Taiji Watari
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View article: Effects of preoperative systemic administration of tranexamic acid alone on postoperative inflammation and pain in total hip arthroplasty: a retrospective cohort study
Effects of preoperative systemic administration of tranexamic acid alone on postoperative inflammation and pain in total hip arthroplasty: a retrospective cohort study 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: 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: 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: 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: 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
We demonstrated the results of preliminary phase 1 prospective observational clinical study that administration of locoregional PRP injections for iliopsoas impingement following THA is both, safe and feasible.
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
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: 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: Relationship between Charlson comorbidity index, early recovery and 2-year mortality in elderly patients undergoing surgical treatment of inter-trochanteric fractures: a retrospective analysis
Relationship between Charlson comorbidity index, early recovery and 2-year mortality in elderly patients undergoing surgical treatment of inter-trochanteric fractures: a retrospective analysis Open
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 dual-center, single-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 dual-center, single-blind, randomized controlled trial Open
Background; An incision for total hip arthroplasty (THA) via the direct anterior approach (DAA) is generally made outside of the space between sartorius and tensor fasciae lataea muscles to prevent lateral femoral cutaneous nerve (LFCN) in…
View article: Does total hip arthroplasty via the direct anterior approach using dual mobility increase leg length discrepancy compared with single mobility?
Does total hip arthroplasty via the direct anterior approach using dual mobility increase leg length discrepancy compared with single mobility? Open
Background Total hip arthroplasty (THA) via the direct anterior approach (DAA) using dual mobility cup (DMC) is considered to effectively prevent postoperative dislocation. However, the dislocation and reduction procedure using a trial imp…
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: Valgus osteotomy for atypical interprosthetic femoral fracture with lateral bowing of the femur
Valgus osteotomy for atypical interprosthetic femoral fracture with lateral bowing of the femur Open
View article: Full-Quantitative Analysis of Cementless Stem Hammering Sound Changes During Total Hip Arthroplasty.
Full-Quantitative Analysis of Cementless Stem Hammering Sound Changes During Total Hip Arthroplasty. Open
Full-quantitative characterization has not been performed to analyze changes in the hammering sound in cementless hip arthroplasty. We analyzed the frequency spectrum of the hammering sound during stem insertion for 20 cases of uncomplicat…
View article: Diagnosis of and Early Revision Surgery for Biological Fixation Failure Due to Proximal-Distal Mismatch of Proximally Coated Tapered Cementless Stem
Diagnosis of and Early Revision Surgery for Biological Fixation Failure Due to Proximal-Distal Mismatch of Proximally Coated Tapered Cementless Stem Open
The diagnosis of and decision-making for early revision surgery to treat failure of biological fixation with a proximally coated cementless stem are challenging. A 73-year-old woman was referred to our hospital with thigh pain 2 years afte…
View article: Medial Versus Conventional Approach for Prevention of Lateral Cutaneous Nerve Injury in Total hip Arthroplasty with Direct Anterior Approach: A Study for Dual-center, Single-blind, Randomized Controlled Trial
Medial Versus Conventional Approach for Prevention of Lateral Cutaneous Nerve Injury in Total hip Arthroplasty with Direct Anterior Approach: A Study for Dual-center, Single-blind, Randomized Controlled Trial Open
Background; Lateral cutaneous nerve (LFCN) injury is one of the complication specific to total hip arthroplasty via the direct anterior approach. Recent anatomical studies have revealed that the LFCN not only courses between the sartorius …
View article: Use of traction table did not increase complications in total hip arthroplasty through direct anterior approach performed by novice surgeon
Use of traction table did not increase complications in total hip arthroplasty through direct anterior approach performed by novice surgeon Open
Purpose: The purpose of this study was to investigate the surgical outcomes of total hip arthroplasty (THA) through direct anterior approach (DAA) performed by beginners by comparing the outcomes after the introduction of DAA-THA between u…
View article: Does a fluoro-assisted direct anterior approach for total hip arthroplasty pose an excessive risk of radiation exposure to the surgeon?
Does a fluoro-assisted direct anterior approach for total hip arthroplasty pose an excessive risk of radiation exposure to the surgeon? Open
Introduction : Intraoperative fluoroscopy can be easily used because patients are placed in the supine position during total hip arthroplasty via direct anterior approach (DAA-THA) to reduce complications. However, the cumulative level of …
View article: Posterior versus direct anterior approach in revision hip arthroplasty using Kerboull-type plate
Posterior versus direct anterior approach in revision hip arthroplasty using Kerboull-type plate Open
Introduction : The purpose of this study was to investigate revision with a Kerboull-type plate through the posterior approach (PA) and direct anterior approach (DAA) and compare the clinical outcome. Subjects and methods : Fifty-four pati…
View article: Objective evaluation for initial stability of highly porous cup without screws in total hip arthroplasty for femoral neck fracture
Objective evaluation for initial stability of highly porous cup without screws in total hip arthroplasty for femoral neck fracture Open
View article: Autograft-prosthesis composite use for a Vancouver type B1 periprosthetic femur fracture with pelvic acetabular component migration after bipolar hemiarthroplasty: A case report
Autograft-prosthesis composite use for a Vancouver type B1 periprosthetic femur fracture with pelvic acetabular component migration after bipolar hemiarthroplasty: A case report Open
View article: Preoperative ultrasound to identify distribution of the lateral femoral cutaneous nerve in total hip arthroplasty using the direct anterior approach
Preoperative ultrasound to identify distribution of the lateral femoral cutaneous nerve in total hip arthroplasty using the direct anterior approach Open
Introduction : Recently, the branching pattern of the lateral femoral cutaneous nerve (LFCN) named Fan type has been reported that LFCN injury cannot be avoided in surgical dissections that use the direct anterior approach to the hip joint…
View article: Posterior versus direct anterior approach in total hip arthroplasty: difference in patient-reported outcomes measured with the Forgotten Joint Score-12
Posterior versus direct anterior approach in total hip arthroplasty: difference in patient-reported outcomes measured with the Forgotten Joint Score-12 Open
Introduction : When the postoperative outcome of primary total hip arthroplasty (THA) was compared with the direct anterior approach (DAA) and the posterior approach (PA), there was no significant difference of the clinical outcome at 6 mo…
View article: Safe and Effective Reduction Technique for Intertrochanteric Fracture with Ipsilateral Below‐Knee Amputated Limb
Safe and Effective Reduction Technique for Intertrochanteric Fracture with Ipsilateral Below‐Knee Amputated Limb Open
The positioning of the patient on the fracture table is critical for the successful reduction and operative fixation of intertrochanteric hip fractures. However, this manipulation is challenging with patients who have undergone amputations…
View article: Kerboull-type plate in a direct anterior approach for severe bone defects at primary total hip arthroplasty: technical note
Kerboull-type plate in a direct anterior approach for severe bone defects at primary total hip arthroplasty: technical note Open
DAA is a true intermuscular approach capable of conserving soft tissue. Since it is applied in a supine position, fluoroscopy can be readily used, and it was very useful to accurately place the plate.
View article: Total hip arthroplasty via the direct anterior approach with a dual mobility cup for displaced femoral neck fracture in patients with a high risk of dislocation
Total hip arthroplasty via the direct anterior approach with a dual mobility cup for displaced femoral neck fracture in patients with a high risk of dislocation Open
THA via the DAA is one of the best treatments for displaced femoral neck fracture with a low risk of dislocation. THA via the DAA with a DMC is a safe and effective treatment for the patients with a high risk of dislocation.
View article: Total Hip Arthroplasty for Implant Rupture after Surgery for Atypical Subtrochanteric Femoral Fracture
Total Hip Arthroplasty for Implant Rupture after Surgery for Atypical Subtrochanteric Femoral Fracture Open
Treatment methods for delayed union and nonunion of atypical femoral fracture are still controversial. Moreover, no treatment method has been established for implant rupture caused by delayed union and nonunion. We encountered a 74-year-ol…