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Direct Anterior Approach

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https://www.readbyqxmd.com/read/28733907/multiple-intracranial-aneurysms-a-direct-hemodynamic-comparison-between-ruptured-and-unruptured-vessel-malformations
#1
Philipp Berg, Oliver Beuing
PURPOSE: Despite numerous studies addressing the rupture risk of intracranial aneurysms that have been published, the assessment thereof still remains challenging. Image-based simulations enable a precise prediction of patient-specific blood flow information. However, those approaches normally consider only small segments of the complete cerebral vasculature. METHODS: To test the validity of the consideration of single aneurysms in one computational setup, domains of the complete anterior and posterior circulations with multiple intracranial aneurysms (MIA) were simulated...
July 21, 2017: International Journal of Computer Assisted Radiology and Surgery
https://www.readbyqxmd.com/read/28733739/variation-and-treatment-of-vessels-in-laparoscopic-right-hemicolectomy
#2
Kai Ye, Jianan Lin, Yafeng Sun, Yiyang Wu, Jianhua Xu, Songbing He
BACKGROUND: With the introduction of complete mesocolic excision (CME) and the application of laparoscopic technique, surgery for colon cancer has become more standardized and the curative effect has improved [1]. The key points in laparoscopic right hemicolectomy are high ligation of main vessels and root dissection of lymph nodes. The wide range of variations in vascular architecture and intraoperative bleeding are common causes of prolonged surgical time, wound hemorrhage, and even transfer to the opening operation...
July 21, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/28731487/intraoperative-fluoroscopy-with-a-direct-anterior-approach-reduces-variation-in-acetabular-cup-abduction-angle
#3
Gens P Goodman, Nitin Goyal, Nancy L Parks, Robert H Hopper, William G Hamilton
INTRODUCTION: The purpose of this study was to compare acetabular cup position for 2 cohorts of total hip arthroplasty (THA) patients who had a direct anterior approach. METHODS: 100 THA cases were performed with an anterior approach using intraoperative fluoroscopy (IF) to aid in cup positioning. Another group of 100 cases underwent THA with an anterior approach without the use of any fluoroscopy. Postoperative abduction and anteversion angles were measured using Martell's hip analysis software...
July 19, 2017: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
https://www.readbyqxmd.com/read/28725593/buccal-mucosal-graft-urethroplasty-in-men-risk-factors-for-recurrence-and-complications-a-third-referral-centre-experience-in-anterior-urethroplasty-using-buccal-mucosal-graft
#4
Marco Spilotros, Neha Sihra, Sachin Malde, Mahreen H Pakzad, Rizwan Hamid, Jeremy L Ockrim, Tamsin J Greenwell
BACKGROUND: Urethral stricture disease is a challenging condition to treat and several approaches including direct visual internal urethrotomy (DVIU) and anastomotic or augmentation urethroplasties based on the use of flaps and graft have been reported. The aim of this study is to determine risk factors for stricture recurrence and complications in patients having buccal mucosal graft (BMG) urethroplasty for anterior urethral stricture under a single surgeon in a third referral centre in UK...
June 2017: Translational Andrology and Urology
https://www.readbyqxmd.com/read/28725122/two-incisions-direct-anterior-approach-for-thr-surgical-technique-and-early-outcome
#5
Ritesh Rathi, Idriss Tourabaly, Alexis Nogier
PURPOSE: In recent times the direct anterior approach for total hip replacement has gained considerable interest among orthopaedic surgeons because of the relative muscle-sparing nature than other surgical approaches. However, critics believe that this approach is associated with steep learning curve and high complication rates, mainly attributed to a more limited exposure to the femur. In order to make femoral access easier and implantation of acetabulum in anatomic plane, we designed a "two incisions anterior approach technique" for total hip replacement...
September 2017: Journal of Orthopaedics
https://www.readbyqxmd.com/read/28723714/vent-incisions-to-facilitate-peripheral-unfolding-of-the-dmek-graft
#6
Christopher Liu, Alfonso Vasquez-Perez, Jordan Vassileff Chervenkoff, Venkata Avadhanam
PURPOSE: To present the results of 15 cases in which a modified technique of Descemet membrane endothelial keratoplasty (DMEK) with vent incisions was used to assist unfolding of tight peripheral inward folds. METHODS: This is a retrospective case series of 15 consecutive eyes that underwent a modified vent incision technique for DMEK. Six oblique, small-size (1 mm) vent incisions parallel to the limbus and 3.5 mm from the center were performed after descemetorhexis...
July 17, 2017: Cornea
https://www.readbyqxmd.com/read/28716213/imaging-of-endoscopic-approaches-to-the-anterior-and-central-skull-base
#7
REVIEW
I M Schmalfuss
Sinonasal endoscopy for treatment of benign sinonasal diseases is a well-established procedure. Recent advances in endoscope technology have substantially expanded its application with many institutions now offering resection of skull base lesions and sinonasal malignancies via the endoscopic approach. Its minimally invasive nature leads to faster recovery time, better cosmetic results, and fewer complications. Unfortunately, not all lesions involving the sinonasal region and skull base are accessible to sinonasal endoscopy...
July 14, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/28712898/iatrogenic-vertebral-artery-injury-during-anterior-cervical-spine-surgery-a-systematic-review
#8
REVIEW
Qing Guan, Long Chen, Ye Long, Zhou Xiang
BACKGROUND: Iatrogenic vertebral artery injury (VAI) during anterior cervical surgery is rare but potentially catastrophic. METHOD: The causes, presentation, diagnosis, management, prognosis, and prevention of VAI were reviewed following Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. English-language studies and case reports published from 1980 to 2017 were retrieved. Data on diagnosis, surgical procedures and approach, site and cause of VAI, management, outcomes, and VA status were extracted...
July 13, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28705123/surgery-of-patellar-fractures-using-a-medial-parapatellar-approach
#9
Yong-Cheol Yoon, Jae-Ang Sim, Jin-Hun Hong
PURPOSE: The general surgical approach for patellar fractures has a significant weakness, in that the articular facet is invisible because the fixation is performed using radiation amplifiers after exposing the fracture site through vertical or transverse dissection on the anterior patella. We report excellent outcomes in the surgical treatment of patellar fractures, using a medial parapatellar approach. METHODS: This study evaluated 20 patients who underwent surgery between August 2008 and April 2014 to correct patellar fractures with comminution or with displacement of the articular facet of ≥2 mm and who had ≥1 year of follow-up...
May 2017: Journal of Orthopaedic Surgery
https://www.readbyqxmd.com/read/28702750/function-and-activity-after-minimally-invasive-total-hip-arthroplasty-compared-to-a-healthy-population
#10
Eberhard von Rottkay, Lars Rackwitz, Maximilian Rudert, Ulrich Nöth, Johannes Christian Reichert
PURPOSE: The aim of the present study was to compare the daily activity and functionality in a patient cohort 12 months after total hip arthroplasty (THA) using a direct anterior approach with a healthy non-operated control population. METHODS: Sixty-four patients who underwent THA and 59 healthy individuals (control) were assessed regarding their daily activity and joint functionality utilizing the Harris hip score (HHS), the extra short musculoskeletal functional assessment questionnaire (XSFMA), the Short Form 36 (SF-36) health survey and a Stepwatch™ Activity Monitor (SAM)...
July 12, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28698935/the-anterior-smas-approach-for-facelifting-and-for-buccal-fat-pad-removal
#11
Malcolm D Paul
Having performed numerous varieties of SMAS advancement including: plication, resection, flap elevation with variable anterior deep dissection, the author has developed a direct approach to the mobile anterior SMAS which allows correction of midface descent, modest elevation of the modiolus, jawline correction, and, where indicated, direct access for buccal fat pad resection. LEVEL OF EVIDENCE V: This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www...
July 11, 2017: Aesthetic Plastic Surgery
https://www.readbyqxmd.com/read/28693816/anterior-pedicle-spreader-reduction-for-unilateral-cervical-facet-dislocation
#12
Zhengfeng Zhang
OBJECTIVE: The anterior only surgical procedure including discectomy, open reduction and fusion is used as a recommended approach in the treatment of unilateral cervical facet dislocations, but is difficult to achieve satisfactory anterior open reduction by vertebra distractor to spread the facet joints, especially for delayed management of unilateral cervical facet dislocation (7-21days). The goal of this study was to report an anterior pedicle spreader technique to distract directly the facet joint for anterior reduction and the results of 4 patients with successful application and describe safety...
July 6, 2017: Injury
https://www.readbyqxmd.com/read/28681754/microsurgical-anatomy-of-the-superior-sagittal-sinus-and-draining-veins
#13
Mariano Anto Bruno-Mascarenhas, Vengalathur G Ramesh, Sundar Venkatraman, Jolarpettai V Mahendran, S Sundaram
BACKGROUND: The superior sagittal sinus and the draining cerebral veins are often encountered during the surgery for parasagittal and falx meningiomas and during the interhemisperic transcallosal approaches. A knowledge about the variations from the normally described anatomy helps in anticipating and avoiding problems related to these structures during surgery. AIM: The normal variations in the disposition of the superior sagittal sinus and the number and direction of the draining veins in the Indian population have been studied...
July 2017: Neurology India
https://www.readbyqxmd.com/read/28676464/endonasal-endoscopic-odontoidectomy-in-ventral-pathologies-of-the-cranio-cervical-junction-results-of-a-multicenter-experience
#14
Salvatore Chibbaro, Helene Cebula, Sorin Aldea, Bertrand Baussart, Leonardo Tigan, Julien Todeschi, Antonio Romano, Mario Ganau, Christian Debry, Franco Servadei, Francois Proust, Stephane Gaillard
BACKGROUND: Over the past decades, supported by preliminary anatomical and clinical studies exploring its feasibility and safety, an ever growing experience was built on the use of the endoscopic endonasal approach (EEA) to ventral pathologies at the cranio-cervical junction (CCJ). PATIENTS AND METHODS: Multicenter study over a 4 years period on 14 patients managed by EEA odontoidectomy for CCJ pathologies causing irreducible atlanto-axial dislocation. The surgical set up included an IGS system based on CT and MRI images fusion, and 0° and 30° angled endoscopes with dedicated endoscopic tools...
July 1, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28662957/comparison-of-early-functional-recovery-after-total-hip-arthroplasty-using-a-direct-anterior-or-posterolateral-approach-a-randomized-controlled-trial
#15
Hai-Yan Zhao, Peng-De Kang, Ya-Yi Xia, Xiao-Jun Shi, Yong Nie, Fu-Xing Pei
BACKGROUND: Controversy exists as to whether early functional outcomes differ after total hip arthroplasty performed using the direct anterior approach (DAA) or the posterolateral approach (PLA). METHODS: One hundred twenty patients were enrolled in this study and were divided into 2 groups based on surgical approach. Group A included patients who had a total hip arthroplasty with a DAA, whereas group B included those with a PLA. Patients were randomized into the DAA or PLA groups (n = 60), and perioperative and postoperative outcomes were recorded...
June 8, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28658039/radiographic-analysis-of-psoas-morphology-and-its-association-with-neurovascular-structures-at-l4-5-with-reference-to-lateral-approaches
#16
Philip K Louie, Ankur S Narain, Fady Y Hijji, Alem Yacob, Kelly H Yom, Frank M Phillips, Kern Singh
STUDY DESIGN: Retrospective imaging review. OBJECTIVE: Utilize magnetic resonance imaging (MRI) to expand the anatomical description of psoas morphology and its association with neurovascular structures at L4-5. SUMMARY OF BACKGROUND DATA: Anatomical psoas muscle variants may present a greater risk of neurovascular injury at the L4-5 level during lateral transpsoas approaches. METHODS: Axial L4-5 sections of consecutive patients who obtained lumbar MRIs were analyzed...
June 27, 2017: Spine
https://www.readbyqxmd.com/read/28653047/noninvasive-bilaminar-cad-cam-composite-resin-veneers-%C3%A2-a-semi-in-direct-approach
#17
Pascal Magne
Direct composite resin restorations have been recognized for their valuable clinical service and respect of intact hard tissue. The cost-effectiveness and inherent minimally invasive approach of resin-based materials means that they are also gaining popularity for use in computer-aided design/computer-aided manufacture (CAD/CAM) procedures. Several cases from the student clinics at the Herman Ostrow School of Dentistry of USC are presented that could have been resolved either with direct composite resin restorations or with indirect porcelain veneers...
2017: International Journal of Esthetic Dentistry
https://www.readbyqxmd.com/read/28643569/iron-overload-directly-affecting-the-ovaries-in-a-patient-with-diamond-blackfan-anaemia-a-case-report
#18
Mariano Mascarenhas, Victoria Rawnsley, Adam Balen
Iron is a 'one-way' element and the primary point of regulation of body iron stores is at the level of intestinal iron absorption. Repeated blood transfusions for congenital anaemias bypass this regulatory checkpoint and inevitably lead to iron overload in the long-term. Iron overload causes multi-organ dysfunction of the heart, liver, pancreas and joints. It also causes reproductive toxicity primarily through its damaging effect on the anterior pituitary leading to hypogonadotrophic hypogonadism. Another less understood mechanism of reproductive toxicity is direct gonadal damage of excess free iron...
June 23, 2017: Human Fertility: Journal of the British Fertility Society
https://www.readbyqxmd.com/read/28641967/fluoroscopically-guided-acetabular-component-positioning-does-it-reduce-the-risk-of-malpositioning-in-obese-patients
#19
Raul G Gosthe, Juan C Suarez, Colin A McNamara, Cecilia Calvo, Preetesh D Patel
BACKGROUND: Obesity has been described as an independent risk factor for acetabular component malpositioning. The purpose of this study was to determine if this could be overcome by use of fluoroscopic navigation in total hip arthroplasty (THA). METHODS: The first, postoperative, standing, anteroposterior pelvis radiographs from 1599 consecutive patients who underwent fluoroscopic-guided THAs via anterior approach during a six-year period were obtained. We retrospectively reviewed this prospectively collected data...
May 5, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28641160/effects-of-hip-joint-centre-mislocation-on-gait-kinematics-of-children-with-cerebral-palsy-calculated-using-patient-specific-direct-and-inverse-kinematic-models
#20
Hans Kainz, Christopher P Carty, Sheanna Maine, Henry P J Walsh, David G Lloyd, Luca Modenese
Joint kinematics can be calculated by Direct Kinematics (DK), which is used in most clinical gait laboratories, or Inverse Kinematics (IK), which is mainly used for musculoskeletal research. In both approaches, joint centre locations are required to compute joint angles. The hip joint centre (HJC) in DK models can be estimated using predictive or functional methods, while in IK models can be obtained by scaling generic models. The aim of the current study was to systematically investigate the impact of HJC location errors on lower limb joint kinematics of a clinical population using DK and IK approaches...
June 4, 2017: Gait & Posture
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