keyword
MENU ▼
Read by QxMD icon Read
search

Direct Anterior Approach

keyword
https://www.readbyqxmd.com/read/28332867/age-related-changes-in-thoracic-skeletal-geometry-of-elderly-females
#1
Sven A Holcombe, Stewart C Wang, James B Grotberg
OBJECTIVE: Both females and the elderly have been identified as vulnerable populations with increased injury and mortality risk in multiple crash scenarios. Particularly in frontal impacts, older females show higher risk to the chest and thorax than their younger or male counterparts. Thoracic geometry plays a role in this increase, and this study aims to quantify key parts of that geometry in a way that can directly inform human body models that incorporate the concept of person age...
March 23, 2017: Traffic Injury Prevention
https://www.readbyqxmd.com/read/28332046/ramp-lesions-in-acl-deficient-knees-in-children-and-adolescent-population-a-high-prevalence-confirmed-in-intercondylar-and-posteromedial-exploration
#2
Matthieu Malatray, Sebastien Raux, Adrien Peltier, Clemence Pfirrmann, Romain Seil, Franck Chotel
PURPOSE: Ramp lesions are common in ACL deficient knees. Their diagnosis is difficult and, therefore, they may be underestimated. So far, no study analyzed their prevalence in a pediatric population. The diagnosis of these Ramp lesions is of major clinical relevance because of a frequent misestimating and technic difficulties. Ramp lesions might be associated with residual knee pain and instability after ACL reconstruction. The aim of this study was to evaluate the prevalence of ramp lesions explored through a systematic intercondylar and posteromedial arthroscopic approach during an ACL reconstruction in a pediatric and adolescent population...
March 22, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28320428/a-topology-based-method-to-mitigate-the-dosimetric-uncertainty-caused-by-the-positional-variation-of-the-boost-volume-in-breast-conservative-radiotherapy
#3
Peng-Yi Lee, Chih-Yuan Lin, Shang-Wen Chen, Chun-Ru Chien, Chun-Nan Chu, Hsiu-Ting Hsu, Ji-An Liang, Ying-Jun Lin, An-Cheng Shiau
BACKGROUND: To improve local control rate in patients with breast cancer receiving adjuvant radiotherapy after breast conservative surgery, additional boost dose to the tumor bed could be delivered simultaneously via the simultaneous integrated boost (SIB) modulated technique. However, the position of tumor bed kept changing during the treatment course as the treatment position was aligned to bony anatomy. This study aimed to analyze the positional uncertainties between bony anatomy and tumor bed, and a topology-based approach was derived to stratify patients with high variation in tumor bed localization...
March 20, 2017: Radiation Oncology
https://www.readbyqxmd.com/read/28297449/mri-quantification-of-pancreas-motion-as-a-function-of-patient-setup-for-particle-therapy-a-preliminary-study
#4
Giulia Fontana, Marco Riboldi, Chiara Gianoli, Cezarina I Chirvase, Gaetano Villa, Chiara Paganelli, Paul E Summers, Barbara Tagaste, Andrea Pella, Piero Fossati, Mario Ciocca, Guido Baroni, Francesca Valvo, Roberto Orecchia
Particle therapy (PT) has shown positive therapeutic results in local control of locally advanced pancreatic lesions. PT effectiveness is highly influenced by target localization accuracy both in space, since the pancreas is located in proximity to radiosensitive vital organs, and in time as it is subject to substantial breathing-related motion. The purpose of this preliminary study was to quantify pancreas range of motion under typical PT treatment conditions. Three common immobilization devices (vacuum cushion, thermoplastic mask, and compressor belt) were evaluated on five male patients in prone and supine positions...
September 2016: Journal of Applied Clinical Medical Physics
https://www.readbyqxmd.com/read/28297353/comparison-of-manual-and-automatic-mr-ct-registration-for-radiotherapy-of-prostate-cancer
#5
Anne Sofie Korsager, Jesper Carl, Lasse Riis Østergaard
In image-guided radiotherapy (IGRT) of prostate cancer, delineation of the clinical target volume (CTV) often relies on magnetic resonance (MR) because of its good soft-tissue visualization. Registration of MR and computed tomography (CT) is required in order to add this accurate delineation to the dose planning CT. An automatic approach for local MR-CT registration of the prostate has previously been developed using a voxel property-based registration as an alternative to a manual landmark-based registration...
May 2016: Journal of Applied Clinical Medical Physics
https://www.readbyqxmd.com/read/28296306/a-novel-phantom-and-procedure-providing-submillimeter-accuracy-in-daily-qa-tests-of-accelerators-used-for-stereotactic-radiosurgery
#6
Ivan A Brezovich, Richard A Popple, Jun Duan, Sui Shen, Xingen Wu, Sidi Benhabib, Mi Huang, Rex A Cardan
Stereotactic radiosurgery (SRS) places great demands on spatial accuracy. Steel BBs used as markers in quality assurance (QA) phantoms are clearly visible in MV and planar kV images, but artifacts compromise cone-beam CT (CBCT) isocenter localization. The purpose of this work was to develop a QA phantom for measuring with sub-mm accuracy isocenter congruence of planar kV, MV, and CBCT imaging systems and to design a practical QA procedure that includes daily Winston-Lutz (WL) tests and does not require computer aid...
July 2016: Journal of Applied Clinical Medical Physics
https://www.readbyqxmd.com/read/28291217/-early-postoperative-results-of-surgical-treatment-of-patients-with-anterior-clinoidal-meningiomas
#7
S V Chernov, D A Rzaev, A V Kalinovsky, A B Dmitriev, A R Kasymov, A V Zotov, E V Gormolysova, E K Uzhakova
Resection of anterior clinoidal meningiomas is a challenging task due to their localization, frequent involvement of the major cerebral arteries and cranial nerves, a high risk of postoperative neurological deficits, and low radicalness of surgery. AIM: To evaluate the radicalness of microsurgical removal and a neurological deficit in the early postoperative period in patients with anterior clinoidal meningiomas. MATERIAL AND METHODS: A total of 35 patients with anterior clinoidal meningiomas underwent surgery at the Department of Neurooncology of the Novosibirsk Federal Neurosurgical Center in the period from 2013 to July 2016...
2017: Zhurnal Voprosy Neĭrokhirurgii Imeni N. N. Burdenko
https://www.readbyqxmd.com/read/28287388/kerboull-type-plate-in-a-direct-anterior-approach-for-severe-bone-defects-at-primary-total-hip-arthroplasty-technical-note
#8
Mikio Matsumoto, Tomonori Baba, Hironori Ochi, Yu Ozaki, Taiji Watari, Yasuhiro Homma, Kazuo Kaneko
INTRODUCTION: For cases with extensive acetabular bone defects, we perform surgery combining the Kerboull-type (KT) plate and bone graft through direct anterior approach (DAA) in primary total hip arthroplasty (THA) requiring acetabular reconstruction as minimally invasive surgery. This paper provides the details of the surgical procedure. METHODS: The basic structure of the Kerboull-type plate is a cruciform plate. Since the hook of the Kerboull-type plate has to be applied to the tear drop, a space for it was exposed...
2017: SICOT-J
https://www.readbyqxmd.com/read/28285945/hanging-drop-culture-enhances-differentiation-of-human-adipose-derived-stem-cells-into-anterior-neuroectodermal-cells-using-small-molecules
#9
Noushin Amirpour, Shahnaz Razavi, Ebrahim Esfandiari, Batoul Hashemibeni, Mohammad Kazemi, Hossein Salehi
Inspired by in vivo developmental process, several studies were conducted to design a protocol for differentiating of mesenchymal stem cells into neural cells in vitro. Human adipose-derived stem cells (hADSCs) as mesenchymal stem cells are a promising source for this purpose. At current study, we applied a defined neural induction medium by using small molecules for direct differentiation of hADSCs into anterior neuroectodermal cells. Anterior neuroectodermal differentiation of hADSCs was performed by hanging drop and monolayer protocols...
March 7, 2017: International Journal of Developmental Neuroscience
https://www.readbyqxmd.com/read/28281291/the-innominate-tubercle-of-the-femur-application-to-anterior-surgical-approaches-to-the-hip
#10
O Kielbasinski Podlaszewska, J Bekvalac, R L Williams, P J Adds
INTRODUCTION: There has recently been an increase in popularity of the direct anterior approach (DAA) hip arthroplasty, due to the muscle sparing nature of its interneural intervals, with the innominate tubercle being used as a lateral reference point for the femoral neck osteotomy. However, there is very little information in the literature on this rather enigmatic structure, with no evidence as to whether it is a consistent and reliable marker, or if it varies significantly in the population...
March 9, 2017: Clinical Anatomy
https://www.readbyqxmd.com/read/28280738/ultrasound-guided-obturator-nerve-block-a-focused-review-on-anatomy-and-updated-techniques
#11
REVIEW
Takayuki Yoshida, Tatsuo Nakamoto, Takahiko Kamibayashi
This review outlines the anatomy of the obturator nerve and the indications for obturator nerve block (ONB). Ultrasound-guided ONB techniques and unresolved issues regarding these procedures are also discussed. An ONB is performed to prevent thigh adductor jerk during transurethral resection of bladder tumor, provide analgesia for knee surgery, treat hip pain, and improve persistent hip adductor spasticity. Various ultrasound-guided ONB techniques can be used and can be classified according to whether the approach is distal or proximal...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28273627/ventrogluteal-versus-dorsogluteal-site-selection-a-cross-sectional-study-of-muscle-and-subcutaneous-fat-thicknesses-and-an-algorithm-incorporating-demographic-and-anthropometric-data-to-predict-injection-outcome
#12
Theresa A Larkin, Elfriede Ashcroft, Asmahan Elgellaie, Blake A Hickey
BACKGROUND: The dorsogluteal and ventrogluteal intramuscular injection sites both have their use in clinical practice; however, it has not been established in whom one or the other should be preferentially targeted or avoided. There is a need for an evidence-based approach towards site selection for a successful intramuscular injection outcome and to avoid unwanted injection outcomes of inadvertent subcutaneous injection or bone contact. Injection outcome is dependent on injection site subcutaneous fat thickness and muscle thickness; these are likely influenced by gender and anthropometry...
February 22, 2017: International Journal of Nursing Studies
https://www.readbyqxmd.com/read/28271547/coach-led-prevention-programs-are-effective-in-reducing-anterior-cruciate-ligament-injury-risk-in-female-athletes-a-number-needed-to-treat-analysis
#13
K R Pfile, B Curioz
The purpose of this study was to determine whether the effectiveness of an anterior cruciate ligament (ACL) prevention program is impacted by the individual(s) directing the program. A number-needed-to-treat analysis compared the effectiveness of injury prevention measures when either directed by a coach or a mixed leadership group consisting of coach and healthcare providers. Eleven studies were included for analysis. Number-needed-to-treat and relative risk reduction (RRR) were calculated for each study and data sets were pooled based on the intervention leader...
March 8, 2017: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/28266959/morphometric-analysis-of-the-retroperitoneal-vessels-with-respect-to-lateral-access-surgery-in-adult-scoliosis
#14
Heeren S Makanji, Hai Le, Kirkham B Wood, Louis G Jenis, Thomas D Cha
STUDY DESIGN: Cross-sectional study reviewing 62 magnetic resonance imaging or computed tomography scans from consecutive adult patients with scoliotic spinal deformity in the thoracolumbar spine. OBJECTIVE: To investigate the variation in anatomic position of retroperitoneal vessels in relationship to curve direction, location, magnitude, and axial rotation of curves in adult scoliosis. SUMMARY OF BACKGROUND DATA: The minimally invasive lateral approach to the thoracolumbar spine avoids manipulation of abdominal and retroperitoneal structures and decreases risk of injury to paraspinal musculature...
March 6, 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28261103/novel-computational-analysis-of-left-atrial-anatomy-improves-prediction-of-atrial-fibrillation-recurrence-after-ablation
#15
Marta Varela, Felipe Bisbal, Ernesto Zacur, Antonio Berruezo, Oleg V Aslanidi, Lluis Mont, Pablo Lamata
The left atrium (LA) can change in size and shape due to atrial fibrillation (AF)-induced remodeling. These alterations can be linked to poorer outcomes of AF ablation. In this study, we propose a novel comprehensive computational analysis of LA anatomy to identify what features of LA shape can optimally predict post-ablation AF recurrence. To this end, we construct smooth 3D geometrical models from the segmentation of the LA blood pool captured in pre-procedural MR images. We first apply this methodology to characterize the LA anatomy of 144 AF patients and build a statistical shape model that includes the most salient variations in shape across this cohort...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28258304/orthopaedic-trauma-surgeons-and-direct-anterior-total-hip-arthroplasty-evaluation-of-learning-curve-at-a-level-i-academic-institution
#16
Philip J York, Stephanie L Logterman, David J Hak, Andreas Mavrogenis, Cyril Mauffrey
BACKGROUND: Interest in the direct anterior approach for total hip arthroplasty has increased over recent years; however, the potential for substantial complications exists, especially during the surgeon's learning curve. We evaluated the change in various metrics to help identify a single surgeon's learning curve. Additionally, we examined whether the learning curve was different for primarily arthroplasty versus trauma-trained surgeons. METHODS: We reported outcomes from the first 50 total hip arthroplasties performed through a direct anterior approach by a trauma fellowship-trained orthopaedic surgeon...
March 3, 2017: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/28256908/assessment-with-cone-beam-computed-tomography-of-intrafractional-motion-and-interfractional-position-changes-of-resectable-and-borderline-resectable-pancreatic-tumors-with-implanted-fiducial-marker
#17
Shingo Ohira, Masaru Isono, Yoshihiro Ueda, Takero Hirata, Reiko Ashida, Hidenori Takahashi, Masayoshi Miyazaki, Masaaki Takashina, Masahiko Koizumi, Teruki Teshima
OBJECTIVES: The volume of targets to which a high radiation dose can be delivered is limited for pancreatic radiotherapy. We assessed changes in movements of pancreatic tumors between simulation and treatment, and determined compensatory margins. METHODS: For 23 patients, differences in implanted fiducial marker motion magnitude (MMM) and mean marker position (MMP) between 4DCT and CBCT were measured. Subsequently, residual uncertainty was simulated after no action level (NAL) and extended NAL (eNAL) protocols were adopted...
March 3, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/28255513/indications-for-direct-laryngoscopic-examination-of-vocal-cord-function-prior-to-anterior-cervical-surgery
#18
REVIEW
Anirudh Gowd, Alireza Nazemi, Jonathan Carmouche, Todd Albert, Caleb Behrend
Recurrent laryngeal nerve palsy (RLNP) is among the most common complications in both thyroid surgeries and anterior approaches to the cervical spine, having both a diverse etiology and presentation. Most bilateral paresis, with subsequent devastating impact on patients, are due to failure to recognize unilateral recurrent laryngeal nerve paralysis and, although rare, are entirely preventable with appropriate history and screening. Recurrent laryngeal nerve palsy has been shown to present asymptomatically in as high as 32% of cases, which yields limitations on exclusively screening with physical examination...
March 2017: Geriatric Orthopaedic Surgery & Rehabilitation
https://www.readbyqxmd.com/read/28254535/keyhole-approach-for-clipping-intracranial-aneurysm-comparison-of-supraorbital-and-pterional-keyhole-approach
#19
Qing Lan, Hengzhu Zhang, Qing Zhu, Ailin Chen, Yanming Chen, Liang Xu, Zhongyong Wang, Liqun Yuan, Shihai Liu
OBJECTIVE: The aim of this research was to compare the functional outcome and safety between supraorbital keyhole approach (SKA) and pterional keyhole approach (PKA) for clipping intracranial aneurysms. METHODS: This is a retrospective study involving 318 patients with a total 365 aneurysms who underwent keyhole surgery, comprising 195 cases in SKA group and 123 cases in PKA group. The outcome measures include Glasgow Outcome Scale (GOS), complete clipping rate, adverse events incidence, operation view angle, working distance, and surgical incision condition...
February 22, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28254423/anterior-corpectomy-comparing-to-posterior-decompression-surgery-for-the-treatment-of-multi-level-ossification-of-posterior-longitudinal-ligament-a-meta-analysis
#20
REVIEW
Songgang Wang, Yanxiao Xiang, Xia Wang, Hao Li, Yong Hou, Hua Zhao, Xin Pan
BACKGROUND: Ossification of posterior longitudinal ligament (OPLL) can be treated by two surgical strategies, anterior decompression with fusion and posterior decompression with laminoplasty or laminectomy. It has been debated which surgical approach is more appropriate for the treatment of multilevel OPLL. The purpose of this study is to compare the outcomes of anterior corpectomy surgery to posterior decompression surgery for the treatment of multilevel ossification of OPLL. MATERIALS AND METHODS: The databases of Medline, Embase, Pubmed, Cochrane library, and Cochrane Central Register of Controlled Trials was searched and we included trials which comparing anterior to posterior surgery for multilevel OPLL...
February 22, 2017: International Journal of Surgery
keyword
keyword
15190
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"