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135 results on '"Miyasaka, Dai"'

5. Analysis of Phase Angle and Balance and Gait Functions in Pre-Frail Individuals: A Cross-Sectional Observational Study

Author

Homma, Daisuke, Minato, Izumi, Imai, Norio, Miyasaka, Dai, Sakai, Yoshinori, Horigome, Yoji, Suzuki, Hayato, Dohmae, Yoichiro, and Endo, Naoto

Subjects
muscle volume, motor function, bioelectrical impedance analysis, muscle quality
Abstract

We measured the muscle mass and phase angle of each body part to evaluate the relationship between balance and gait functions in individuals with a pre-frailty status. This cross-sectional observational study determined the skeletal muscle mass-to-body weight ratio and phase angles of 21 control (robust) and 29 pre-frail subjects. Their Brief-Balance Evaluation Systems Test, Timed Up-and-Go (TUG) test, Life-Space Assessment, and Modified Fall Efficacy Scale scores plus the relationship between muscle mass, phase angle, and motor function were evaluated. In the pre-frailty group (three males, 26 females, aged 75.58±7.60 years), significant correlations were noted between the Brief-Balance Evaluation Systems Test score and lower-limb (r=0.614) and wholebody (r=0.557) phase angles, and between the TUG test score and lower-limb muscle mass-to-body weight ratio (r=−0.616), lower-limb phase angle (r=−0.616), and whole-body phase angle (r=−0.527). Evaluating the phase angle of the lower extremities of pre-frail patients and intervening accordingly may help clinicians maintain and improve these patients’ balance and gait functions.

Published
2023

8. Comparison of Intravenous Acetaminophen and Intravenous Patient-Controlled Analgesia Fentanyl after Total Hip Arthroplasty: A Multicenter Randomized Controlled Trial.

Author

Sakai, Yoshinori, Imai, Norio, Miyasaka, Dai, Suzuki, Hayato, Horigome, Yoji, Takahashi, Yasuhito, and Kawashima, Hiroyuki

Subjects
TOTAL hip replacement, PATIENT-controlled analgesia, FENTANYL, POSTOPERATIVE pain, ACETAMINOPHEN, INTRAVENOUS therapy
Abstract

Background: Opioids often need to be discontinued because they cause nausea, whereas the administration of intravenous acetaminophen (APAP) causes less nausea and vomiting. This study aimed to compare the effects of fentanyl-based intravenous patient-controlled analgesia (IV-PCA) and intravenous APAP on pain and nausea after total hip arthroplasty (THA). Methods: We prospectively investigated primary THA patients who underwent the anterolateral supine approach at four centers between October 2021 and October 2022. The patients (n = 178) were divided randomly into IV-PCA (n = 88) and APAP groups (n = 90). Rest pain, motion pain, and nausea were assessed using NRS scores. Results: Compared with the APAP group, the IV-PCA group experienced significantly greater resting pain and nausea on postoperative day 1. A correlation was found between preoperative and postoperative pain. Postoperative nausea at 8 h was significantly correlated with pain at rest at 4 h (r = 0.193), 8 h (r = 0.194), day 1 (r = 0.245), and day 2 (r = 0.188) after surgery. Early postoperative pain and nausea correlated with subsequent pain and nausea. Conclusions: Intravenous APAP is associated with less pain and nausea and is superior to IV-PCA. [ABSTRACT FROM AUTHOR]

Published
2023
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21. Three-dimensional Evaluation of Abnormal Gait in Patients with Hip Osteoarthritis

Author

Homma, Daisuke, Minato, Izumi, Imai, Norio, Miyasaka, Dai, Sakaif, Yoshinori, Horigome, Yoji, Suzuki, Hayato, Shimada, Hayato, Dohmae, Yoichiro, and Endo, Naoto

Subjects
Adult, Male, abnormal gait, Middle Aged, Osteoarthritis, Hip, range of motion, Biomechanical Phenomena, timed up and go test, hip osteoarthritis, three-dimensional gait analysis, Case-Control Studies, Accelerometry, Humans, Female, Range of Motion, Articular, Gait Analysis, human activities, Aged
Abstract

Indexes for objectively evaluating abnormal gait in hip osteoarthritis (OA) patients and determining effective interventions are unclear. We analyzed the abnormal gait of hip OA patients by focusing on movements of the trunk and pelvis to establish an effective evaluation index for each direction of motion. We studied 28 patients with secondary hip OA due to developmental dysplasia of the hip and 16 controls. The trunk and pelvic movements during gait were measured in the medial-lateral (x), vertical (y), and back-and-forth (z) directions by a triaxial angular accelerometer. Gait speed, steps, step length, muscle strength, range of motion, and timed up-and-go (TUG) test performance were measured. We determined the correlations between physical function and the index of abnormal gait in the hip OA patients. Movements other than trunk and pelvic motions in the y-direction indicated abnormal gait in the patients. Significant correlations were found between abnormal gait and range of motions (extension, internal rotation), TUG score, stride length, and steps. The TUG test, stride length and steps were important for evaluating abnormal gait in hip OA patients. Individual interventions for each movement direction are required.

Published
2020

28. Atypical femoral fracture associated with delayed union for which the cessation of alendronate and daily administration of teriparatide contributed to fracture healing: histopathological evidence of the enhancement in bone formation parameters.

Author

Kondo, Naoki, Miyasaka, Dai, Watanabe, Yo, Sato, Hiroe, Kanda, Toshihiro, and Endo, Naoto

Subjects
*FRACTURE healing, *REOPERATION, *HISTOMORPHOMETRY, *TERIPARATIDE, *PATIENTS
Abstract

A female patient with systemic lupus erythematosus developed an atypical femoral fracture of the left femur after 5 years of glucocorticoid and alendronate therapy. We performed intramedullary nailing. However, 1 week later, we performed a revision surgery using a locking plate and an iliac bone graft because of displacement at the fracture site. At this stage, alendronate was discontinued and daily teriparatide was introduced and continued for 24 months. Twenty months after the revision surgery, a re-revision surgery was performed with an iliac bone graft because of breakage of the locking plate and fracture non-union. Fracture healing was eventually obtained 15 months after the re-revision surgery. Biopsies of the ilium before the treatment and 20 months after daily teriparatide treatment were evaluated. The histology revealed that proliferating osteoid and cuboidal osteoblasts were detected around the osteoid tissue after teriparatide treatment. Bone histomorphometry findings showed that bone volume parameters and osteoid parameters prominently increased with the teriparatide treatment, but not bone resorption parameters. Laboratory findings revealed the elevation of bone-specific alkaline phosphatase (24 U/L at 7 months) compared to its pre-teriparatide level (8.1 U/L) and increased bone mineral density of the hip (from −0.2 to 0.0 in T-score). These data indicated that the discontinuation of alendronate and initiation of teriparatide treatment activated bone-forming ability in our patient and may have contributed to fracture healing. [ABSTRACT FROM AUTHOR]

Published
2020
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37. Bone Formation Parameters of the Biopsied Ilium Differ between Subtrochanteric and Diaphyseal Atypical Femoral Fractures in Bisphosphonate-Treated Patients

Author

Kondo, Naoki, primary, Fukuhara, Tomomi, additional, Watanabe, Yo, additional, Miyasaka, Dai, additional, Yamamoto, Noriaki, additional, Sato, Hiroe, additional, Wada, Yoko, additional, Nakatsue, Takeshi, additional, Fujisawa, Junichi, additional, Sakuma, Mayumi, additional, Imai, Norio, additional, Yoda, Takuya, additional, Narita, Ichiei, additional, and Endo, Naoto, additional

Published
2017
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39. Investigation on the measurement sites of the cross-sectional areas of the gluteus maximus and gluteus medius.

Author

Miyasaka, Dai, Horigome, Yoji, Suzuki, Hayato, Endo, Naoto, Homma, Daisuke, Minato, Izumi, Imai, Norio, Sakai, Yoshinori, and Dohmae, Yoichiro

Subjects
*GLUTEAL muscles
Abstract

Purposes: To verify the relationship between muscle volume and muscular strength of different cross-sectional areas (CSAs) of the gluteus maximus and medius, and to clarify the effective evaluation index.Methods: Twenty healthy adults were enrolled in this cross-sectional study. Magnetic resonance images were evaluated, and CSAs of the gluteus maximus and medius were calculated. Calculation sites were the peak CSA, lowest end of the sacroiliac joint CSA, and just above the femoral head CSA. Muscle volume and muscular strength were measured. The correlation between muscular CSA, muscle volume, and muscular strength was verified using Pearson's correlation coefficient (p < 0.05). One-way analysis of variance and the Tukey-Kramer test were used to verify differences in each CSA (p < 0.05).Results: A significantly positive correlation was found between muscular CSA, muscle volume, and muscular strength of both muscles (p < 0.05). For the gluteus maximus, the muscular CSA calculated just above the femoral head showed a significantly larger value than that calculated at the lowest end of the sacroiliac joint (p < 0.05). For the gluteus medius, the peak CSA and muscular CSA calculated at the lowest end of the sacroiliac joint were significantly larger than that calculated just above the femoral head (p < 0.05).Conclusions: The maximum CSA of the gluteus maximus was found just above the femoral head and that of the gluteus medius was near the lowest end of the sacroiliac joint; hence, CSAs should be calculated at these sites. The CSA reflected muscle volume and strength. [ABSTRACT FROM AUTHOR]

Published
2019
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40. 健常者と臼蓋形成不全における骨頭被覆の3次元的評価 : 新しい方法

Author

Miyasaka, Dai

Subjects
musculoskeletal diseases, three-dimensional imaging, femoral head coverage, acetabulum, patient positioning, hip dysplasia
Abstract

The acetabular coverage of the femoral head has been assessed in two-dimensions as the projected covered area or the covered angle on plain radiographs. We present a novel method of the three-dimensional assessment of femoral head coverage obtained by evaluatmg the covered volume of the femoral head in both normal and dysplastic hips. We also assessed the covered angles on the vertical slices passing through the center of the femoral head. The mean covered volume of the femoral head was 57.4% in normal hips and 26.6% in dysplastic hips. In dysplastic hips, the L-CE, A-CE, and P-CE angles were 7.7°, 21.8°, and 95.8°, respectively, while the acetabular angle was 27.5°. In normal hips, the CE angles were 34.0°, 56.8°, and 109.4°, respectively, while the acetabular angle was 7.2°. Our study suggests the usefulness of a novel 3D assessment for acetabular coverage of the femoral head. This assessment provided the precise 3D information necessary to diagnose hip dysplasia and assess the deficiency of acetabular coverage in these patients. Moreover, we may detect a cut-off between normal and dysplastic hips in the 3D assessment by assessing a large number of dysplastic hips both morphologically and using the new assessment., 学位の種類: 博士（医学）. 報告番号: 甲第3944号. 学位記番号: 新大院博（医）甲第611号.学位授与年月日: 平成26年9月22日, Acta Medica Okayama. 2014, 68(5), 277-284., 新大院博（医）甲第611号

Published
2014

43. Three-dimensional Assessment of Femoral Head Coverage in Normal and Dysplastic Hips : A Novel Method

Author

Miyasaka, Dai, 宮坂, 大, Miyasaka, Dai, and 宮坂, 大

Abstract

学位の種類: 博士（医学）. 報告番号: 甲第3944号. 学位記番号: 新大院博（医）甲第611号.学位授与年月日: 平成26年9月22日, Acta Medica Okayama. 2014, 68(5), 277-284., The acetabular coverage of the femoral head has been assessed in two-dimensions as the projected covered area or the covered angle on plain radiographs. We present a novel method of the three-dimensional assessment of femoral head coverage obtained by evaluatmg the covered volume of the femoral head in both normal and dysplastic hips. We also assessed the covered angles on the vertical slices passing through the center of the femoral head. The mean covered volume of the femoral head was 57.4% in normal hips and 26.6% in dysplastic hips. In dysplastic hips, the L-CE, A-CE, and P-CE angles were 7.7°, 21.8°, and 95.8°, respectively, while the acetabular angle was 27.5°. In normal hips, the CE angles were 34.0°, 56.8°, and 109.4°, respectively, while the acetabular angle was 7.2°. Our study suggests the usefulness of a novel 3D assessment for acetabular coverage of the femoral head. This assessment provided the precise 3D information necessary to diagnose hip dysplasia and assess the deficiency of acetabular coverage in these patients. Moreover, we may detect a cut-off between normal and dysplastic hips in the 3D assessment by assessing a large number of dysplastic hips both morphologically and using the new assessment., 博士（医学）, 新潟大学

Published
2014

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