Background: This study aimed to demonstrate the effectiveness of a percutaneous method for treating intra-abdominal abscesses caused by gastrointestinal anastomotic leakage using tandem catheter placement for simultaneous drainage. Methods: This retrospective study involved 12 patients with intra-abdominal abscesses from anastomotic leakage who underwent image-guided percutaneous drainage. In the tandem drainage technique, one or more catheters were inserted into the abscess while an additional catheter was advanced into the gastrointestinal tract through the anastomotic dehiscence to decompress the tract and prevent further leakage. The study evaluated the technical and clinical success rates of this approach. Results: Technical success was achieved in nine of 12 patients (75.0%), with clinical success in eight of these nine patients (88.9%). The mean overall drainage duration after tandem placement was 65.0 days (range, 6–154 days), and the mean hospitalization duration for patients with clinical success was 66.7 days (range, 10–156 days). Conclusion Simultaneous tandem drainage is a feasible treatment for intra-abdominal abscesses caused by anastomotic leakage and may be a viable option for patients who are not candidates for surgery.

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.

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.

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.

Background: This study aimed to demonstrate the effectiveness of a percutaneous method for treating intra-abdominal abscesses caused by gastrointestinal anastomotic leakage using tandem catheter placement for simultaneous drainage. Methods: This retrospective study involved 12 patients with intra-abdominal abscesses from anastomotic leakage who underwent image-guided percutaneous drainage. In the tandem drainage technique, one or more catheters were inserted into the abscess while an additional catheter was advanced into the gastrointestinal tract through the anastomotic dehiscence to decompress the tract and prevent further leakage. The study evaluated the technical and clinical success rates of this approach. Results: Technical success was achieved in nine of 12 patients (75.0%), with clinical success in eight of these nine patients (88.9%). The mean overall drainage duration after tandem placement was 65.0 days (range, 6–154 days), and the mean hospitalization duration for patients with clinical success was 66.7 days (range, 10–156 days). Conclusion Simultaneous tandem drainage is a feasible treatment for intra-abdominal abscesses caused by anastomotic leakage and may be a viable option for patients who are not candidates for surgery.

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.

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.

Background: This study aimed to demonstrate the effectiveness of a percutaneous method for treating intra-abdominal abscesses caused by gastrointestinal anastomotic leakage using tandem catheter placement for simultaneous drainage. Methods: This retrospective study involved 12 patients with intra-abdominal abscesses from anastomotic leakage who underwent image-guided percutaneous drainage. In the tandem drainage technique, one or more catheters were inserted into the abscess while an additional catheter was advanced into the gastrointestinal tract through the anastomotic dehiscence to decompress the tract and prevent further leakage. The study evaluated the technical and clinical success rates of this approach. Results: Technical success was achieved in nine of 12 patients (75.0%), with clinical success in eight of these nine patients (88.9%). The mean overall drainage duration after tandem placement was 65.0 days (range, 6–154 days), and the mean hospitalization duration for patients with clinical success was 66.7 days (range, 10–156 days). Conclusion Simultaneous tandem drainage is a feasible treatment for intra-abdominal abscesses caused by anastomotic leakage and may be a viable option for patients who are not candidates for surgery.

Early detection of third-generation cephalosporin-resistant bacteria in blood culture tests influences the choice of antimicrobial agents. We report on our hospital’s system for early reporting of third-generation cephalosporin-resistant bacteria and its utility. The hospital operates a 24-h simple cefpodoxime (CPDX) testing system, where the content of a sample container with a positive blood culture result is smeared on a CA Sheep Blood Agar/VCM Chocolate EX II fractionation medium, and an antibiotic susceptibility test (AST) disk (Sensi-Disk CPDX) is placed at the center of the medium and incubated. The presence or absence of third-generation cephalosporin-resistant bacteria is estimated from the diameter of the growth inhibition zone. The physician in charge of AST makes comments on the chart based on the simple CPDX test results. The sensitivity of the simple CPDX test for detecting third-generation cephalosporin-resistant bacteria, based on AST results, was 95.5%. Among patients with failed antimicrobial therapy, the rate of switching antimicrobials before the AST results were known was 57.9% in cases where there were comments made by the physicians in charge of AST, compared with 42.9% in cases without comments. These results suggest that the simple CPDX test enables early and accurate detection of third-generation cephalosporin-resistant bacteria, facilitating early switching of antimicrobial agents through collaboration with physicians in charge of AST.

We investigated the relationship between renal function assessment based on cystatin C (CsyC) and serum creatinine levels and the status of chemotherapy use in patients with gynecological cancer undergoing paclitaxel and carboplatin therapy. A significant positive correlation was found between estimated glomerular filtration rate from creatinine (eGFRcre) and eGFR from CsyC (eGFRcys) in the 98 patients included in the study. When eGFRcre and eGFRcys values were grouped according to GFR categories in the CKD severity classification, severe cases (eGFRcys < eGFRcre) were of more advanced age (P < 0.05) and had lower albumin levels (P < 0.01) than matched cases. Although no clear relationship was found between renal function assessment and chemotherapy status, the CysC and eGFRcys values tended to be higher and lower, respectively, in patients whose chemotherapy was deferred (P < 0.01 for CysC, P = 0.07 for eGFRcys). These results suggest that eGFRcre-based renal function assessment is overestimated compared with eGFRcys-based assessment in patients with gynecological cancer and may lead to carboplatin overdose or treatment deferral in elderly patients and patients with hypoalbuminemia.