Video Abnormal Behavior Recognition and Trajectory Prediction Based on Lightweight Skeleton Feature Extraction.

Video action recognition based on skeleton nodes is a highlighted issue in the computer vision field. In real application scenarios, the large number of skeleton nodes and behavior occlusion problems between individuals seriously affect recognition speed and accuracy. Therefore, we proposed a lightweight multi-stream feature cross-fusion (L-MSFCF) model to recognize abnormal behaviors such as fighting, vicious kicking, climbing over the wall, et al.

Is the May-Thurner Syndrome a Major Risk Factor for Deep Vein Thrombosis in Total Hip Arthroplasty?

Background: May-Thurner syndrome (MTS) is iliac vein compression syndrome associated with postoperative deep vein thrombosis (DVT) resulting from chronic compression of the left iliac vein against lumbar vertebrae by the overlying right or left common iliac artery. MTS is not well known as a risk factor for DVT after total hip arthroplasty (THA). We evaluated the incidence of DVT after THA and analyzed if the MTS is a risk factor for DVT after THA.

METAL ION RELEASE ACCORDING TO LEG LENGTH DISCREPANCY IN CERAMIC-ON-METAL HIP ARTHROPLASTY.

Objective: The ceramic-on-metal (CoM) bearing has the theoretical advantages over ceramic-on-ceramic (CoC) and metal-on-metal bearings. This study aimed to analyze factors affecting the metal ion release of CoM bearings and compare clinical performance with CoC bearings.

Methods: The 147 patients were divided into 96 patients in group 1 (CoM group) and 51 patients in group 2 (CoC group).

Discovering Homogeneous Groups from Geo-Tagged Videos.

The popularity of intelligent devices with GPS and digital compasses has generated plentiful videos and images with text tags, timestamps, and geo-references. These digital footprints of travelers record their time and spatial movements and have become indispensable information resources, vital in applications such as how groups of videographers behave and in future-movement prediction. In this paper, first we propose algorithms to discover homogeneous groups from geo-tagged videos with view directions.

EEG Emotion Recognition Applied to the Effect Analysis of Music on Emotion Changes in Psychological Healthcare.

Music therapy is increasingly being used to promote physical health. Emotion semantic recognition is more objective and provides direct awareness of the real emotional state based on electroencephalogram (EEG) signals. Therefore, we proposed a music therapy method to carry out emotion semantic matching between the EEG signal and music audio signal, which can improve the reliability of emotional judgments, and, furthermore, deeply mine the potential influence correlations between music and emotions.

Differences in Acetabular Morphology Related to Sex and Side in South Korean Population.

Background: The normal references for acetabular parameters are important for the diagnosis of hip diseases and planning of total hip arthroplasty. There are wide interindividual differences in acetabular morphology in the normal population, and little is known about differences in acetabular morphology in the average South Korean population. The purpose of this study was to evaluate side and sex differences in acetabular morphology in the South Korean population.

Identification of Stem Cell Related Gene Expression from the Osteosarcoma Cell Core Side.

Osteosarcoma is the most frequent primary malignant bone tumor with higher incidences in children and adolescents. Despite clinical evolutions, patients with osteosacoma have had a poor prognosis. There has been increasing evidence that cancer is a stem cell disease.

Preoperative Vitamin D Deficiency is Associated with Postoperative Functional Recovery and Complications after Hip Fracture Surgery.

Background: Low concentrations of vitamin D are considered one of the risk factors for hip fracture and are associated with worse outcomes. The purpose of this retrospective study was to compare vitamin D deficient group and vitamin D sufficient group and assess the association preoperative vitamin D deficiency and postoperative walking ability after hip fracture surgery.

Methods: Between January 2014 and January 2020, 1,029 elderly patients with hip fracture (243 in men and 785 in women) were measured preoperative serum 25-hydroxy-vitamin D3 levels.

Performance-based physical function correlates with walking speed and distance at 3 months post unilateral total knee arthroplasty.

Background: After total knee arthroplasty (TKA), walking speed and distance are main concerns of patients.

Research Question: Which physical functions affect walking speed and distance after TKA?

Methods: Cross-sectional data from 149 patients who underwent unilateral primary TKA and completed performance-based physical function tests. Instrumental gait evaluation for spatiotemporal parameters, isometric knee extensor and flexor strength of both knees, 6-minute walk test (6MWT), timed up-and-go (TUG) test, timed stair climbing test (SCT), and knee flexion and extension range of motion (ROM) of surgical knee were examined.

Influence of Comorbidities on Short-Term Functional Outcomes After Unilateral Total Knee Arthroplasty.

Objective: The aim of the study was to determine the effect of comorbidities on physical function and quality of life of patients at 3 mos after total knee arthroplasty.

Design: Data from 140 patients who underwent a primary unilateral total knee arthroplasty were examined retrospectively. Comorbidities were osteoporosis, presarcopenia, degenerative spine disease, diabetes, and hypertension.

Effectiveness of a Home-Based Fragility Fracture Integrated Rehabilitation Management (FIRM) Program in Patients Surgically Treated for Hip Fractures.

Background: The purpose of this study was to investigate the effectiveness of a home-based fragility fracture integrated rehabilitation management (H-FIRM) program following an inpatient FIRM (I-FIRM) program in patients surgically treated for hip fracture.

Methods: This nonrandomized controlled trial included 32 patients who underwent hip surgery for a fragility hip fracture. The patients were divided into two groups: a prospective intervention group ( = 16) and a historical control group ( = 16).

Unique Form of Atypical Subtrochanteric Femoral Fracture at the Medial Cortex: A Report of 3 Cases.

Case: Three women with unique subtrochanteric femoral fracture occurring at the medial cortex of the femur are presented. One patient had been on drug holiday for the past 2 years after 3 years of risedronate use; the other patients had been taking alendronate for osteoporosis for 4 years and 20 years without drug holiday.

Conclusion: The fractures met all major criteria for the revised case definition of atypical femoral fracture (AFF) provided by the American Society of Bone and Mineral Research task force except for the location.

Physical Performance Correlates with Self-Reported Physical Function and Quality of Life in Patients at 3 Months after Total Knee Arthroplasty.

Background: Although total knee arthroplasty (TKA) is an effective treatment for knee osteoarthritis, assessment of postoperative outcomes remains unclear. This study aimed to identify postoperative physical performance factors that are correlated with self-reported physical function and quality of life (QoL) at 3 months after unilateral TKA.

Methods: In total, 158 patients who underwent unilateral primary TKA completed performance-based physical function tests at 3 months after surgery, including Stair Climbing Tests (SCT), 6-Minute Walk Tests (6MWT), Timed Up and Go tests (TUG), and instrumental gait analysis.

Preoperative physical factors that predict stair-climbing ability at one month after total knee arthroplasty.

Objective: To identify preoperative physical performance factors that predict stair-climbing ability at 1 month after total knee arthroplasty.

Design: Prospective cohort study.

Setting: University-based rehabilitation centre.

Functional Outcomes After Critical Pathway for Inpatient Rehabilitation of Total Knee Arthroplasty.

Objective: To investigate functional outcomes after the application of a critical pathway for inpatient rehabilitation of total knee arthroplasty (TKA).

Methods: A total of 184 patients (57 males and 127 females; average age, 71.5±5.

Bilateral Quadriceps Muscle Strength and Pain Correlate With Gait Speed and Gait Endurance Early After Unilateral Total Knee Arthroplasty: A Cross-sectional Study.

Objective: The aim of this study was to determine the correlations between objective performance-based physical function, self-reported physical function, quality of life, and gait function at 1 mo after unilateral total knee arthroplasty.

Design: Cross-sectional data from 195 patients who underwent unilateral primary total knee arthroplasty were analyzed. The isometric knee extensor and flexor strength of both knees, gait parameters, 6-min walk test, timed up-and-go test, timed stair-climbing test, knee flexion and extension range of motion of surgical knee, Western Ontario McMaster Universities Osteoarthritis Index pain, stiffness, and functional levels, EuroQol five-dimensions questionnaire, and visual analog scale for knee pain were assessed.

Comorbidities in Patients With End-Stage Knee OA: Prevalence and Effect on Physical Function.

Objective: To investigate the prevalence of comorbidities and their effect on physical function, quality of life (QOL), and pain, in patients with end-stage knee osteoarthritis (OA).

Design: A cross-sectional study.

Setting: A rehabilitation facility at university hospital.

Improvement of Osteoporosis Medication after Multimodal Intervention in Patients with Hip Fracture: Prospective Multicenter Study.

Background: The authors had earlier conducted a retrospective cohort study from 2008 to 2011 in Jeju Island, among 945 hip fracture patients above 50 years of age. Of these 945 patients, 344 patients (36.4%) underwent a bone mineral density test and 218 patients (23.

Surgical outcome of intramedullary nailing in patients with complete atypical femoral fracture: A multicenter retrospective study.

Background: Management of atypical femoral fracture on bisphosphonate therapy still remains controversy and is reported high rate of complications. The aim of this study was to evaluate the outcome of intramedullary nailing in patients with atypical femoral fracture who took bisphosphonate more than one year through the multicenter retrospective study.

Methods: We gathered 75 atypical femoral fractures from seven institutions between 2009 and 2014.

Wiring technique for lesser trochanter fixation in proximal IM nailing of unstable intertrochanteric fractures: A modified candy-package wiring technique.

Introduction: The purpose of this study was to introduce a new surgical technique, that involves modified Candy-package wiring followed by IM nailing fixation and to determine the clinical and radiological results obtained in patients with unstable intertrochanteric fractures with a lesser trochanter fragment.

Materials And Methods: This study included 22 patients who were undergone proximal IM nailing with lesser trochanter wiring between January 2014 to June 2015. All patients were treated with minimally invasive technique of candy-package wiring for lesser trochanter fragments.

Pre-treatment of titanium alloy with platelet-rich plasma enhances human osteoblast responses.

Osseointegration, the histological direct bone-to-implant contact, is the ultimate goal of implant healing and the first prerequisite for long-term success of endosseous implants. It is well-known that metal implants with rough surfaces achieve better osseointegration than those with smooth surfaces . The implantation of metal materials into bone is always accompanied by bleeding.