Yasuhiro Homma
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View article: Microbial contamination risks and clinical safety in platelet-rich plasma therapy and evaluation of rapid microbial detection methods
Microbial contamination risks and clinical safety in platelet-rich plasma therapy and evaluation of rapid microbial detection methods Open
Introduction: Platelet-rich plasma (PRP) is widely used for pain relief, wound healing, and so on. However, recent reports have documented cases of infections occurring after PRP therapy. In this study, we aimed to examine potential microb…
View article: Association of Constipation and Geriatric Depressive Symptoms: Cross-Sectional Analysis Using Baseline Data from the JUSTICE-TOKYO Prospective Cohort Study
Association of Constipation and Geriatric Depressive Symptoms: Cross-Sectional Analysis Using Baseline Data from the JUSTICE-TOKYO Prospective Cohort Study Open
Objective: To clarify the relationship between constipation and depressive symptoms among the elderly. Methods: This single-center, cross-sectional study was performed using baseline data obtained at the time of enrollment in the prospecti…
View article: Predicting iliac bone marrow harvest success in osteonecrosis of femoral head using preoperative bone scintigraphy uptake: a cross sectional study
Predicting iliac bone marrow harvest success in osteonecrosis of femoral head using preoperative bone scintigraphy uptake: a cross sectional study Open
View article: Comparison of blood metal ion levels in scoliosis patients following instrumented spinal fusion with cobalt-chromium and titanium alloy rods
Comparison of blood metal ion levels in scoliosis patients following instrumented spinal fusion with cobalt-chromium and titanium alloy rods Open
View article: Therapeutic strategies for periprosthetic femoral fractures based on three classification systems
Therapeutic strategies for periprosthetic femoral fractures based on three classification systems Open
Purpose: The standardization of treatment strategies for periprosthetic femoral fractures is a critical objective for orthopedic surgeons. This review outlines detailed therapeutic approaches based on three classification systems: the Baba…
View article: Optimizing implant positioning in total hip arthroplasty via the direct anterior approach: The role and technique of conventional traction table and fluoroscopy
Optimizing implant positioning in total hip arthroplasty via the direct anterior approach: The role and technique of conventional traction table and fluoroscopy Open
View article: Global Trends in the Value of Author Order Across Medical Publications: A Cross‐Sectional Bibliometric Study
Global Trends in the Value of Author Order Across Medical Publications: A Cross‐Sectional Bibliometric Study Open
This study aimed to analyse the value of author order across countries, within the ‘Medicine General Internal’ and ‘Surgery’ fields, to enhance transparency and fairness in academic evaluations, particularly in international collaborative …
View article: Direct anterior total hip arthroplasty with dual mobility cup for femoral neck fractures in dementia patients
Direct anterior total hip arthroplasty with dual mobility cup for femoral neck fractures in dementia patients Open
Background : Dementia patients with femoral neck fractures (FNFs) are unable to understand their dislocated limb positioning, which may impair rehabilitation and result in poorer functional recovery. Recently, good clinical results have be…
View article: Subtrochanteric shortening osteotomy in adult sickle cell disease patients with cemented total hip arthroplasty for hip deformities secondary to childhood osteonecrosis: is healing a challenge?
Subtrochanteric shortening osteotomy in adult sickle cell disease patients with cemented total hip arthroplasty for hip deformities secondary to childhood osteonecrosis: is healing a challenge? Open
Purpose Hip deformity is frequent after childhood osteonecrosis in patients with sickle cell disease (SCD). When they are adults, they present a challenge as candidates for total hip arthroplasty (THA) because of abnormal bone development,…
View article: What is the clinical utility of acoustic and vibrational analyses in uncemented total hip arthroplasty?
What is the clinical utility of acoustic and vibrational analyses in uncemented total hip arthroplasty? Open
View article: Hip fracture and cancer: descriptive epidemiological study demonstrating a paradigm shift in common orthopedic trauma
Hip fracture and cancer: descriptive epidemiological study demonstrating a paradigm shift in common orthopedic trauma Open
Purpose: Despite the increase both in patients with cancer and those with proximal femoral fractures (PFFs), details of the characteristics of non-pathological PFFs in patients undergoing cancer treatment are unknown. The purpose of this r…
View article: What are the most difficult steps in total hip arthroplasty for early-career surgeons and how can future technology help most? A survey of the American Association of Hip and Knee Surgeons Young Arthroplasty Group
What are the most difficult steps in total hip arthroplasty for early-career surgeons and how can future technology help most? A survey of the American Association of Hip and Knee Surgeons Young Arthroplasty Group Open
Purpose: While technology in total hip arthroplasty (THA) is generally developed by experienced surgeons, particular difficulties in surgical steps and technical demands experienced by early-career surgeons remain important. This study inv…
View article: Autologous concentrated bone marrow injection for precollapse osteonecrosis of the femoral head concurrent with contralateral total hip arthroplasty: protocol for a clinical trial
Autologous concentrated bone marrow injection for precollapse osteonecrosis of the femoral head concurrent with contralateral total hip arthroplasty: protocol for a clinical trial Open
Introduction The femoral head contralateral to the collapsed femoral head requiring total hip arthroplasty (THA) often manifests in the precollapse stage of osteonecrosis of the femoral head (ONFH). It is not yet demonstrated how autologou…
View article: Mesenchymal Stem Cell Therapy for Bone Repair of Human Hip Osteonecrosis with Bilateral Match-Control Evaluation: Impact of Tissue Source, Cell Count, Disease Stage, and Volume Size on 908 Hips
Mesenchymal Stem Cell Therapy for Bone Repair of Human Hip Osteonecrosis with Bilateral Match-Control Evaluation: Impact of Tissue Source, Cell Count, Disease Stage, and Volume Size on 908 Hips Open
We investigated the impact of mesenchymal stem cell (MSC) therapy on treating bilateral human hip osteonecrosis, analyzing 908 cases. This study assesses factors such as tissue source and cell count, comparing core decompression with vario…
View article: Navigating the learning curve: assessing caseload and comparing outcomes before and after the learning curve of computer-navigated total hip arthroplasty
Navigating the learning curve: assessing caseload and comparing outcomes before and after the learning curve of computer-navigated total hip arthroplasty Open
Purpose Computer-navigated (CN) total hip arthroplasty (THA) offers improved acetabular component placement and radiographic outcomes, but inconsistent assessment methods of its learning curves render the evaluation of adopting a novel pla…
View article: Differences in acoustic parameters of hammering sounds between successful and unsuccessful initial cementless cup press-fit fixation in total hip arthroplasty
Differences in acoustic parameters of hammering sounds between successful and unsuccessful initial cementless cup press-fit fixation in total hip arthroplasty Open
Aims It is important to analyze objectively the hammering sound in cup press-fit technique in total hip arthroplasty (THA) in order to better understand the change of the sound during impaction. We hypothesized that a specific characterist…
View article: Predictive value of Charlson comorbidity index and cofactors on 2-year mortality in older patients with intertrochanteric fractures: a retrospective analysis
Predictive value of Charlson comorbidity index and cofactors on 2-year mortality in older patients with intertrochanteric fractures: a retrospective analysis Open
The aim of this study was to evaluate the role of Charlson comorbidities index (CCI) and cofactors on 2-year mortality in older patients with intertrochanteric fractures. 60 cases with unilateral intertrochanteric fracture were retrospecti…
View article: The loneliness of the local orthopaedic surgeon in disaster zones
The loneliness of the local orthopaedic surgeon in disaster zones Open
View article: Total hip arthroplasty via the direct anterior approach using a conventional traction table and fluoroscopy: a safe and cost-effective technique
Total hip arthroplasty via the direct anterior approach using a conventional traction table and fluoroscopy: a safe and cost-effective technique Open
Introduction : Precise implant positioning during total hip arthroplasty (THA) is an important factor affecting dislocation rate and long-term implant survival. Although a special carbon fiber traction table for THA improves the accuracy o…
View article: Safety and feasibility of locoregional platelet-rich plasma injection for iliopsoas impingement after total hip arthroplasty: A phase 1 prospective observational study
Safety and feasibility of locoregional platelet-rich plasma injection for iliopsoas impingement after total hip arthroplasty: A phase 1 prospective observational study Open
View article: Blood cobalt levels elevated with rod fracture following posterior spinal fusion in scoliosis: A report of two cases
Blood cobalt levels elevated with rod fracture following posterior spinal fusion in scoliosis: A report of two cases Open
Elevated blood metal ion levels and the accumulation of metal debris in peri-implant tissues have been reported after metal-on-metal total hip arthroplasty and total disc replacement. However, little is known about the relationship between…
View article: Patients With Shorter Stature Exhibit Minimal Hammering Sound Changes During Cementless Stem Insertion in Total Hip Arthroplasty
Patients With Shorter Stature Exhibit Minimal Hammering Sound Changes During Cementless Stem Insertion in Total Hip Arthroplasty Open
Patients with smaller stature showed the least change in the hammering sound during stem insertion. Understanding the acoustic characteristics of hammering sound alteration during cementless stem insertion may aid in the achievement of opt…
View article: Validation of a preoperative formula to estimate postoperative pelvic sagittal alignment and mobility before performing total hip arthroplasty for patients with hip osteoarthritis
Validation of a preoperative formula to estimate postoperative pelvic sagittal alignment and mobility before performing total hip arthroplasty for patients with hip osteoarthritis Open
Background Although it is important to consider pelvic alignment and mobility in the standing and sitting positions before THA, it is not known how to preoperatively predict individual postoperative pelvic alignment and mobility. The purpo…
View article: The association between research funding status and clinical research papers’ citation impact in Japan: A cross-sectional bibliometric study
The association between research funding status and clinical research papers’ citation impact in Japan: A cross-sectional bibliometric study Open
Introduction Studies have not sufficiently clarified the differences in citation impact between funded and non-funded clinical research papers. Hence, this study seeks to evaluate the relation between research funding status and clinical r…
View article: Relationship between labral length and symptoms in patients with acetabular dysplasia before rotational acetabular osteotomy
Relationship between labral length and symptoms in patients with acetabular dysplasia before rotational acetabular osteotomy Open
The aim of this study was to investigate the relationship between acetabular labral length and symptoms in patients with acetabular dysplasia. In a retrospective medical record review, 218 patients with acetabular dysplasia who had undergo…
View article: Hip arthroplasty for unstable femoral trochanteric fractures using the direct anterior approach
Hip arthroplasty for unstable femoral trochanteric fractures using the direct anterior approach Open
Background: This study aims to investigate the clinical outcome of unstable femoral trochanteric fractures treated by hip arthroplasty through direct anterior approach (DAA). Methods: The subjects were patients with unstable femoral trocha…
View article: Lateral versus conventional fasciotomy for prevention of lateral femoral cutaneous nerve injury in total hip arthroplasty with direct anterior approach: a study protocol for a dual-center, double-blind, randomized controlled trial
Lateral versus conventional fasciotomy for prevention of lateral femoral cutaneous nerve injury in total hip arthroplasty with direct anterior approach: a study protocol for a dual-center, double-blind, randomized controlled trial Open
View article: Artificial intelligence for distinguishment of hammering sound in total hip arthroplasty
Artificial intelligence for distinguishment of hammering sound in total hip arthroplasty Open
View article: Erratum to "Diagnosis of and Early Revision Surgery for Biological Fixation Failure Due to Proximal-Distal Mismatch of Proximally Coated Tapered Cementless Stem" [Arthroplasty Today 6 (2020) 914-918]
Erratum to "Diagnosis of and Early Revision Surgery for Biological Fixation Failure Due to Proximal-Distal Mismatch of Proximally Coated Tapered Cementless Stem" [Arthroplasty Today 6 (2020) 914-918] Open
View article: Basic points to consider regarding the preparation of extracellular vesicles and their clinical applications in Japan
Basic points to consider regarding the preparation of extracellular vesicles and their clinical applications in Japan Open
In recent years, extracellular vesicles (EVs) have attracted attention as a new therapeutic tool. In Europe, the United States, and Asia, there is an accelerating trend of moving beyond basic research on clinical trials. However, treatment…