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https://www.readbyqxmd.com/read/27933270/compliance-control-based-on-pso-algorithm-to-improve-the-feeling-during-physical-human-robot-interaction
#1
Zhongliang Jiang, Yu Sun, Peng Gao, Ying Hu, Jianwei Zhang
Robots play more important roles in daily life and bring us a lot of convenience. But when people work with robots, there remain some significant differences in human-human interactions and human-robot interaction. It is our goal to make robots look even more human-like. We design a controller which can sense the force acting on any point of a robot and ensure the robot can move according to the force. First, a spring-mass-dashpot system was used to describe the physical model, and the second-order system is the kernel of the controller...
2016: Robotics and Biomimetics
https://www.readbyqxmd.com/read/27930594/revision-surgery-after-pregnancy-in-a-patient-with-congenital-kyphoscoliosis-a-case-report
#2
Zhikun Li, Fei Wang, Wei Xu, Yifan Li, Xiaodong Zhu
RATIONALE: Rod breakage during pregnancy and delivery has never been described in a patient who has undergone surgery for congenital scoliosis (CS). Here, we present an unusual but significant case of revision surgery. PATIENT CONCERNS: A 29-year-old woman presented with low back pain during pregnancy after posterior osteotomy, correction and fusion at T9 to L5 for CS. Radiographs during follow-up, 4 months after the patient gave birth, demonstrated rod breakage...
December 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27928911/soft-silicone-foam-dressing-is-more-effective-than-polyurethane-film-dressing-for-preventing-intraoperatively-acquired-pressure-ulcers-in-spinal-surgery-patients-the-border-operating-room-spinal-surgery-boss-trial-in-japan
#3
Mine Yoshimura, Norihiko Ohura, Junko Tanaka, Shoichi Ichimura, Yusuke Kasuya, Oruto Hotta, Yu Kagaya, Takuya Sekiyama, Mitsuko Tannba, Nao Suzuki
Preventing intraoperatively acquired pressure ulcers (IAPUs) in patients undergoing spinal surgery in the prone position using a Relton-Hall frame is challenging. We investigated the efficacy of soft silicone foam dressings in preventing IAPUs. A prospective dual-center sham study was conducted among patients undergoing elective spinal surgery in a general hospital and a university hospital in Japan. The incidence of IAPUs that developed when soft silicone foam dressings and polyurethane film dressings were used was compared on two sides in the same patient...
December 7, 2016: International Wound Journal
https://www.readbyqxmd.com/read/27927547/prevalence-of-scoliosis-and-thoracolumbar-kyphosis-in-patients-with-achondroplasia
#4
Bilal I Khan, Mary T Yost, Haleh Badkoobehi, Michael C Ain
STUDY DESIGN: Retrospective chart review, case series. OBJECTIVES: To determine the prevalence of scoliosis and kyphosis in patients with achondroplasia. SUMMARY OF BACKGROUND DATA: There is little published research on the prevalence of scoliosis and thoracolumbar kyphosis in patients with achondroplasia. METHODS: The authors retrospectively reviewed charts of 459 patients with achondroplasia who were seen by the senior author, an orthopedic surgeon, from 1999 through 2013, at a tertiary referral center...
March 2016: Spine Deformity
https://www.readbyqxmd.com/read/27927521/reoperation-rates-after-long-posterior-spinal-fusion-use-of-recombinant-bone-morphogenetic-protein-in-idiopathic-and-non-idiopathic-scoliosis
#5
Justin C Paul, Baron S Lonner, Shaleen Vira, Ian David Kaye, Thomas J Errico
INTRODUCTION: Bone morphogenetic protein (BMP) can increase the likelihood of solid arthrodesis in spinal surgery. This would imply fewer reoperations for pseudarthrosis, but small cohort sizes are inadequate to monitor these events. We sought to examine adolescent idiopathic (AIS) and non-idiopathic scoliosis (NIS) for reoperation events with and without the use of BMP using a large statewide database. METHODS: The 2008-2011 New York State Inpatient Database was queried using International Classification of Diseases, Ninth Revision, Clinical Modification (ICD-9-CM) codes...
July 2016: Spine Deformity
https://www.readbyqxmd.com/read/27926670/clinical-and-radiographical-differences-between-thoracic-idiopathic-spinal-cord-herniation-and-spinal-arachnoid-cyst
#6
Hiroaki Nakashima, Shiro Imagama, Hideki Yagi, Fumihiko Kato, Tokumi Kanemura, Koji Sato, Noriaki Kawakami, Mitsuhiro Kamiya, Hisatake Yoshihara, Kenyu Ito, Yukihiro Matsuyama, Yoshihiro Nishida, Naoki Ishiguro
STUDY DESIGN: Retrospective multicenter case-controlled study OBJECTIVE.: The aim of this study was to investigate the clinical and radiographical differences between thoracic idiopathic spinal cord herniation (ISCH) and spinal arachnoid cyst (SAC). SUMMARY AND BACKGROUND DATA: ISCH and SAC are relatively rare diseases. Preoperative misdiagnose was frequently reported in both, however these clinical and radiographical differences remain unclear. METHODS: Out of 30,469 patients who underwent spinal surgery, 18 (0...
December 6, 2016: Spine
https://www.readbyqxmd.com/read/27922581/pseudomeningocele-aspiration-and-blood-patch-effectively-treats-positional-headache-associated-with-post-operative-lumbosacral-pseudomeningocele
#7
Stephen Sandwell, Kevin Walter, Per-Lennart Westesson
STUDY DESIGN: Retrospective chart review with limited prospective follow-up survey. OBJECTIVE: To evaluate the efficacy and safety of blood patch injection for the treatment of positional headaches caused by postoperative lumbosacral pseudomeningoceles. SUMMARY OF BACKGROUND DATA: Pseudomeningocele is one of the most common complications after posterior lumbosacral spinal surgery. Common treatments include bedrest, abdominal binder use, subarachnoid lumbar drainage, and surgical re-exploration for durotomy closure...
December 2, 2016: Spine
https://www.readbyqxmd.com/read/27916869/error-analysis-and-experimental-study-of-a-bi-planar-parallel-mechanism-in-a-pedicle-screw-robot-system
#8
Qingjuan Duan, Zhijiang Du, Hongjian Yu, Yongfeng Wang, Wei Dong
Due to the urgent need for high precision surgical equipment for minimally invasive spinal surgery, a novel robot-assistant system was developed for the accurate placement of pedicle screws in lumbar spinal surgeries. The structure of the robot was based on a macro-micro mechanism, which includes a serial mechanism (macro part) and a bi-planar 5R parallel mechanism (micro part). The macro part was used to achieve a large workspace, while the micro part was used to obtain high stiffness and accuracy. Based on the transfer function of dimension errors, the factors affecting the accuracy of the end effectors were analyzed...
November 30, 2016: Sensors
https://www.readbyqxmd.com/read/27913262/neurosurgeons-in-japan-are-exclusively-brain-surgeons
#9
REVIEW
Shunji Asamoto
In Japan, neurosurgeons have mainly treated brain diseases, with most cases involving the spine and spinal diseases historically being treated by orthopedists. Nowadays, spinal surgery is just one of the many subspecialties in the neurosurgical field in Japan. Most patients with neurological deficits or suspected neurological diseases are taken to board-certified neurosurgeons or go to them directly in Japan, not through referrals from family doctors or specialists in other fields. Problems originating in the spine and spinal cord have been overlooked or misdiagnosed in these situations...
November 29, 2016: World Neurosurgery
https://www.readbyqxmd.com/read/27909654/bone-substitutes-and-expanders-in-spine-surgery-a-review-of-their-fusion-efficacies
#10
Abhijeet Kadam, Paul W Millhouse, Christopher K Kepler, Kris E Radcliff, Michael G Fehlings, Michael E Janssen, Rick C Sasso, James J Benedict, Alexander R Vaccaro
STUDY DESIGN: A narrative review of literature. OBJECTIVE: This manuscript intends to provide a review of clinically relevant bone substitutes and bone expanders for spinal surgery in terms of efficacy and associated clinical outcomes, as reported in contemporary spine literature. SUMMARY OF BACKGROUND DATA: Ever since the introduction of allograft as a substitute for autologous bone in spinal surgery, a sea of literature has surfaced, evaluating both established and newly emerging fusion alternatives...
2016: International Journal of Spine Surgery
https://www.readbyqxmd.com/read/27908218/risk-factors-for-dural-tears-a-study-of-elective-spine-surgery
#11
Meghan E Murphy, Panagiotis Kerezoudis, Mohammed Ali Alvi, Brandon A McCutcheon, Patrick R Maloney, Lorenzo Rinaldo, Daniel Shepherd, Daniel S Ubl, William E Krauss, Elizabeth B Habermann, Mohamad Bydon
OBJECTIVE: This study moves beyond previous cohort studies and benchmark data by studying a population of elective spine surgery from a multicenter registry in an effort to validate, disprove, and/or identify novel risk factors for dural tears. METHODS: A retrospective cohort analysis queried a multicenter registry for patients with degenerative spinal diagnoses undergoing elective spinal surgery from 2010-2014. Multivariable logistic regression analysis interrogated for independent risk factors of dural tears...
December 2, 2016: Neurological Research
https://www.readbyqxmd.com/read/27906738/predictive-factors-for-postoperative-follow-up-which-patients-are-prone-to-loss-to-follow-up-after-spinal-surgery
#12
Kee-Yong Ha, Sang-Il Kim, Young-Hoon Kim, Young-Ho Kim, In-Soo Oh
STUDY DESIGN: Retrospective cohort study. OBJECTIVE: To find out the predictive factors for the failure to follow-up in patients who underwent spinal surgery. SUMMARY OF BACKGROUND DATA: Causes for loss to follow-up range from geographical accessibility to dissatisfaction with surgeons. There were few reports that investigated loss to follow-up after spinal surgery. METHODS: A total of 649 patients who underwent laminectomy and 193 patients who underwent L4-L5 fusion from August 2006 to August 2013 were enrolled in this retrospective study...
November 30, 2016: Clinical Spine Surgery
https://www.readbyqxmd.com/read/27905158/metastatic-spinal-cord-compression-from-basal-cell-carcinoma-of-the-skin-treated-with-surgical-decompression-and-vismodegib-case-report-and-review-of-hedgehog-signalling-pathway-inhibition-in-advanced-basal-cell-carcinoma
#13
J McGrane, S Carswell, T Talbot
We report a case of a 66-year-old man with locally advanced and metastatic basal cell carcinoma (BCC) causing spinal cord compression, which was treated with spinal surgery and subsequent vismodegib. The patient presented with a large fungating chest wall lesion and a metastasis in T8 that was causing cord compression. He had neurosurgical decompression of the T8 lesion and fixation of the spine. Punch biopsy from the fungating chest wall lesion showed a BCC with some malignant squamous differentiation (basosquamous)...
November 30, 2016: Clinical and Experimental Dermatology
https://www.readbyqxmd.com/read/27898601/fontan-fenestration-closure-prior-to-posterior-spinal-fusion-in-patients-with-single-ventricle-heart-disease
#14
Matthew C Schwartz, David Nykanen, Craig Fleishman, Hamish M Munro, Jonathan Phillips, Raymond D Knapp, Donald Felix
STUDY DESIGN: Case series. OBJECTIVE: To describe transcatheter closure of the Fontan fenestration prior to posterior spinal fusion in two children to prevent paradoxical venous air embolism during the operation. SUMMARY OF BACKGROUND DATA: Scoliosis is common among patients with single-ventricle congenital heart disease who have undergone Fontan operation and spinal surgery can offer physiologic benefits. Venous air embolism is a rare, but important reported complication during spinal surgery performed in the prone position...
December 1, 2016: Spine
https://www.readbyqxmd.com/read/27896519/image-guidance-technology-and-the-surgical-resection-of-spinal-column-tumors
#15
REVIEW
Bhargav Desai, Jonathan Hobbs, Grant Hartung, Guoren Xu, Ziya L Gokaslan, Andreas Linninger, Ankit I Mehta
Precision imaging is paramount to achieving success in surgical resection of many spinal tumors, whether the goal involves guiding a surgical cure for primary tumors or improving neurological decompression for metastatic lesions. Pre-operatively, image visualization is intimately involved with defining a clear target and surgical planning. Intra-operatively, image-guidance technology allows for surgeons to maximize the probability for gross total resection of spinal cord tumors and minimize damage to adjacent structures...
November 28, 2016: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/27893643/early-percutaneous-dilational-tracheostomy-does-not-lead-to-an-increased-risk-of-surgical-site-infection-following-anterior-spinal-surgery
#16
Chris Kaczmarek, Mirko Aach, Martin F Hoffmann, Emre Yilmaz, Christian Waydhas, Thomas A Schildhauer, Uwe Hamsen
BACKGROUND: Most patients suffering cervical spinal cord injuries require tracheostomy. The optimal timing is still a matter of debate. Previous studies showed that patients receiving early tracheostomy had fewer ventilator days, decreased rates of pneumonia, and were mobilized earlier. Due to the proximity of the anterior approach to the tracheostoma, there is concern about an increased risk of surgical site infection related to tracheostomy. METHODS: Retrospective analysis at a Level 1 trauma center of patient records from 2008-2014, identifying all patients with spinal cord injury who received anterior cervical spinal surgery and had early percutaneous dilational tracheostomy...
November 23, 2016: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/27890759/transforaminal-percutaneous-endoscopic-lumbar-discectomy-with-percutaneous-epidural-neuroplasty-in-lumbar-disc-herniation-technical-note
#17
Hyeong-Jin Lee, Jin-Sung Kim, Kyeong-Sik Ryu
OBJECTIVE: Percutaneous endoscopic lumbar discectomy and percutaneous epidural neuroplasty is a commonly used minimally invasive spinal surgery in lumbar disc herniation. But to our knowledge, there is no report about the results of percutaneous endoscopic lumbar discectomy with percutaneous epidural neuroplasty. We did this study to evaluate the effect of percutaneous endoscopic lumbar discectomy with percutaneous epidural neuroplasty in lumbar disc herniation. METHODS: We report the series of cases about technics and results of percutaneous endoscopic lumbar discectomy with percutaneous epidural neuroplasty in lumbar disc herniation...
November 24, 2016: World Neurosurgery
https://www.readbyqxmd.com/read/27886875/the-role-of-a-miniopen-thoracoscopic-assisted-approach-in-the-management-of-burst-fractures-involving-the-thoracolumbar-junction
#18
REVIEW
Ricky Raj S Kalra, Meic H Schmidt
Thoracoscopic spinal surgery is a minimally invasive open endoscopic approach to the anterior thoracolumbar spine for decompression and stabilization. It offers an alternative to open thoracotomy for thoracolumbar burst fractures, anterior spinal cord decompression, and spinal reconstruction with interbody and anterolateral plate instrumentation for restoration of biomechanical stability and alignment. Posterior instrumentation may not sufficiently stabilize a significantly disrupted anterior load-bearing spinal column, and the high access morbidity of open procedures is of significant concern...
January 2017: Neurosurgery Clinics of North America
https://www.readbyqxmd.com/read/27885477/impact-of-old-age-on-patient-report-outcomes-and-cost-utility-for-anterior-cervical-discectomy-and-fusion-surgery-for-degenerative-spine-disease
#19
Silky Chotai, Scott L Parker, J Alex Sielatycki, Ahilan Sivaganesan, Harrison L Kay, Joseph B Wick, Matthew J McGirt, Clinton J Devin
PURPOSE: With growing older population and increasing rates of cervical spinal surgery, it is vital to understand the value of cervical surgery in this population. We set forth to determine the cost utility following anterior cervical decompression and fusion (ACDF) for degenerative disease in older patients. METHODS: Patients undergoing ACDF for degenerative diseases were enrolled into prospective longitudinal registry. Patient-reported outcomes (PROs) were recorded at baseline, 1-year, and 2-year postoperatively...
November 24, 2016: European Spine Journal
https://www.readbyqxmd.com/read/27884743/mortality-and-morbidity-after-spinal-surgery-in-patients-with-parkinson-s-disease-a-retrospective-matched-pair-cohort-study
#20
Takeshi Oichi, Hirotaka Chikuda, Junichi Ohya, Ryo Ohtomo, Kojiro Morita, Hiroki Matsui, Kiyohide Fushimi, Sakae Tanaka, Hideo Yasunaga
BACKGROUND CONTEXT: There is a lack of information about postoperative outcomes and related risk factors associated with spinal surgery in patients with Parkinson's disease (PD). PURPOSE: To investigate the postoperative morbidity and mortality associated with spinal surgery for patients with PD, and the risk factors for poor outcomes. STUDY DESIGN: Retrospective matched-pair cohort study. PATIENT SAMPLE: Data of patients who underwent elective spinal surgery between July 2010 and March 2013 were extracted from the Diagnosis Procedure Combination database, a nationwide inpatient database in Japan...
November 21, 2016: Spine Journal: Official Journal of the North American Spine Society
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