Language：English   Publishing type：Research paper (scientific journal)  

We report a rare case of hypothenar hammer syndrome in a 59-year-old professional Rakugo performer who developed acute digital ischemia in the right hand. Imaging revealed a thrombosed ulnar artery pseudoaneurysm, which was surgically resected and reconstructed using a vein graft. The patient had a history of blunt hand trauma over a decade earlier but remained asymptomatic until sudden onset of ischemia following excessive alcohol intake. This case highlights the potential for delayed yet acute presentation of hypothenar hammer syndrome and underscores the importance of recognizing occupational microtrauma and systemic triggers in vascular hand conditions.

DOI： 10.1016/j.jhsg.2025.100761

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Language：English   Publishing type：Research paper (scientific journal)  

BACKGROUND: Diagnosis of bone metastases would be hastened if they could be detected on plain radiographs obtained at the first visit to an orthopedic surgeon. However, lesions are often undetectable on plain radiography. Bone metastasis is diagnosed at the first visit in only a few patients, and diagnosis is delayed in many cases. We investigated the diagnostic performance of plain radiography that used a new image processing method, Dynamic Visualization II (DV), to diagnose bone metastases. METHODS: We enrolled 29 patients with symptomatic pelvic bone metastases who visited our hospital between April 2018 and March 2021. The evaluation images were created by processing the original plain radiography data with the default settings for DV (Presets 1-4). Processing with Preset 1 resulted in an image converted to conventional film parameters, whereas Presets 2-4 utilized different DV processing methods. The readers were six orthopedic trainees, and the reading time was 30 seconds per image. The rate of correct answers for images processed with Preset 1 was compared to the rates for those processed with the other presets. Additionally, the rate of correct answers was analyzed in relation to clinical variables. RESULTS: The correct answer rate was significantly higher for Preset 3 (43.7%) and Preset 4 (42.5%) than for Preset 1 (28.7%). Correct answer rates for Presets 3 and 4 were significantly higher for elderly patients, male patients, patients with innominate bone lesions, patients with osteolytic bone metastases, and patients with a normal body weight. CONCLUSIONS: Image processing by DV improved diagnosis of bone metastases by plain radiography. DV might hasten diagnosis of bone metastases and help prevent associated complications.

DOI： 10.1272/jnms.JNMS.2025_92-108

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Language：English   Publishing type：Research paper (scientific journal)  

BACKGROUND: Osteoporosis-related fragility fractures such as proximal femoral and vertebral fractures are associated with decreased activities of daily living and a shorter life span. Many persons with osteoporosis do not receive testing or treatment. Introducing fracture liaison services (FLSs) to hospitals is an effective approach for reducing this treatment gap. Understanding interest in osteoporosis among nurses and physicians, their knowledge of osteoporosis, and their thoughts on team medicine for treatment of osteoporosis might be helpful when implementing FLSs. METHODS: An FLS had not been introduced at our hospital. We conducted a questionnaire survey of nurses and physicians at our hospital regarding their interest in osteoporosis, their knowledge of osteoporosis, and their thoughts on team medicine for osteoporosis. RESULTS: About half of the nurses and physicians were interested in osteoporosis. About 70% of nurses and physicians believed that team medicine was necessary for treating osteoporosis, and 50-60% believed that it should be introduced in the hospital. Only 5% of nurses and 18% of physicians had knowledge of FLSs. CONCLUSION: Staff perceptions of team care for osteoporosis were generally supportive in our hospital. However, the introduction of an FLS to the hospital required educational activities for staff. The results of this survey will be helpful to other hospitals introducing FLSs.

DOI： 10.1272/jnms.JNMS.2025_92-107

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Language：Japanese   Publisher：日本股関節学会  

2017～2023年にGTRプレートを用いて骨接合術を行ったステム周囲骨折16例のうち術後6ヵ月以上観察できた11例について、骨折型と手術成績を中心に報告した。手術成績の評価項目は「手術時間」「出血量」「ワイヤリング数」「骨癒合の有無」「全荷重開始時期」「術後の歩行能力」とした。骨折型(Vancouver分類)はType Aが1例、B1が9例、B2が1例であった。手術時間は平均147.7分(122～207分)、出血量は平均256.6ml(27～1511ml)、ワイヤリング数は平均1.6本(0～5本)で、最終観察時には全例で骨癒合が得られていた。術後全荷重開始時期は平均6.9週(4～11週)であった。術後6ヵ月時点の歩行能力は、独歩3例、杖歩行3例、歩行器歩行4例、車椅子1例で、受傷前に比べて低下したものが4例(36%)、受傷前と同程度が7例(64%)であった。

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Language：Japanese   Publisher：日本股関節学会  

当院で大腿骨頸部骨折に対しCPPアプローチによる人工骨頭挿入術を行った46例を対象に、taper wedge型ステム(T群)9例とZweymueller型ステム(Z群)37例に分け、治療成績を比較検討した。その結果、ステムアライメントは2群間で有意差を認めず、いずれも外反挿入・伸展挿入の症例はみられなかった。また、平均17.5ヵ月の経過観察期間中に脱臼を生じた症例も認めなかった。

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