- Spine and Intervertebral Disc Pathology
- Shoulder Injury and Treatment
- Shoulder and Clavicle Injuries
- Musculoskeletal pain and rehabilitation
- Nerve injury and regeneration
- Infectious Diseases and Tuberculosis
- Orthopedic Surgery and Rehabilitation
- Spinal Fractures and Fixation Techniques
- Spinal Cord Injury Research
- Sarcoma Diagnosis and Treatment
- Bone Tumor Diagnosis and Treatments
- Medical Imaging and Analysis
- Scoliosis diagnosis and treatment
- Nerve Injury and Rehabilitation
- Reconstructive Surgery and Microvascular Techniques
- Trauma Management and Diagnosis
- Congenital limb and hand anomalies
- Surgical Simulation and Training
- Hip disorders and treatments
- Lower Extremity Biomechanics and Pathologies
- Intracerebral and Subarachnoid Hemorrhage Research
- Restraint-Related Deaths
- Oral and Maxillofacial Pathology
- Peripheral Nerve Disorders
- Traumatic Ocular and Foreign Body Injuries
Sapporo Medical University
2017-2025
Sunagawa City Medical Center
2024
Asahikawa Kosei Hospital
2018-2024
National Hospital Organization Hokkaido Medical Center
2024
Introduction: Thoracotomy through a median sternotomy is considered risk factor for brachial plexus paralysis. We report new case of poor prognosis despite lower radiculopathy. Case Report: A 53-year-old female (height 152 cm and weight 41 kg) complained motor impairment in her left fingers, numbness forearm, paresthesia after thoracotomy. descending thoracic aortic replacement (20 mg J-graft 1 branch) had been performed After the surgery, she noticed movement disorder, numbness, was...
Although limited spontaneous recovery occurs after spinal cord injury (SCI), current knowledge reveals that multiple forms of axon growth in spared axons can lead to circuit reorganization and a detour or relay pathways. This hypothesis has been mainly derived from studies the corticospinal tract (CST), which is primary descending motor pathway mammals. The major CST dorsal (dCST) being projection cortex cord. Two other components often called "minor" pathways are ventral lateral CSTs, may...
Lumbar spondylolysis is a common condition; nonetheless, its cause in patients with spastic cerebral palsy (CP) remains unknown. Furthermore, examination of children CP may not accurately capture complaints, thus causing diseases to be overlooked. Understanding the clinical features and gait patterns lumbar can aid diagnosis. This study aimed identify specific ambulatory CP.
The safety, feasibility, and potential functional improvement following the intravenous infusion of mesenchymal stem cells (MSCs) were investigated in patients with chronic severe spinal cord injury (SCI).
Study Design: Cross-sectional study.Purpose: The purpose of this study was to elucidate the relevance among Schmorl’s node (SN), chronic low back pain (CLBP), and intervertebral disc degeneration (IVDD) with use magnetic resonance imaging T2 mapping.Overview Literature: SN may be combined CLBP and/or IVDD; however, their relationship has not been determined date.Methods: A total 105 subjects were included (48 men 57 women; mean age, 63.2±2.7 years; range, 22–84 years). We analyzed five...
The diagnosis and treatment of partial-thickness rotator cuff tears remain controversial, only a few studies have carried out clinical evaluation comparison based on different types tears. aim this study was to compare the outcomes arthroscopic repairs using suture bridge technique in patients with articular (APRCTs) vs. those bursal (BPRCTs).We retrospectively evaluated 29 APRCTs 22 BPRCTs who underwent repair minimum 2-year follow-up. Clinical were preoperatively postoperatively visual...
It is often assumed that body posture, standing vs. supine, changes shoulder muscle activation and range of motion, but these altered mechanics have not been objectively assessed. We expected the supine posture might facilitate scapular rotation change subacromial pressure. The purpose this study to evaluate influence on kinematics during arm elevation.Ten males eight females with a mean age 33 years participated in study. Shoulder were assessed plane elevation postures by using single-plane...
Study Design A retrospective comparative study. Objective To compare retrospectively the clinical results and surgical invasiveness of two different types minimally invasive surgery for lumbar spinal canal stenosis: microendoscopic muscle-preserving interlaminar decompression (ME-MILD) process splitting laminectomy (SPSL). Summary Background Data ME-MILD SPSL are procedures. However, procedures have not been compared in literature. Materials Methods We enrolled patients who underwent or from...
Vertebral fractures associated with ankylosing spinal disorders pose significant diagnostic and therapeutic challenges. Notably, the ankylosed spine remains in ankylosis after fracture treatment, underlying susceptibility to further still remains. Nevertheless, information is scarce literature concerning patients who have multiple episodes of vertebral fractures.Case 1 involves an 83-year-old male patient diffuse idiopathic skeletal hyperostosis (ankylosis from C2 L4) had three fractures....
Abstract Background: Treatment of pyogenic spondylodiscitis or septic arthritis can be complicated with a variety concomitant infectious processes. No study has focused on osteoarticular infections. Materials and Methods: Between 2015 2019, patients over 18 years old, who were diagnosed treated for spinal infections (SIs) non-spinal infections, included. There six (concomitant infection [CI] group), 30 SI alone (SI articular (AI) (AI group). The data gained from the in CI group compared...
Introduction: Ankylosing spinal disorders present significant challenges in cases of trauma, and the treatment ankylosed spine infections may also be challenging. However, to best our knowledge, only one study date has addressed this topic, reporting a mortality rate 62%. Case Report: Our patients were four men woman with mean age 72 years. Treatments consisted intravenous antibiotics, hard brace, surgical interventions including percutaneous pedicle screw fixation two patients, laminectomy...
In lumbar spondylolisthesis, conventional standing flexion-extension radiography can yield varying results depending on the patient's effort and cooperation. Previous research suggested that assisted flexion provides larger with a significantly greater change in lordosis (ΔLL) increased sagittal translation (ST), posterior opening (PO), segmental angulation (SA), instability detection rates. this study, authors aimed to identify safe, simple, valid position for obtaining functional...
Few studies have reported the treatment and rehabilitation of combined fractures femur, tibia, ankle in same lower limb.
To assess the number of surgeries needed to acquire necessary skills perform spine surgery independently.A questionnaire on 12 different spinal procedures was sent orthopedic surgeons affiliated with teams departments at either Akita University or Sapporo Medical University. Participants were asked identify whether they (A) could independently each procedure, (B) procedure assistance a senior doctor, (C) unable procedure. Those whose response how many required skills. who responded believed...
Controversy remains regarding predictors of surgical outcomes for patients with lumbar spinal stenosis (LSS). Pain sensitization may be an underlying mechanism contributing to LSS outcomes. Further, obesity is associated dissatisfaction and poorer after surgery LSS. Therefore, this study aimed examine the relationship between central (CS), visceral fat, in LSS.Patients were categorized based on their inventory (CSI) scores into low- (CSI < 40) high- ≥ CSI subgroups. The participants...
Hyperextension injuries of the ankylosed thoracolumbar spine, particularly those with preexisting kyphotic deformity, present significant therapeutic challenges. The authors viewed that such without displacement or fractures posterior elements are reasonable candidates for standalone percutaneous vertebroplasty (PVP). In cases, tension band is spared; thus, unstable not in lateral direction, which would lead to translation fracture, but vertical direction. Such instability fracture can be...
A 44-year-old painter separately developed simultaneous nonunions at the middle of capitate and distal third scaphoid, for which we performed a cancellous bone graft from iliac crest pedicled 1,2-intercompartmental supraretinacular artery graft, respectively. Union both bones was ultimately achieved.
A 50-year-old man presented to the clinic with severe neck pain, fever, and difficulty breathing was subsequently admitted local orthopedics department possible retropharyngeal abscess pyogenic spondylitis. Antibiotic therapy initiated; however, due poor oxygenation, he referred transferred our admitted. Magnetic resonance imaging showed signal changes at left C1/2 lateral atlantoaxial joint, posterior pharynx, longus colli muscle, carotid space, medial deep cervical region, predominantly on...
Automatic nail gun injuries to the hand commonly occur with use of these machines in construction. However, such cardiothoracic area are atypical. Herein, we report a case emergency surgery remove nail, which was accidentally shot through sternum and reached heart. A 24-year-old man working narrow space at construction site, where he tripped over air hose an automatic pneumatic gun. The trigger pulled, while machine facing his direction, entered sternum. patient felt chest pain, walked...
We present the case of a 15-year-old girl. Two months after becoming aware pain, she was diagnosed with sacral tumor and referred to our department. She Ewing’s sarcoma; chemotherapy, it determined that could be resected, so surgical treatment performed. The sacrum ilium were partially resected at lower end S1, lumbar vertebrae pelvis fixed pedicle screw two iliac screws on each side L3, resection reconstructed tibial strut allograft. No recurrence or metastasis has been observed 1 year...