Tomoyuki Hashimoto, Keiichi Shigenobu, Fumihiro Oha, & Daisuke Togawa. (2007). Effective prevention of surgical site infection using a Centers for Disease Control and Prevention guideline–based antimicrobial prophylaxis in lumbar spine surgery. Journal of Neurosurgery Spine. 6(4). 327–329. 76 indexed citations
18.
Kanayama, Masahiro, Tomoyuki Hashimoto, Keiichi Shigenobu, et al.. (2005). Non-Fusion Surgery for Degenerative Spondylolisthesis Using Artificial Ligament Stabilization. Spine. 30(5). 588–592. 38 indexed citations
19.
Kanayama, Masahiro, Tomoyuki Hashimoto, Keiichi Shigenobu, et al.. (2003). Intraoperative Biomechanical Assessment of Lumbar Spinal Instability: Validation of Radiographic Parameters Indicating Anterior Column Support in Lumbar Spinal Fusion. Spine. 28(20). 2368–2372. 52 indexed citations
20.
Kanayama, Masahiro, Tomoyuki Hashimoto, Keiichi Shigenobu, et al.. (2001). Adjacent-segment morbidity after Graf ligamentoplasty compared with posterolateral lumbar fusion. Journal of Neurosurgery Spine. 95(1). 5–10. 81 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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