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Publisher: Medknow Publishers   (Total: 425 journals)

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Showing 1 - 200 of 425 Journals sorted alphabetically
Acta Medica Intl.     Open Access   (SJR: 0.101, CiteScore: 0)
Advanced Arab Academy of Audio-Vestibulogy J.     Open Access  
Advanced Biomedical Research     Open Access  
Advances in Human Biology     Open Access   (Followers: 4)
Advances in Skeletal Muscle Function Assessment     Open Access  
African J. for Infertility and Assisted Conception     Open Access   (Followers: 1)
African J. of Medical and Health Sciences     Open Access   (Followers: 3)
African J. of Paediatric Surgery     Open Access   (Followers: 7, SJR: 0.25, CiteScore: 1)
African J. of Trauma     Open Access   (Followers: 1)
Ain-Shams J. of Anaesthesiology     Open Access   (Followers: 2)
Al-Azhar Assiut Medical J.     Open Access   (Followers: 2)
Al-Basar Intl. J. of Ophthalmology     Open Access   (Followers: 1)
Alexandria J. of Pediatrics     Open Access   (Followers: 1)
Ancient Science of Life     Open Access   (Followers: 5)
Anesthesia : Essays and Researches     Open Access   (Followers: 10)
Annals of African Medicine     Open Access   (Followers: 2, SJR: 0.258, CiteScore: 1)
Annals of Bioanthropology     Open Access   (Followers: 5)
Annals of Cardiac Anaesthesia     Open Access   (Followers: 14, SJR: 0.308, CiteScore: 1)
Annals of Indian Academy of Neurology     Open Access   (Followers: 3, SJR: 0.434, CiteScore: 1)
Annals of Indian Academy of Otorhinolaryngology Head and Neck Surgery     Open Access  
Annals of Indian Psychiatry     Open Access  
Annals of Maxillofacial Surgery     Open Access   (Followers: 6)
Annals of Medical and Health Sciences Research     Open Access   (Followers: 7)
Annals of Nigerian Medicine     Open Access   (Followers: 1)
Annals of Pediatric Cardiology     Open Access   (Followers: 12, SJR: 0.352, CiteScore: 1)
Annals of Saudi Medicine     Open Access   (SJR: 0.238, CiteScore: 1)
Annals of Thoracic Medicine     Open Access   (Followers: 6, SJR: 0.524, CiteScore: 1)
Annals of Tropical Medicine and Public Health     Open Access   (Followers: 13, SJR: 0.152, CiteScore: 0)
Annals of Tropical Pathology     Open Access  
Apollo Medicine     Open Access  
APOS Trends in Orthodontics     Open Access   (Followers: 1)
Arab J. of Interventional Radiology     Open Access   (Followers: 1)
Archives of Cardiovascular Imaging     Open Access   (Followers: 2, SJR: 0.187, CiteScore: 0)
Archives of Intl. Surgery     Open Access   (Followers: 10, SJR: 0.302, CiteScore: 1)
Archives of Medicine and Health Sciences     Open Access   (Followers: 4)
Archives of Medicine and Surgery     Open Access  
Archives of Pharmacy Practice     Open Access   (Followers: 10, SJR: 0.102, CiteScore: 0)
Archives of Trauma Research     Open Access   (Followers: 3, SJR: 0.37, CiteScore: 2)
Asia Pacific J. of Clinical Trials : Nervous System Diseases     Open Access  
Asia-Pacific J. of Oncology Nursing     Open Access   (Followers: 5)
Asian J. of Andrology     Open Access   (Followers: 1, SJR: 0.856, CiteScore: 2)
Asian J. of Neurosurgery     Open Access   (Followers: 2)
Asian J. of Oncology     Open Access   (Followers: 2)
Asian J. of Transfusion Science     Open Access   (Followers: 1, SJR: 0.35, CiteScore: 1)
Asian Pacific J. of Reproduction     Open Access   (SJR: 0.227, CiteScore: 1)
Asian Pacific J. of Tropical Biomedicine     Open Access   (Followers: 2, SJR: 0.491, CiteScore: 2)
Asian Pacific J. of Tropical Medicine     Open Access   (Followers: 1, SJR: 0.561, CiteScore: 2)
Astrocyte     Open Access  
Avicenna J. of Medicine     Open Access   (Followers: 1)
AYU : An international quarterly journal of research in Ayurveda     Open Access   (Followers: 6)
Benha Medical J.     Open Access  
Biomedical and Biotechnology Research J.     Open Access   (Followers: 1)
BLDE University J. of Health Sciences     Open Access  
Brain Circulation     Open Access   (Followers: 1)
Bulletin of Faculty of Physical Therapy     Open Access   (Followers: 2)
Canadian J. of Rural Medicine     Full-text available via subscription   (Followers: 1, SJR: 0.202, CiteScore: 0)
Cancer Translational Medicine     Open Access   (Followers: 2)
Cardiology Plus     Open Access   (Followers: 1)
Chinese Medical J.     Open Access   (Followers: 10, SJR: 0.52, CiteScore: 1)
CHRISMED J. of Health and Research     Open Access   (Followers: 2)
Clinical Cancer Investigation J.     Open Access  
Clinical Dermatology Review     Open Access   (Followers: 4)
Clinical Trials in Degenerative Diseases     Open Access  
Clinical Trials in Orthopedic Disorders     Open Access  
Community Acquired Infection     Open Access  
Conservation and Society     Open Access   (Followers: 8, SJR: 0.811, CiteScore: 2)
Contemporary Clinical Dentistry     Open Access   (Followers: 5, SJR: 0.353, CiteScore: 1)
Current Medical Issues     Open Access   (Followers: 1)
CytoJ.     Open Access   (Followers: 2, SJR: 0.543, CiteScore: 1)
Delta J. of Ophthalmology     Open Access  
Dental Hypotheses     Open Access   (Followers: 4, SJR: 0.152, CiteScore: 0)
Dental Research J.     Open Access   (Followers: 13, SJR: 0.416, CiteScore: 1)
Dentistry and Medical Research     Open Access   (Followers: 1)
Digital Medicine     Open Access  
Drug Development and Therapeutics     Open Access  
Education for Health     Open Access   (Followers: 7, SJR: 0.242, CiteScore: 0)
Egyptian J. of Bronchology     Open Access  
Egyptian J. of Cardiothoracic Anesthesia     Open Access  
Egyptian J. of Cataract and Refractive Surgery     Open Access   (Followers: 1, SJR: 1.799, CiteScore: 2)
Egyptian J. of Chest Diseases and Tuberculosis     Open Access   (Followers: 3, SJR: 0.155, CiteScore: 0)
Egyptian J. of Dermatology and Venerology     Open Access   (Followers: 1)
Egyptian J. of Haematology     Open Access   (Followers: 1)
Egyptian J. of Internal Medicine     Open Access   (Followers: 1)
Egyptian J. of Obesity, Diabetes and Endocrinology     Open Access   (Followers: 1)
Egyptian J. of Otolaryngology     Open Access   (Followers: 2)
Egyptian J. of Psychiatry     Open Access   (Followers: 1)
Egyptian J. of Surgery     Open Access   (Followers: 1)
Egyptian Nursing J.     Open Access  
Egyptian Orthopaedic J.     Open Access   (Followers: 2)
Egyptian Pharmaceutical J.     Open Access   (Followers: 3)
Egyptian Retina J.     Open Access  
Egyptian Rheumatology and Rehabilitation     Open Access   (Followers: 2)
Endodontology     Open Access  
Endoscopic Ultrasound     Open Access   (SJR: 0.822, CiteScore: 2)
Environmental Disease     Open Access   (Followers: 4)
Eurasian J. of Pulmonology     Open Access  
European J. of Dentistry     Open Access   (Followers: 4, SJR: 0.749, CiteScore: 2)
European J. of General Dentistry     Open Access   (Followers: 2, SJR: 0.12, CiteScore: 0)
European J. of Prosthodontics     Open Access   (Followers: 4)
European J. of Psychology and Educational Studies     Open Access   (Followers: 11, SJR: 0.113, CiteScore: 0)
Fertility Science and Research     Open Access  
Formosan J. of Surgery     Open Access   (SJR: 0.112, CiteScore: 0)
Genome Integrity     Open Access   (Followers: 2, SJR: 0.153, CiteScore: 0)
Glioma     Open Access  
Global J. of Transfusion Medicine     Open Access   (Followers: 1)
Gynecology and Minimally Invasive Therapy     Open Access   (SJR: 0.311, CiteScore: 1)
Hamdan Medical J.     Open Access  
Heart and Mind     Open Access  
Heart India     Open Access   (Followers: 2)
Heart Views     Open Access   (Followers: 2)
Hepatitis B Annual     Open Access   (Followers: 3)
Ibnosina J. of Medicine and Biomedical Sciences     Open Access   (Followers: 1)
IJS Short Reports     Open Access  
Imam J. of Applied Sciences     Open Access  
Indian Dermatology Online J.     Open Access   (Followers: 3)
Indian J. of Allergy, Asthma and Immunology     Open Access   (Followers: 1)
Indian J. of Anaesthesia     Open Access   (Followers: 7, SJR: 0.478, CiteScore: 1)
Indian J. of Burns     Open Access   (Followers: 1)
Indian J. of Cancer     Open Access   (Followers: 1, SJR: 0.361, CiteScore: 1)
Indian J. of Cerebral Palsy     Open Access   (Followers: 1)
Indian J. of Community Medicine     Open Access   (Followers: 2, SJR: 0.37, CiteScore: 1)
Indian J. of Dental Research     Open Access   (Followers: 5, SJR: 0.266, CiteScore: 1)
Indian J. of Dental Sciences     Open Access  
Indian J. of Dentistry     Open Access   (Followers: 1)
Indian J. of Dermatology     Open Access   (Followers: 2, SJR: 0.468, CiteScore: 1)
Indian J. of Dermatology, Venereology and Leprology     Open Access   (Followers: 4, SJR: 0.445, CiteScore: 1)
Indian J. of Dermatopathology and Diagnostic Dermatology     Open Access  
Indian J. of Drugs in Dermatology     Open Access   (Followers: 1, SJR: 0.791, CiteScore: 1)
Indian J. of Endocrinology and Metabolism     Open Access   (Followers: 4, SJR: 0.568, CiteScore: 1)
Indian J. of Health Sciences and Biomedical Research KLEU     Open Access   (Followers: 3)
Indian J. of Medical and Paediatric Oncology     Open Access   (SJR: 0.425, CiteScore: 1)
Indian J. of Medical Microbiology     Open Access   (Followers: 2, SJR: 0.503, CiteScore: 1)
Indian J. of Medical Research     Open Access   (Followers: 4, SJR: 0.656, CiteScore: 1)
Indian J. of Medical Sciences     Open Access   (Followers: 2, SJR: 0.102, CiteScore: 0)
Indian J. of Multidisciplinary Dentistry     Open Access   (Followers: 1)
Indian J. of Nephrology     Open Access   (Followers: 2, SJR: 0.347, CiteScore: 1)
Indian J. of Nuclear Medicine     Open Access   (Followers: 2, SJR: 0.23, CiteScore: 0)
Indian J. of Occupational and Environmental Medicine     Open Access   (Followers: 3, SJR: 0.225, CiteScore: 1)
Indian J. of Ophthalmology     Open Access   (Followers: 4, SJR: 0.498, CiteScore: 1)
Indian J. of Oral Health and Research     Open Access  
Indian J. of Oral Sciences     Open Access   (Followers: 1)
Indian J. of Orthopaedics     Open Access   (Followers: 8, SJR: 0.392, CiteScore: 1)
Indian J. of Otology     Open Access   (Followers: 1, SJR: 0.199, CiteScore: 0)
Indian J. of Paediatric Dermatology     Open Access   (Followers: 2)
Indian J. of Pain     Open Access   (Followers: 2)
Indian J. of Palliative Care     Open Access   (Followers: 6, SJR: 0.454, CiteScore: 1)
Indian J. of Pathology and Microbiology     Open Access   (Followers: 3, SJR: 0.276, CiteScore: 1)
Indian J. of Pharmacology     Open Access   (SJR: 0.412, CiteScore: 1)
Indian J. of Psychiatry     Open Access   (Followers: 2, SJR: 0.408, CiteScore: 1)
Indian J. of Psychological Medicine     Open Access   (SJR: 0.368, CiteScore: 1)
Indian J. of Public Health     Open Access   (Followers: 1)
Indian J. of Radiology and Imaging     Open Access   (Followers: 4)
Indian J. of Research in Homoeopathy     Open Access  
Indian J. of Respiratory Care     Open Access  
Indian J. of Rheumatology     Open Access   (Followers: 1, SJR: 0.119, CiteScore: 0)
Indian J. of Sexually Transmitted Diseases and AIDS     Open Access   (Followers: 2, SJR: 0.34, CiteScore: 0)
Indian J. of Social Psychiatry     Open Access   (Followers: 1)
Indian J. of Transplantation     Open Access  
Indian J. of Urology     Open Access   (Followers: 4, SJR: 0.434, CiteScore: 1)
Indian J. of Vascular and Endovascular Surgery     Open Access   (Followers: 2)
Indian Spine J.     Open Access  
Industrial Psychiatry J.     Open Access   (Followers: 2)
Intervention     Open Access   (Followers: 1)
Intl. Archives of Health Sciences     Open Access  
Intl. J. of Abdominal Wall and Hernia Surgery     Open Access   (Followers: 1)
Intl. J. of Academic Medicine     Open Access  
Intl. J. of Advanced Medical and Health Research     Open Access  
Intl. J. of Applied and Basic Medical Research     Open Access  
Intl. J. of Clinical and Experimental Physiology     Open Access   (Followers: 1)
Intl. J. of Clinicopathological Correlation     Open Access   (Followers: 1)
Intl. J. of Community Dentistry     Open Access  
Intl. J. of Critical Illness and Injury Science     Open Access   (Followers: 1, SJR: 0.192, CiteScore: 0)
Intl. J. of Educational and Psychological Researches     Open Access   (Followers: 4)
Intl. J. of Environmental Health Engineering     Open Access   (Followers: 1)
Intl. J. of Forensic Odontology     Open Access   (Followers: 1)
Intl. J. of Green Pharmacy     Open Access   (Followers: 8, SJR: 0.142, CiteScore: 0)
Intl. J. of Growth Factors and Stem Cells in Dentistry     Open Access  
Intl. J. of Health & Allied Sciences     Open Access   (Followers: 3)
Intl. J. of Health System and Disaster Management     Open Access   (Followers: 3)
Intl. J. of Heart Rhythm     Open Access  
Intl. J. of Medicine and Public Health     Open Access   (Followers: 6)
Intl. J. of Mycobacteriology     Open Access   (SJR: 0.535, CiteScore: 1)
Intl. J. of Noncommunicable Diseases     Open Access  
Intl. J. of Nutrition, Pharmacology, Neurological Diseases     Open Access   (Followers: 4, SJR: 0.17, CiteScore: 0)
Intl. J. of Oral Health Sciences     Open Access   (Followers: 3)
Intl. J. of Orofacial Biology     Open Access   (Followers: 1)
Intl. J. of Orofacial Research     Open Access   (Followers: 2)
Intl. J. of Orthodontic Rehabilitation     Open Access   (Followers: 1)
Intl. J. of Pedodontic Rehabilitation     Open Access  
Intl. J. of Pharmaceutical Investigation     Open Access   (Followers: 2)
Intl. J. of Preventive Medicine     Open Access   (Followers: 1, SJR: 0.623, CiteScore: 1)
Intl. J. of Shoulder Surgery     Open Access   (Followers: 5, SJR: 0.653, CiteScore: 1)
Intl. J. of the Cardiovascular Academy     Open Access   (SJR: 0.105, CiteScore: 0)
Intl. J. of Trichology     Open Access   (SJR: 0.4, CiteScore: 1)
Intl. J. of Yoga     Open Access   (Followers: 15)
Intl. J. of Yoga : Philosophy, Psychology and Parapsychology     Open Access   (Followers: 6)
Iranian J. of Nursing and Midwifery Research     Open Access   (Followers: 3)
Iraqi J. of Hematology     Open Access  
J. of Academy of Medical Sciences     Open Access  
J. of Acute Disease     Open Access   (SJR: 0.163, CiteScore: 1)

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Chinese Medical Journal
Journal Prestige (SJR): 0.52
Citation Impact (citeScore): 1
Number of Followers: 10  

  This is an Open Access Journal Open Access journal
ISSN (Print) 0366-6999 - ISSN (Online) 2542-5641
Published by Medknow Publishers Homepage  [425 journals]
  • Artificial intelligence in orthopedic surgery: current state and future
           perspective

    • Authors: Han; Xiao-Guang; Tian, Wei
      Abstract: No abstract available
      PubDate: Tue, 05 Nov 2019 00:00:00 GMT-
       
  • Three-dimensional mapping of intertrochanteric fracture lines

    • Authors: Li; Ming; Li, Zhi-Rui; Li, Jian-Tao; Lei, Ming-Xing; Su, Xiu-Yun; Wang, Guo-Qi; Zhang, Hao; Xu, Gao-Xiang; Yin, Peng; Zhang, Li-Cheng; Tang, Pei-Fu
      Abstract: imageBackground: Available research about the anatomic patterns of intertrochanteric fractures is lacking, and fracture mapping has not previously been performed on intertrochanteric fractures. This study aimed to determine the major trajectories of intertrochanteric fracture lines using computed tomography data from a series of surgically treated patients.Methods: In this study, 504 patients with intertrochanteric fractures were retrospectively analyzed. Fracture patterns were graded according to Arbeitsgemeinschaft für Osteosynthesefragen (AO) classification. Fracture lines were transcribed onto proximal femoral templates and graphically superimposed to create a compilation of fracture maps that were subsequently divided into anterior, posterior, lateral, and medial fracture maps to create a three-dimensional (3D) pattern by reducing fragments in the 3D models. The fracture maps were then converted into frequency spectra. The major fracture patterns were assessed by focusing on the lateral femoral wall, lesser trochanter, intertrochanteric crest, and inner cortical buttress.Results: Anterior, posterior, lateral, and medial fracture maps were created. The majority of fracture lines (85.9%, 433/504) on the anterior maps were along the intertrochanteric line where the iliofemoral ligament was attached. In the medial plane, the majority of fracture lines (49.0%, 247/504) shown on the frequency spectrum included the turning point involving the third quadrant. In the posterior plane, the majority of fracture lines (52.0%, 262/504) involved the intertrochanteric crest from the greater to the lesser trochanter. In the lateral plane, the majority of fracture lines (62.7%, 316/504) involved the greater trochanter at the gluteus medius attachment.Conclusions: The fracture patterns observed in the present study might be used to describe morphologic characteristics and aid with management strategies. Further classifications or modifications that incorporate the fracture patterns identified in this study may be used in future research.
      PubDate: Tue, 05 Nov 2019 00:00:00 GMT-
       
  • Predictors and reduction techniques for irreducible reverse
           intertrochanteric fractures

    • Authors: Hao; You-Liang; Zhang, Zhi-Shan; Zhou, Fang; Ji, Hong-Quan; Tian, Yun; Guo, Yan; Lyu, Yang; Yang, Zhong-Wei; Hou, Guo-Jin
      Abstract: imageBackground: Reverse intertrochanteric fractures are usually initially treated with closed reduction. However, sometimes these fractures are not amenable to closed reduction and require open reduction. To date, few studies have been conducted on predictors of and reduction techniques for irreducible reverse intertrochanteric fractures. Therefore, this study aimed to summarize the displacement patterns of irreducible reverse intertrochanteric fractures and corresponding reduction techniques, and explore predictors of irreducibility.Methods: We reviewed 1174 cases of trochanteric fractures treated in our hospital from January 2006 to October 2018, 113 of which were reverse intertrochanteric fractures. An irreducible fracture was determined according to intra-operative fluoroscopy imaging after closed manipulation. Fractures were assessed for displacement patterns, radiographic features of irreducibility, and reduction techniques. Logistic regression analysis was performed on potential predictors for irreducibility, including gender, age, body mass index, AO Foundation/Orthopaedic Trauma Association (AO/OTA) classification, and radiographic features.Results: Seventy-six irreducible fractures were identified, accounting for 67% of reverse intertrochanteric fractures. Six patterns of fracture displacement after closed manipulation were identified; the most common pattern was medial displacement and posterior sagging of the femoral shaft relative to the head-neck fragment. Multivariate logistic regression analysis identified three predictors of irreducibility: a medially displaced femoral shaft relative to the head-neck fragment on the anteroposterior (AP) view (odds ratio [OR], 8.00; 95% confidence interval [CI], 3.04–21.04; P 
      PubDate: Tue, 05 Nov 2019 00:00:00 GMT-
       
  • Short-segment decompression/fusion versus long-segment
           decompression/fusion and osteotomy for Lenke-Silva type VI adult
           degenerative scoliosis

    • Authors: Zhang; Hao-Cong; Yu, Hai-Long; Yang, Hui-Feng; Sun, Peng-Fei; Wu, Hao-Tian; Zhan, Yang; Wang, Zheng; Xiang, Liang-Bi
      Abstract: imageBackground: The effect of short-segment decompression/fusion versus long-segment decompression/fusion and osteotomy for Lenke-Silva type VI adult degenerative scoliosis (ADS) has not been clarified. This study aimed to compare the clinical and radiographic results of short-segment fusion vs. long-segment fusion and osteotomy for patients with Lenke-Silva type VI ADS.Methods: Data of 28 patients who underwent spinal surgery for ADS from January 2012 to January 2014 in the General Hospital of Northern Theater Command were reviewed. Of the 28 patients, 12 received long-segment fusion and osteotomy and 16 received short-segment fusion. Radiographic imaging parameters and clinical outcomes, including the sagittal vertical axis (SVA), lumbar lordosis (LL) angle, pelvic tilt (PT), sacral slope (SS), the visual analog scale (VAS), Japanese Orthopedic Association (JOA), Oswestry disability index (ODI), and lumbar stiffness disability index (LSDI) scores, were recorded. The difference between groups was compared using the dependent t test or Chi-squared test.Results: The Cobb and LL angles and SVA improved in both groups; however, PT and SS angles did not improve following short fusion. There were significant differences in the post-operative SVA (26.8 ± 5.4 mm vs. 47.5 ± 7.6 mm, t = –8.066, P 
      PubDate: Tue, 05 Nov 2019 00:00:00 GMT-
       
  • Effect of medial meniscus extrusion on arthroscopic surgery outcome in the
           osteoarthritic knee associated with medial meniscus tear: a minimum 4-year
           follow-up

    • Authors: Wang; Yu-Xing; Li, Zhong-Li; Li, Ji; Zhao, Zhi-Dong; Wang, Hao-Ran; Hou, Cheng; Li, Wei; Liu, Chun-Hui
      Abstract: imageBackground: The potential benefit of arthroscopic surgery for osteoarthritic knee associated with medial meniscus tear is controversial. This study was conducted to determine the effect of pre-operative medial meniscus extrusion (MME) on arthroscopic surgery outcomes in the osteoarthritic knee associated with medial meniscus tear during a minimum 4-year follow-up.Methods: This was a retrospective review of a total of 131 patients diagnosed with osteoarthritic knee associated with medial symptomatic degenerative meniscus tear who underwent arthroscopic surgery from January 2012 to December 2014 and were observed for more than 4 years. Patients were classified into two groups: MME ≥3 mm (major MME group, n = 54) and MME
      PubDate: Tue, 05 Nov 2019 00:00:00 GMT-
       
  • Reliability of the measurement of glenoid bone defect in anterior shoulder
           instability

    • Authors: Wu; Yong-Gang; Zhang, Hai-Long; Hao, Ya-Fei; Jiang, Chun-Yan
      Abstract: imageBackground: The size of the glenoid bone defect is an important index in selecting the appropriate treatment for anterior shoulder instability. However, the reliability of glenoid bone defect measurement is controversial. The purpose of the present study was to investigate the reliabilities of measurements of the glenoid bone defect on computed tomography and to explore the predisposing factors leading to inconsistency of these measurements.Methods: The study population comprised 69 consecutive patients who underwent surgery for recurrent anterior shoulder dislocation in Peking University Fourth School of Clinical Medicine from March 2016 to January 2017. The glenoid bone defect was measured by three surgeons on ‘self-confirmed’ and ‘designated’ 3-D en-face views, and repeated after an interval of 3 months. Measurements included the ratio of the defect area to the best-fit circle area, and the ratio of the defect width to the diameter of the best-fit circle. The inter- and intra-observer reliabilities of the measurements were evaluated using intraclass correlation coefficients (ICCs). The maximum absolute inter- and intra-observer differences and the cumulative percentages of cases with inter- and intra-observer differences greater than these respective levels were calculated.Results: Almost all linear defect values were bigger than the areal defect values. The inter-observer ICCs for the areal defect were 0.557 and 0.513 in the ‘self-confirmed’ group and 0.549 and 0.431 in the ‘designated’ group. The inter-observer reliabilities for the linear defect were moderate or fair in the ‘self-confirmed’ group (ICC = 0.446, 0.374) and ‘designated’ group (ICC = 0.402, 0.327). The ICCs for intra-observer measurements were higher than those for inter-observer measurements. The respective maximum inter- and intra-observer absolute differences were 13.9% and 13.2% in the ‘self-confirmed’ group, and 15.8% and 9.8% in the ‘designated’ group.Conclusions: The areal measurement of the glenoid bone defect is more reliable than the linear measurement. The reliability of the glenoid defect areal measurement is moderate or worse, suggesting that a more accurate and objective measurement method is needed in both en-face view and best-fit circle determination. Subjective factors affecting the glenoid bone loss measurement should be minimized.
      PubDate: Tue, 05 Nov 2019 00:00:00 GMT-
       
  • Reversed vascularized second metatarsal flap for reconstruction of Manske
           type IIIB and IV thumb hypoplasia with reduced donor site morbidity

    • Authors: Tong; De-Di; Wu, Le-Hao; Li, Peng-Cheng; Rong, Yan-Bo; Liu, Bo; Lee, WPAndrew; Wei, Qi-Pei; Liu, Lu; Miao, He-Jia; Chen, Shan-Lin
      Abstract: imageBackground: The predominant method for Manske type IIIB and IV thumb hypoplasia is pollicization. However, for those who are not willing to sacrifice the index finger, a method that could reconstruct a functionally capable and aesthetically acceptable thumb remains desirable. This study aimed to investigate and assess the functional and radiographic outcomes of utilizing a reversed vascularized second metatarsal composite flap for thumb reconstruction as a new alternative.Methods: From May 2014 to January 2017, 15 patients with Manske type IIIB or IV thumb hypoplasia who were admitted to the Department of Hand Surgery, Beijing Jishuitan Hospital were included in this study. An osteocutaneous flap containing a section of second metatarsal and its distal head was transferred in reversed position to reconstruct carpometacarpal joint. The donor site was reconstructed by a split half of the third metatarsal. Various functional reconstructions were commenced at second stage. The reconstructed thumbs were evaluated using the Kapandji score, pinch force, and the capacities of performing daily activities through a detailed questionnaire.Results: Among these 15 patients (seven type IIIB and eight type IV), there were ten boys and five girls with median age of 4.2 years (range: 2.0–7.0 years). There were seven right, three left, and five bilateral thumbs for whom only the right thumb received surgery. There were 14 metatarsal flaps survived (14/15). With an average follow-up of 19.2 months, the reconstructed thumbs had acceptable functional and aesthetic outcomes and the donor foot presented in decent appearance without signs of impaired function. All 15 children have improved the Kapandji score (from 0 to an average of 6.7), pinch force (from 0 to an average of 1.5 kg), with ability of grip and pen holding. X-ray indicated continuous bone growth. Patients and parents had good acceptance of the new thumb.Conclusions: Reconstruction of an unstable hypoplastic thumb (Manske type IIIB and IV) with use of a vascularized metatarsal is an effective strategy. It offers an alternative solution for parents insisting on saving the thumb.
      PubDate: Tue, 05 Nov 2019 00:00:00 GMT-
       
  • Features of intra-hamate vascularity and its possible relationship with
           avascular risk of hamate fracture

    • Authors: Xiao; Zi-Run; Zhang, Wei-Guang; Xiong, Ge
      Abstract: imageBackground: The angiography with micro-computed tomography (micro-CT) has been proved its great advantages on investigating the intra-osseous vascularity of carpal bones. But few researches have focused on the intra-hamate vascularity. This study aimed to illustrate the intra-osseous arteries of the hamate and the relationship between the intra-hamate vascularity and the avascular risk of different types of hamate fractures.Methods: Six normal cadaveric hamates were investigated with red lead (Pb3O4) micro-CT angiography. The intra-osseous arteries of specimens were clearly enhanced and the three-dimensional model was reconstructed. In order to study the features of the arterial entrances and intra-hamate vascularity, the diameters, quantities, locations of enhanced arteries, and the locations of transversal/proximal pole fracture lines on the body of the hamate were statistically compared. Besides, in order to analyze the relationship between intra-hamate vascularities and different hamate fractures, 127 cases of hamate fractures who presented in our hospital from March 2003 to June 2017 were retrospectively studied.Results: A total of 94 cases were followed up (range: 4–37 months; mean: 12.4 months) effectively. The overall union rate of hamate fractures was as high as 92.6% (87 of 94 cases), while non-union of fracture on hamate hook was more common (P = 0.031). The arterial entrances were located around the dorsal, volar, radial, ulnar non-articular surfaces of the hamate body and the hook of the hamate. Generally, there were one to two trunk arteries on the volar non-articular surface and one to three trunk arteries on the dorsal non-articular surface. They formed one or two arterial arches, from which some branches were emitted and supplied the proximal parts. The intra-osseous vascularities of the hamate body were generally located in the radial part. The blood supply of the hook was mainly from the volar non-articular surface in most specimens. Hamate fractures could be classified into four types: fractures of the transversal/proximal pole, medial tuberosity, dorsal coronal of the hamate body, and fractures of the hamate hook.Conclusions: This study showed new features of intra-hamate vascularity and the results will guide surgeons to reduce the vascular damage during the hamate fracture operations. The fracture lines of different types of hamate fractures may disrupt the intra-hamate arteries. The intra-hamate vascularities will have different influences on the avascular risks of different hamate fractures.
      PubDate: Tue, 05 Nov 2019 00:00:00 GMT-
       
  • Plant homeodomain finger protein 23 inhibits autophagy and promotes
           apoptosis of chondrocytes in osteoarthritis

    • Authors: Li; Xiang; Yang, Xin; Maimaitijuma, Talatibaike; Cao, Xiang-Yu; Jiao, Yang; Wu, Hao; Meng, Zhi-Chao; Liu, Heng; Guan, Zhen-Peng; Cao, Yong-Ping
      Abstract: imageBackground: Plant homeodomain finger protein 23 (PHF23) is a novel autophagy inhibitor gene that has been few studied with respect to orthopedics. This study was to investigate the expression of PHF23 in articular cartilage and synovial tissue, and analyze the relationship between PHF23 and chondrocyte autophagy in osteoarthritis (OA).Methods: Immunohistochemical staining and western blot were applied to show the expression of PHF23 in cartilage of different outbridge grades and synovial tissue of patient with OA and healthy control. The normal human chondrocyte pre-treated with rapamycin or 3-methyladenine, treated with interleukin-1β (IL-1β). IL-1β induced expression level of PHF23 and autophagy-related proteins light chain 3B-I (LC3B-I), LC3B-II, and P62, were examined by Western blot. A PHF23 gene knock-down model was constructed with small interfering RNA. Western blot was performed to detect the efficiency of PHF23 and the impact of PHF23 knockout on IL-1β-induced expression of autophagy-related and apoptotic-related proteins in chondrocyte.Results: The expression of PHF23 was significantly increased in the high-grade cartilage and synovial tissue of patients with OA. The IL-1β-induced expression of PHF23 was gradually enhanced with time. The level of LC3B-II, P62 changed with time. After knockdown of PHF23, the level of autophagy-related proteins increased and apoptotic-related proteins decreased in IL-1β-induced OA-like chondrocytes.Conclusions: The expression of PHF23 increased in human OA cartilage and synovium, and was induced by IL-1β through inflammatory stress. PHF23 can suppress autophagy of chondrocytes, and accelerate apoptosis.
      PubDate: Tue, 05 Nov 2019 00:00:00 GMT-
       
  • A quantitative biomechanical study of positive buttress techniques for
           femoral neck fractures: a finite element analysis

    • Authors: Wang; Gang; Wang, Bin; Tang, Yong; Yang, Hui-Lin
      Abstract: imageBackground: Refractory femoral neck fractures cannot be anatomically reduced by closed traction reduction which may affect fracture healing. We evaluated the biomechanical effects of positive, negative, and anatomic reduction of various degrees of displacement in Pauwels I femoral neck fractures by a finite element analysis.Methods: Five reduction models of Pauwels type I femoral neck fracture were established using the Mimics 17.0 (Materialize, Leuven, Belgia) and Hypermesh 12.0 (Altair Engineering, Troy, MI, USA). According to the degree of fracture displacement, there were three models of positive support, an anatomic reduction model, and a negative 2 mm reduction model. Finite element analysis was conducted using the ABAQUS 6.9 software (Simulia, Suresnes, France). The von Mises stress distribution and the stress peak of internal fixation in different models, the displacement between fracture blocks, and the principal strain of the femoral neck cancellous bone model were recorded under the axial stress of 2100 N.Results: The peak von Mises stress on screw of each model was located at the thread of the screw tip. The peak von Mises stress was the lowest at the tip of the anatomic reduction model screw (261.2 MPa). In the positive 4 mm model, the von Mises stress peak was the highest (916.1 MPa). The anatomic reduction model showed the minimum displacement (0.388 mm) between fracture blocks. The maximum displacement was noted in the positive 4 mm model (0.838 mm). The displacement in the positive 3 mm model (0.721 mm) was smaller than that in the negative 2 mm model (0.786 mm). Among the five models, the strain area of the femoral neck cancellous bone was mainly concentrated around the screw hole, and the area around the screw hole could be easily cut.Conclusions: Compared with negative buttress for femoral neck fracture, positive buttress can provide better biomechanical stability. In Pauwel type I fracture of femoral neck, the range of positive buttress should be controlled below 3 mm as far as possible.
      PubDate: Tue, 05 Nov 2019 00:00:00 GMT-
       
  • Dual pitch titanium-coated pedicle screws improve initial and early
           fixation in a polyetheretherketone rod semi-rigid fixation system in sheep
           

    • Authors: Wang; Wen-Tao; Guo, Chi-Hua; Duan, Kun; Ma, Min-Jie; Jiang, Yong; Liu, Tuan-Jiang; Liu, Ji-Jun; Hao, Ding-Jun
      Abstract: imageBackground: Reports on the efficacy of modifications to the thread design of pedicle screws are scarce. The aim of the study was to investigate initial and early fixation of pedicle screws with a plasma-sprayed titanium coating and dual pitch in the pedicle region (dual pitch titanium-coated pedicle screw [DPTCPS]) in a polyetheretherketone (PEEK) rod semi-rigid fixation system.Methods: Fifty-four sheep spine specimens and 64 sheep were used to investigate initial (“0-week” controls) and early (post-operative 6 months) fixation, respectively. Sheep were divided into dual pitch pedicle screw (DPPS), standard pitch pedicle screw (SPPS), DPTCPS, and standard pitch titanium-coated pedicle screw (SPTCPS) groups. Specimens/sheep were instrumented with four screws and two rods. Biomechanical evaluations were performed, and histology at the implant-bone interface was investigated.Results: At 0-week, mean axial pull-out strength was significantly higher for the DPTCPS and SPTCPS than the SPPS (557.0 ± 25.2 vs. 459.1 ± 19.1 N, t = 3.61, P 
      PubDate: Tue, 05 Nov 2019 00:00:00 GMT-
       
  • Roles of extra-cellular signal-regulated protein kinase 5 signaling
           pathway in the development of spinal cord injury

    • Authors: Liu; Chen-Jun; Liu, Hai-Ying; Zhu, Zhen-Qi; Zhang, Yuan-Yuan; Wang, Kai-Feng; Xia, Wei-Wei
      Abstract: imageBackground: In consideration of characteristics and functions, extra-cellular signal-regulated protein kinase 5 (ERK5) signaling pathway could be a new target for spinal cord injury (SCI) treatment. Our study aimed to evaluate the roles of ERK5 signaling pathway in secondary damage of SCI.Methods: We randomly divided 70 healthy Wistar rats into five groups: ten in the blank group, 15 in the sham surgery + BIX02188 (sham + B) group, 15 in the sham surgery + dimethyl sulfoxide (DMSO; sham + D) group, 15 in the SCI + BIX02188 (SCI + B) group, and 15 in the SCI + DMSO (SCI + D) group. BIX02188 is a specific inhibitor of the ERK5 signaling pathway. SCI was induced by the application of vascular clips (with the force of 30 g) to the dura on T10 level, while rats in the sham surgery group underwent only T9-T11 laminectomy. BIX02188 or DMSO was intra-thecally injected at 1, 6, and 12 h after surgery or SCI. Spinal cord samples were taken for testing at 24 h after surgery or SCI.Results: Expression of phosphorylated-ERK5 (p-ERK5) significantly increased after SCI. Application of BIX02188 indeed inhibited ERK5 signaling pathway and reduced the degree of spinal cord tissue injury, neutrophil infiltration and proinflammatory cytokine expression, nuclear factor-κB (NF-κB) activation and apoptosis (measured by TdT-mediated 2′-deoxyuridine 5′-triphosphate nick-end labeling, expression of Fas-ligand, BCL2-associated X [Bax], and B-cell lymphoma-2 [Bcl-2]). Double immunofluorescence revealed activation of ERK5 in neurons and microglia after SCI.Conclusion: ERK5 signaling pathway was activated in spinal neurons and microglia, contributing to secondary injury of SCI. Moreover, inhibition of ERK5 signaling pathway could alleviate the degree of SCI, which might be related to its regulation of infiltration of inflammatory cells and release of inflammatory cytokines, expression of NF-κB and cell apoptosis.
      PubDate: Tue, 05 Nov 2019 00:00:00 GMT-
       
  • Correlation of serum vitamin D, adipose tissue vitamin D receptor, and
           peroxisome proliferator-activated receptor γ in women with gestational
           diabetes mellitus

    • Authors: Wang; Hui-Yan; She, Guang-Tong; Sun, Li-Zhou; Lu, Hao; Wang, Yin-Pin; Miao, Jun; Liu, Ke-Zhuo; Sun, Cai-Feng; Ju, Hui-Hui
      Abstract: imageBackground: Gestational diabetes mellitus (GDM) is a common complication during pregnancy. Obesity and overweight are closely related to metabolic diseases and diabetes. However, the role of adipose tissue in the pathogenesis of GDM remains to be studied. The aim of this study was to investigate the correlation of vitamin D (VD) levels, VD receptor (VDR), and peroxisome proliferator-activated receptor γ (PPARγ) expression with GDM in overweight or obese women.Methods: One hundred and forty pregnant women with full-term single-birth cesarean-section were selected as the study subjects and grouped (70 GDM women, including 35 non-overweight/non-obese women [group G1] and 35 women with overweight or obesity [group G2]; 70 pregnant women with normal glucose tolerance, including 35 non-overweight/non-obese women [group N1] and 35 overweight/obese women [group N2]). The levels of serum VD, blood biochemistry, and adiponectin were compared in these women. Subcutaneous adipose tissue was isolated from the abdominal wall incision. VDR and PPARγ messenger RNA (mRNA) transcript levels in these adipose tissues were quantified by real-time polymerase chain reaction. The differences between the levels of PPARγ protein and phosphorylated PPARγ Ser273 were detected by Western blotting.Results: The serum VD level of GDM women was lower in comparison to that of women with normal glucose tolerance (G1 vs. N1: 20.62 ± 7.87 ng/mL vs. 25.85 ± 7.29 ng/mL, G2 vs. N2: 17.06 ± 6.74 ng/mL vs. 21.62 ± 7.18 ng/mL, P 
      PubDate: Tue, 05 Nov 2019 00:00:00 GMT-
       
  • Abnormal brain activity in rats with sustained hypobaric hypoxia exposure:
           a resting-state functional magnetic resonance imaging study

    • Authors: Yuan; Hui; Wang, Yong; Liu, Peng-Fei; Yue, Yun-Long; Guo, Jin-Song; Wang, Zhen-Chang
      Abstract: imageBackground: Hypobaric hypoxia (HH) exposure at high altitudes can result in a decline in cognitive function, which may have a serious impact on the daily life of people who migrate to high altitudes. However, the specific HH-induced changes in brain function remain unclear. This study explored changes in brain activity in rats exposed to a sustained HH environment using functional magnetic resonance imaging (fMRI).Methods: Healthy male rats (8 weeks old) were randomly divided into a model group and a control group. A rat model of cognitive impairment induced by sustained HH exposure was established. The control and model groups completed training and testing in the Morris water maze (MWM). A two-sample t-test for between-group difference comparisons was performed. Repeated measures analyses of variance for within-group comparisons were performed and post-hoc comparisons were made using the Tukey test. Between-group differences in spontaneous brain activity were assessed using a voxel-wise analysis of resting-state fMRI (rs-fMRI), combined with analyses of the fractional amplitude of low frequency fluctuations (fALFF) in statistical parametric mapping.Results: In the MWM test, the escape latencies of the model group were significantly longer compared with those of the control group (control group vs. model group, day 1: 21.6 ± 3.3 s vs. 40.5 ± 3.4 s, t = –11.282; day 2: 13.5 ± 2.2 s vs. 28.7 ± 5.3 s, t = –7.492; day 3: 10.5 ± 2.8 s vs. 22.6 ± 6.1 s, t = –5.099; day 4: 9.7 ± 2.5 s vs. 18.6 ± 5.2 s, t = –4.363; day 5: 8.8 ± 2.7 s vs. 16.7 ± 5.0 s, t = –3.932; all P 
      PubDate: Tue, 05 Nov 2019 00:00:00 GMT-
       
  • Effect of adenovirus-mediated overexpression of PTEN on brain oxidative
           damage and neuroinflammation in a rat kindling model of epilepsy

    • Authors: Wu; Zhi-Sheng; Huang, Wen-Li; Gong, Shu-Jie
      Abstract: imageBackground: Epilepsy is a chronic and severe neurological disorder. Phosphatase and tensin homolog deleted on chromosome ten (PTEN)-deficient mice exhibit learning and memory deficits and spontaneous epilepsy. The aim of this study was to investigate the role of PTEN in brain oxidative damage and neuroinflammation in a rat model of epilepsy.Methods: An adenovirus (Ad)-PTEN vector was constructed, and status epilepticus (SE) was induced in 41 model rats using lithium chloride-pilocarpine. Thirty-six SE rats were then allocated into the Ad-PTEN, Ad-LacZ, and SE groups, those were administered intracerebroventricular injections of Ad-PTEN, Ad-enhanced green fluorescent protein, and phosphate buffer saline, respectively. The normal group was comprised of healthy Sprague-Dawley rats. Nissl staining was conducted to evaluate neuronal damage, and immunohistochemistry was conducted to observe the morphology of cells in the hippocampal CA1 region and the distribution of ionized calcium-binding adaptor molecule 1 (Iba1) and ED1 (rat homologue of human CD68). Levels of apoptosis-related proteins, inflammatory-related factors, and oxidative stress-related markers (reactive oxygen species [ROS], glutathione [GSH], superoxide dismutase [SOD], and malondialdehyde [MDA]) were measured. Comparisons between multiple groups were conducted using one-way analysis of variance (ANOVA), and pairwise comparisons after ANOVA were conducted using the Tukey multiple comparisons test.Results: After SE induction, PTEN expression in the rat brain exhibited a four-fold decrease (P = 0.000) and the expression of both Iba1 and ED1 increased. Furthermore, significant neuronal loss, oxidative damage, and neuroinflammation were observed in the SE rat brain. After intracerebroventricular injection of Ad-PTEN, PTEN expression exhibited a three-fold increase (P = 0.003), and the expression of both Iba1 and ED1 decreased. Additionally, neurons were restored and neuronal apoptosis was inhibited. Furthermore, ROS and MDA levels decreased, GSH level and SOD activity increased, and neuroinflammation was reduced.Conclusion: Our study demonstrated that brain oxidative damage and neuroinflammation in SE rats were ameliorated by intracerebroventricular injection of Ad-PTEN.
      PubDate: Tue, 05 Nov 2019 00:00:00 GMT-
       
  • Law of dynamic deformation of bone

    • Authors: Wang; Juan; Chen, Wei; Hou, Zhi-Yong; Lyu, Hong-Zhi; Zhu, Yan-Bin; Zhang, Ying-Ze
      Abstract: No abstract available
      PubDate: Tue, 05 Nov 2019 00:00:00 GMT-
       
  • Development of Mandarin speech test materials for civilian pilots in China

    • Authors: Hu; Mo-Sheng; Chen, Jing; Yang, Xiu-Yun; Wang, Lei; Cao, Wen; Bai, Yin; Ma, Feng-Jie; Qin, Cai-Hong; Zhao, Shou-Qin; Zhang, Hua
      Abstract: imageNo abstract available
      PubDate: Tue, 05 Nov 2019 00:00:00 GMT-
       
  • Safety and efficacy of three-dimensional printed patient-specific drilling
           templates for expansive open-door laminoplasty

    • Authors: Huang; Kang-Kang; Rong, Xin; Liu, Hao; Wang, Bei-Yu; Chen, Hua; Hong, Ying
      Abstract: imageNo abstract available
      PubDate: Tue, 05 Nov 2019 00:00:00 GMT-
       
  • Surgical treatment of a cervical spine fracture in an ankylosing
           spondylitis patient with severe global spine kyphosis and chin-on-chest
           deformity

    • Authors: Guo; Xin-Hu; Ji, Hong-Quan
      Abstract: imageNo abstract available
      PubDate: Tue, 05 Nov 2019 00:00:00 GMT-
       
 
 
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