Hiroshi Tamai

Hiroshi Tamai

Department Of Orthopaedic Surgery, National Hospital Organization Shimoshizu National Hospital, Yotsukaido, Japan.

Direct Impact

Concepts for which Hiroshi Tamai has direct influence:

diffusion tensor imaging
skeletal muscle mass
lumbar nerve
foraminal stenosis
spinal alignment
titanium fiber mesh
knee arthroplasty

External impact

Concepts related to the work of other authors for which Hiroshi Tamai has influence:

lumbar foraminal stenosis
diffusion tensor imaging
proton magnetic resonance spectroscopy
double-crush lesion
improved accuracy
n-acetyl aspartate
sensory nerve action potential

Prominent publications by Hiroshi Tamai

KOL-Index: 68 Much progress has been made in neuroimaging with Magnetic Resonance neurography and Diffusion Tensor Imaging (DTI) owing to higher magnetic fields and improvements in pulse sequence technology. Reports on lumbar nerve DTI have also increased considerably. Many studies have shown that the use of DTI in lumbar nerve lesions, such as lumbar foraminal stenosis and lumbar disc herniation, makes ...
Known for
Nerve Applications | Dti Increased | Higher Magnetic | Neurography
KOL-Index: 45 OBJECTIVEThe purpose of this study was to determine the relationship between vertebral bodies, psoas major morphology, and the course of lumbar nerve tracts using diffusion tensor imaging (DTI) before lateral interbody fusion (LIF) to treat spinal deformities.METHODSDTI findings in a group of 12 patients (all women, mean age 74.3 years) with degenerative lumbar scoliosis (DLS) were compared ...
Known for
Convex Nerves | Anteroposterior Diameter | Lateral Transpsoas | Extended Concave
KOL-Index: 39 Diagnosis of lumbar foraminal stenosis remains difficult. Here, we report on a case in which bilateral lumbar foraminal stenosis was difficult to diagnose, and in which diffusion tensor imaging (DTI) was useful. The patient was a 52-year-old woman with low back pain and pain in both legs that was dominant on the right. Right lumbosacral nerve compression due to a massive uterine myoma was ...
Known for
Stenosis Dti | Bilateral Lumbar | Tractography | 52-Year-Old Woman
KOL-Index: 39 OBJECTIVE: It is important to develop an easy means of diagnosing lumbar foraminal stenosis (LFS) in a general practice setting. We investigated the use of the Japanese Orthopaedic Association Back Pain Evaluation Questionnaire (JOABPEQ) to diagnose LFS in symptomatic patients. METHODS: Subjects included 13 cases (mean age, 72 years) with LFS, and 30 cases (mean age, 73 years) with lumbar ...
Known for
Chair | Established Patient-Based Method | Joabpeq Questionnaire Items | Rest Intermittent Claudication
KOL-Index: 23 STUDY DESIGN: Retrospective observational study. PURPOSE: We considered the relationship between spinal alignment and skeletal muscle mass on clinical outcomes following a surgery for lumbar spinal stenosis (LSS). OVERVIEW OF LITERATURE: There are no reports of preoperative factors predicting residual low back pain following surgery for LSS. METHODS: Our target population included 34 women ...
Known for
Lean Mass | Sarcopenia Rdq | Systemic Bone Mineral Density | Roland-Morris Disability Questionnaire
KOL-Index: 19 BACKGROUND CONTEXT: A double-crush lesion is a condition in which the lumbar nerve is compressed both medially and laterally in the spinal canal, where diagnosis can be very difficult, and is a factor leading to poor surgical success rates. PURPOSE: Diffusion tensor imaging (DTI) was used to determine DTI parameter fractional anisotropy (FA) values and apparent diffusion coefficient (ADC) in ...
Known for
Intraspinal Stenosis | Spinal Canal | Nerve Diffusion | Adc Values
KOL-Index: 19 BACKGROUND: Age-related sarcopenia may cause physical dysfunction. We investigated the involvement of sarcopenia in dropped head syndrome (DHS). METHODS: Our study subjects were ten elderly women with idiopathic DHS (mean age 75.1 years, range 55-89). Twenty age- and sex-matched volunteers (mean age 73.0, range 58-83) served as controls. We used a bioelectrical impedance analyzer (BIA) to ...
Known for
Dhs Age | Involvement Trunk | C2-7 Sagittal Vertical Axis | Cervical Sagittal Plane Alignment
KOL-Index: 12 BACKGROUND: Age-related sarcopenia can cause various forms of physical disabilities. We investigated how sarcopenia affects degenerative lumbar scoliosis (DLS) and lumbar spinal canal stenosis (LSCS). METHODS: Subjects comprised 40 elderly women (mean age 74 years) with spinal disease whose chief complaints were low back pain and lower limb pain. They included 15 cases of DLS (mean ...
Known for
Lscs Dls | Lumbar Spinal | Vra | Pelvic Tilt
KOL-Index: 12 BackgroundSeveral studies have reported varus-valgus stability in the extension position after total knee arthroplasty (TKA). However, few studies have evaluated joint laxity in the flexion position postoperatively. The purpose of the study was to evaluate joint laxity against distal traction force on flexion after cruciate-retaining and posterior-stabilized total knee ...
Known for
Backgroundseveral | Position Joint | Force Flexion | Stabilized Knee
KOL-Index: 12 千葉大学学術成果リポジトリ CURATOR で論文・教材・研究データなどを公開しています
Known for
Posterior Cruciate-Retaining Knee Arthroplasties | 千葉大学学術成果リポジトリ Curator で論文・教材・研究データなどを公開しています

Department of Orthopaedic Surgery, National Hospital Organization Shimoshizu National Hospital, Yotsukaido, Japan.

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