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Orthopedic Surgery

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https://www.readbyqxmd.com/read/28454393/diagnosing-and-discriminating-between-primary-and-secondary-aneurysmal-bone-cysts
#1
Hiromi Sasaki, Satoshi Nagano, Hirofumi Shimada, Masahiro Yokouchi, Takao Setoguchi, Yasuhiro Ishidou, Osamu Kunigou, Kosuke Maehara, Setsuro Komiya
Aneurysmal bone cysts (ABCs) are benign bony lesions frequently accompanied by multiple cystic lesions and aggressive bone destruction. They are relatively rare lesions, representing only 1% of bone tumors. The pathogenesis of ABCs has yet to be elucidated. In the present study, a series of 22 cases of primary and secondary ABC from patients treated in Department of Orthopedic Surgery, Kagoshima University Hospital (Kagoshima, Japan) from 2001-2015 were retrospectively analyzed. The average age at the time of diagnosis of primary ABC was 17...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454331/centrosome-amplification-in-chondrosarcomas-a-primary-cell-culture-and-cryopreserved-tumor-sample-study
#2
Carla Aparecida Pinheiro, Iberê Cauduro Soares, Valter Penna, Jeremy Squire, Rui Manuel Vieira Reis, Sandra Regina Morini da Silva, Isabela de Carvalho, Marjori Leiva Camparoto, Maicon Fernando Zanon da Silva, Adhemar Longatto Longatto Filho
The genetics background underlying the aggressiveness of chondrosarcoma (CS) is poorly understood. One possible cause of malignant transformation is chromosomal instability, which involves an error in mitotic segregation due to numerical and/or functional abnormalities of centrosomes. The present study aimed to evaluate centrosome amplification in cryopreserved samples of tumor tissue from patients with CS. An analysis was performed on 3 primary cultures of tumors from patients who underwent surgery between January 2012 and December 2012 at the Department of Orthopedics at the Barretos Cancer Hospital (Barretos, Brazil)...
March 2017: Oncology Letters
https://www.readbyqxmd.com/read/28446938/minimally-invasive-surgery-for-resection-of-ossification-of-the-ligamentum-flavum-in-the-thoracic-spine
#3
Wei Zhao, Chaoxiong Shen, Ranze Cai, Jianfeng Wu, Yuandong Zhuang, Zhaowen Cai, Rui Wang, Chunmei Chen
INTRODUCTION: Thoracic ossification of the ligamentum flavum (TOLF) is a common cause of progressive thoracic myelopathy. Surgical decompression is commonly used to treat TOLF. AIM: To evaluate the clinical outcomes of microsurgical decompression of TOLF via a paraspinal approach, using a percutaneous tubular retractor system. MATERIAL AND METHODS: First, three-dimensional (3D) image reconstruction and printed models were made from thin computed tomography scans for each patient...
2017: Wideochirurgia i Inne Techniki Mało Inwazyjne, Videosurgery and Other Miniinvasive Techniques
https://www.readbyqxmd.com/read/28446184/results-of-167-consecutive-cases-of-acetabular-fractures-using-the-kocher-langenbeck-approach-a-case-series
#4
Lukas L Negrin, David Seligson
BACKGROUND: Acetabular fractures are quite challenging injuries for the orthopedic surgeon because of their low incidence and their deep and complex anatomy. The objective of this study was to evaluate surgeon-independent parameters that might influence radiographic outcome and early complication rates of high-energy acetabular fractures treated by open reduction and internal fixation via the Kocher-Langenbeck approach, the golden standard for posterior access. METHODS: One hundred sixty-seven consecutive patients (111 males and 56 females) with a mean age of 41...
April 26, 2017: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/28446134/assessment-of-perioperative-minute-ventilation-in-obese-versus-non-obese-patients-with-a-non-invasive-respiratory-volume-monitor
#5
Jaideep H Mehta, Davide Cattano, Jordan B Brayanov, Edward E George
BACKGROUND: Monitoring the adequacy of spontaneous breathing is a major patient safety concern in the post-operative setting. Monitoring is particularly important for obese patients, who are at a higher risk for post-surgical respiratory complications and often have increased metabolic demand due to excess weight. Here we used a novel, noninvasive Respiratory Volume Monitor (RVM) to monitor ventilation in both obese and non-obese orthopedic patients throughout their perioperative course, in order to develop better monitoring strategies...
April 26, 2017: BMC Anesthesiology
https://www.readbyqxmd.com/read/28444038/difficulties-in-accessing-services-that-are-of-medium-complexity-in-small-municipalities-a-case-study
#6
Camila Ribeiro Silva, Brigida Gimenez Carvalho, Luiz Cordoni, Elisabete de Fátima Pólo de Almeida Nunes
The study aimed to describe the specialized health services and to identify areas of greater difficulty of access to specialized consultations offered by SUS in small cities in the 18th Regional Health Area of Paraná State, Brazil, using case study methodology. The data were collected between January and April 2015. Managers, management teams and the board of directors of the CIS (Consórcio Intermunicipal de Saúde) were interviewed. The 21 studied specialist areas were rated like Sufficient Quota, Insufficient Quota, Inexistent Supply, and Assistance Gap...
April 2017: Ciência & Saúde Coletiva
https://www.readbyqxmd.com/read/28443277/pediatric-hand-surgery-training-in-nicaragua-a-sustainable-model-of-surgical-education-in-a-resource-poor-environment
#7
Mary Claire B Manske, Jairo J Rios Roque, Gabriel Ramos Zelaya, Michelle A James
Recent reports have demonstrated that nearly two-thirds of the world's population do not have access to adequate surgical care, a burden that is borne disproportionately by residents of resource-poor countries. Although the reasons for limited access to surgical care are complex and multi-factorial, among the most substantial barriers is the lack of trained surgical providers. This is particularly true in surgical subspecialties that focus on life-improving, rather than life-saving, treatments, such as pediatric hand and upper extremity surgery, which manages such conditions as congenital malformations, trauma and post-traumatic deformities including burns, and neuromuscular conditions (brachial plexus birth palsy, spinal cord injury, and cerebral palsy)...
2017: Frontiers in Public Health
https://www.readbyqxmd.com/read/28443160/correlation-between-preoperative-magnetic-resonance-imaging-signal-intensity-changes-and-clinical-outcomes-in-patients-surgically-treated-for-cervical-myeloradiculopathy
#8
Chaitanya Baban Chikhale, Ketan Shripad Khurjekar, Ashok Kumar Shyam, Parag Kantilal Sancheti
STUDY DESIGN: This was a single surgeon, single center-based retrospective study with prospective data collection. PURPOSE: To assess the correlation between T2-weighted magnetic resonance imaging (MRI) signal intensity (SI) changes and factors such as age, duration of symptoms, baseline modified Japanese Orthopedic Association (mJOA) score and to determine its prognostic value in predicting recovery after surgery. OVERVIEW OF LITERATURE: Whether intramedullary cord T2-weighted MRI SI changes can predict operative outcomes of cervical myeloradiculopathy remains debatable, with only a few prospective studies analyzing the same...
April 2017: Asian Spine Journal
https://www.readbyqxmd.com/read/28442908/antibacterial-activity-and-cytocompatibility-of-an-implant-coating-consisting-of-tio2-nanotubes-combined-with-a-gl13k-antimicrobial-peptide
#9
Tao Li, Na Wang, Su Chen, Ran Lu, Hongyi Li, Zhenting Zhang
Prevention of implant-associated infections at an early stage of surgery is highly desirable for the long-term efficacy of implants in dentistry and orthopedics. Infection prophylaxis using conventional antibiotics is becoming less effective due to the development of bacteria resistant to multiple antibiotics. An ideal strategy to conquer bacterial infections is the local delivery of antibacterial agents. Therefore, antimicrobial peptide (AMP) eluting coatings on implant surfaces is a promising alternative...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28438455/lesser-trochanter-size-on-plain-anteroposterior-radiographs-correlates-with-native-femoral-anteversion
#10
Michael C Worlicek, Michael L Wörner, Benjamin S Craiovan, Florian Zeman, Joachim Grifka, Tobias F Renkawitz, Markus Weber
BACKGROUND: Assessing femoral version in orthopedic surgery is important for preoperative planning of total hip arthroplasty, especially for recognizing excessive anteversion or retroversion. The present study addressed the following: (1) Is the position of the lesser trochanter correlated to the femoral neck axis? (2) If so, may femoral version be assessed by means of plain pelvic radiographs? METHODS: Three-dimensional computed tomography scans of 60 patients undergoing minimally invasive cement-free total hip arthroplasty were retrospectively analyzed, particularly with regard to the relation between the femoral neck axis and the lesser trochanter, the femoral version, and the size of the projected lesser trochanter in different rotational positions...
April 1, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28437809/reactive-rather-than-proactive-diabetes-management-in-the-perioperative-period
#11
Inge Hommel, Petra J van Gurp, Alfons A den Broeder, Hub Wollersheim, Femke Atsma, Marlies E J L Hulscher, Cees J Tack
As perioperative hyperglycemia is associated with poor postoperative patient outcomes, clinical guidelines provide recommendations for optimal perioperative glucose control. It is unclear to what extent recommended glucose levels are met in daily practice, and little is known about factors that influence these levels. We describe blood glucose levels throughout the hospital care pathway in 375 non-critically ill patients with diabetes who underwent major surgery (abdominal, cardiac, or orthopedic) in 6 hospitals, examine determinants of these levels including adherence to 9 quality indicators for optimal perioperative diabetes care, and perform qualitative interviews to identify barriers for optimal care...
April 24, 2017: Hormone and Metabolic Research, Hormon- und Stoffwechselforschung, Hormones et Métabolisme
https://www.readbyqxmd.com/read/28437759/correlation-of-technical-surgical-goals-to-the-gdi-and-investigation-of-post-operative-gdi-change-in-children-with-cerebral-palsy
#12
Christina Bickley, Judi Linton, Nancy Scarborough, Elroy Sullivan, Katy Mitchell, Douglas Barnes
AIM: The purpose of this study was to introduce a standardized set of surgical technical achievement goals (TAGs) as part of a comprehensive outcome assessment model for children with spastic cerebral palsy (CP) undergoing orthopaedic surgical intervention to improve gait. Examination of relationships of these surgical goals to the Gait Deviation Index (GDI) and use of two assessments in tandem provided a thorough picture of technical surgical outcomes. This study also investigated changes in GDI in children with spastic CP after surgery...
April 13, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28437548/arthroscopic-treatment-of-a-displaced-nonunion-of-the-anterior-inferior-iliac-spine-causing-extra-articular-impingement
#13
Motoi Shibahara, Yasuo Ohnishi, Eisaburo Honda, Dean K Matsuda, Soshi Uchida
This report describes a case of nonunion of an anterior inferior iliac spine (AIIS) apophyseal avulsion fracture with resultant subspine impingement combined with symptomatic femoroacetabular impingement (FAI). A 16-year-old male soccer player presented with a 6-month history of right groin pain exacerbated by kicking and running. The patient was diagnosed with a displaced nonunion of the AIIS apophysis avulsion fracture causing secondary extra-articular impingement beyond cam-type FAI by physical examination and radiological findings...
April 24, 2017: Orthopedics
https://www.readbyqxmd.com/read/28437490/the-diagnosis-and-initial-treatment-of-patellofemoral-disorders
#14
Alan C Merchant, John P Fulkerson, Wayne Leadbetter
Our purpose is to provide simple guidelines for the diagnosis and early care of patellofemoral disorders. Any clinician who treats knee problems, including family practitioners, rheumatologists, orthopedic surgeons, or physical therapists, must know how to make the correct diagnosis, or at least a presumptive diagnosis, at the initial visit. This can avoid unneeded and costly tests, ineffective treatment, and even damaging exercises and unnecessary surgery. The diagnosis of patellofemoral disorders is confusing because they can have many causes...
March 2017: American Journal of Orthopedics
https://www.readbyqxmd.com/read/28434979/synergistic-effects-of-bmp-2-bmp-6-or-bmp-7-with-human-plasma-fibronectin-onto-hydroxyapatite-coatings-a-comparative-study
#15
Isabelle Brigaud, Rémy Agniel, Johanne Leroy Dudal, Sabrina Kellouche, Arnaud Ponche, Tahar Bouceba, Natalia Mihailescu, Mihai Sopronyi, Eric Viguier, Carmen Ristoscu, Felix Sima, Ion N Mihailescu, Ana Claudia O Carreira, Mari Cleide Sogayar, Olivier Gallet, Karine Anselme
Design of new osteoinductive biomaterials to reproduce an optimized physiological environment capable of recruiting stem cells and instructing their fate towards the osteoblastic lineage has become a priority in orthopedic surgery. This work aims at evaluating the bioactivity of BMP combined with human plasma fibronectin (FN/BMP) delivered in solution or coated onto titanium-hydroxyapatite (TiHA) surfaces. Herein, we focus on the comparison of in vitro osteogenic efficacy in mouse C2C12 pre-osteoblasts of three BMP members, namely: BMP-2, BMP-6 and BMP-7...
April 18, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28434847/mri-before-radiography-for-patients-with-new-shoulder-conditions
#16
Kirstin M Small, Frank J Rybicki, Lindsay R Miller, Stephen D Daniels, Laurence D Higgins
PURPOSE: To assess the patterns of Appropriate Criteria application among orthopedic specialists and other fields of medicine for use of MRI and radiography and the subsequent necessity for surgical intervention. METHODS: The hospital electronic medical record was used to identify all shoulder MRI studies at a single large urban teaching hospital between January 2, 2011, and June 30, 2011. For each study, variables collected included ordering department, patient age, patient gender, patient's self-reported race/ethnicity, whether the patient obtained surgery for an issue related to the MRI diagnosis, the type of MRI ordered, the date of pain onset, the date of x-ray (if any), and the date of the MRI...
April 20, 2017: Journal of the American College of Radiology: JACR
https://www.readbyqxmd.com/read/28433425/effect-of-spinal-fusion-surgery-on-total-hip-arthroplasty-outcomes-a-matched-comparison-study
#17
Jing Loong Moses Loh, Lei Jiang, Hwei Chi Chong, Seng Jin Yeo, Ngai Nung Lo
BACKGROUND: Studies regarding postoperative outcomes after primary total hip arthroplasty (THA) in patients who have comorbid factors tend to focus on medical diseases. However, there is a paucity of literature examining the effect of a patient's orthopedic surgical history on outcomes after THA. Significantly, there are currently no studies on the effect of spinal fusion surgery on THA outcomes. METHODS: A review of 82 consecutive patients who had prior spinal fusion surgery who underwent elective THA from January 1, 2006 to December 31, 2015, was conducted...
March 22, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28433416/static-postural-control-in-youth-with-osteogenesis-imperfecta-type-i
#18
Annie Pouliot-Laforte, Martin Lemay, Frank Rauch, Louis-Nicolas Veilleux
OBJECTIVE: To assess static postural control in eyes-open and eyes-closed conditions in individuals with osteogenesis imperfecta (OI) type I as compared to typically developing (TD) individuals. The second aim was to explore the relation between postural control and lower-limbs muscle function. DESIGN: This is a cross-sectional study. SETTINGS: The study was carried out in the outpatient department of a pediatric orthopedic hospital. PARTICIPANTS: 22 individuals with OI type I (mean age [range]: 13...
April 19, 2017: Archives of Physical Medicine and Rehabilitation
https://www.readbyqxmd.com/read/28428063/percutaneous-endoscopical-transforaminal-approach-versus-plf-to-treat-the-single-level-adjacent-segment-disease-after-plf-plif-1-2-years-follow-up
#19
Zhaoyu Ba, Fumin Pan, Zhonghan Liu, Bin Yu, Laurel Fuentes, Desheng Wu, Jianguang Zhu
BACKGROUND: Adjacent segment disease (ASD) is a common complication after lumbar decompression and fusion surgery. Traditional revision-surgery, including posterior lumbar decompression and posterolateral fusion (PLF) or interbody fusion (PLIF) is traumatic. The percutaneous endoscopic transforaminal procedure (PE-TF) has been widely used in patients with lumbar disc disease. However, there are no reports about using PE-TF procedure to treat ASD in the current literature. OBJECTIVE: To compare the clinical outcomes between PE-TF and PLF for single-level ASD after PLF or PLIF...
April 17, 2017: International Journal of Surgery
https://www.readbyqxmd.com/read/28428032/does-semi-automatic-bone-fragment-segmentation-improve-the-reproducibility-of-the-letournel-acetabular-fracture-classification
#20
M Boudissa, B Orfeuvre, M Chabanas, J Tonetti
BACKGROUND: The Letournel classification of acetabular fracture shows poor reproducibility in inexperienced observers, despite the introduction of 3D imaging. We therefore developed a method of semi-automatic segmentation based on CT data. The present prospective study aimed to assess: 1) whether semi-automatic bone-fragment segmentation increased the rate of correct classification; 2) if so, in which fracture types; and 3) feasibility using the open-source itksnap 3.0 software package without incurring extra cost for users...
April 17, 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
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