Ryuichi Sasaoka

770 total citations
26 papers, 477 citations indexed

About

Ryuichi Sasaoka is a scholar working on Surgery, Pathology and Forensic Medicine and Oncology. According to data from OpenAlex, Ryuichi Sasaoka has authored 26 papers receiving a total of 477 indexed citations (citations by other indexed papers that have themselves been cited), including 24 papers in Surgery, 14 papers in Pathology and Forensic Medicine and 7 papers in Oncology. Recurrent topics in Ryuichi Sasaoka's work include Spine and Intervertebral Disc Pathology (13 papers), Spinal Fractures and Fixation Techniques (13 papers) and Pelvic and Acetabular Injuries (7 papers). Ryuichi Sasaoka is often cited by papers focused on Spine and Intervertebral Disc Pathology (13 papers), Spinal Fractures and Fixation Techniques (13 papers) and Pelvic and Acetabular Injuries (7 papers). Ryuichi Sasaoka collaborates with scholars based in Japan. Ryuichi Sasaoka's co-authors include Hiroaki Nakamura, Hiromitsu Toyoda, Hidetomi Terai, Masatoshi Hoshino, Kunio Takaoka, Sho Dohzono, Tadao Tsujio, Shinji Takahashi, Hiroyuki Yasuda and Hiroshi Kono and has published in prestigious journals such as Scientific Reports, Biochemical and Biophysical Research Communications and Bone.

In The Last Decade

Ryuichi Sasaoka

26 papers receiving 463 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Ryuichi Sasaoka Japan	14	361	262	87	66	62	26	477
Hee Kit Wong Singapore	11	372 1.0×	237 0.9×	26 0.3×	81 1.2×	58 0.9×	25	532
Munehisa Koizumi Japan	13	319 0.9×	317 1.2×	44 0.5×	66 1.0×	142 2.3×	34	535
Kamil Çağrı Köse Türkiye	14	422 1.2×	181 0.7×	59 0.7×	20 0.3×	24 0.4×	44	554
Daigo Morita Japan	17	715 2.0×	476 1.8×	103 1.2×	29 0.4×	36 0.6×	46	798
Dylan N. Greif United States	10	352 1.0×	125 0.5×	102 1.2×	82 1.2×	37 0.6×	42	507
Kenji Takahara Japan	14	339 0.9×	216 0.8×	103 1.2×	28 0.4×	59 1.0×	26	439
Naoko Onizuka United States	11	141 0.4×	85 0.3×	124 1.4×	23 0.3×	55 0.9×	25	438
A. G. Hadjipavlou Greece	9	188 0.5×	327 1.2×	86 1.0×	68 1.0×	254 4.1×	14	496
Hyoung‐Yeon Seo South Korea	10	508 1.4×	116 0.4×	165 1.9×	80 1.2×	48 0.8×	19	626

Countries citing papers authored by Ryuichi Sasaoka

Since Specialization

Citations

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

Fields of papers citing papers by Ryuichi Sasaoka

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Ryuichi Sasaoka

This figure shows the co-authorship network connecting the top 25 collaborators of Ryuichi Sasaoka. A scholar is included among the top collaborators of Ryuichi Sasaoka 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 Ryuichi Sasaoka. Ryuichi Sasaoka is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Dohzono, Sho, et al.. (2025). Computed tomography Hounsfield unit values as a treatment response indicator for spinal metastatic lesions in patients with non-small-cell lung cancer: a retrospective study in Japan. Asian Spine Journal. 19(1). 46–53. 2 indexed citations

Dohzono, Sho, Ryuichi Sasaoka, Kiyohito Takamatsu, & Hiroaki Nakamura. (2022). Association between Age and Trunk Muscle Area and Density in Patients with Spinal Metastases. Asian Spine Journal. 16(5). 677–683. 3 indexed citations

Takahashi, Shinji, Masatoshi Hoshino, Kazushi Takayama, et al.. (2021). Impact of paravertebral muscle in thoracolumbar and lower lumbar regions on outcomes following osteoporotic vertebral fracture: a multicenter cohort study. Archives of Osteoporosis. 16(1). 2–2. 19 indexed citations

Toyoda, Hiromitsu, Masatoshi Hoshino, Shinji Takahashi, et al.. (2021). Relationship between number of radiological risk factors for delayed union after osteoporotic vertebral fracture and clinical outcomes. Archives of Osteoporosis. 16(1). 20–20. 2 indexed citations

Takahashi, Shinji, Masatoshi Hoshino, Kazushi Takayama, et al.. (2020). The natural course of the paravertebral muscles after the onset of osteoporotic vertebral fracture. Osteoporosis International. 31(6). 1089–1095. 19 indexed citations

Hidaka, Noriaki, et al.. (2019). Intraoperative computed tomography with an integrated navigation system versus freehand technique under fluoroscopy in the treatment of intra-articular distal radius fractures. Journal of Plastic Surgery and Hand Surgery. 53(5). 255–259. 8 indexed citations

Takahashi, Shinji, Masatoshi Hoshino, Kazushi Takayama, et al.. (2019). Association between MRI findings and back pain after osteoporotic vertebral fractures: a multicenter prospective cohort study. The Spine Journal. 19(7). 1186–1193. 15 indexed citations

Dohzono, Sho, Ryuichi Sasaoka, Kiyohito Takamatsu, Masatoshi Hoshino, & Hiroaki Nakamura. (2019). Low paravertebral muscle mass in patients with bone metastases from lung cancer is associated with poor prognosis. Supportive Care in Cancer. 28(1). 389–394. 13 indexed citations

Takahashi, Shinji, Masatoshi Hoshino, Hiroyuki Yasuda, et al.. (2019). Characteristic radiological findings for revision surgery after balloon kyphoplasty. Scientific Reports. 9(1). 18513–18513. 16 indexed citations

10.

Dohzono, Sho, Ryuichi Sasaoka, Kiyohito Takamatsu, Masatoshi Hoshino, & Hiroaki Nakamura. (2019). Prognostic value of low psoas muscle mass in patients with cervical spine metastasis. Journal of Clinical Neuroscience. 66. 56–60. 7 indexed citations

11.

Takahashi, Shinji, Masatoshi Hoshino, Hiroyuki Yasuda, et al.. (2019). Development of a scoring system for predicting adjacent vertebral fracture after balloon kyphoplasty. The Spine Journal. 19(7). 1194–1201. 47 indexed citations

12.

Rahmani, Amir M., Shinji Takahashi, Masatoshi Hoshino, et al.. (2018). The degeneration of adjacent intervertebral discs negatively influence union rate of osteoporotic vertebral fracture: A multicenter cohort study. Journal of Orthopaedic Science. 23(4). 627–634. 7 indexed citations

13.

Dohzono, Sho, Ryuichi Sasaoka, Kiyohito Takamatsu, Masatoshi Hoshino, & Hiroaki Nakamura. (2018). Prognostic value of paravertebral muscle density in patients with spinal metastases from gastrointestinal cancer. Supportive Care in Cancer. 27(4). 1207–1213. 23 indexed citations

14.

Dohzono, Sho, Ryuichi Sasaoka, Kiyohito Takamatsu, & Hiroaki Nakamura. (2017). Overall survival and prognostic factors in patients with spinal metastases from lung cancer treated with and without epidermal growth factor receptor tyrosine kinase inhibitors. International Journal of Clinical Oncology. 22(4). 698–705. 12 indexed citations

15.

Takahashi, Shinji, Masatoshi Hoshino, Hidetomi Terai, et al.. (2017). Differences in short-term clinical and radiological outcomes depending on timing of balloon kyphoplasty for painful osteoporotic vertebral fracture. Journal of Orthopaedic Science. 23(1). 51–56. 21 indexed citations

16.

Toyoda, Hiromitsu, Shinji Takahashi, Masatoshi Hoshino, et al.. (2017). Characterizing the course of back pain after osteoporotic vertebral fracture: a hierarchical cluster analysis of a prospective cohort study. Archives of Osteoporosis. 12(1). 82–82. 12 indexed citations

17.

Takahashi, Shinji, Masatoshi Hoshino, Kazushi Takayama, et al.. (2016). Predicting delayed union in osteoporotic vertebral fractures with consecutive magnetic resonance imaging in the acute phase: a multicenter cohort study. Osteoporosis International. 27(12). 3567–3575. 45 indexed citations

18.

Sasaoka, Ryuichi, et al.. (2005). Objective assessment of reduced invasiveness in MED. European Spine Journal. 15(5). 577–582. 73 indexed citations

19.

Sasaoka, Ryuichi, Hidetomi Terai, Hiromitsu Toyoda, et al.. (2004). A prostanoid receptor EP4 agonist enhances ectopic bone formation induced by recombinant human bone morphogenetic protein-2. Biochemical and Biophysical Research Communications. 318(3). 704–709. 28 indexed citations

20.

Sasaoka, Ryuichi, Hiroaki Nakamura, & Yoshiki Yamano. (2003). Idiopathic Spinal Cord Herniation in the Thoracic Spine as a Cause of Intractable Leg Pain: Case Report and Review of the Literature. Journal of Spinal Disorders & Techniques. 16(3). 288–294. 27 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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