Association of dorsal malunion in distal radius fractures with wrist osteoarthritis: Alterations of bone density and stress-distribution patterns in relation to deformation angles

Kazui, Arisa; Miyamura, Satoshi; Shiode, Ryoya; Yamamoto, Natsuki; Miyake, Tasuku; Iwahashi, Toru; Tanaka, Hiroyuki; Okada, Seiji; Murase, Tsuyoshi; Oka, Kunihiro

doi:https://doi.org/10.1016/j.joca.2024.08.006

Association of dorsal malunion in distal radius fractures with wrist osteoarthritis: Alterations of bone density and stress-distribution patterns in relation to deformation angles

Kazui, Arisa; Miyamura, Satoshi; Shiode, Ryoya et al.

Osteoarthritis and Cartilage, 2024, 33(1), 146-154

アクセス数:1,260件（2025-07-06 12:23 集計）

固定URL: https://hdl.handle.net/11094/98329

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タイトル	Association of dorsal malunion in distal radius fractures with wrist osteoarthritis: Alterations of bone density and stress-distribution patterns in relation to deformation angles
著者	researchmap permalink arisakazui arisakazui 著者名 Kazui, Arisa
	NRID 1000010897599 1000010897599 ORCID 0000-0002-2245-5554 0000-0002-2245-5554 researchmap permalink SatoshiMiyamura SatoshiMiyamura Scopus Author ID 57193504364 57193504364 著者名 Miyamura, Satoshi
	NRID 1000030964449 1000030964449 researchmap permalink RyoyaShiode RyoyaShiode ORCID 0000-0002-3148-0399 0000-0002-3148-0399 著者名 Shiode, Ryoya
	著者名 Yamamoto, Natsuki
	著者名 Miyake, Tasuku
	NRID 1000040852108 1000040852108 researchmap permalink tiwa tiwa 著者名 Iwahashi, Toru
	NRID 1000000432542 1000000432542 researchmap permalink tanahiro-osk tanahiro-osk Scopus Author ID 55628564591 55628564591 著者名 Tanaka, Hiroyuki
	NRID 1000030448435 1000030448435 ORCID 0000-0002-5107-8209 0000-0002-5107-8209 researchmap permalink okadaseiji okadaseiji Scopus Author ID 35079139100 35079139100 著者名 Okada, Seiji
	NRID 1000050335361 1000050335361 ORCID 0000-0001-5628-5891 0000-0001-5628-5891 researchmap permalink tmurase-osk tmurase-osk Scopus Author ID 7202678305 7202678305 著者名 Murase, Tsuyoshi
	NRID 1000050724085 1000050724085 researchmap permalink kunihiro kunihiro Scopus Author ID 8529412800 8529412800 著者名 Oka, Kunihiro
キーワード等	Bone density
	Distal radius fracture
	Finite element analysis
	Malunion
	Osteoarthritis
	Stress distribution
内容	Kazui A., Miyamura S., Shiode R., et al. Association of dorsal malunion in distal radius fractures with wrist osteoarthritis: Alterations of bone density and stress-distribution patterns in relation to deformation angles. Osteoarthritis and Cartilage, (2024); https://doi.org/10.1016/j.joca.2024.08.006.
抄録	Objective: Distal radius fractures (DRFs) with dorsal malunion increase the risk of osteoarthritis (OA), although the cause of post-DRF OA is yet to be elucidated. To clarify the abnormal effects of a post-DRF dorsal radius deformity, we evaluated the bone density (BD) and stress-distribution patterns of the articular surface in dorsally malunited DRFs. Design: In 36 cases of dorsally malunited DRFs following extra-articular fractures, we generated three-dimensional computerized models of the malunited distal radius from computed tomography data and extracted the subchondral bones of the radiocarpal joint (RCJ) and distal radioulnar joint (DRUJ). Both BD and stress distribution in the subchondral bones were quantitatively evaluated by comparing the affected and normal sides. Correlations of alterations in high-BD distribution and deformation angles were analyzed. Results: The center of high-BD distribution from the center of the RCJ in the volar(-)-dorsal(+) direction was dorsal (0.56 ± 0.72 mm) on the affected side compared with the normal side (−0.15 ± 0.63 mm) [95% CI: 0.43, 1.00, P < 0.0001]. The maximum stress distribution was also dorsal on the affected side (2.34 ± 3.52 mm) compared with the normal side (−2.49 ± 1.62 mm) [95% CI: 0.89, 1.79, P < 0.0001]. The alterations in BD and stress distribution correlated with the dorsiflexion and radial deviation angles. In the DRUJ, there was no significant difference in BD between the affected and normal sides. Conclusions: In dorsally malunited DRFs, the alignment change of the RCJ resulted in high BD-concentration areas and stress distribution on the dorsal side of the radius, which may constitute a precursor for OA.
出版者	Elsevier Ltd
収録物名	Osteoarthritis and Cartilage
巻(号)	33(1)
ページ	146-154
刊行年月	2024-08-23
言語	英語
ハンドルURL	https://hdl.handle.net/11094/98329
PISSN	10634584
eISSN	15229653
関連情報 (isIdenticalTo)	DOI (出版社版) https://doi.org/10.1016/j.joca.2024.08.006
アクセス権	open access
権利情報	This article is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
出版タイプ	Version of Record
カテゴリ	学術雑誌論文 Journal Article

資源タイプ	学術雑誌論文
ローカル資源タイプ	学術雑誌論文
DCTERMS.bibliographicCitation	Osteoarthritis and Cartilage. 2024, 33(1), p. 146-154
DC.title	Association of dorsal malunion in distal radius fractures with wrist osteoarthritis: Alterations of bone density and stress-distribution patterns in relation to deformation angles
DC.creator	Kazui, Arisa
	Miyamura, Satoshi
	Shiode, Ryoya
	Yamamoto, Natsuki
	Miyake, Tasuku
	Iwahashi, Toru
	Tanaka, Hiroyuki
	Okada, Seiji
	Murase, Tsuyoshi
	Oka, Kunihiro
DC.publisher	Elsevier Ltd
DC.language' scheme='DCTERMS.RFC1766	英語
DCTERMS.issued' scheme='DCTERMS.W3CDTF	2024-08-23
DC.identifier	https://doi.org/10.1016/j.joca.2024.08.006
DC.subject	Bone density
	Distal radius fracture
	Finite element analysis
	Malunion
	Osteoarthritis
	Stress distribution
DC.description	Kazui A., Miyamura S., Shiode R., et al. Association of dorsal malunion in distal radius fractures with wrist osteoarthritis: Alterations of bone density and stress-distribution patterns in relation to deformation angles. Osteoarthritis and Cartilage, (2024); https://doi.org/10.1016/j.joca.2024.08.006.
DCTERMS.abstract	Objective: Distal radius fractures (DRFs) with dorsal malunion increase the risk of osteoarthritis (OA), although the cause of post-DRF OA is yet to be elucidated. To clarify the abnormal effects of a post-DRF dorsal radius deformity, we evaluated the bone density (BD) and stress-distribution patterns of the articular surface in dorsally malunited DRFs. Design: In 36 cases of dorsally malunited DRFs following extra-articular fractures, we generated three-dimensional computerized models of the malunited distal radius from computed tomography data and extracted the subchondral bones of the radiocarpal joint (RCJ) and distal radioulnar joint (DRUJ). Both BD and stress distribution in the subchondral bones were quantitatively evaluated by comparing the affected and normal sides. Correlations of alterations in high-BD distribution and deformation angles were analyzed. Results: The center of high-BD distribution from the center of the RCJ in the volar(-)-dorsal(+) direction was dorsal (0.56 ± 0.72 mm) on the affected side compared with the normal side (−0.15 ± 0.63 mm) [95% CI: 0.43, 1.00, P < 0.0001]. The maximum stress distribution was also dorsal on the affected side (2.34 ± 3.52 mm) compared with the normal side (−2.49 ± 1.62 mm) [95% CI: 0.89, 1.79, P < 0.0001]. The alterations in BD and stress distribution correlated with the dorsiflexion and radial deviation angles. In the DRUJ, there was no significant difference in BD between the affected and normal sides. Conclusions: In dorsally malunited DRFs, the alignment change of the RCJ resulted in high BD-concentration areas and stress distribution on the dorsal side of the radius, which may constitute a precursor for OA.
DC.rights	This article is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
DC.format	98329
citation_title	Association of dorsal malunion in distal radius fractures with wrist osteoarthritis: Alterations of bone density and stress-distribution patterns in relation to deformation angles
citation_author	Kazui, Arisa
	Miyamura, Satoshi
	Shiode, Ryoya
	Yamamoto, Natsuki
	Miyake, Tasuku
	Iwahashi, Toru
	Tanaka, Hiroyuki
	Okada, Seiji
	Murase, Tsuyoshi
	Oka, Kunihiro
citation_publisher	Elsevier Ltd
citation_language	英語
citation_date	2024-08-23
citation_journal_title	Osteoarthritis and Cartilage
citation_volume	33
citation_issue	1
citation_firstpage	146
citation_lastpage	154
citation_doi	https://doi.org/10.1016/j.joca.2024.08.006
citation_public_url	https://hdl.handle.net/11094/98329

Association of dorsal malunion in distal radius fractures with wrist osteoarthritis: Alterations of bone density and stress-distribution patterns in relation to deformation angles

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