Masaaki Mawatari

Synergistic antibacterial effect of silver-containing hydroxyapatite coating and vancomycin against haematogenous orthopaedic implant-associated infection in rat femur

Sakumo Kii, Hiroshi Miyamoto, Takema Nakashima, Akira Hashimoto et autres

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Impact of Postoperative Acetabular Wall Index on Patient-Reported Outcomes After Transposition Osteotomy of the Acetabulum in Patients With Hip Dysplasia

Shiori Tanaka, Masanori Fujii, Shunsuke Kawano, Masaya Ueno et autres

INTRODUCTION: This study aimed to determine the effect of preoperative variables and three-dimensional acetabular correction on patient-reported outcome measures after transposition osteotomy of the acetabulum (TOA), a spherical periacetabular osteotomy. METHODS: We retrospectively reviewed 442 patients (582 hips) with hip dysplasia who …

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Xenograft of bio-3D printed scaffold-free cartilage constructs derived from human iPSCs to regenerate articular cartilage in immunodeficient pigs

Toshihiro Nonaka, Anna Nakamura, Daiki Murata, Hiromu Yoshizato et autres

Arthroplasty is currently the only option for reconstruction of large articular cartilage defects, mainly due to osteoarthritis. However, reconstruction with artificial materials has several issues such as deterioration, foreign body reaction, and bacterial infection. This study established a new method for articular …

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Clinical outcomes following total hip arthroplasty for bony ankylosed hips: a propensity score-matched analysis

Sakumo Kii, Ryo Takamatsu, Motoki Sonohata, Masaya Ueno et autres

BACKGROUND: Total hip arthroplasty (THA) is one of the most effective treatments for hip arthritis. However, postoperative outcomes of THA in patients with bony ankylosed hips remain inconclusive. We aimed to examine the postoperative results of THAs for bony ankylosed hips using …

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Complications following bilateral simultaneous versus staged total knee arthroplasty in the Japanese population: a propensity-matched case-control study

Yosuke Matsumura, Masanori Fujii, Yuichi Yamaguchi, Satomi Nagamine et autres

Although bilateral simultaneous total knee arthroplasty (BSTKA) is an effective treatment for bilateral knee osteoarthritis, safety concerns and lack of precise patient selection criteria persist. This study aimed to determine the differences in perioperative parameters and complication rates between BSTKA and staged …

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Morel‐Lavallée Lesion: An Easily Missed Closed Debridement Injury in Blunt Trauma

Hidetaka Mochizuki, Hirohito Hirata, Tomohito Yoshihara, Takaomi Kobayashi et autres

Morel-Lavallée lesion (MLL) is a closed soft tissue injury following trauma that is often missed. If not treated appropriately, they can lead to infection and is difficult to treat. High-energy trauma with shear forces should be treated with MLL in mind.

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Deficient postoperative anterior wall index adversely affects joint survival after transposition osteotomy of the acetabulum in patients with hip dysplasia

Masanori Fujii, Shiori Tanaka, Shunsuke Kawano, Masaya Ueno et autres

Aims: This study aimed to determine clinical outcomes; relationships between postoperative anterior, lateral, and posterior acetabular coverage and joint survival; and prognostic factors for joint survival after transposition osteotomy of the acetabulum (TOA). Methods: Data from 616 patients (800 hips) with hip …

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Relationship Between the 25-Question Geriatric Locomotive Function Scale and Falls: A One-Year Longitudinal Observational Study of 1,173 Healthy Community-Dwelling Residents Aged 65 and Older

Takaomi Kobayashi, Tadatsugu Morimoto, Chisato Shumanoe, Rei Ono et autres

Introduction This study aimed to explore the relationship between the 25-question Geriatric Locomotive Function Scale (GLFS-25) score (i.e., total score and domain scores) and falls (i.e., history with or without falls and frequency of falls). Methodology We conducted a one-year longitudinal observational …

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Letter to the editor concerning “Abdominal aortic calcification is independently associated with lumbar endplate degeneration” by L. Schönnagel et al. (Eur Spine J [2023]; doi:10.1007/s00586-023-07871-6)

Wakana Nagata, Tadatsugu Morimoto, Hirohito Hirata, Tomohito Yoshihara et autres

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Clinical characteristics of individuals stratified by the number of answered items on the 25-question Geriatric Locomotive Function Scale.

Takaomi Kobayashi, Tadatsugu Morimoto, Chisato Shimanoe, Rei Ono et autres

The 25-question Geriatric Locomotive Function Scale (GLFS-25) is a tool to identify locomotive syndrome, however, this tool is associated with the problem of a low complete response rate. We conducted this cross-sectional study of 2,474 community-dwelling residents to investigate the clinical characteristics …

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Serum IL–27 as a potential biomarker for pain in late–stage hip osteoarthritis

Akira Hashimoto, Toshiharu Yasaka, Hiroki Yoshida, Yasunobu Miyake et autres

Cytokines play important roles not only in immune, but also in pain control systems. Since mice lacking interleukin (IL)–27 displayed pain hypersensitivities, we investigated the role of IL–27 in pain due to hip osteoarthritis in this clinical study. Twenty–one female patients with …

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A case of spinal metastasis with osteoblastic lesion: The risk of epidural extension and paralysis

Tasuku Ino, Yu Toda, Hirohito Hirata, Tomohito Yoshihara et autres

One patient with metastatic spinal tumors from colorectal cancer experienced malignant spinal cord compression (MSCC). Determining the extent of the lesion using magnetic resonance imaging is essential, even if the lesion is osteoblastic. Therefore, it is important to evaluate the risk of …

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