Search Results - "Masaoka, Toshinori"

Do polyethylene wear particles affect the development of pseudotumor in total hip arthroplasty? A minimum 15-year follow-up by Ishida, Tsunehito, Tateiwa, Toshiyuki, Takahashi, Yasuhito, Masaoka, Toshinori, Shishido, Takaaki, Yamamoto, Kengo

“…Adverse local tissue reactions have been problematic as an implant-related complication in total hip arthroplasty (THA). Despite the absence of significant…”
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Improved Resistance to Neck-Liner Impingement in Second-Generation Highly Crosslinked Polyethylene—The Role of Vitamin E and Crosslinks by Takahashi, Yasuhito, PhD, Tateiwa, Toshiyuki, MD, PhD, Pezzotti, Giuseppe, PhD, Shishido, Takaaki, MD, PhD, Masaoka, Toshinori, MD, PhD, Yamamoto, Kengo, MD, PhD

“…Abstract Background Radiation crosslinking of ultrahigh molecular weight polyethylene (UHMWPE) results in the reduced tensile strength and fracture toughness…”
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Unveiling the dynamics of intraoperative contamination in total hip arthroplasty: the discrepancy between particulate and microbial contamination in surgical site infection risk by Tateiwa, Toshiyuki, Masaoka, Toshinori, Takahashi, Yasuhito, Ishida, Tsunehito, Shishido, Takaaki, Yamamoto, Kengo

“…Surgical site infection (SSI) is a major problem following total hip arthroplasty (THA). This study investigated the impact of a standard intraoperative…”
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Bacterial Contamination in Total Joint Replacement: Should We Change into a New Set of Clean Scrub Suits Whenever Entering the Operating Room? by Tateiwa, Toshiyuki, Takahashi, Yasuhito, Ishida, Tsunehito, Masaoka, Toshinori, Shishido, Takaaki, Yamamoto, Kengo

“…The aims of this study are as follows: (1) to investigate the level and probability of bacterial contamination on scrub suits over time for medical personnel…”
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Risk factors for preoperative nasal carriage of methicillin-resistant bacteria in total hip and knee arthroplasty patients by Tateiwa, Toshiyuki, Ishida, Tsunehito, Takahashi, Yasuhito, Shinozaki, Tomohiro, Masaoka, Toshinori, Shishido, Takaaki, Nishida, Jun, Yamamoto, Kengo

“…The present study aimed to identify risk factors for preoperative nasal carriage of resistant bacteria - MRSA methicillin-resistant Staphylococcus (S.) aureus,…”
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Prostaglandin E2 induces dual-specificity phosphatase-1, thereby attenuating inflammatory genes expression in human osteoarthritic synovial fibroblasts by Maekawa, Asato, Sawaji, Yasunobu, Endo, Kenji, Kusakabe, Takuya, Konishi, Takamitsu, Tateiwa, Toshiyuki, Masaoka, Toshinori, Shishido, Takaaki, Yamamoto, Kengo

“…•PGE2 increased the expression of DUSP-1 in human synovial fibroblasts.•PGE2 reduced IL-1β-induced MAPKs phosphorylation.•The expression of MMPs and NGF was…”
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Clinical course of asymptomatic deep vein thrombosis after total knee arthroplasty in Japanese patients by Tateiwa, Toshiyuki, Ishida, Tsunehito, Masaoka, Toshinori, Shishido, Takaaki, Takahashi, Yasuhito, Onozuka, Atsuko, Nishida, Jun, Yamamoto, Kengo

“…Purpose: The purpose of the present study was to follow up Japanese patients with deep vein thrombosis (DVT) after total knee arthroplasty (TKA) and also to…”
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Adverse Tissue Reactions and Metal Ion Behavior After Small‐Head Metasul Hip Arthroplasty: A Long‐Term Follow‐Up Study by Ishida, Tsunehito, Tateiwa, Toshiyuki, Takahashi, Yasuhito, Nishikawa, Yohei, Shishido, Takaaki, Masaoka, Toshinori, Yamamoto, Kengo

“…Objective To investigate the long‐term survivorship, incidence of adverse reactions to metal debris (ARMD), and metal ion behavior in patients who underwent…”
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Impact of surgical clothing and footwear on operating room contamination during standstill and intraoperative stepping motion by Tateiwa, Toshiyuki, Masaoka, Toshinori, Ishida, Tsunehito, Shishido, Takaaki, Takahashi, Yasuhito, Yamamoto, Kengo

“…Background: In view of preventing surgical site infection (SSI) in the orthopedic operating room (OR), evidence concerning types of footwear and clothing is…”
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Size and thickness effect on creep behavior in conventional and vitamin E-diffused highly crosslinked polyethylene for total hip arthroplasty by Takahashi, Yasuhito, Tateiwa, Toshiyuki, Shishido, Takaaki, Masaoka, Toshinori, Kubo, Kosuke, Yamamoto, Kengo

“…Since the early 2000s, the use of large femoral heads is becoming increasingly popular in total hip arthroplasty (THA), which provides an improved range of…”
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Hip disorders and spinopelvic alignment: a current literature review by Tateiwa, Toshiyuki, Ishida, Tsunehito, Kusakabe, Takuya, Masaoka, Toshinori, Endo, Kenji, Shishido, Takaaki, Takahashi, Yasuhito, Yamamoto, Kengo

“…Purpose: The importance of considering the influence of spinal alignment on the pathology of the hip joint has been widely accepted. The primary objective of…”
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Does intraoperative mechanical prophylaxis prevent venous thromboembolism in total knee arthroplasty? - effectiveness of passive-assisted ankle motion in surgical/non-surgical side by Tateiwa, Toshiyuki, Ishida, Tsunehito, Masaoka, Toshinori, Shishido, Takaaki, Takahashi, Yasuhito, Nishida, Jun, Yamamoto, Kengo

“…Gradual compression stocking (GCS) and intermittent pneumatic compression device (IPCD) are used for intraoperative mechanical prophylaxis against venous…”
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Mechanisms of plastic deformation in highly cross-linked UHMWPE for total hip components--the molecular physics viewpoint by Takahashi, Yasuhito, Shishido, Takaaki, Yamamoto, Kengo, Masaoka, Toshinori, Kubo, Kosuke, Tateiwa, Toshiyuki, Pezzotti, Giuseppe

“…Plastic deformation is an unavoidable event in biomedical polymeric implants for load-bearing application during long-term in-vivo service life, which involves…”
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The aging micromechanisms of alumina matrix composite (AMC) used in total hip arthroplasty by Horie, Shinji, Takahashi, Yasuhito, Shishido, Takaaki, Masaoka, Toshinori, Tateiwa, Toshiyuki, Yamamoto, Kengo

“…The aim of the present study is to simulate and better understand the long-term interplay between alumina matrix composite (AMC) femoral head and aqueous…”
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Radiographic Determination of Hip Rotation Center and Femoral Offset in Japanese Adults: A Preliminary Investigation toward the Preoperative Implications in Total Hip Arthroplasty by Yamamoto, Kengo, Aoki, Masaya, Kubo, Kosuke, Tateiwa, Toshiyuki, Masaoka, Toshinori, Takahashi, Yasuhito, Shishido, Takaaki, Takamatsu, Taichiro, Endo, Kenji

“…The values of hip rotation center (HRC) and femoral offset (FO) evaluated according to Caucasian anatomical landmarks have been regarded as a useful reference…”
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Strain-induced microstructural rearrangement in ultra-high molecular weight polyethylene for hip joints: A comparison between conventional and vitamin E-infused highly-crosslinked liners by Takahashi, Yasuhito, Yamamoto, Kengo, Shishido, Takaaki, Masaoka, Toshinori, Tateiwa, Toshiyuki, Puppulin, Leonardo, Pezzotti, Giuseppe

“…Infusion of vitamin E (α-tocopherol) in highly crosslinked ultra-high molecular weight polyethylene (UHMWPE) liners has been conceived to achieve superior…”
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IL-17A–Mediated Immune-Inflammatory Periarticular Mass and Osteolysis From Impingement in Ceramic-On-Ceramic Total Hip Arthroplasty by Ishida, Tsunehito, Tateiwa, Toshiyuki, Takahashi, Yasuhito, Takahashi, Reisuke H., Sano, Keiji, Shishido, Takaaki, Masaoka, Toshinori, Yamamoto, Kengo

“…We present a rare case of symptomatic adverse local tissue reaction in a 54-year-old female patient who had undergone total hip arthroplasty with…”
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Highly Cross-Linked Polyethylene in Total Hip and Knee Replacement: Spatial Distribution of Molecular Orientation and Shape Recovery Behavior by Yamamoto, Kengo, Tateiwa, Toshiyuki, Shishido, Takaaki, Pezzotti, Giuseppe, Masaoka, Toshinori, Takahashi, Yasuhito, Kubo, Kosuke

“…The present study investigated effects of processing procedures on morphology of highly cross-linked and re-melted UHMWPE (XLPE) in total hip and knee…”
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Does modern space suit reduce intraoperative contamination in total joint replacement? An experimental study by Nakajima, Daisuke, Tateiwa, Toshiyuki, Masaoka, Toshinori, Takahashi, Yasuhito, Shishido, Takaaki, Yamamoto, Kengo

“…Background The purpose of this study was to evaluate a potential risk of intraoperative contamination associated with clothing systems and surgeon’s motion in…”
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Do Polyethylene Supra-Macroparticles Lead to Pseudotumor Formation in Metal-on-Polyethylene Total Hip Arthroplasty? by Ishida, Tsunehito, Tateiwa, Toshiyuki, Takahashi, Yasuhito, Nishikawa, Yohei, Shishido, Takaaki, Masaoka, Toshinori, Sano, Keiji, Yamamoto, Kengo

“…We describe 2 cases of pseudotumors induced by an unusual size of polyethylene wear particle after metal-on-polyethylene total hip arthroplasty (MoP THA). The…”
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