A 6-Month Follow-up Study on Adherence and Satisfaction with Lower Limb Prostheses and Orthoses Delivered to Community-Dwelling People in Japan.

Introduction: We aimed to evaluate adherence and satisfaction with prostheses and orthoses (POs) of the lower extremities delivered to community-dwelling patients and to assess the relationship of adherence and satisfaction with patient background factors, including medical status, physical findings, and level of participation. Methods: : We conducted a descriptive cohort study. Consecutive patients with disability who applied for lower extremity POs were invited to enroll. The patients' background information was collected at enrolment, and they were asked at 6 months after PO delivery whether they were using their PO as expected prior to its delivery, and, on a numerical rating scale (NRS, 0 - 10), if they were satisfied with their POs. Furthermore, the relationship between usage/satisfaction and the participants' backgrounds was evaluated and the participants' comments regarding their POs were summarized. Results: : This study analyzed the data of 51 participants (mean age, 56.5 ± 19 years). At the 6-month follow-up, 45 participants used POs as much as they had expected before delivery; this group was younger than their counterparts (52.7 versus 69.2 years). The median satisfaction score using the NRS was 8.5. Older participants (r = - 0.33), participants who were able to attach and remove their POs, and those who were independent in locomotion scored lower on satisfaction. Other background factors were not different regarding adherence or satisfaction. Conclusions: : This study demonstrated the difficulty in predicting the usage and satisfaction with lower limb POs from users' backgrounds. Producer-user communication, particularly with patients of older age and/or a higher level of participation, may improve adherence and satisfaction.

Successful Treatment of Metastatic Gallbladder Carcinoma with a High Tumor Mutational Burden Using Pembrolizumab.

A woman in her 70s presented with gallbladder carcinoma with liver metastases and peritoneal dissemination. After standard chemotherapy failed, a liver biopsy was performed. A FoundationOne CDx analysis showed that the tumor mutational burden (TMB) was high (34 mutations/megabase). Treatment with pembrolizumab, which is an immune checkpoint inhibitor (ICI), resulted in a partial response, and there were no significant immune-related adverse events. According to recently published reports, the frequency of TMB-high biliary tract cancer (BTC) is 3.4-4%, which makes it extremely rare. In conclusion, ICIs may be effective in patients with TMB-high BTC.

Prognostic Factors for the Postoperative Improvement of Spinal Cord-Related Neuropathic Pain in Patients with Degenerative Cervical Myelopathy.

Introduction: The number of patients with degenerative cervical myelopathy (DCM) requiring surgical treatment has markedly increased in today's aging society. Such patients often exhibit impaired activities of daily living because of motor dysfunction as well as neuropathic pain (NeP). Although many studies have demonstrated the safety and efficacy of surgical treatment for DCM, residual postoperative NeP has not been well described. Therefore, this study aimed to identify the predictors of postoperative NeP improvement in patients with DCM. Methods: This retrospective study included 92 outpatients with postoperative chronic NeP (≥3 months) related to DCM. Data were obtained from clinical information, magnetic resonance imaging (MRI) findings, and patient-based questionnaires using the Neuropathic Pain Symptom Inventory (NPSI) and the Brief Scale for Psychiatric Problems in Orthopaedic Patients. Univariate and multivariate analyses were performed for patients with NPSI improvement rates <30% and ≥30% to identify prognostic factors. Results: Among 92 patients, 61 (66.3%) had residual NeP, with a low improvement rate even after surgery. The independent negative prognostic factors for NeP improvement after surgery were older age at operation (odds ratio (OR): 0.932), longer symptom duration before surgery (OR: 0.589), and higher preoperative NPSI score (OR: 0.932). The cut-off value of symptom duration before surgery for postoperative NeP improvement was 1 year. By contrast, the preoperative Japanese Orthopaedic Association score and MRI findings, including signal intensity change and the degree of spinal cord compression, were not associated with postoperative NeP improvement. Moreover, even in patients with an NPSI improvement rate ≥30%, the NPSI subscores for deep pain and paresthesia/dysesthesia remained high. Conclusions: Discrepancies between physician- and image-based assessments and patient-based assessments were identified as factors associated with improvement in postoperative NeP. Our findings are important for both spine surgeons and patients to manage patient expectations with respect to recovery during the postoperative course.

Clinical impact of short limited lumbar fusion for adult spinal deformity with postural and radiological abnormalities.

Extensive surgical spinopelvic fusion for patients with adult spinal deformity (ASD) to achieve optimal radiological parameters should be avoided. The aim of this study was to review clinical and imaging findings in patients with ASD with postural and radiological abnormalities who underwent a novel three-level limited lumbar fusion as two-stage surgery in an attempt to propose a better tolerated alternative to spinopelvic long fusion to the pelvis. The subjects were 26 patients with a minimum follow-up period of 2 years. Cobb angle, C7 sagittal vertical axis, and pelvic incidence (PI) minus lumbar lordosis (LL) were significantly improved after surgery and maintained at follow-up. Most radiological parameters were corrected with lateral interbody fusion (LIF) as the initial surgery, and few with posterior fusion. PI-LL remained high after limited lumbar fusion, but scores on patient-based questionnaires and sagittal and coronal tilt in gait analysis improved. In cases with postoperative progression of proximal junctional kyphosis (11.5%), residual L1-L2 local kyphosis after LIF was the most significant radiological feature. In some cases of ASD with postural abnormalities, short limited lumbar fusion gives sufficient postoperative clinical improvement with preservation of spinal mobility and activities of daily living. The range of fixation should be determined based on radiological parameters after LIF to avoid postoperative complications.

Two cases of rapid progression of esophageal varices after atezolizumab-bevacizumab treatment for hepatocellular carcinoma.

We report two cases of rapid progression of esophageal varices after atezolizumab-bevacizumab treatment for hepatocellular carcinoma (HCC). Case 1: a man in his 60s with hepatitis C-related liver cirrhosis after viral eradication by direct acting antiviral. He was diagnosed with HCC 8 years previously. He had undergone surgical resection 4 times, radio-frequency ablation (RFA) several times, and transcatheter arterial chemoembolization (TACE). However, HCC progressed and could not be controlled by locoregional treatment. Systemic chemotherapy was, therefore, selected. Atezolizumab-bevacizumab was administered after lenvatinib and sorafenib failure. Before starting treatment, his liver function was preserved (Child-Pugh score 5 and class A). His alpha fetoprotein and des-gamma-carboxyprothrombin levels were 3.6 ng/mL and 443 mAU/mL, respectively. Esophagogastroduodenoscopy showed no remarkable esophageal varices before atezolizumab-bevacizumab treatment. Nine months after the initiation of atezolizumab-bevacizumab, the patient was admitted for hematemesis from esophageal varices. The disease control of HCC was classified as stable disease (SD) for the liver and lung metastases, and partial response for the lymph node metastases. Neither AST nor ALT was markedly elevated in the clinical course. Endoscopic variceal ligation (EVL) for the spurting point of large esophageal varices with red wale signs was able to successfully achieve hemostasis. Atezolizumab-bevacizumab was stopped and additional EVL eradicated the esophageal varices. However, the post-banding ulcer was prolonged in comparison to usual cases. Case 2: a man in his 60s with hepatitis C-related liver cirrhosis after viral eradication by direct acting antiviral therapy. He was diagnosed with HCC 6 years previously. He had received RFA 2 times and TACE 7 times. Atezolizumab-bevacizumab was administered after lenvatinib failure. The disease control of HCC was classified as SD; however, the esophageal varices ruptured after 15 courses of atezolizumab-bevacizumab. Neither AST nor ALT were markedly elevated in the clinical course. The esophageal varices of these patients did not require treatment before atezolizumab-bevacizumab; however, they rapidly worsened and ruptured during atezolizumab-bevacizumab treatment. Although rare, similar cases with rapid progression of portal hypertension after atezolizumab-bevacizumab have been reported. We should pay attention to the worsening of esophageal varices during atezolizumab-bevacizumab treatment and poor wound healing after EVL.

Effects of knee extension exercise starting within 4 h after total knee arthroplasty.

PURPOSE: To determine the beneficial effects of knee extension exercise applied from 4 h after TKA. METHODS: Patients undergoing TKA for osteoarthritis were assigned to early rehabilitation (n = 41) and control rehabilitation (n = 39) groups. Rehabilitation of knee extension exercise was started within 4 h postoperative in the early group and 2 days after surgery in the control group. Joint range of motion and pain were assessed before surgery and at 3 days to 12 months after surgery. Muscle strength and gait parameters were assessed before and 3 weeks after surgery. RESULTS: Extension range of motion was significantly increased in the early group than the control at 3 days, 3 weeks and 6 months after surgery. In gait parameters, peak knee flexion and extension angles during stance phase were significantly improved in the early group than the control group at 3 weeks after surgery. Flexion range of motion was increased in the early group than the control at 12 months after surgery. CONCLUSION: Starting knee extension exercise within 4 h after TKA reduced the early loss of extension range of motion and improved gait pattern and seemed to contribute to be better functional outcome one year after surgery.

A case of conversion hepatectomy for huge ruptured hepatocellular carcinoma after transarterial embolization and lenvatinib therapy.

We herein report a successfully treated case of huge ruptured hepatocellular carcinoma (HCC) by conversion hepatectomy after transarterial embolization (TAE) and lenvatinib therapy. A 33-year-old male patient with right hypochondralgia and liver tumor was referred to our hospital. He had a history of surgery for heart malformation. The tumor at the right lobe was 15 cm in diameter with bloody ascites. Right atrial thrombus 4.5 cm in diameter and marked cardiac dilatation were observed. TAE with ethanol suspended in lipiodol and gelatin sponge achieved hemostasis of the ruptured HCC. Although viable HCC remained after TAE, surgical treatment was abandoned because of abdominal wall invasion and his heart function. Lenvatinib and rivaroxaban were then initiated for HCC and atrial thrombus, respectively. Lenvatinib treatment resulted in a reduction in tumor marker levels and the tumor size. First, we planned conversion hepatectomy after 5 months of lenvatinib. However, recurrence of atrial thrombus prompted us to put off the surgery, and lenvatinib was re-administered. After improvement of atrial thrombus, we finally performed conversion hepatectomy 10 months after starting lenvatinib administration. The tumor was completely removed by combined resection of the diaphragm, and the patient has been doing well without any signs of recurrence.

The Effect of Static Stretching Duration on Muscle Blood Volume and Oxygenation.

ABSTRACT: Matsuo, H, Kubota, M, Shimada, S, Kitade, I, Matsumura, M, Nonoyama, T, Koie, Y, Naruse, H, Takahashi, A, Oki, H, Kokubo, Y, and Matsumine, A. The effect of static stretching duration on muscle blood volume and oxygenation. J Strength Cond Res 36(2): 379-385, 2022-Muscle blood volume increases due to stretching; however, the minimum duration of stretching to sustainably increase the muscle blood volume after stretching has not yet been elucidated. This study examined whether the duration of static stretching influenced the muscle blood volume and oxygenation. Ten healthy male subjects participated in this controlled laboratory study. Static stretching of the gastrocnemius muscle was performed for 5 durations (20 seconds, and 1, 2, 5, and 10 minutes). Changes in both the total-Hb (ΔtHb), as an index of blood volume, and tissue oxygenation index (ΔTOI) from baseline were determined using near-infrared spectroscopy. Both the ΔtHb and ΔTOI decreased during stretching and increased after stretching. The minimum value of ΔtHb during stretching did not differ in each of the 5 durations, but minimum ΔTOI progressively decreased with longer durations of stretching. The peak value of ΔtHb after stretching increased with longer durations of stretching. The value of ΔtHb at 5 minutes after the end of stretching increased with more than 2 minutes of stretching compared with 20 seconds of stretching, although the value of ΔtHb did not significantly differ between the 2, 5, and 10 minutes' durations. These findings suggest that a longer duration of stretching elicits a decrease in muscle oxygenation during stretching, and an increase in both the muscle blood volume and oxygenation after stretching. The results indicated that the minimum duration of stretching to sustain an increase in the muscle blood volume after stretching is 2 minutes.

Injuries and Illnesses Observed in Athletes from Beginner to Elite Levels at the 18th National Sports Festival for Persons with Disabilities in Japan.

OBJECTIVES: : This study aimed to describe the injuries and illnesses that occurred at the 18th National Sports Festival for Persons with Disabilities in Japan, which was attended by more than 3000 athletes from beginner to elite levels. METHODS: : Records from medical stations set up at the venues for each sport were reviewed. The incidence rates (IRs) were calculated as the number of medical station visits per 1000 athlete-days. The backgrounds of injuries and illnesses were investigated. RESULTS: : In total, 3277 athletes attended the festival, and 134 eligible medical station visits were analyzed. Overall, 102 athletes complained of injuries. For the whole schedule of the festival, IRs were 15.5 for injuries and illnesses and 11.8 for injuries alone. For injuries and illnesses, high IRs were seen in soccer (39.8), basketball (25.6), and foot baseball (22.4); for injuries alone, high IRs were also seen in soccer (33.6), basketball (25.6), and foot baseball (16.8). The most frequent symptoms were internal symptoms (n=32), contusions (n=30), and wounds (n=24). Joint sprains occurred in various sports, whereas muscle strains happened mainly in disciplines demanding sprinting or high agility. Of the 55 cases that occurred during events or public rehearsals, 45 were traumatic, whereas the relation to sports activities was not described in 51 cases. Of participants with internal symptoms, 11 were suggested to have viral infections. We identified 21 injuries caused by falls. CONCLUSIONS: : Minor trauma and viral infection were the most frequently observed symptoms among injuries and illnesses, respectively. Structured medical records and organized surveillance systems should be utilized to improve data collection and understand the onset of injury and illness.

Functional outcomes after the treatment of hip fracture.

Osteoporotic hip fracture is a major public health issue. Estimation of the outcome and maximization of functional recovery after fracture is very important in the treatment of older patients. The purposes of this study were to clarify the functional outcomes after the treatment of hip fracture and to identify the factors that influence functional recovery. In the present study, 228 patients admitted to an acute-care hospital from January 2016 to June 2018 were evaluated. The patients were categorized into a trochanteric fracture group (n = 128) and a neck fracture group (n = 100). We retrospectively reviewed their ambulation ability 6 months after fracture using the Functional Ambulation Category (FAC) score. The other survey items were the presurgical duration, length of hospital stay, time until beginning to walk using parallel bars, complications affecting treatment, and mortality rate. The 6-month follow-up rate was 54.4% (n = 124). The results showed that the patients with trochanteric fracture were significantly older than those with neck fracture (86 vs. 82 years, respectively; p = 0.03). In total, 85.0% of patients with trochanteric fracture and 92.2% of patients with neck fracture were independent ambulators before injury (FAC score of 4 or 5). The FAC score 6 months after fracture was positively correlated with the FAC score before fracture and at discharge (all p<0.001) and negatively correlated with patient age (p<0.001) and presurgical duration for patients with neck fracture (p = 0.04). There was no statistically significant correlation with the length of hospital stay or the time until beginning to walk using parallel bars. In conclusion, patients with trochanteric fractures were older than those with neck fractures. In both fracture types, walking recovery 6 months after hip fracture was related to the FAC score before injury and at discharge from an acute-care hospital but not to the time until beginning to walk using parallel bars.

White matter changes in children and adolescents with reactive attachment disorder: A diffusion tensor imaging study.

Childhood maltreatment is associated with altered brain structure and function and is a major risk factor for psychopathology, including reactive attachment disorder (RAD). However, whether changes to white matter microstructural integrity are associated with RAD is unclear. We used diffusion tensor imaging (DTI) to assess group differences in fractional anisotropy (FA) in patients with RAD (n = 25; mean age = 13.2) to typically developing (TD) controls (n = 33; mean age = 13.0). To further interpret differences in FA, additional parameters such as mean diffusivity (MD), axial diffusivity (AD) and radial diffusivity (RD) were assessed. We found that FA values in the body of corpus callosum (CC) and in the projection and thalamic pathways, including the posterior limb of the internal capsule and corona radiata (anterior, posterior, and superior), were significantly higher in the RAD than in the TD group. Additionally, RAD group showed significantly lower RD values in the body of the CC and abovementioned pathways than TD group. Our findings indicate that RAD is associated with altered structure of the CC and projection and thalamic pathways, which may play a role in emotion regulation. The aberrant development of these tracts in RAD may reflect stress-related psychophysiological responses.

Visual Body Part Representation in the Lateral Occipitotemporal Cortex in Children/Adolescents and Adults.

The lateral occipitotemporal cortex (LOTC) that responds to human bodies and body parts has been implicated in social development and neurodevelopmental disorders like autism spectrum disorder (ASD). Neuroimaging studies using a representational similarity analysis (RSA) revealed that body representation in the LOTC of typically developing (TD) adults is categorized into 3 clusters: action effector body parts, noneffector body parts, and face parts. However, its organization of younger people (i.e., children and adolescents) and its association with individual traits remain unclear. In this functional MRI study, TD adults and children/adolescents observed photographs of hands, feet, arms, legs, chests, waists, upper/lower faces, the whole body, and chairs. The univariate analysis showed that fewer child/adolescent participants showed left LOTC activation in response to whole-body images (relative to those of chairs) than adult participants. Contrastingly, the RSA on both age groups revealed a comparable body representation with 3 clusters of body parts in the bilateral LOTC. Hence, this result indicates that, although response to whole-body images can differ, LOTC body part representations for children/ adolescents and adults are highly similar. Furthermore, sensory atypicality is associated with spatial LOTC organization, suggesting the importance of this region for understanding individual difference, which is frequently observed in ASD.

Altered perspective-dependent brain activation while viewing hands and associated imitation difficulties in individuals with autism spectrum disorder.

Background: Individuals with autism spectrum disorder (ASD) appear to have a unique awareness of their own body, which may be associated with difficulties of gestural interaction. In typically developing (TD) individuals, the perception of body parts is processed in various brain regions. For instance, activation of the lateral occipito-temporal cortex (LOTC) is known to depend on perspective (i.e., first- or third-person perspective) and identity (i.e., own vs. another person's body). In the present study, we examined how perspective and identity affect brain activation in individuals with ASD, and how perspective- and identity-dependent brain activation is associated with gestural imitation abilities. Methods: Eighteen young adults with ASD and 18 TD individuals participated in an fMRI study in which the participants observed their own or another person's hands from the first- and third-person perspectives. We examined whether the brain activation associated with perspective and identity was altered in individuals with ASD. Furthermore, we identified the brain regions the activity of which correlated with gestural imitation difficulties in individuals with ASD. Results: In the TD group, the left LOTC was more strongly activated by viewing a hand from the third-person perspective compared with the first-person perspective. This perspective effect in the left LOTC was significantly attenuated in the ASD group. We also observed significant group differences in the perspective effect in the medial prefrontal cortex (mPFC). Correlation analysis revealed that the perspective effect in the inferior parietal lobule (IPL) and cerebellum was associated with the gestural imitation ability in individuals with ASD. Conclusions: Our study suggests that atypical visual self-body recognition in individuals with ASD is associated with an altered perspective effect in the LOTC and mPFC, which are thought to be involved in the physical and core selves, respectively. Furthermore, the gestural imitation difficulty in individuals with ASD might be associated with the altered activation in the IPL and cerebellum, but not in the LOTC. These findings shed light on common and divergent neural mechanisms underlying atypical visual self-body awareness and gestural interaction in ASD.

Increased Anterior Pelvic Angle Characterizes the Gait of Children with Attention Deficit/Hyperactivity Disorder (ADHD).

BACKGROUND: Children with attention deficit/hyperactivity disorder (ADHD) frequently have motor problems. Previous studies have reported that the characteristic gait in children with ADHD is immature and that subjects demonstrate higher levels of variability in gait characteristics for the lower extremities than healthy controls. However, little is known about body movement during gait in children with ADHD. The purpose of this study was to identify the characteristic body movements associated with ADHD symptoms in children with ADHD. METHODS: Using a three-dimensional motion analysis system, we compared gait variables in boys with ADHD (n = 19; mean age, 9.58 years) and boys with typical development (TD) (n = 21; mean age, 10.71 years) to determine the specific gait characteristics related to ADHD symptoms. We assessed spatiotemporal gait variables (i.e. speed, stride length, and cadence), and kinematic gait variables (i.e. angle of pelvis, hip, knee, and ankle) to measure body movement when walking at a self-selected pace. RESULTS: In comparison with the TD group, the ADHD group demonstrated significantly higher values in cadence (t = 3.33, p = 0.002) and anterior pelvic angle (t = 3.08, p = 0.004). In multiple regression analysis, anterior pelvic angle was associated with the ADHD rating scale hyperactive/impulsive scores (ß = 0.62, t = 2.58, p = 0.025), but not other psychiatric symptoms in the ADHD group. CONCLUSIONS: Our results suggest that anterior pelvic angle represents a specific gait variable related to ADHD symptoms. Our kinematic findings could have potential implications for evaluating the body movement in boys with ADHD.

Ethnic differences in COMT genetic effects on striatal grey matter alterations associated with childhood ADHD: A voxel-based morphometry study in a Japanese sample.

OBJECTIVES: Attention deficit/hyperactivity disorder (ADHD) is associated with deficits in the dopaminergic fronto-striatal systems mediating higher-level cognitive functions. We hypothesised that a dopamine-regulating gene, catechol-O-methyltransferase (COMT), would have differential effects on the neural systems of different ethnic samples with ADHD. In Caucasian children with ADHD, the COMT Val-homozygotes have been previously shown to be associated with striatal grey matter volume (GMV) alterations. By using voxel-based morphometry, we examined whether Asian children with ADHD would exhibit a pattern opposite to that found in Caucasian samples. METHODS: Structural brain images were obtained for Japanese children with ADHD (n = 17; mean age = 10.3 years) and typically developing (TD) children (n = 15; mean age = 12.8 years). COMT Val158Met genotype data were also obtained for the ADHD group. RESULTS: Reduced GMV in the left striatum was observed in the ADHD group versus the TD group. This reduced GMV was modulated by COMT polymorphism; Met-carriers exhibited smaller striatal GMV than the Val/Val genotype. CONCLUSIONS: Contrasting with previous findings in Caucasians, the COMT Met allele was associated with striatal GMV alterations in Japanese children with ADHD. These results suggest the existence of ethnic differences in the COMT genetic effect on ADHD-related striatal abnormalities.

[A case report of recurrent lung metastasis after surgery for rectal cancer for which lung radiofrequency ablation therapy and long-term administration of FOLFIRI were effective].

This case concerns a 50-year-old male patient who was diagnosed with rectal cancer without any obvious distal metastasis. The patient underwent abdominoperineal resection of the rectum with lateral lymph node dissection exclusively on the lesion side. An obturator lymph node metastasis was found, and histopathological tests revealed that the patient was in Stage IIIb. FOLFOX4 therapy was performed as postoperative adjuvant chemotherapy, and although temporary discontinuation was necessary due to abscesses in the buttocks, the patient completed 10 courses of chemotherapy. Lung metastasis was diagnosed when a chest computed tomography revealed a nodule 12 mm in diameter immediately above the diaphragm in the left S8. Since the nodule was a solitary tumor, radiofrequency ablation (RFA) therapy was performed, after which postoperative adjuvant chemotherapy was changed to FOLFIRI therapy. No obvious adverse events occurred, making it possible to continue the therapy without withdrawal. The lesions tended to gradually shrink, and during the 50th course of the therapy, the patient converted from partial remission (PR) to complete remission (CR). The FOLFIRI therapy was continued for another 6 months and then suspended for a while. The patient received 62 courses of FOLFIRI therapy in total. No sign of recurrence has been found. This case demonstrates the successful treatment and CR of recurrent lung metastasis after surgery for rectal cancer using lung RFA therapy and long-term administration of FOLFIRI.