1.Impact of postoperative nutritional status on the patients’ clinical outcomes and knee biomechanics following total knee arthroplasty in Japan: a prospective cohort study
Kenichi KONO ; Tetsuya TOMITA ; Takaharu YAMAZAKI ; Masashi TAMAKI ; Shuji TAKETOMI ; Ryota YAMAGAMI ; Reo INOUE ; Yuki TANIGUCHI ; Sakae TANAKA ; Kazuhiko FUKATSU
Annals of Clinical Nutrition and Metabolism 2025;17(1):50-57
Purpose:
The impact of postoperative nutritional status on clinical outcomes and biomechanics following total knee arthroplasty remains largely unknown. This study aimed to assess this question using the prognostic nutritional index to evaluate the nutritional status of orthopedic participants.
Methods:
Patients with knee osteoarthritis who underwent total knee arthroplasty (n=49) in Japan were divided into two groups based on their 1-week postoperative prognostic nutritional index. Group L patients had a prognostic nutritional index <40, whereas Group H comprised patients with a prognostic nutritional index ≥40. Postoperative improvements in Knee Injury and Osteoarthritis Outcome Score were evaluated. The patients performed squats under single-fluoroscopic surveillance in the sagittal plane for biomechanical evaluation. A two-dimensional/three-dimensional registration technique was employed to measure the tibiofemoral kinematics. The axial rotation of the femoral component relative to the tibial component and the anteroposterior translation of the medial and lateral femorotibial contact points were measured.
Results:
Group H showed significantly higher pain scores than Group L at 12 and 36 months postoperatively and a significantly higher symptom score at 36 months postoperatively. The kinematic comparison revealed that the axial external rotation in Group L was larger than that in Group H from 70° to 80° with flexion. Moreover, in the medial anteroposterior translation, Group L was more anteriorly located than Group H, with flexion beyond 30°.
Conclusion
The results suggest that a high postoperative nutritional status significantly improved pain and other symptoms and was associated with better knee biomechanics following total knee arthroplasty.
2.Impact of postoperative nutritional status on the patients’ clinical outcomes and knee biomechanics following total knee arthroplasty in Japan: a prospective cohort study
Kenichi KONO ; Tetsuya TOMITA ; Takaharu YAMAZAKI ; Masashi TAMAKI ; Shuji TAKETOMI ; Ryota YAMAGAMI ; Reo INOUE ; Yuki TANIGUCHI ; Sakae TANAKA ; Kazuhiko FUKATSU
Annals of Clinical Nutrition and Metabolism 2025;17(1):50-57
Purpose:
The impact of postoperative nutritional status on clinical outcomes and biomechanics following total knee arthroplasty remains largely unknown. This study aimed to assess this question using the prognostic nutritional index to evaluate the nutritional status of orthopedic participants.
Methods:
Patients with knee osteoarthritis who underwent total knee arthroplasty (n=49) in Japan were divided into two groups based on their 1-week postoperative prognostic nutritional index. Group L patients had a prognostic nutritional index <40, whereas Group H comprised patients with a prognostic nutritional index ≥40. Postoperative improvements in Knee Injury and Osteoarthritis Outcome Score were evaluated. The patients performed squats under single-fluoroscopic surveillance in the sagittal plane for biomechanical evaluation. A two-dimensional/three-dimensional registration technique was employed to measure the tibiofemoral kinematics. The axial rotation of the femoral component relative to the tibial component and the anteroposterior translation of the medial and lateral femorotibial contact points were measured.
Results:
Group H showed significantly higher pain scores than Group L at 12 and 36 months postoperatively and a significantly higher symptom score at 36 months postoperatively. The kinematic comparison revealed that the axial external rotation in Group L was larger than that in Group H from 70° to 80° with flexion. Moreover, in the medial anteroposterior translation, Group L was more anteriorly located than Group H, with flexion beyond 30°.
Conclusion
The results suggest that a high postoperative nutritional status significantly improved pain and other symptoms and was associated with better knee biomechanics following total knee arthroplasty.
3.Impact of postoperative nutritional status on the patients’ clinical outcomes and knee biomechanics following total knee arthroplasty in Japan: a prospective cohort study
Kenichi KONO ; Tetsuya TOMITA ; Takaharu YAMAZAKI ; Masashi TAMAKI ; Shuji TAKETOMI ; Ryota YAMAGAMI ; Reo INOUE ; Yuki TANIGUCHI ; Sakae TANAKA ; Kazuhiko FUKATSU
Annals of Clinical Nutrition and Metabolism 2025;17(1):50-57
Purpose:
The impact of postoperative nutritional status on clinical outcomes and biomechanics following total knee arthroplasty remains largely unknown. This study aimed to assess this question using the prognostic nutritional index to evaluate the nutritional status of orthopedic participants.
Methods:
Patients with knee osteoarthritis who underwent total knee arthroplasty (n=49) in Japan were divided into two groups based on their 1-week postoperative prognostic nutritional index. Group L patients had a prognostic nutritional index <40, whereas Group H comprised patients with a prognostic nutritional index ≥40. Postoperative improvements in Knee Injury and Osteoarthritis Outcome Score were evaluated. The patients performed squats under single-fluoroscopic surveillance in the sagittal plane for biomechanical evaluation. A two-dimensional/three-dimensional registration technique was employed to measure the tibiofemoral kinematics. The axial rotation of the femoral component relative to the tibial component and the anteroposterior translation of the medial and lateral femorotibial contact points were measured.
Results:
Group H showed significantly higher pain scores than Group L at 12 and 36 months postoperatively and a significantly higher symptom score at 36 months postoperatively. The kinematic comparison revealed that the axial external rotation in Group L was larger than that in Group H from 70° to 80° with flexion. Moreover, in the medial anteroposterior translation, Group L was more anteriorly located than Group H, with flexion beyond 30°.
Conclusion
The results suggest that a high postoperative nutritional status significantly improved pain and other symptoms and was associated with better knee biomechanics following total knee arthroplasty.
4.Impact of postoperative nutritional status on the patients’ clinical outcomes and knee biomechanics following total knee arthroplasty in Japan: a prospective cohort study
Kenichi KONO ; Tetsuya TOMITA ; Takaharu YAMAZAKI ; Masashi TAMAKI ; Shuji TAKETOMI ; Ryota YAMAGAMI ; Reo INOUE ; Yuki TANIGUCHI ; Sakae TANAKA ; Kazuhiko FUKATSU
Annals of Clinical Nutrition and Metabolism 2025;17(1):50-57
Purpose:
The impact of postoperative nutritional status on clinical outcomes and biomechanics following total knee arthroplasty remains largely unknown. This study aimed to assess this question using the prognostic nutritional index to evaluate the nutritional status of orthopedic participants.
Methods:
Patients with knee osteoarthritis who underwent total knee arthroplasty (n=49) in Japan were divided into two groups based on their 1-week postoperative prognostic nutritional index. Group L patients had a prognostic nutritional index <40, whereas Group H comprised patients with a prognostic nutritional index ≥40. Postoperative improvements in Knee Injury and Osteoarthritis Outcome Score were evaluated. The patients performed squats under single-fluoroscopic surveillance in the sagittal plane for biomechanical evaluation. A two-dimensional/three-dimensional registration technique was employed to measure the tibiofemoral kinematics. The axial rotation of the femoral component relative to the tibial component and the anteroposterior translation of the medial and lateral femorotibial contact points were measured.
Results:
Group H showed significantly higher pain scores than Group L at 12 and 36 months postoperatively and a significantly higher symptom score at 36 months postoperatively. The kinematic comparison revealed that the axial external rotation in Group L was larger than that in Group H from 70° to 80° with flexion. Moreover, in the medial anteroposterior translation, Group L was more anteriorly located than Group H, with flexion beyond 30°.
Conclusion
The results suggest that a high postoperative nutritional status significantly improved pain and other symptoms and was associated with better knee biomechanics following total knee arthroplasty.
5.Impact of postoperative nutritional status on the patients’ clinical outcomes and knee biomechanics following total knee arthroplasty in Japan: a prospective cohort study
Kenichi KONO ; Tetsuya TOMITA ; Takaharu YAMAZAKI ; Masashi TAMAKI ; Shuji TAKETOMI ; Ryota YAMAGAMI ; Reo INOUE ; Yuki TANIGUCHI ; Sakae TANAKA ; Kazuhiko FUKATSU
Annals of Clinical Nutrition and Metabolism 2025;17(1):50-57
Purpose:
The impact of postoperative nutritional status on clinical outcomes and biomechanics following total knee arthroplasty remains largely unknown. This study aimed to assess this question using the prognostic nutritional index to evaluate the nutritional status of orthopedic participants.
Methods:
Patients with knee osteoarthritis who underwent total knee arthroplasty (n=49) in Japan were divided into two groups based on their 1-week postoperative prognostic nutritional index. Group L patients had a prognostic nutritional index <40, whereas Group H comprised patients with a prognostic nutritional index ≥40. Postoperative improvements in Knee Injury and Osteoarthritis Outcome Score were evaluated. The patients performed squats under single-fluoroscopic surveillance in the sagittal plane for biomechanical evaluation. A two-dimensional/three-dimensional registration technique was employed to measure the tibiofemoral kinematics. The axial rotation of the femoral component relative to the tibial component and the anteroposterior translation of the medial and lateral femorotibial contact points were measured.
Results:
Group H showed significantly higher pain scores than Group L at 12 and 36 months postoperatively and a significantly higher symptom score at 36 months postoperatively. The kinematic comparison revealed that the axial external rotation in Group L was larger than that in Group H from 70° to 80° with flexion. Moreover, in the medial anteroposterior translation, Group L was more anteriorly located than Group H, with flexion beyond 30°.
Conclusion
The results suggest that a high postoperative nutritional status significantly improved pain and other symptoms and was associated with better knee biomechanics following total knee arthroplasty.
6.Temporal validation of a clinical prediction rule for distinguishing locomotive syndromes in community-dwelling older adults: A cross-sectional study from the DETECt-L study
Shigeharu TANAKA ; Ryo TANAKA ; Hungu JUNG ; Shunsuke YAMASHINA ; Yu INOUE ; Kazuhiko HIRATA ; Kai USHIO ; Yasunari IKUTA ; Yukio MIKAMI ; Nobuo ADACHI
Osteoporosis and Sarcopenia 2024;10(1):40-44
Objectives:
Clinical prediction rules are used to discriminate patients with locomotive syndrome and may enable early detection. This study aimed to validate the clinical predictive rules for locomotive syndrome in communitydwelling older adults.
Methods:
We assessed the clinical prediction rules for locomotive syndrome in a cross-sectional setting. The age, sex, and body mass index of participants were recorded. Five physical function tests–grip strength, single-leg standing time, timed up-and-go test, and preferred and maximum walking speeds–were measured as predic tive factors. Three previously developed clinical prediction models for determining the severity of locomotive syndrome were assessed using a decision tree analysis. To assess validity, the sensitivity, specificity, likelihood ratio, and post-test probability of the clinical prediction rules were calculated using receiver operating charac teristic curve analysis for each model.
Results:
Overall, 280 older adults were included (240 women; mean age, 74.8 ± 5.2 years), and 232 (82.9%), 68 (24.3%), and 28 (10.0%) participants had locomotive syndrome stages ≥ 1, ≥ 2, and = 3, respectively. The areas under the receiver operating characteristics curves were 0.701, 0.709, and 0.603, in models 1, 2, and 3, respectively. The accuracies of models 1 and 2 were moderate.
Conclusions
These findings indicate that the models are reliable for community-dwelling older adults.
7.A Case of Chronic Kidney Disease Stage G4 Successfully Treated with Yojinkodakuto
Hirofumi HIRANA ; Kazuhiko SHIMIZU ; Akihiro FUTAMURA ; Kazuyuki HIRATANI ; Yukie INOUE ; Keiko OGAWA
Kampo Medicine 2023;74(4):353-364
We report a case of 2X-year-old man with G4 chronic kidney disease (CKD G4). He had a decline in estimated glomerular filtration rate (eGFR) after the initiation of BEP (cisplatin, etoposide, bleomycin) therapy followed by VelP (ifosfamide, cisplatin, vinblastine) therapy for mixed germ cell testicular tumor. The patient’s eGFR did not recover during 59 months after chemotherapy, but showed a tendency to improve after treatment with yojinkodakuto. Yojinkodakuto was prepared by the IPCD (immersing powdered crude drugs) method. The IPCD method was adopted to ensure convenience and good quality prescription herbal medicines. Although eGFR fluctuated after yojinkodakuto treatment, at 3 years, serum creatinine (sCr) and eGFR progressed well, with sCr reducing from 3.98 mg/dL at initiation to 2.6 mg/dL and eGFR increasing from 16 mL/min/1.73 m2 to 25.4 mL/min/1.73 m2. In addition, a long-term eGFR plot analysis confirmed the 3-year improvement trend.
8.Association Between the Cool Temperature-dependent Suppression of Colonic Peristalsis and Transient Receptor Potential Melastatin 8 Activation in Both a Randomized Clinical Trial and an Animal Model
Satoshi SUGINO ; Ken INOUE ; Reo KOBAYASHI ; Ryohei HIROSE ; Toshifumi DOI ; Akihito HARUSATO ; Osamu DOHI ; Naohisa YOSHIDA ; Kazuhiko UCHIYAMA ; Takeshi ISHIKAWA ; Tomohisa TAKAGI ; Hiroaki YASUDA ; Hideyuki KONISHI ; Yasuko HIRAI ; Katsura MIZUSHIMA ; Yuji NAITO ; Toshifumi TSUJI ; Takashi OKUDA ; Keizo KAGAWA ; Makoto TOMINAGA ; Yoshito ITOH
Journal of Neurogastroenterology and Motility 2022;28(4):693-705
Background/Aims:
Several studies have assessed the effect of cool temperature on colonic peristalsis. Transient receptor potential melastatin 8 (TRPM8) is a temperature-sensitive ion channel activated by mild cooling expressed in the colon. We examined the antispasmodic effect of cool temperature on colonic peristalsis in a prospective, randomized, single-blind trial and based on the video imaging and intraluminal pressure of the proximal colon in rats and TRPM8-deficient mice.
Methods:
In the clinical trial, we randomly assigned a total of 94 patients scheduled to undergo colonoscopy to 2 groups: the mildly cool water (n = 47) and control (n = 47) groups. We used 20 mL of 15°C water for the mildly cool water. The primary outcome was the proportion of subjects with improved peristalsis after treatment. In the rodent proximal colon, we evaluated the intraluminal pressure and performed video imaging of the rodent proximal colon with cool water administration into the colonic lumen. Clinical trial registry website (Trial No. UMIN-CTR; UMIN000030725).
Results:
In the randomized controlled trial, after treatment, the proportion of subjects with no peristalsis with cool water was significantly higher than that in the placebo group (44.7% vs 23.4%; P < 0.05). In the rodent colon model, cool temperature water was associated with a significant decrease in colonic peristalsis through its suppression of the ratio of peak frequency (P < 0.05). Cool temperaturetreated TRPM8-deficient mice did not show a reduction in colonic peristalsis compared with wild-type mice.
Conclusion
For the first time, this study demonstrates that cool temperature-dependent suppression of colonic peristalsis may be associated with TRPM8 activation.
9.Changing Concept of Drug Dispensing Revealed by Text Mining of Past and Present Guidelines
Naoko INOUE ; Kazumasa YASUDA ; Yuto MORI ; Hayato AKIMOTO ; Kousuke OHARA ; Akio NEGISHI ; Mitsuyoshi OKITA ; Shinji OSHIMA ; Sachihiko NUMAJIRI ; Shigeru OHSHIMA ; Kazuhiko JUNI ; Daisuke KOBAYASHI
Japanese Journal of Social Pharmacy 2018;37(2):81-90
Drug dispensing is a statutory and designated duty of a pharmacist. We aimed to examine the changes in the nature of drug dispensing using a text mining method. Our corpus consisted of text documents from “Chozai Shishin”, the most standard manual for dispensing drugs in Japan, Editions 1 to 13 (Japan Pharmaceutical Association), and we used the KH Coder software for text mining. We constructed networks showing the association between frequent word co-occurrence and edition number, and co-occurrence relations for frequent words in each edition. We found that “patient” superseded “dispensing” as a frequent term over time. “Dispensing” was another frequent term with a highly centralized node in each edition. Accordingly, we targeted the term “dispensing” for network analysis to depict its co-occurrence relations. We found that the range of related words for “dispensing” broadened from “preparation” and “compounding” to include “patient adherence instructions”, “assessment”, “medical treatment”, and “information provision”. Accordingly, we concluded that the content of “dispensing”, which is a pharmacist’s duty, has expanded from the duties of “dispensing drugs” to include “responding to patients” within the definition of “dispensing”, and we were able to present this finding as objective data by using the mechanical method known as text mining.
10.Changing Concept of Drug Dispensing Revealed by Text Mining of Past and Present Guidelines
Naoko INOUE ; Kazumasa YASUDA ; Yuto MORI ; Hayato AKIMOTO ; Kousuke OHARA ; Akio NEGISHI ; Mitsuyoshi OKITA ; Shinji OSHIMA ; Sachihiko NUMAJIRI ; Shigeru OHSHIMA ; Kazuhiko JUNI ; Daisuke KOBAYASHI
Japanese Journal of Social Pharmacy 2018;37(2):81-90
Drug dispensing is a statutory and designated duty of a pharmacist. We aimed to examine the changes in the nature of drug dispensing using a text mining method. Our corpus consisted of text documents from “Chozai Shishin”, the most standard manual for dispensing drugs in Japan, Editions 1 to 13 (Japan Pharmaceutical Association), and we used the KH Coder software for text mining. We constructed networks showing the association between frequent word co-occurrence and edition number, and co-occurrence relations for frequent words in each edition. We found that “patient” superseded “dispensing” as a frequent term over time. “Dispensing” was another frequent term with a highly centralized node in each edition. Accordingly, we targeted the term “dispensing” for network analysis to depict its co-occurrence relations. We found that the range of related words for “dispensing” broadened from “preparation” and “compounding” to include “patient adherence instructions”, “assessment”, “medical treatment”, and “information provision”. Accordingly, we concluded that the content of “dispensing”, which is a pharmacist’s duty, has expanded from the duties of “dispensing drugs” to include “responding to patients” within the definition of “dispensing”, and we were able to present this finding as objective data by using the mechanical method known as text mining.


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