Masashi Yamazaki

Masashi Yamazaki

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Masashi Yamazaki

Masashi Yamazaki

Publications by authors named "Masashi Yamazaki"

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Dynamic digital tomosynthesis-radiculography is useful for diagnosis of lumbar foraminal stenosis at an adjacent level after lumbar fusion surgery: A case report.

J Clin Neurosci 2019 Jul 8;65:148-150. Epub 2019 Apr 8.

Department of Orthopedic Surgery, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8575, Japan. Electronic address:

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http://dx.doi.org/10.1016/j.jocn.2019.03.065DOI Listing
July 2019

Longitudinal diffusion tensor imaging of patients with degenerative cervical myelopathy following decompression surgery.

J Clin Neurosci 2019 Jun 11. Epub 2019 Jun 11.

Department of Orthopedic Surgery, Chiba University Graduate School of Medicine, 1-8-1 Inohana Chuou-ku, Chiba City, Chiba 260-8670, Japan.

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http://dx.doi.org/10.1016/j.jocn.2019.05.018DOI Listing
June 2019

Change in MRI findings of medial collateral ligament injury in adolescent baseball players with no clinical symptoms over time.

Skeletal Radiol 2019 May 23. Epub 2019 May 23.

Department of Diagnostic and Interventional Radiology, Faculty of Medicine, University of Tsukuba, MD 2-1-1 Amakubo, Tsukuba, Ibaraki, 305-8576, Japan.

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http://dx.doi.org/10.1007/s00256-019-03231-yDOI Listing
May 2019

Discogenic Back Pain: Literature Review of Definition, Diagnosis, and Treatment.

JBMR Plus 2019 May 4;3(5):e10180. Epub 2019 Mar 4.

Leni & Peter W. May Department of Orthopaedics Icahn School of Medicine at Mount Sinai New York NY USA.

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http://dx.doi.org/10.1002/jbm4.10180DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6524679PMC
May 2019

Surgical Repair of Acetabular Fracture Using Unidirectional Porous -Tricalcium Phosphate.

Case Rep Orthop 2019 16;2019:6860591. Epub 2019 Apr 16.

Department of Orthopedics Surgery, Faculty of Medicine, University of Tsukuba, Japan.

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http://dx.doi.org/10.1155/2019/6860591DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6501228PMC
April 2019

Charcot spinal arthropathy presenting as adjacent segment disease after lumbar spinal fusion surgery in Parkinson's disease: A case report.

J Clin Neurosci 2019 Mar 13;61:281-284. Epub 2018 Nov 13.

Department of Orthopaedic Surgery, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8575, Japan.

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http://dx.doi.org/10.1016/j.jocn.2018.11.013DOI Listing
March 2019

Osteoarticular lesion in xanthoma disseminatum treated with total hip arthroplasty: a case report.

J Med Case Rep 2019 Mar 5;13(1):51. Epub 2019 Mar 5.

Department of Orthopaedics Surgery, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8575, Japan.

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http://dx.doi.org/10.1186/s13256-019-2005-zDOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6399818PMC
March 2019

Growth factor levels in leukocyte-poor platelet-rich plasma and correlations with donor age, gender, and platelets in the Japanese population.

J Exp Orthop 2019 Feb 2;6(1). Epub 2019 Feb 2.

Department of Orthopaedic Surgery, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8575, Japan.

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http://dx.doi.org/10.1186/s40634-019-0175-7DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6359998PMC
February 2019

Screening for musculoskeletal problems in children using a questionnaire.

J Orthop Sci 2019 Jan 23;24(1):159-165. Epub 2018 Aug 23.

Department of Orthopaedic Surgery, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8575, Japan. Electronic address:

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http://dx.doi.org/10.1016/j.jos.2018.07.022DOI Listing
January 2019

Unidirectional porous β-tricalcium phosphate induces bony fusion in lateral lumbar interbody fusion.

J Clin Neurosci 2019 Jan 20;59:232-235. Epub 2018 Sep 20.

Department of Orthopaedic Surgery, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8575, Japan. Electronic address:

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http://dx.doi.org/10.1016/j.jocn.2018.09.004DOI Listing
January 2019

Treatment of Periprosthetic Humeral Shaft Fracture after Total Elbow Arthroplasty in an Osteoporotic Patient, using the Ilizarov External Ring Fixator: A Case Report.

J Orthop Case Rep 2018 Jul-Aug;8(4):82-85

Department of Orthopaedic Surgery, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8575, Japan.

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http://dx.doi.org/10.13107/jocr.2250-0685.1172DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6343564PMC
January 2019

Methotrexate-related lymphoproliferative disorder of the lumbar spine origin presenting with severe low-back pain: case report.

J Neurosurg Spine 2018 Nov;29(5):545-548

2Department of Orthopaedic Surgery, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan.

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http://dx.doi.org/10.3171/2018.4.SPINE1860DOI Listing
November 2018

Vertebral fracture after removing pedicle screws used for posterior lumbar interbody fusion: A case report.

J Clin Neurosci 2018 Nov 19;57:182-184. Epub 2018 Sep 19.

Department of Orthopedic Surgery, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8575, Japan. Electronic address:

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http://dx.doi.org/10.1016/j.jocn.2018.04.019DOI Listing
November 2018

Formation of osteon-like structures in unidirectional porous hydroxyapatite substitute.

J Biomed Mater Res B Appl Biomater 2018 Oct 13;106(7):2665-2672. Epub 2018 Feb 13.

Department of Orthopaedic Surgery, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan.

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http://dx.doi.org/10.1002/jbm.b.34083DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6175337PMC
October 2018

Three cases of spondylotic myelopathy at the C7-T1 level.

J Clin Neurosci 2018 10 4;56:182-185. Epub 2018 Jul 4.

Department of Orthopedic Surgery, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, Japan.

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http://dx.doi.org/10.1016/j.jocn.2018.06.034DOI Listing
October 2018

The RORγt-CCR6-CCL20 axis augments Th17 cells invasion into the synovia of rheumatoid arthritis patients.

Mod Rheumatol 2018 Sep 22;28(5):814-825. Epub 2018 Jan 22.

a Department of Internal Medicine, Faculty of Medicine , University of Tsukuba , Tsukuba , Japan.

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http://dx.doi.org/10.1080/14397595.2017.1416923DOI Listing
September 2018

Normal imaging laterality on magnetic resonance imaging of the medial epicondyle of the elbow on the dominant side of adolescent male baseball players.

Skeletal Radiol 2018 Sep 9;47(9):1237-1244. Epub 2018 Mar 9.

Department of Orthopaedic Surgery, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan.

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http://dx.doi.org/10.1007/s00256-018-2921-9DOI Listing
September 2018

A Magnetic Resonance Imaging-Based Staging System for Osteochondritis Dissecans of the Elbow: A Validation Study Against the International Cartilage Repair Society Classification.

Orthop J Sports Med 2018 Sep 12;6(9):2325967118794620. Epub 2018 Sep 12.

Department of Orthopaedic Surgery, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan.

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http://dx.doi.org/10.1177/2325967118794620DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6136112PMC
September 2018

Novel Unidirectional Porous β-Tricalcium Phosphate Used as a Bone Substitute after Excision of Benign Bone Tumors of the Hand: A Case Series.

J Hand Surg Asian Pac Vol 2018 Sep;23(3):424-429

* Department of Orthopaedic Surgery, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan.

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http://dx.doi.org/10.1142/S2424835518720293DOI Listing
September 2018

Three-dimensional MRI Analysis of Femoral Head Remodeling After Reduction in Patients With Developmental Dysplasia of the Hip.

J Pediatr Orthop 2018 Aug;38(7):e377-e381

Department of Orthopaedic Surgery, University of Tsukuba, Tsukuba Pediatric Orthopaedic Group, Tsukuba.

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http://dx.doi.org/10.1097/BPO.0000000000001186DOI Listing
August 2018

Cost-effectiveness analysis of drugs for osteoporosis treatment in elderly Japanese women at high risk of fragility fractures: comparison of denosumab and weekly alendronate.

Arch Osteoporos 2018 08 29;13(1):94. Epub 2018 Aug 29.

Department of Orthopaedic Surgery, Faculty of Medicine, University of Tsukuba, 1-1-1, Tennodai, Tsukuba, Ibaraki, 305-8575, Japan.

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http://dx.doi.org/10.1007/s11657-018-0509-6DOI Listing
August 2018

Mid-term results of concentrated autologous bone marrow aspirate transplantation for corticosteroid-associated osteonecrosis of the femoral head in systemic lupus erythematosus.

Int Orthop 2018 07 28;42(7):1623-1630. Epub 2018 Apr 28.

Department of Orthopaedic Surgery, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8575, Japan.

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http://dx.doi.org/10.1007/s00264-018-3959-yDOI Listing
July 2018

The hybrid assistive limb (HAL) for Care Support successfully reduced lumbar load in repetitive lifting movements.

J Clin Neurosci 2018 Jul 3;53:276-279. Epub 2018 May 3.

Department of Orthopaedic Surgery, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8575, Japan.

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http://dx.doi.org/10.1016/j.jocn.2018.04.057DOI Listing
July 2018

Training with Hybrid Assistive Limb for walking function after total knee arthroplasty.

J Orthop Surg Res 2018 Jul 3;13(1):163. Epub 2018 Jul 3.

Department of Orthopaedic Surgery, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8575, Japan.

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http://dx.doi.org/10.1186/s13018-018-0875-1DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6029050PMC
July 2018

Surgical treatment for dropped head syndrome with cervical spondylotic amyotrophy: a case report.

BMC Res Notes 2018 Jul 24;11(1):500. Epub 2018 Jul 24.

Department of Orthopaedic Surgery, Toho University Sakura Medical Center, 564-1, Shimoshizu, Sakura City, Chiba, 285-8741, Japan.

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http://dx.doi.org/10.1186/s13104-018-3612-2DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6057102PMC
July 2018

A novel exercise device for venous thromboembolism prophylaxis improves venous flow in bed versus ankle movement exercises in healthy volunteers.

J Orthop Surg (Hong Kong) 2017 Sep-Dec;25(3):2309499017739477

2 Department of Orthopaedic Surgery, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan.

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http://dx.doi.org/10.1177/2309499017739477DOI Listing
June 2018

Gait training using a hybrid assistive limb (HAL) attenuates head drop: A case report.

J Clin Neurosci 2018 Jun 31;52:141-144. Epub 2018 Mar 31.

Department of Orthopaedic Surgery, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8575, Japan.

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http://dx.doi.org/10.1016/j.jocn.2018.03.010DOI Listing
June 2018

Study protocol for the G-SPIRIT trial: a randomised, placebo-controlled, double-blinded phase III trial of granulocyte colony-stimulating factor-mediated neuroprotection for acute spinal cord injury.

BMJ Open 2018 05 5;8(5):e019083. Epub 2018 May 5.

G-SPIRIT Study Group, Chiba, Japan.

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http://dx.doi.org/10.1136/bmjopen-2017-019083DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5942478PMC
May 2018

Shoulder motion assistance using a single-joint Hybrid Assistive Limb robot: Evaluation of its safety and validity in healthy adults.

J Orthop Surg (Hong Kong) 2017 Sep-Dec;25(3):2309499017727951

1 Department of Orthopedic Surgery, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki Prefecture, Japan.

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http://dx.doi.org/10.1177/2309499017727951DOI Listing
April 2018

Effect of local administration of platelet-rich plasma (PRP) on peripheral nerve regeneration: An experimental study in the rabbit model.

Microsurgery 2018 Mar 2;38(3):300-309. Epub 2017 Nov 2.

Department of orthopaedic surgery, Faculty of medicine, University of Tsukuba, Ibaraki, Japan.

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http://dx.doi.org/10.1002/micr.30263DOI Listing
March 2018

Three-dimensional gait analysis reveals dynamic alignment change in a patient with dropped head syndrome: A case report.

J Clin Neurosci 2018 Feb 3;48:106-108. Epub 2017 Nov 3.

Department of Orthopaedic Surgery, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8575, Japan. Electronic address:

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http://dx.doi.org/10.1016/j.jocn.2017.10.075DOI Listing
February 2018

Comparative Analysis of Cellular and Growth Factor Composition in Bone Marrow Aspirate Concentrate and Platelet-Rich Plasma.

Bone Marrow Res 2018 25;2018:1549826. Epub 2018 Feb 25.

Department of Orthopedic Surgery, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8575, Japan.

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https://www.hindawi.com/archive/2018/1549826/
Publisher Site
http://dx.doi.org/10.1155/2018/1549826DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5845506PMC
February 2018

Challenges faced by the Japanese Orthopaedic Association in the treatment and prevention of locomotive organ disorders in the era of "super-ageing".

Authors:
Masashi Yamazaki

J Orthop Sci 2018 Jan 28;23(1):1-2. Epub 2017 Nov 28.

President, Japanese Orthopaedic Association Professor and Chairman, Department of Orthopaedic Surgery, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba-City, Ibaraki 305-8575, Japan. Electronic address:

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http://dx.doi.org/10.1016/j.jos.2017.11.010DOI Listing
January 2018

Subacute Urinary Retention due to a Subpubic Cartilaginous Cyst Treated with Surgical Resection and Internal Fixation: A Case Report and Review of the Literature.

Case Rep Orthop 2018 14;2018:5736341. Epub 2018 Jan 14.

Department of Orthopaedics Surgery, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8575, Japan.

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http://dx.doi.org/10.1155/2018/5736341DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5821967PMC
January 2018

Experimental rat model for cervical compressive myelopathy.

Neuroreport 2017 Dec;28(18):1239-1245

Departments of aOrthopedic Surgery bEnvironmental Medicine, Chiba University Graduate School of Medicine, Chiba cDepartment of Orthopedic Surgery, University of Tsukuba, Tsukuba, Japan.

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http://dx.doi.org/10.1097/WNR.0000000000000907DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5704668PMC
December 2017

Addition of instrumented fusion to laminoplasty cannot suppress postoperative sagittal balance exacerbation.

J Clin Neurosci 2017 11 4;45:214-217. Epub 2017 Aug 4.

Department of Orthopedic Surgery, Chiba University Graduate School of Medicine, Japan. Electronic address:

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http://dx.doi.org/10.1016/j.jocn.2017.07.001DOI Listing
November 2017

Diffusion tensor imaging can predict surgical outcomes of patients with cervical compression myelopathy.

Eur Spine J 2017 09 16;26(9):2459-2466. Epub 2017 Jun 16.

Department of Orthopaedic Surgery, Chiba University Graduate School of Medicine, 1-8-1 Inohana Chuou-ku, Chiba, Chiba, 260-8670, Japan.

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http://dx.doi.org/10.1007/s00586-017-5191-7DOI Listing
September 2017

Aggregation is a critical cause of poor transfer into the brain tissue of intravenously administered cationic PAMAM dendrimer nanoparticles.

Int J Nanomedicine 2017 24;12:3967-3975. Epub 2017 May 24.

Center for Health and Environmental Risk Research, National Institute for Environmental Studies, Tsukuba, Ibaraki.

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http://dx.doi.org/10.2147/IJN.S125808DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5449168PMC
August 2017

Robotic device-assisted knee extension training during the early postoperative period after opening wedge high tibial osteotomy: a case report.

J Med Case Rep 2017 Aug 5;11(1):213. Epub 2017 Aug 5.

Department of Orthopedic Surgery, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8575, Japan.

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http://dx.doi.org/10.1186/s13256-017-1367-3DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5544981PMC
August 2017

The Training Effect of Early Intervention with a Hybrid Assistive Limb after Total Knee Arthroplasty.

Case Rep Orthop 2017 10;2017:6912706. Epub 2017 Aug 10.

Department of Orthopaedic Surgery, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8575, Japan.

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http://dx.doi.org/10.1155/2017/6912706DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5569870PMC
August 2017

Clinical interpretation of asymptomatic medial collateral ligament injury observed on magnetic resonance imaging in adolescent baseball players.

Jpn J Radiol 2017 Jun 18;35(6):319-326. Epub 2017 Apr 18.

Department of Orthopaedic Surgery, Faculty of Medicine University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8576, Japan.

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http://dx.doi.org/10.1007/s11604-017-0636-9DOI Listing
June 2017

Autologous Concentrated Bone Marrow Grafting for the Treatment of Osteonecrosis of the Humeral Head: A Report of Five Shoulders in Four Cases.

Case Rep Orthop 2017 20;2017:4898057. Epub 2017 Jun 20.

Department of Orthopaedics Surgery, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8575, Japan.

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http://dx.doi.org/10.1155/2017/4898057DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5496114PMC
June 2017