Naohisa Miyakoshi
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View article: The Effect of Knee Extension Limitation on Lumbar Intervertebral Disc Compression Force During Walking: A 3D Musculoskeletal Analysis
The Effect of Knee Extension Limitation on Lumbar Intervertebral Disc Compression Force During Walking: A 3D Musculoskeletal Analysis Open
Knee–spine interactions suggest that limited knee extension may elevate spinal loading during ambulation in older adults. This study aimed to estimate lumbar intervertebral disc loads during walking in patients with knee extension limitati…
View article: Optimal cutoff value of diaphragm thickening fraction for predicting high respiratory effort in mechanically ventilated patients
Optimal cutoff value of diaphragm thickening fraction for predicting high respiratory effort in mechanically ventilated patients Open
DTF correlates with P0.1 in mechanically ventilated patients. A 35.7 % DTF cutoff accurately identifies potentially injurious respiratory effort.
View article: Preoperative treatment and postoperative outcomes in osteoporotic patients with vertebral fractures: a longitudinal database study
Preoperative treatment and postoperative outcomes in osteoporotic patients with vertebral fractures: a longitudinal database study Open
Introduction This study aimed to investigate perioperative treatment and postoperative outcomes in osteoporotic patients with vertebral fractures (VFs), categorized by the type of spine surgery. Materials and methods Patients aged ≥ 40, di…
View article: Temporary Relative Lumbar Spinal Stenosis After Skip Partial Laminectomies in an Elderly Woman: A Case Report
Temporary Relative Lumbar Spinal Stenosis After Skip Partial Laminectomies in an Elderly Woman: A Case Report Open
Lumbar spinal stenosis is common and mostly caused by age-related spine degeneration. When conservative treatment is not successful, surgery is typically performed. We encountered a 79-year-old female patient who developed spinal canal ste…
View article: Condition Changes Before and After the Coronavirus Disease 2019 Pandemic in Adolescent Athletes and Development of a Non-Contact Medical Checkup Application
Condition Changes Before and After the Coronavirus Disease 2019 Pandemic in Adolescent Athletes and Development of a Non-Contact Medical Checkup Application Open
During the coronavirus 2019 pandemic, sports activities were restricted, raising concerns about their impact on the physical condition of adolescent athletes, which remained largely unquantified. This study was designed with two primary ob…
View article: Detailed Analysis of Prognostic Factors in Patients with Soft Tissue Sarcoma Undergoing Unplanned Excision
Detailed Analysis of Prognostic Factors in Patients with Soft Tissue Sarcoma Undergoing Unplanned Excision Open
Objectives: Unplanned excision (UE) of soft tissue sarcoma (STS) impacts recurrence and prognosis, influenced by various factors. However, few studies have thoroughly analyzed these patients. This study aimed to comprehensively evaluate pr…
View article: Current status of patients with hip fracture in Japan: A nationwide survey
Current status of patients with hip fracture in Japan: A nationwide survey Open
Osteoporosis treatment rates after hip fractures remain low, indicating the need for more proactive intervention, including secondary fracture prevention. This study also highlights the importance of early rehabilitation and continuous sup…
View article: Effect of Zoledronic Acid Administration Timing on Metastatic Bone Tumors
Effect of Zoledronic Acid Administration Timing on Metastatic Bone Tumors Open
The earlier ZA was administered, the more strongly it suppressed bone destruction and tumor cell proliferation.
View article: Teriparatide Does Not Exacerbate Bone Metastases in Breast Cancer Bone Metastasis Model
Teriparatide Does Not Exacerbate Bone Metastases in Breast Cancer Bone Metastasis Model Open
TPTD did not cause tumor growth, pathological fractures, or bone destruction in our in vivo models, indicating that it may be safe for use in breast cancer.
View article: Early Return to Play Following Conservative Treatment of a Lumbar Flexion-Distraction Injury in a Professional Soccer Player: A Case Report
Early Return to Play Following Conservative Treatment of a Lumbar Flexion-Distraction Injury in a Professional Soccer Player: A Case Report Open
Flexion-distraction injuries of the thoracolumbar spine, often classified as AO type B2, are typically considered unstable and are generally managed surgically. However, the optimal approach for managing such injuries in elite athletes rem…
View article: Increased prevalence and severity of femoral bone wear in Japanese patients with varus knee osteoarthritis
Increased prevalence and severity of femoral bone wear in Japanese patients with varus knee osteoarthritis Open
Purpose The calliper technique in kinematic alignment total knee arthroplasty assumes nearly identical medial and lateral femoral condylar radii and negligible subchondral bone wear. However, racial differences were not considered. This st…
View article: Surgical Treatment and Prognosis of Soft Tissue Sarcoma in Patients Aged 85 Years and Older
Surgical Treatment and Prognosis of Soft Tissue Sarcoma in Patients Aged 85 Years and Older Open
Surgical treatment improves the prognosis in elderly STS patients aged ≥85 years and possibly among those aged ≥90 years.
View article: Treatment With an Osteochondral Graft From the Olecranon for a Fernandez Classification Type 4 Distal Radial Fracture
Treatment With an Osteochondral Graft From the Olecranon for a Fernandez Classification Type 4 Distal Radial Fracture Open
Fernandez type 4 distal radial fractures involve radiocarpal dislocation with an avulsion fracture of the articular margin, typically causing considerable instability because of ligament and joint capsule injuries. We present a 30-year-old…
View article: The Usefulness of Concomitant Ultrasound Guidance With Surgery for Acute Achilles Tendon Rupture Using an Internal Brace
The Usefulness of Concomitant Ultrasound Guidance With Surgery for Acute Achilles Tendon Rupture Using an Internal Brace Open
Background This study investigated the usefulness of intraoperative ultrasonography in the treatment of acute Achilles tendon rupture (ATR) using an internal brace (Achilles Midsubstance SpeedBridge, Arthrex Inc., Naples, FL), a technique …
View article: Effects of Gait Rehabilitation Robot Combined with Electrical Stimulation on Spinal Cord Injury Patients’ Blood Pressure
Effects of Gait Rehabilitation Robot Combined with Electrical Stimulation on Spinal Cord Injury Patients’ Blood Pressure Open
Background: Orthostatic hypotension can occur during acute spinal cord injury (SCI) and subsequently persist. We investigated whether a gait rehabilitation robot combined with functional electrical stimulation (FES) stabilizes hemodynamics…
View article: Isolated Talar Metastasis of Renal Cell Carcinoma Treated With Tibiocalcaneal Arthrodesis Using an Ilizarov External Fixation
Isolated Talar Metastasis of Renal Cell Carcinoma Treated With Tibiocalcaneal Arthrodesis Using an Ilizarov External Fixation Open
Acrometastases to the feet are exceedingly rare. We report a case of isolated talar metastasis from renal cell carcinoma successfully managed through surgical excision and reconstruction with Ilizarov external fixation. A 65-year-old male …
View article: Effectiveness of Peripheral Nerve Block for Early Active Exercise: Three Cases of Pyogenic Flexor Tenosynovitis
Effectiveness of Peripheral Nerve Block for Early Active Exercise: Three Cases of Pyogenic Flexor Tenosynovitis Open
To prevent limitations in the range of motion after hand surgery, it is crucial to minimize scar tissue formation and adhesions. Thus, it is important to initiate active hand exercises during the early postoperative period. Peripheral nerv…
View article: Development and evaluation of compact exercise device based on simulation using musculoskeletal model
Development and evaluation of compact exercise device based on simulation using musculoskeletal model Open
In this study, we developed and evaluated a compact exercise device that can efficiently train the quadriceps to prevent disuse syndrome in the elderly. Lower-limb muscles play a crucial role in daily life; however, muscle strength decline…
View article: Management of Methicillin-Resistant Staphylococcus aureus-infected femoral nonunion during lengthening in achondroplasia using circular external fixator: a case report
Management of Methicillin-Resistant Staphylococcus aureus-infected femoral nonunion during lengthening in achondroplasia using circular external fixator: a case report Open
Background Achondroplasia, the most common form of rhizomelic dwarfism, occurs in approximately 1 in 25,000 individuals. Clinical features include attenuated growth, rhizomelic limb shortening, and craniofacial abnormalities. Limb-lengthen…
View article: "Koshimagari Exercise" for Adult Spinal Deformity in Older Adults: Assessment of Home-Based Exercise Outcomes in a Prospective Multicenter Study
"Koshimagari Exercise" for Adult Spinal Deformity in Older Adults: Assessment of Home-Based Exercise Outcomes in a Prospective Multicenter Study Open
The "Koshimagari Exercise" program led to significant short-term improvements in health-related quality of life and pain among elderly patients with ASD. This home-based self-exercise program is an excellent nonsurgical treatment option fo…
View article: Varus-valgus native knee laxity in extension displays an almost rectangular pattern and does not correlate with lower limb alignment
Varus-valgus native knee laxity in extension displays an almost rectangular pattern and does not correlate with lower limb alignment Open
Optimal ligament balance is crucial for successful total knee arthroplasty (TKA), which is a standard procedure for managing end-stage knee osteoarthritis. However, the reported values of ligament balance vary due to different methodologie…
View article: Comparative advantages of activities with lumbosacral preservation for adult spinal deformity surgery: a retrospective Japanese cohort study
Comparative advantages of activities with lumbosacral preservation for adult spinal deformity surgery: a retrospective Japanese cohort study Open
Study Design: Retrospective cohort study.Purpose: This study aimed to demonstrate the advantages of preservation of the lumbosacral segment (LSS) in adult spinal deformity (ASD) surgery.Overview of Literature: Sacroiliac foundation enables…
View article: Dural Injury During Spinal Surgery and Postoperative Cerebrospinal Fluid Leakage: A Single-Center Experience
Dural Injury During Spinal Surgery and Postoperative Cerebrospinal Fluid Leakage: A Single-Center Experience Open
Although it was difficult to identify the cause of dural injury in more than half of patients, suturing the dura and using polyglycolic acid mesh with fibrin glue was effective. No patients required reoperation, even those who developed ce…
View article: Automatic Assist Level Adjustment Function of a Gait Exercise Rehabilitation Robot with Functional Electrical Stimulation for Spinal Cord Injury: Insights from Clinical Trials
Automatic Assist Level Adjustment Function of a Gait Exercise Rehabilitation Robot with Functional Electrical Stimulation for Spinal Cord Injury: Insights from Clinical Trials Open
This study aimed to identify whether the combined use of functional electrical stimulation (FES) reduces the motor torque of a gait exercise rehabilitation robot in spinal cord injury (SCI) and to verify the effectiveness of the developed …
View article: Changes in Skeletal Muscle Atrophy over Time in a Rat Model of Adenine-Induced Chronic Kidney Disease
Changes in Skeletal Muscle Atrophy over Time in a Rat Model of Adenine-Induced Chronic Kidney Disease Open
This study evaluated changes over time in skeletal muscle atrophy, expressions of skeletal muscle anabolic and catabolic genes, and mitochondrial activity by skeletal muscle type in an adenine-induced chronic kidney disease (CKD) model. A …
View article: Comparison of the Continuation Rates of Romosozumab and Teriparatide Administrations in a Rural Area
Comparison of the Continuation Rates of Romosozumab and Teriparatide Administrations in a Rural Area Open
Romosozumab has a dual effect on bones; it promotes bone formation and inhibits bone resorption and has a strong bone density-increasing effect. There have been various reports on the continuation rates of teriparatide, another drug used f…