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  1. Article ; Online: Immune-mediated Necrotizing Myopathy in a Patient with Microscopic Polyangiitis: A Case Report.

    Umemoto, Daichi / Kanzawa, Yohei / Nakamura, Tomoko / Nishino, Ichizo / Mizuki, Shimpei / Ohnishi, Jun / Nakajima, Takahiro / Ishimaru, Naoto / Kinami, Saori

    Internal medicine (Tokyo, Japan)

    2023  

    Abstract: We herein report a case of immune-mediated necrotizing myopathy (IMNM) in a patient with microscopic polyangiitis (MPA). A 77-year-old Japanese woman presented with a 2-day history of proximal muscle weakness and myalgia, with elevated serum creatinine ... ...

    Abstract We herein report a case of immune-mediated necrotizing myopathy (IMNM) in a patient with microscopic polyangiitis (MPA). A 77-year-old Japanese woman presented with a 2-day history of proximal muscle weakness and myalgia, with elevated serum creatinine kinase (CK) levels. Findings of a muscle biopsy were compatible with IMNM; however, anti-SRP and anti-HMGCR antibodies were negative. She also had peripheral neuropathy with elevated serum MPO-ANCA titers, leading to a diagnosis of MPA. IMNM can be a pathological result of MPA muscle involvement.
    Language English
    Publishing date 2023-10-06
    Publishing country Japan
    Document type Journal Article
    ZDB-ID 32371-8
    ISSN 1349-7235 ; 0021-5120 ; 0918-2918
    ISSN (online) 1349-7235
    ISSN 0021-5120 ; 0918-2918
    DOI 10.2169/internalmedicine.2583-23
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article: Joint Space Width, but not Osteophyte Thickness, is a Reliable Indicator of Degeneration of Lateral Knee Joint Cartilage.

    Matsumoto, Kazu / Ishimaru, Daichi / Ogawa, Hiroyasu / Akiyama, Haruhiko

    Acta orthopaedica Belgica

    2020  Volume 85, Issue 4, Page(s) 494–501

    Abstract: In this histologically controlled in vitro study, we evaluated the validity of plain radiography for the assessment of lateral knee joint cartilage degeneration (25 specimens). We examined the correlation between histological grade and radiography ... ...

    Abstract In this histologically controlled in vitro study, we evaluated the validity of plain radiography for the assessment of lateral knee joint cartilage degeneration (25 specimens). We examined the correlation between histological grade and radiography findings along with patient demographics. Our study indicated that the Mankin score had a significant inverse correlation with middle joint space width (JSW

    r=-0.19,P=0.02), but not with inner and outer JSW (inner : r=-0.11,P=0.10, outer : r=-0.14,P=0.06) under a non-weight bearing condition. The Mankin score had a significant inverse correlation with middle and outer JSW (middle : r=-0.17,P=0.04, outer : r=-0.14,P=0.04), but not with inner JSW (inner : r=-0.15,P=0.06) under valgus stress. There was no significant correlation between the Mankin score and osteophyte thickness (r=0.004,P=0.76). We also examined the correlation with patient demographics. We found that only the preoperative femorotibial angle had a significant inverse correlation with the Mankin score. These results indicate that JSW, but not osteophyte thickness, is reliable for evaluating lateral femoral cartilage degeneration.
    MeSH term(s) Aged ; Aged, 80 and over ; Arthroplasty, Replacement, Knee ; Cartilage, Articular/diagnostic imaging ; Cartilage, Articular/physiopathology ; Female ; Humans ; Male ; Middle Aged ; Osteoarthritis, Knee/diagnostic imaging ; Osteoarthritis, Knee/physiopathology ; Osteophyte/diagnostic imaging ; Osteophyte/physiopathology ; Prospective Studies ; Radiography
    Language English
    Publishing date 2020-05-06
    Publishing country Belgium
    Document type Journal Article
    ZDB-ID 210367-9
    ISSN 0001-6462 ; 1784-407X
    ISSN 0001-6462 ; 1784-407X
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article: A Case of an Insufficiency Fracture of the Medial Proximal Tibia Secondary to Osteomalacia Associated with Long-Term Saccharated Ferric Oxide Administration.

    Ishimaru, Daichi / Sumi, Hiroshi

    Case reports in orthopedics

    2017  Volume 2017, Page(s) 1675654

    Abstract: This article presents a case of insufficiency fracture of medial proximal tibia caused by long-term administration of saccharated ferric oxide (SFO) in a 77-year-old female. In this case, 2-year administration of SFO for iron deficit anemia induced ... ...

    Abstract This article presents a case of insufficiency fracture of medial proximal tibia caused by long-term administration of saccharated ferric oxide (SFO) in a 77-year-old female. In this case, 2-year administration of SFO for iron deficit anemia induced hypophosphatemic osteomalacia and finally resulted in an insufficiency fracture of medial proximal tibia. Hypophosphatemia and pain due to the insufficiency fracture were recovered promptly by withdrawing SFO administration and rest. This case represented varus deformity of the knee associated with osteoarthritis, which may also cause the insufficiency fracture of medial proximal tibia in addition to osteomalacia due to long-term administration of SFO. Long-term SFO administration should be avoided because of a definitive risk of osteomalacia and fragile fracture.
    Language English
    Publishing date 2017-07-04
    Publishing country United States
    Document type Case Reports
    ZDB-ID 2684648-2
    ISSN 2090-6757 ; 2090-6749
    ISSN (online) 2090-6757
    ISSN 2090-6749
    DOI 10.1155/2017/1675654
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Glucose emission spectra through mid-infrared passive spectroscopic imaging of the wrist for non-invasive glucose sensing.

    Kitazaki, Tomoya / Morimoto, Yusuke / Yamashita, So / Anabuki, Daichi / Tahara, Shiori / Nishiyama, Akira / Wada, Kenji / Ishimaru, Ichiro

    Scientific reports

    2022  Volume 12, Issue 1, Page(s) 20558

    Abstract: Non-invasive blood glucose sensing can be achieved using mid-infrared spectroscopy, although no practical device based on this method has yet been developed. Here, we propose mid-infrared passive spectroscopic imaging for glucose measurements from a ... ...

    Abstract Non-invasive blood glucose sensing can be achieved using mid-infrared spectroscopy, although no practical device based on this method has yet been developed. Here, we propose mid-infrared passive spectroscopic imaging for glucose measurements from a distance. Spectroscopic imaging of thermal radiation from the human body enabled, for the first time in the world, the detection of glucose-induced luminescence from a distance. In addition, glucose emission spectra of the wrist acquired at regular intervals up to 60 min showed that there was a strong correlation between the glucose emission intensity and blood glucose level measured using an invasive sensor. Thus, the new technology proposed here is expected to be applied to real-time monitoring of diabetic patients to detect hypoglycemic attacks during sleep and to detect hyperglycemia in a population. Moreover, this technology could lead to innovations that would make it possible to remotely measure a variety of substances.
    MeSH term(s) Humans ; Wrist ; Glucose ; Blood Glucose ; Wrist Joint ; Spectrophotometry, Infrared
    Chemical Substances Glucose (IY9XDZ35W2) ; Blood Glucose
    Language English
    Publishing date 2022-11-29
    Publishing country England
    Document type Journal Article
    ZDB-ID 2615211-3
    ISSN 2045-2322 ; 2045-2322
    ISSN (online) 2045-2322
    ISSN 2045-2322
    DOI 10.1038/s41598-022-25161-x
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Modified Extension Block Technique for Bony Mallet Injury of the Hallux.

    Kawashima, Kenji / Shinozaki, Masato / Tsugita, Masanori / Ishimaru, Daichi / Akiyama, Haruhiko

    The Journal of foot and ankle surgery : official publication of the American College of Foot and Ankle Surgeons

    2019  Volume 58, Issue 3, Page(s) 596–598

    Abstract: Bony mallet injury of the hallux is uncommon. In the few reports of this injury, authors have described surgical treatments such as closed reduction with percutaneous pinning and open surgical fixation with Kirschner wires or a suture anchor. However, ... ...

    Abstract Bony mallet injury of the hallux is uncommon. In the few reports of this injury, authors have described surgical treatments such as closed reduction with percutaneous pinning and open surgical fixation with Kirschner wires or a suture anchor. However, the appropriate surgical management for this injury remains controversial. In this article, we describe a case of bony mallet injury of the hallux repaired with the modified extension block techniqueusing 3 Kirschner wires. This method is an effective and simple treatment to allow anatomic reduction of the displaced articular fracture fragment without incision, residual hardware, or the complications associated with open surgical treatment.
    MeSH term(s) Adult ; Bone Wires ; Fracture Fixation, Internal/methods ; Fractures, Avulsion/diagnostic imaging ; Fractures, Avulsion/surgery ; Hallux/diagnostic imaging ; Hallux/injuries ; Hallux/surgery ; Humans ; Imaging, Three-Dimensional ; Male ; Toe Phalanges/diagnostic imaging ; Toe Phalanges/injuries ; Toe Phalanges/surgery ; Tomography, X-Ray Computed
    Language English
    Publishing date 2019-02-08
    Publishing country United States
    Document type Case Reports ; Journal Article
    ZDB-ID 1146972-9
    ISSN 1542-2224 ; 1067-2516
    ISSN (online) 1542-2224
    ISSN 1067-2516
    DOI 10.1053/j.jfas.2018.09.018
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Correlation between mutated genes and forearm deformity in patients with multiple osteochondroma.

    Matsumoto, Kazu / Ishimaru, Daichi / Ogawa, Hiroyasu / Komura, Shingo / Shimizu, Katsuji / Akiyama, Haruhiko

    Journal of orthopaedic science : official journal of the Japanese Orthopaedic Association

    2020  Volume 26, Issue 3, Page(s) 483–486

    Abstract: Backgrounds: Exostosin-1 (EXT1) and exostosin-2 (EXT2) cause multiple osteochondromas (MO). In this study, we investigated the correlation between forearm deformity and mutant EXTs in Japanese families with MO.: Methods: We evaluated 112 patients in ... ...

    Abstract Backgrounds: Exostosin-1 (EXT1) and exostosin-2 (EXT2) cause multiple osteochondromas (MO). In this study, we investigated the correlation between forearm deformity and mutant EXTs in Japanese families with MO.
    Methods: We evaluated 112 patients in 71 families with MO. Genomic DNA was isolated from peripheral blood leucocytes. Of these, 28 patients were selected and underwent radiography for their forearms since they had gross forearm deformities. We measured the radial articular angle (RAA), ulna variance (UV), carpal slip (CS), and percentage of radial bowing (%RB) to compare between patients with mutant EXT1 or EXT2 and those with missense or other mutations using Student's t-test.
    Results: Twenty-two (78.6%) and 6 (11.4%) out of 28 patients had mutations in EXT1 and EXT2, respectively. Nine (32.1%) and 19 (67.9%) of the 28 patients had missense and other mutations, respectively. The mean age of patients with EXT1 and EXT2 were 25.9 ± 20.3 and 33.5 ± 25.4 years, respectively and those with missense mutation and other mutations were 28.7 ± 27.0 and 24.6 ± 17.0 years, respectively. There were no significant differences in RAA, UV, and RB between patients harbouring mutant EXT1 or EXT2 (RAA, 40.1 ± 8.7 and 31.5 ± 13.9°; UV, -2.7 ± 5.7 and -3.1 ± 3.7 mm; %RB, 8.6 ± 1.5 and 8.3 ± 2.0%). CS was significantly greater in patients with mutant EXT1 than that in those with mutant EXT2 (EXT1, 44.1 ± 16.8%; EXT2, 18.6 ± 14.0%). There were no significant differences in RAA, UV, CS and %RB between patients with missense and other mutations.
    Conclusions: Patients with mutant EXT1 displayed greater CS than patients with mutant EXT2, indicating that patients with MO harbouring EXT1 mutations sustain more severe ulnar drift deformities than those with EXT2 mutations.
    MeSH term(s) Adult ; Exostoses, Multiple Hereditary/diagnostic imaging ; Exostoses, Multiple Hereditary/genetics ; Forearm/diagnostic imaging ; Humans ; Leg ; Musculoskeletal Diseases ; Mutation
    Language English
    Publishing date 2020-07-04
    Publishing country Japan
    Document type Journal Article
    ZDB-ID 1314243-4
    ISSN 1436-2023 ; 0949-2658
    ISSN (online) 1436-2023
    ISSN 0949-2658
    DOI 10.1016/j.jos.2020.05.012
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  7. Article: Black Colouration of the Knee Articular Cartilage after Spontaneously Recurrent Haemarthrosis.

    Matsumoto, Kazu / Ishimaru, Daichi / Ogawa, Hiroyasu / Akiyama, Haruhiko

    Case reports in orthopedics

    2016  Volume 2016, Page(s) 1238392

    Abstract: Mild discolouration of the articular cartilage is known to gradually occur during aging. However, pathological tissue pigmentation is occasionally induced under several specific conditions. In the present case, we performed total knee replacement in a ... ...

    Abstract Mild discolouration of the articular cartilage is known to gradually occur during aging. However, pathological tissue pigmentation is occasionally induced under several specific conditions. In the present case, we performed total knee replacement in a patient with recurrent haemarthrosis. However, during the operation, we observed severe black colouration of the knee articular cartilage, due to the deposition of hemosiderin and lipofuscin. To our knowledge, this is the first report of severe cartilage pigmentation, due to hemosiderin and lipofuscin deposition in articular cartilage.
    Language English
    Publishing date 2016-05-12
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2684648-2
    ISSN 2090-6757 ; 2090-6749
    ISSN (online) 2090-6757
    ISSN 2090-6749
    DOI 10.1155/2016/1238392
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  8. Article: Reconstruction of a malignant soft tissue tumor around the elbow joint using a frozen autograft treated with liquid nitrogen, in combination with a free anterolateral thigh flap: A report of two cases.

    Hirakawa, Akihiro / Nagano, Akihito / Komura, Shingo / Ishimaru, Daichi / Kawashima, Kenji / Akiyama, Haruhiko

    Case reports in plastic surgery & hand surgery

    2018  Volume 5, Issue 1, Page(s) 80–86

    Abstract: We present two cases of malignant soft tissue tumor around the elbow joint treated ... ...

    Abstract We present two cases of malignant soft tissue tumor around the elbow joint treated with
    Language English
    Publishing date 2018-11-08
    Publishing country United States
    Document type Case Reports
    ISSN 2332-0885
    ISSN 2332-0885
    DOI 10.1080/23320885.2018.1539911
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  9. Article: Suprascapular Nerve Entrapment Caused by Protrusion of an Intraosseous Ganglion of the Glenoid into the Spinoglenoid Notch: A Rare Cause of Posterior Shoulder Pain.

    Ishimaru, Daichi / Nagano, Akihito / Terabayashi, Nobuo / Nishimoto, Yutaka / Akiyama, Haruhiko

    Case reports in orthopedics

    2017  Volume 2017, Page(s) 1704697

    Abstract: We describe a case of suprascapular nerve entrapment caused by protrusion of an intraosseous ganglion of the glenoid into the spinoglenoid notch. A 47-year-old man with left shoulder pain developed an intraosseous cyst in the left glenoid, which came ... ...

    Abstract We describe a case of suprascapular nerve entrapment caused by protrusion of an intraosseous ganglion of the glenoid into the spinoglenoid notch. A 47-year-old man with left shoulder pain developed an intraosseous cyst in the left glenoid, which came into contact with the suprascapular nerve. The area at which the patient experienced spontaneous shoulder pain was innervated by the suprascapular nerve, and 1% xylocaine injection into the spinoglenoid notch under ultrasonographic guidance relieved the pain. Therefore, we concluded that the protrusion of an intraosseous cyst of the glenoid into the spinoglenoid notch was a cause of the pain, and performed curettage. Consequently, the shoulder pain was resolved promptly without suprascapular nerve complications, and the cyst was histologically diagnosed as an intraosseous ganglion. This case demonstrated that the intraosseous ganglion of the glenoid was a benign lesion but could be a cause of suprascapular nerve entrapment syndrome. Curettage is a useful treatment option for a ganglion inside bone and very close to the suprascapular nerve.
    Language English
    Publishing date 2017-05-23
    Publishing country United States
    Document type Case Reports
    ZDB-ID 2684648-2
    ISSN 2090-6757 ; 2090-6749
    ISSN (online) 2090-6757
    ISSN 2090-6749
    DOI 10.1155/2017/1704697
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  10. Article ; Online: Primary bone sarcomas in patients over 40 years of age: A retrospective study using data from the Bone Tumor Registry of Japan.

    Nagano, Akihito / Ishimaru, Daichi / Nishimoto, Yutaka / Akiyama, Haruhiko / Kawai, Akira

    Journal of orthopaedic science : official journal of the Japanese Orthopaedic Association

    2017  Volume 22, Issue 4, Page(s) 749–754

    Abstract: Background: Optimal treatments of patients aged >40 years with osteosarcoma and Ewing sarcoma and of patients with other types of bone sarcoma have not yet been established.: Methods: The clinical characteristics of 746 patients with primary bone ... ...

    Abstract Background: Optimal treatments of patients aged >40 years with osteosarcoma and Ewing sarcoma and of patients with other types of bone sarcoma have not yet been established.
    Methods: The clinical characteristics of 746 patients with primary bone sarcomas aged >40 years listed in the nationwide tumor registry (Bone and Soft Tissue Tumor Registry of Japan) were investigated. Patients with Ewing sarcoma, conventional chondrosarcoma, multiple myeloma, and malignant lymphoma were excluded. The effects of adjuvant chemotherapy were determined by comparing outcomes in patients aged 40-70 years with non-metastatic high grade bone tumors who received surgery plus chemotherapy with those who underwent surgery alone.
    Results: Axial site tumors (38.6%) and distant metastasis at presentation (21.4%) were frequent in patients aged >40 years with primary bone sarcomas. Chemotherapy was administered to 407 (54.6%) patients. Their 5-year overall survival (OS) and progression free survival (PFS) rates were 47.6% and 39.8%, respectively. Multivariate analysis showed that distant metastases at presentation, histological high grade, and radiation therapy were significantly correlated with both OS and PFS. Age and tumor size were also significantly correlated with OS. Patients aged 40-70 years who underwent surgery plus chemotherapy and those who underwent surgery alone had 5-year OS rates of 69.3% and 63.2%, respectively (p = 0.092), and 5-year PFS rates of 55.4% and 50.7%, respectively (p = 0.63).
    Conclusions: Bone sarcoma patients aged >40 years had distinct clinical features and a poor prognosis. Chemotherapy did not improve OS or PFS in patients aged 40-70 years.
    Language English
    Publishing date 2017-07
    Publishing country Japan
    Document type Journal Article
    ZDB-ID 1314243-4
    ISSN 1436-2023 ; 0949-2658
    ISSN (online) 1436-2023
    ISSN 0949-2658
    DOI 10.1016/j.jos.2017.03.008
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