Transportation mode detection (TMD) is an important research area in human activity recognition. It can improve the mobility and accessibility of people by providing a better understanding of their ...mobility patterns, thereby enhancing their quality of life and social inclusion. Although previous studies of TMD for people without mobility disabilities exhibited, the performance of TMD models on new users and periods was limited. This issue would be more important for people with mobility disabilities. This study investigated the negative impact of user and period differences on the performance of TMD for wheelchair users (wTMD) and suggests a method to address these challenges. Our main findings are (1) user and period differences degraded the wTMD performance from 94.28% to 59.32%; (2) the multi-DenseNet with a soft voting ensemble provided an 76.49% accuracy to data from different users and period. We expect that our understanding of wTMD will aid in the design of more generalized wTMD models.
Category:
Trauma
Introduction/Purpose:
We compared the radiographic results and clinical outcomes of patients with displaced, intra-articular calcaneal fractures treated via the extended sinus tarsi ...approach (ESTA) and the extended lateral approach (ELA).
Methods:
We retrospectively studied the utility of the ELA (46 patients, 52 feet) and the ESTA (56 patients, 64 feet) in patients operated upon between January 2009 and September 2014. We evaluated pre- and post-operative X-rays and computed tomography (CT) data. Pain, patient-reported functional outcomes, patient satisfaction, and postoperative complications, were investigated at the three year follow-up.
Results:
Neither the postoperative nor three year follow-up Böhler angles, nor the calcaneal width, differed significantly between the two groups (both p > 0.05). The maximum step-off of the posterior facet on the three month CT follow-up of the ESTA was significantly less than that of the ELA (p < 0.05). We found no significant between-group differences in terms of postoperative translation (p = 0.232) or angulation of the sustentacular fragment (p = 0.132), three year follow-up mean visual analog scale pain score at rest (p = 0.641) or during weight-bearing (p = 0.525), Foot Function Index (FFI) (p = 0.712), and self-reported satisfaction (p = 0.823). The ELA experienced significantly more wound complications (p = 0.039) and nonunions (p = 0.014) than the ESTA.
Conclusion:
Compared with the ELA, the ESTA afforded comparable radiological results and clinical outcomes, associated with a reduced operative time and fewer wound complications and nonunions. We suggest that the ESTA is an efficient surgical option when treating displaced, intra-articular calcaneal fractures.
Dorsal Suspension for Morton’s Neuroma Chan, Kang; Jae-Hwang, Song; Ahn, Ki jun ...
Foot & ankle orthopaedics,
09/2018, Letnik:
3, Številka:
3
Journal Article
Recenzirano
Odprti dostop
Category: Midfoot/Forefoot Introduction/Purpose: We performed a dorsal suspension of neuroma using the dorsal transverse ligament for the treatment of Morton’s neuroma. The purpose of this study was ...to investigate and compare the functional outcomes and complications of dorsal suspension with those of neurectomy. Methods: We conducted a retrospective study of thirty-eight (40 feet, 40 neuromas) and thirty-six (36 feet, 36 neuromas) patients who underwent dorsal suspension and neurectomy, respectively. At twenty-four month follow-up, the visual analog scale was used to evaluate pain, and the Foot and Ankle Ability Measure (FAAM) was used to investigate patient-reported function of activities of daily living and sports. Satisfaction analysis was performed using the Coughlin scale, and postoperative complications were also evaluated. Results: Both groups reported significant pain relief, and there were no significant differences between the groups with respect to postoperative pain (dorsal suspension group, mean, 12.0; neurectomy group, mean, 25.8; p = .99). The postoperative FAAM outcomes showed no significant between-group differences in activities of daily living (dorsal suspension group, mean, 89.5, neurectomy group, mean, 77.2; p = .22) or sports subscales (dorsal suspension group, mean, 85.5; neurectomy group, mean, 69.4; p = .97). Satisfaction analysis showed ‘excellent’ and ‘good’ results in the dorsal suspension and neurectomy groups (95% and 77.7%, respectively). Complications reported in the dorsal suspension and neurectomy groups were numbness (5% vs 61.1%, respectively, p < .05) and paresthesia (5% vs 33.3%, respectively, p < .05). Conclusion: Compared with neurectomy, dorsal suspension provided comparable pain relief and improvement in terms of functional outcomes, as measured by the FAAM. With its lower rate of complication and high satisfaction, dorsal suspension can be another operative option for the treatment of Morton’s neuroma.
Category: Basic Sciences/Biologics Introduction/Purpose: There have only been a few studies on optimal concentrations, doses, and volume of injection material in the regional nerve block for lower ...extremity operations. The purpose of this study was to evaluate the efficacy of different concentrations of ropivacaine with respect to anesthetic time, intraoperative, postoperative pain, and patient’s satisfaction. Methods: A total of 339 patients underwent lower extremity surgery under ultrasound-guided nerve block (combined femoral and sciatic nerve block) at a single institution between March 2016 and February 2017 and were randomly assigned to three groups: Group A (0.5% 42 ml), B (0.6%, 30 ml), and C (0.75%, 30 ml). The interval between nerve block procedure and onset of the complete anesthetic effect (complete anesthetic time) was investigated. The degrees of intraoperative pain (during the first 10 minutes of the surgical procedure), and postoperative pain (6, 12 hours after operation) were evaluated using a visual analog scale (VAS) score. Patient’s satisfaction (0~10) was investigated 12 hours after the operation. To evaluate the efficacy in accordance with the concentration under the same dose and same volume, group A and B were compared with group C respectively. Results: There were 108, 118, and 113, in groups A, B, and C, respectively. The complete anesthetic times were 78.5, 76.4, and 58.6 minutes, respectively. The intraoperative VAS scores were 2.04, 0.62, and 0.24; and the postoperative VAS scores (6hours / 12hours) were 2.41 / 4.08, 0.26 / 1.24, and 0.38 / 1/53. The patient’s satisfactory scores were 8.53, 9.38, and 9.4 respectively. Compared with group C, group A showed significantly longer complete anesthetic time (p<0.05) and higher intra, postoperative VAS scores (all p<.05). Group B showed longer complete anesthetic time (p<0.05), but no significant difference of intra, postoperative VAS scores (all p>.05). Patient’s satisfactory scores in both group A and B were similar to group C(p>.05, p>.05). There were no adverse reactions in all groups. Conclusion: Ropivacaine 0.6% as well as 0.75% are safe and effective anesthetics under the same volume (30 ml) for regional nerve block of the lower extremity. However, taking into account of the longer complete anesthetic time, the operation start time must be adjusted.
Category: Other Introduction/Purpose: Full weightbearing(WB) three dimensional computed tomography(3D CT) is an excellent imaging tool. However, due to its high cost, it is only used in a few ...hospitals. We evaluated the usefulness and cost-effectiveness of axial loading(AL) 3D CT by comparing bony alignments with standing radiographs, and assessed reproducibility according to the degree of AL. Methods: Eighty patients(156 feet), who underwent standing radiographs and 3D CT with an AL device from January 2016 to May 2017, were investigated. According to the degree of AL(AL force×100/body weight), the patients were randomly assigned to three groups: Group A(30-50%; n=21, 40 feet), Group B(50-70%; n=32, 63 feet), and Group C(70-100%; n=27, 53 feet). The following angles were measured three times by two orthopedists: hallux valgus(HVA), 1st-2nd intermetatarsal(IMA1-2), and talo-navicular coverage(TNCA), calcaneal pitch(CPA), talo-1st metatarsal(T1MA), and talo-calcaneal angle(TCA). Agreements between the two imaging methods were analyzed and compared according to the degree of axial loading in each group. Results: Intra- and interobserver reliability was excellent (>0.75). In Group A(30-50% AL), all of the angles except HVA and IMA1-2 differed (p<.05). In Group B(50-70%), TNCA (p= .023), T1MA (p= .017), and TCA (p=.035) differed. In Group C(70-100%), none of the angles differed between the two imaging methods (p> .05). Higher agreement between the two imaging methods was realized when 70% or more(>70%) AL was applied. Conclusion: AL 3D CT with >70% axial load has full WB effects and can be substituted for expensive full WB 3D CT.
Transportation mode detection (TMD) has been proposed as a computational technology to obtain mobility information. However, previous TMD studies mainly focused on improving detection performance and ...have not investigated the social implications of mobility information. This is the first study to use TMD to predict the life satisfaction of wheelchair users. Our goal is to develop TMD for wheelchair users (wTMD) utilizing smartphone location data and apply it to determine how transportation behaviors affect the life satisfaction of wheelchair users. First, we propose a wTMD technology by collecting a new dataset from wheelchair and non-wheelchair users. Second, we conduct regression analyses on existing in-the-wild dataset of wheelchair users. The result shows that the portion of subways in an individual's travel time is directly connected to wheelchair users' life satisfaction in Seoul, South Korea. We hope our findings are a good example for future social science studies and ultimately help to design wheelchair-friendly urban planning and accessibility.
User-Independent Motion and Location Analysis for Sussex-Huawei Locomotion Data Hwang, Sungjin; Cho, Youngwug; Kim, Kwanguk
Adjunct Proceedings of the 2023 ACM International Joint Conference on Pervasive and Ubiquitous Computing & the 2023 ACM International Symposium on Wearable Computing,
10/2023
Conference Proceeding
Transportation mode detection (TMD) is a context-aware computing technology with significant potential in several applications. However, the development of TMD technologies for real-world scenarios ...remains challenging, including user-independent evaluations and multimodal analyses. In this study, our team (HYU-CSE) suggested a TMD model as part of the Sussex-Huawei Locomotion (SHL) recognition challenge, and we used the SHL motion and location data. The proposed TMD model was based on the DenseNet architecture, and post-processing using voting schemes was applied to refine the detection performance. The results suggested that the proposed method achieved 94.13% of an F1 score with user-independent analysis. We hope that our study will ultimately help in the design of better TMD applications.
Category:
Basic Sciences/Biologics
Introduction/Purpose:
There have only been a few studies on optimal concentrations, doses, and volume of injection material in the regional nerve block for lower ...extremity operations. The purpose of this study was to evaluate the efficacy of different concentrations of ropivacaine with respect to anesthetic time, intraoperative, postoperative pain, and patient’s satisfaction.
Methods:
A total of 339 patients underwent lower extremity surgery under ultrasound-guided nerve block (combined femoral and sciatic nerve block) at a single institution between March 2016 and February 2017 and were randomly assigned to three groups: Group A (0.5% 42 ml), B (0.6%, 30 ml), and C (0.75%, 30 ml). The interval between nerve block procedure and onset of the complete anesthetic effect (complete anesthetic time) was investigated. The degrees of intraoperative pain (during the first 10 minutes of the surgical procedure), and postoperative pain (6, 12 hours after operation) were evaluated using a visual analog scale (VAS) score. Patient’s satisfaction (0~10) was investigated 12 hours after the operation. To evaluate the efficacy in accordance with the concentration under the same dose and same volume, group A and B were compared with group C respectively.
Results:
There were 108, 118, and 113, in groups A, B, and C, respectively. The complete anesthetic times were 78.5, 76.4, and 58.6 minutes, respectively. The intraoperative VAS scores were 2.04, 0.62, and 0.24; and the postoperative VAS scores (6hours / 12hours) were 2.41 / 4.08, 0.26 / 1.24, and 0.38 / 1/53. The patient’s satisfactory scores were 8.53, 9.38, and 9.4 respectively. Compared with group C, group A showed significantly longer complete anesthetic time (p<0.05) and higher intra, postoperative VAS scores (all p<.05). Group B showed longer complete anesthetic time (p<0.05), but no significant difference of intra, postoperative VAS scores (all p>.05). Patient’s satisfactory scores in both group A and B were similar to group C(p>.05, p>.05). There were no adverse reactions in all groups.
Conclusion:
Ropivacaine 0.6% as well as 0.75% are safe and effective anesthetics under the same volume (30 ml) for regional nerve block of the lower extremity. However, taking into account of the longer complete anesthetic time, the operation start time must be adjusted.
Dorsal Suspension for Morton’s Neuroma Kang, Chan; Song, Jae-Hwang; Ahn, Ki jun ...
Foot & ankle orthopaedics,
09/2018, Letnik:
3, Številka:
3
Journal Article
Recenzirano
Odprti dostop
Category:
Midfoot/Forefoot
Introduction/Purpose:
We performed a dorsal suspension of neuroma using the dorsal transverse ligament for the treatment of Morton’s neuroma. The purpose of this study was ...to investigate and compare the functional outcomes and complications of dorsal suspension with those of neurectomy.
Methods:
We conducted a retrospective study of thirty-eight (40 feet, 40 neuromas) and thirty-six (36 feet, 36 neuromas) patients who underwent dorsal suspension and neurectomy, respectively. At twenty-four month follow-up, the visual analog scale was used to evaluate pain, and the Foot and Ankle Ability Measure (FAAM) was used to investigate patient-reported function of activities of daily living and sports. Satisfaction analysis was performed using the Coughlin scale, and postoperative complications were also evaluated.
Results:
Both groups reported significant pain relief, and there were no significant differences between the groups with respect to postoperative pain (dorsal suspension group, mean, 12.0; neurectomy group, mean, 25.8; p = .99). The postoperative FAAM outcomes showed no significant between-group differences in activities of daily living (dorsal suspension group, mean, 89.5, neurectomy group, mean, 77.2; p = .22) or sports subscales (dorsal suspension group, mean, 85.5; neurectomy group, mean, 69.4; p = .97). Satisfaction analysis showed ‘excellent’ and ‘good’ results in the dorsal suspension and neurectomy groups (95% and 77.7%, respectively). Complications reported in the dorsal suspension and neurectomy groups were numbness (5% vs 61.1%, respectively, p < .05) and paresthesia (5% vs 33.3%, respectively, p < .05).
Conclusion:
Compared with neurectomy, dorsal suspension provided comparable pain relief and improvement in terms of functional outcomes, as measured by the FAAM. With its lower rate of complication and high satisfaction, dorsal suspension can be another operative option for the treatment of Morton’s neuroma.
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