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Orthopaedic Surgery

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https://www.readbyqxmd.com/read/28093896/intravenous-combined-with-topical-administration-of-tranexamic-acid-in-primary-total-hip-arthroplasty-a-randomized-controlled-trial
#1
Yi Zeng, Hai-Bo Si, Bin Shen, Jing Yang, Zong-Ke Zhou, Peng-de Kang, Fu-Xing Pei
OBJECTIVE: Although there are still some controversies, large previous studies have confirmed that intravenous (i.v.) tranexamic acid (TXA) can effectively reduce blood loss and transfusions in total hip arthroplasty (THA) without increasing the risk of deep venous thrombosis. However, few studies have investigated the combination of i.v. and topical application of TXA in primary THA. The purpose of our current study is to examine whether i.v. combined with topical administration of TXA decreases postoperative blood loss and transfusion rates after THA...
January 17, 2017: Orthopaedic Surgery
https://www.readbyqxmd.com/read/28079306/open-dislocation-of-ankle-without-fracture-treated-with-an-external-fixator
#2
Emrah Sayit, Asli Tanrivermis Sayit, Elcin Zan
Ankle dislocations are orthopedic emergencies that require immediate treatment to avoid neurovascular impairment. They are usually accompanied by one or more comminuted fractures of the ankle mortis. In rare circumstances, such as high-energy trauma, the ankle dislocations may not be accompanied by concomitant malleolar fractures and, thus, are named "pure ankle dislocations". We presented a very rare and interesting case of an open medial dislocation of the ankle without associated fracture in an 18-year-old man with no known predisposing risk factors...
January 12, 2017: Orthopaedic Surgery
https://www.readbyqxmd.com/read/28067466/anterior-lumbar-interbody-fusion-integrated-screw-cages-intrinsic-load-generation-subsidence-and-torsional-stability
#3
Yusuf Assem, Matthew H Pelletier, Ralph J Mobbs, Kevin Phan, William R Walsh
OBJECTIVE: To perform a repeatable idealized in vitro model to evaluate the effects of key design features and integrated screw fixation on unloaded surface engagement, subsidence, and torsional stability. METHODS: We evaluated four different stand-alone anterior lumbar interbody fusion (ALIF) cages with two, three, and four screw designs. Polyurethane (saw-bone) foam blocks were used to simulate the vertebral bone. Fuji Film was used to measure the contact footprint, average pressure, and load generated by fixating the cages with screws...
January 9, 2017: Orthopaedic Surgery
https://www.readbyqxmd.com/read/28032714/n-acetylcysteine-attenuates-cobalt-nanoparticle-induced-cytotoxic-effects-through-inhibition-of-cell-death-reactive-oxygen-species-related-signaling-and-cytokines-expression
#4
Ya-Ke Liu, Hong-Wei Yang, Meng-Hong Wang, Wei Wang, Fan Liu, Hui-Lin Yang
OBJECTIVE: Complex cobalt-chromium alloys, bearing surfaces of the second-generation metal-on-metal (MoM) hip prostheses, are subject to wear and generate cobalt nanoparticles (CoNPs). CoNPs could reduce cellular viability, activate the mitogen-activated protein kinase (MAPK) pathway and increase cell apoptosis via reactive oxygen species (ROS). However, the detailed mechanisms of ROS functioning on CoNP-mediated signaling molecules and cytotoxicity has not yet been fully demonstrated...
November 2016: Orthopaedic Surgery
https://www.readbyqxmd.com/read/28032713/arthroscopic-retrieval-of-over-100-loose-bodies-in-shoulder-synovial-chondromatosis-a-case-report-and-review-of-literature
#5
Pradyumna Raval, Ashish Vijayan, Arpit Jariwala
Synovial chondromatosis is a rare and benign condition of unknown cause. It is also known as synovial osteochondromatosis. It is characterized by involvement of the synovial tissue, which lines various joints of our body. Initial symptoms range from pain in the joint, locking of the joint at times, especially the knee, to arthritis of the joint that is a late feature of this condition. Although large joints such as the knee are commonly affected, involvement of the shoulder joint is a rare occurrence. Historically an open arthrotomy was preferred for removal of loose bodies coupled with a thorough synovectomy...
November 2016: Orthopaedic Surgery
https://www.readbyqxmd.com/read/28032712/relationship-between-the-patellar-ridge-and-the-femoral-trochlea-in-the-patellar-tracking
#6
Xiao-Meng Wang, Hui-Xin Liu, Jing-Hui Niu, Gu-Man Duan, Fei Wang
OBJECTIVE: To investigate the anatomic morphology of the patellar ridge and how it matches the femoral trochlea in patellar tracking. METHOD: We selected 40 volunteers, 20 males (age, 28 ± 5 years) and 20 female (age, 27 ± 6 years), who were completely asymptomatic with normal knee structures. We measured the right or left legs of volunteers, and the region from the distal femur to the tibial tuberosity was scanned by computed tomography (CT) with flexion at 0°, 30°, 60°, and 90°...
November 2016: Orthopaedic Surgery
https://www.readbyqxmd.com/read/28032711/treatment-for-periprosthetic-cyst-after-total-hip-arthroplasty-analysis-of-six-cases
#7
Wei-Ding Cui, Wei-Min Fan, Zhe-Feng Chen, Feng Liu
The present study investigates the pathogenesis of periprosthetic cysts after total hip replacement, and explores appropriate treatment appoaches. Six patients with periprosthetic cysts after total hip arthroplasty were treated at the First Affiliated Hospital of Nanjing Medical University between 2009 and 2014. During surgery, it was found that all cysts communicated with the hip and the hip prosthesis could be seen after cyst excision. Four patients simply underwent cyst excision, and light red liquid was found in the cyst...
November 2016: Orthopaedic Surgery
https://www.readbyqxmd.com/read/28032710/anterior-and-posterior-instrumentation-with-different-debridement-and-grafting-procedures-for-multi-level-contiguous-thoracic-spinal-tuberculosis
#8
Xu Cui, Li-Tao Li, Yuan-Zheng Ma
OBJECTIVE: To evaluate the clinical outcomes of anterior and posterior instrumentation with different debridement and graft fusion methods for multi-level contiguous thoracic spinal tuberculosis. METHODS: We retrospectively evaluated 81 patients with multi-level contiguous thoracic spinal tuberculosis who underwent anterior or posterior instrumentation combined with different methods of debridement, decompression, and graft fusion from January 2002 to December 2012...
November 2016: Orthopaedic Surgery
https://www.readbyqxmd.com/read/28032709/relationship-between-patellar-tracking-and-the-screw-home-mechanism-of-tibiofemoral-joint
#9
Li-Kang Zhang, Xiao-Meng Wang, Ying-Zhen Niu, Hui-Xin Liu, Fei Wang
OBJECTIVE: To demonstrate the effect of the screw-home motion on the stability of the patellofemoral joint, and investigate its mechanism of regulation of patellar tracking. METHODS: Twenty volunteers who met the criteria were examined. All subjects had axial computed tomography (CT) scanning performed on bilateral knees at 0° and 30° of flexion. Scanning began above the femorotibial articulation and femoral trochlear groove, and moved sequentially down to the level of the anterior tibial tubercle...
November 2016: Orthopaedic Surgery
https://www.readbyqxmd.com/read/28032708/what-role-does-low-bone-mineral-density-play-in-the-killer-turn-effect-after-transtibial-posterior-cruciate-ligament-reconstruction
#10
Yue Li, Xing-Zuo Chen, Jin Zhang, Guan-Yang Song, Xu Li, Hua Feng
OBJECTIVE: To explore the mechanism of the "killer turn", which is reported to be a reason for postoperative residual laxity after transtibial posterior cruciate ligament (PCL) reconstruction, in a low bone mineral density (BMD) condition. METHODS: A total of 80 skeletally mature female New Zealand white rabbits were included for biomechanical evaluation after transtibial PCL reconstructions. The subjects were equally divided into low BMD (n = 40) and control groups (n = 40)...
November 2016: Orthopaedic Surgery
https://www.readbyqxmd.com/read/28032707/surgical-technique-for-subtrochanteric-fracture-of-femur
#11
Peng-Cheng Wang, Dong Ren, Chao-Hui Song, Bing Zhou
A 56-year-old woman had fell over herself 4 h prior to her presentation to our hospital. The diagnosis was a subtrochanteric fracture of the right femur (AO-32-A3). The patient was placed in a supine position was set up on a fracture traction table after general anesthesia. The right leg was placed in abduction while the left leg was positioned so that there was flexion of the knee and hip joint. The C-arm was placed on the left side. The surgical field was sterilized and draped. Deformity and external rotation are always present for this type of fracture, so the first step was to place a joystick in the proximal fragment to correct the external rotation...
November 2016: Orthopaedic Surgery
https://www.readbyqxmd.com/read/28032706/correlations-of-japanese-orthopaedic-association-scoring-systems-with-gait-parameters-in-patients-with-degenerative-spinal-diseases
#12
Chen-Fan Zheng, Yan-Cheng Liu, Yong-Cheng Hu, Qun Xia, Jun Miao, Ji-Dong Zhang, Kuan Zhang
OBJECTIVE: Japanese Orthopaedic Association (JOA) scoring systems were developed to evaluate the neurological function of patients with cervical or lumbar degeneration. As patient-based and multi-dimensional clinical evaluation tools, these systems should be capable of reflecting the walking disability of patients. The association between JOA scores and gait parameters, however, are not well characterized. The purpose of this study was to determine the correlations between JOA scores and gait parameters of patients with cervical spondylotic myelopathy (CSM) and lumbar intervertebral disc herniation (LDH)...
November 2016: Orthopaedic Surgery
https://www.readbyqxmd.com/read/28032705/surgical-technique-of-total-knee-arthroplasty-without-soft-tissue-balance
#13
Hong-Tao Xu, Jiang-Tao Dong, Juan Wang, Shi-Jun Gao
Total knee arthroplasty (TKA) without soft tissue balance can create a balanced knee to a mechanical axis of near neutral with bone cuts, and remove osteophytes thoroughly. In this study, the authors present detailed steps for performing TKA. The attached video demonstrates the TKA procedure. The patient is a 77-year-old man who had suffered from knee pain for 12 years. Physical examination showed the Apley test to be positive and that the range of motion (ROM) decreased. An X-ray filmed at the positive lateral of the knee joint and the double lower extremity revealed a progression of degenerative osteoarthritis with genu varum...
November 2016: Orthopaedic Surgery
https://www.readbyqxmd.com/read/28032704/treatment-and-management-of-osteoporotic-fractures-a-nation-wide-survey-of-484-senior-orthopaedists-in-china
#14
Yi Man, Wei Pan, Jin Lu, Sen-Yuan Li, Pian Zhang, Jun-Zhe Guo, Shu-Fang Yu, Bei Zhang, En Xiao, Chao Zhang, Wei Zuo, He-Juan Jin, Yi Chen, Bin Wu, Xiao-En Shi, Di Hong, Xun Liu, Ying-Xu Gao, Jing Li, Lu Yin, Qing-Yun Xue
OBJECTIVE: To investigate the treatment given to osteoporotic fracture patients by orthopaedists at major hospitals in China. METHODS: A 25-item quantitative questionnaire survey, categorized into five domains, including primary purpose of osteoporosis treatment, anti-osteoporosis therapy, calcium and vitamin D supplement, monitoring of osteoporosis, and knowledge of osteoporosis treatment, was designed to elicit information on orthopaedists' views on the treatment of osteoporotic fracture...
November 2016: Orthopaedic Surgery
https://www.readbyqxmd.com/read/28032703/comparison-of-anterior-cervical-discectomy-and-fusion-versus-posterior-cervical-foraminotomy-in-the-treatment-of-cervical-radiculopathy-a-systematic-review
#15
REVIEW
Wei-Jun Liu, Ling Hu, Po-Hsin Chou, Jun-Wen Wang, Wu-Sheng Kan
Controversy remains over whether anterior cervical discectomy and fusion (ACDF) or posterior cervical foraminotomy (PCF) is superior for the treatment of cervical radiculopathy. We therefore performed a systematic review including three prospective randomized controlled trails (RCT) and seven retrospective comparative studies (RCoS) by searching PubMed and EMBASE. These studies were assessed on risk of bias according to the Cochrane Handbook for Systematic Reviews of Interventions, and the quality of evidence and level of recommendation were evaluated according to the GRADE approach...
November 2016: Orthopaedic Surgery
https://www.readbyqxmd.com/read/28032702/thoracic-endoscopic-assisted-mini-open-surgery-for-thoracic-and-thoracolumbar-spinal-cord-compression
#16
Bao-Shan Xu, Hai-Wei Xu, Qiu-Ming Yuan, Yue Liu, Qiang Yang, Hong-Feng Jiang, Dong-Bin Wang, Ning Ji, Xin-Long Ma, Yang Zhang
Intervertebral disc herniation is a common cause of spinal cord compression, especially for the thoracic and thoracolumbar spinal cord, which has limited buffer space in the spinal canal. Spinal cord compression usually causes decreased sensation and paralysis of limbs below the level of compression, urinary and fecal incontinence, and/or urinary retention, which brings great suffering to the patients and usually requires surgical intervention. Thoracotomy or abdominothoracic surgery is usually performed for the thoracolumbar cord compression caused by hard intervertebral disc herniation...
November 2016: Orthopaedic Surgery
https://www.readbyqxmd.com/read/28032701/erratum
#17
(no author information available yet)
No abstract text is available yet for this article.
November 2016: Orthopaedic Surgery
https://www.readbyqxmd.com/read/28032700/management-of-acute-hematogenous-infection-following-total-knee-arthroplasty-a-case-series-of-11-patients
#18
Rui He, Liu Yang, Lin Guo, Hao Chen, Ying Zhang, Dian-Ming Jiang
OBJECTIVE: Acute hematogenous infection is a devastating complication that can occur after total knee arthroplasty (TKA). The best strategies for management of this infection remain controversial. Two-stage revision has been well described as the gold standard for the management of chronic late infections. However, there is a paucity of information presently available on the management and outcomes of patients treated for acute hematogenous infections. The purpose of the present study was to report the outcome of acute hematogenous infections following TKA with the treatment of irrigation, debridement, and retention of the prosthetic components...
November 2016: Orthopaedic Surgery
https://www.readbyqxmd.com/read/28032699/an-analysis-of-paravertebral-ossification-in-cervical-artificial-disc-replacement-a-novel-classification-based-on-computed-tomography
#19
Wei Tian, Ming-Xing Fan, Ya-Jun Liu, Xiao Han, Kai Yan, Han Wang, Yan-Wei Lyu
OBJECTIVE: Cervical artificial disc replacement (CADR) is a new technology in cervical spine surgery. However, CADR may result in paravertebral ossification (PO) after surgery and affect the mobility of the related spinal segments. The present widely used assessment method based on X-ray tomography cannot provide the position information of PO, and also PO detection rates by X-ray are low. The incidence of PO varies dramatically between studies. This study built a novel classification system based on cervical computer tomography (CT) scan to re-evaluate the incidence of PO and its influence on CADR, and also analyzed the predisposing factors of PO...
November 2016: Orthopaedic Surgery
https://www.readbyqxmd.com/read/28032698/thoracic-vertebral-hemangioma-with-spinal-cord-compression-multidisciplinary-surgical-treatment-and-follow-up-of-six-patients
#20
Hui-Lin Zhang, Yong-Cheng Hu, Rajendra Aryal, Xin He, Deng-Xing Lun, Li-Ming Zhao
OBJECTIVE: To provide useful insights of multidisciplinary surgical treatment for vertebral hemangioma with spinal cord compression. METHODS: From 2009 to 2014, data on six patients who were diagnosed with cord compression vertebral hemangioma were reviewed and analyzed retrospectively. There were five women and one man with a mean age of 48.6 years (range, 26-68 years). All the patients were treated by multidisciplinary approach, including use of gelfoam, pedicle screw instrumentation, vertebroplasty, and decompression laminectomy...
November 2016: Orthopaedic Surgery
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