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https://www.readbyqxmd.com/read/29770850/ultrasound-measurements-of-axillary-recess-capsule-thickness-in-unilateral-frozen-shoulder-study-of-correlation-with-mri-measurements
#1
Du Hwan Kim, Chul-Hyun Cho, Duk Hyun Sung
OBJECTIVE: The aims of this study were to compare the ultrasound thickness of the affected axillary recess capsule (ARC) with that of the unaffected ARC in patients with frozen shoulder (FS), to analyze whether the ultrasound measurements of the ARC thickness correlate with those obtained using MRI, and to assess whether the ultrasound thickness of the ARC correlates with the patterns of range of motion limitation. MATERIALS AND METHODS: Forty-four patients with clinically diagnosed unilateral FS and MRI evaluation performed ultrasound measurement of ARC...
May 16, 2018: Skeletal Radiology
https://www.readbyqxmd.com/read/29765439/radiographic-features-of-anatomic-relationship-between-impacted-third-molar-and-inferior-alveolar-canal-on-coronal-cbct-images-risk-factors-for-nerve-injury-after-tooth-extraction
#2
Dongmiao Wang, Tangyi Lin, Yanling Wang, Chao Sun, Lianfeng Yang, Hongbing Jiang, Jie Cheng
Introduction: The present study was aimed to identify the radiographic signs between impacted third molar root and inferior alveolar canal (IAC) on cone-beam CT (CBCT) images as risk factors and prognostic predictors associated with inferior alveolar nerve (IAN) damage following tooth removal. Material and methods: A retrospective clinical study was performed involving 136 patients with 257 impacted lower third molars from January 2013 to December 2014. The neurosensory function of the lower lip and chin was subjectively evaluated and assessed by neurosensory tests before and after surgery...
April 2018: Archives of Medical Science: AMS
https://www.readbyqxmd.com/read/29762886/automatic-m1-so-montage-headgear-for-transcranial-direct-current-stimulation-tdcs-suitable-for-home-and-high-throughput-in-clinic-applications
#3
Helena Knotkova, Alexa Riggs, Destiny Berisha, Helen Borges, Henry Bernstein, Vaishali Patel, Dennis Q Truong, Gozde Unal, Denis Arce, Abhishek Datta, Marom Bikson
OBJECTIVES: Non-invasive transcranial direct current stimulation (tDCS) over the motor cortex is broadly investigated to modulate functional outcomes such as motor function, sleep characteristics, or pain. The most common montages that use two large electrodes (25-35 cm2 ) placed over the area of motor cortex and contralateral supraorbital region (M1-SO montages) require precise measurements, usually using the 10-20 EEG system, which is cumbersome in clinics and not suitable for applications by patients at home...
May 15, 2018: Neuromodulation: Journal of the International Neuromodulation Society
https://www.readbyqxmd.com/read/29757468/treatment-of-class-iii-multiple-gingival-recessions-prognostic-factors-for-achieving-a-complete-root-coverage
#4
Sofia Aroca, Antoine Barbieri, Marco Clementini, Franck Renouard, Massimo de Sanctis
BACKGROUND: This report is intended to present a supplemental analysis of data from a prior report (Aroca 2010) to investigate factors associated with a complete root coverage at 1 year. The purpose of the prior report was to investigate at 1 year the adjunction effect of EMD for the treatment of Miller's class III recession defects using a coronally advanced modified tunnel/CTG technique with (test group) or without (control group). The purpose of this report is to investigate additional factors associated with root coverage in the same data set...
May 14, 2018: Journal of Clinical Periodontology
https://www.readbyqxmd.com/read/29756502/mri-prevalence-and-characteristics-of-supraacetabular-fossae-in-patients-with-hip-pain
#5
Nickolas Boutris, Stephanie L Gardner, Thomas R Yetter, Domenica A Delgado, Luis Pulido, Joshua D Harris
BACKGROUND: Supraacetabular fossae (SAF) are normal anatomic variants found at the 12 o'clock position of the acetabulum and can be mistaken for osteochondral defects. PURPOSE: Determine SAF prevalence on MRI of patients with hip pain. Characterise SAF by type, size, and location. Determine sensitivity of radiology reports and sensitivity of radiographs in SAF detection. METHODS: MRIs performed over 1 year in patients with hip/groin pain were analysed for SAF...
May 1, 2018: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
https://www.readbyqxmd.com/read/29754982/computed-tomography-techniques-help-understand-wear-patterns-in-retrieved-total-knee-arthroplasty
#6
Arianna Cerquiglini, Johann Henckel, Harry S Hothi, Lorenzo Dall'Ava, Paul Shearing, Michael T Hirschmann, Alister J Hart
BACKGROUND: Suboptimal total knee arthroplasty (TKA) position of both femoral and tibial components is thought to be linked with poor clinical outcomes, polyethylene wear and the "unexplained" painful knee arthroplasty. The aim of this study was to better understand the effect of implant orientation on knee implant performance. METHODS: We analyzed 30 retrieved contemporary TKA implants. Implant positioning measurements in the coronal plane were made prior to revision using a diagnostic algorithm, based on 3D computed tomography (CT) images...
April 16, 2018: Journal of Arthroplasty
https://www.readbyqxmd.com/read/29752746/anti-resorptive-effect-of-pamidronate-on-extraction-socket-wall-in-dogs
#7
Jae-Kook Cha, Yoo-Kyung Sun, Myong Ji Kim, Mariano Sanz, Ui-Won Jung
AIM: The aim of this experimental in vivo investigation was to assess the anti-resorptive effect of low concentration pamidronate on the buccal plate in fresh extraction sockets. MATERIALS AND METHODS: The distal roots of the third premolars were extracted bilaterally in six dogs. A collagen matrix loaded with either pamidronate (test group) or saline (control group) was positioned on the outer surface of buccal bone immediately after tooth extraction and subsequently covered with a coronally advanced flap...
May 12, 2018: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/29752509/current-concepts-and-future-perspectives-in-computer-assisted-navigated-total-knee-replacement
#8
REVIEW
Tomoyuki Matsumoto, Naoki Nakano, John E Lawrence, Vikas Khanduja
BACKGROUND: Total knee replacements (TKR) aim to restore stability of the tibiofemoral and patella-femoral joints and provide relief of pain and improved quality of life for the patient. In recent years, computer-assisted navigation systems have been developed with the aim of reducing human error in joint alignment and improving patient outcomes. METHODS: We examined the current body of evidence surrounding the use of navigation systems and discussed their current and future role in TKR...
May 12, 2018: International Orthopaedics
https://www.readbyqxmd.com/read/29747561/similar-radiological-results-with-accelerometer-based-navigation-versus-conventional-technique-in-total-knee-arthroplasty
#9
Ing How Moo, Jerry Yong Qiang Chen, Dickson Hong Him Chau, See Wei Tan, Adrian Cheng Kiang Lau, Yee Sze Teo
BACKGROUND: The Zimmer iASSIST system is an accelerometer-based, portable navigation device for total knee arthroplasty (TKA) that does not require the use of a large console for alignment feedback as required in computer-assisted surgery. The purpose of this study was to determine the accuracy of the accelerometer-based system in component positioning and overall mechanical alignment. METHODS: Two groups of 30 patients each with primary osteoarthritis underwent TKA using either conventional method or Zimmer iASSIST navigation in 2013 was retrospectively studied...
May 2018: Journal of Orthopaedic Surgery
https://www.readbyqxmd.com/read/29735136/assessment-of-coronal-spinal-alignment-for-adult-spine-deformity-cases-after-intraoperative-t-square-shaped-use
#10
Swamy Kurra, Umesh Metkar, Henaku Yirenkyi, Richard A Tallarico, William F Lavelle
STUDY DESIGN: Retrospectively reviewed surgeries between 2011 and 2015 of patients who underwent posterior spinal deformity instrumentation with constructs involving fusions to pelvis and encompassing at least five levels. OBJECTIVE: Measure the radiographic outcomes of coronal malalignment (CM) after use of an intraoperative T square shaped instrument in posterior spinal deformity surgeries with at least five levels of fusion and extension to pelvis. BACKGROUND: Neuromuscular children found to benefit from intraoperative T square technique to help achieve proper coronal spinal balance with extensive fusions...
May 2018: Spine Deformity
https://www.readbyqxmd.com/read/29729796/sesamoid-position-in-hallux-valgus-in-relation-to-the-coronal-rotation-of-the-first-metatarsal
#11
REVIEW
Jin Su Kim, Ki Won Young
Hallux valgus (HV) is not a simple two-dimensional deformity but is instead a three-dimensional deformity that is closely linked to sesamoid position and first metatarsal (MT) pronation. HV may or may not be accompanied by sesamoid subluxation and/or first MT head pronation. Each of these scenarios should be assessed using weighted computed tomography scan preoperatively, and the necessary corrections should be performed accordingly.
June 2018: Foot and Ankle Clinics
https://www.readbyqxmd.com/read/29726781/microsurgical-anatomy-of-the-subthalamic-nucleus-correlating-fiber-dissection-results-with-3-t-magnetic-resonance-imaging-using-neuronavigation
#12
Abuzer Güngör, Şevki Serhat Baydın, Vanessa M Holanda, Erik H Middlebrooks, Cihan Isler, Bekir Tugcu, Kelly Foote, Necmettin Tanriover
OBJECTIVE Despite the extensive use of the subthalamic nucleus (STN) as a deep brain stimulation (DBS) target, unveiling the extensive functional connectivity of the nucleus, relating its structural connectivity to the stimulation-induced adverse effects, and thus optimizing the STN targeting still remain challenging. Mastering the 3D anatomy of the STN region should be the fundamental goal to achieve ideal surgical results, due to the deep-seated and obscure position of the nucleus, variable shape and relatively small size, oblique orientation, and extensive structural connectivity...
May 4, 2018: Journal of Neurosurgery
https://www.readbyqxmd.com/read/29721550/evaluation-of-functional-and-structural-leg-length-discrepancy-in-patients-with-adolescent-idiopathic-scoliosis-using-the-eos-imaging-system-a-prospective-comparative-study
#13
Tatsuhiro Sekiya, Yoichi Aota, Katsutaka Yamada, Kanichiro Kaneko, Manabu Ide, Tomoyuki Saito
Background: To our knowledge, no studies have reported the exact structural leg length discrepancies (LLDs) in patients with adolescent idiopathic scoliosis (AIS). Therefore, this study aimed to evaluate the differences between functional and structural LLDs and to examine the correlations between LLDs and spinopelvic parameters in patients with AIS using an EOS imaging system, which permits the three-dimensional reconstruction of spinal and lower-limb bony structures. Methods: Eighty-two consecutive patients with AIS underwent whole-body EOS radiography in a standing position between August 2014 and March 2016...
2018: Scoliosis and Spinal Disorders
https://www.readbyqxmd.com/read/29715696/robotic-arm-assisted-total-knee-arthroplasty-demonstrated-greater-accuracy-and-precision-to-plan-compared-with-manual-techniques
#14
Emily L Hampp, Morad Chughtai, Laura Y Scholl, Nipun Sodhi, Manoshi Bhowmik-Stoker, David J Jacofsky, Michael A Mont
This study determined if robotic-arm assisted total knee arthroplasty (RATKA) allows for more accurate and precise bone cuts and component position to plan compared with manual total knee arthroplasty (MTKA). Specifically, we assessed the following: (1) final bone cuts, (2) final component position, and (3) a potential learning curve for RATKA. On six cadaver specimens (12 knees), a MTKA and RATKA were performed on the left and right knees, respectively. Bone-cut and final-component positioning errors relative to preoperative plans were compared...
May 1, 2018: Journal of Knee Surgery
https://www.readbyqxmd.com/read/29714697/evaluation-of-the-marginal-integrity-of-a-bioactive-restorative-material
#15
Barry M Owens, Jeffrey G Phebus, William W Johnson
This in vitro study evaluated the marginal microleakage of a bioactive restorative with other restorative materials in standard Class V preparations. Sixty previously extracted, noncarious human molars were randomly assigned to 3 experimental groups (n = 20): a bioactive composite resin, a universal hybrid composite resin, and a resin-modified glass ionomer restorative. Class V cavities were prepared on the facial or lingual surface of each tooth so that coronal margins were located in enamel and apical margins in cementum (dentin)...
May 2018: General Dentistry
https://www.readbyqxmd.com/read/29709551/predictive-model-for-distal-junctional-kyphosis-after-cervical-deformity-surgery
#16
Peter G Passias, Dennis Vasquez-Montes, Gregory W Poorman, Themistocles Protopsaltis, Samantha R Horn, Cole A Bortz, Frank Segreto, Bassel Diebo, Chris Ames, Justin Smith, Virginie LaFage, Renaud LaFage, Eric Klineberg, Chris Shaffrey, Shay Bess, Frank Schwab
BACKGROUND CONTEXT: Distal Junctional Kyphosis (DJK) is a primary concern of surgeons correcting cervical deformity. Identifying patients and procedures at higher risk for developing this condition is paramount in improving patient selection and care. PURPOSE: Develop a risk index for DJK development in the first year after surgery. STUDY DESIGN/SETTING: Retrospective review of a prospective multicenter cervical deformity database. PATIENT SAMPLE: Patients over the age of 18 meeting one of the following deformities: cervical kyphosis (C2-7 Cobb angle >10°), cervical scoliosis (coronal Cobb angle >10°), positive cervical sagittal imbalance (C2-C7 sagittal vertical axis >4cm or T1-C6 >10 o ), or horizontal gaze impairment (chin-brow vertical angle >25o )...
April 27, 2018: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/29707180/accuracy-of-guided-surgery-via-stereolithographic-mucosa-supported-surgical-guide-in-implant-surgery-for-edentulous-patient-a-systematic-review
#17
REVIEW
Cheongbeom Seo, Gintaras Juodzbalys
Objectives: The purpose of the present study is to systematically review the accuracy of implant placement with mucosa-supported stereolithographic surgical guide and to find out what factors can influence the accuracy. Material and Methods: An electronic literature search was performed through the MEDLINE (PubMed) and EMBASE databases. The articles are including human studies published in English from October 2008 to October, 2017. From the examination of selected articles, deviations between virtual planning and actual implant placement were analysed regarding the global apical, global coronal, and angulation position...
January 2018: Journal of Oral & Maxillofacial Research
https://www.readbyqxmd.com/read/29705911/drilling-through-anteromedial-portal-with-a-femoral-aiming-device-ensures-a-sufficient-length-and-a-proper-graft-position-and-prevents-posterior-wall-breakage-during-anterior-cruciate-ligament-reconstruction
#18
Hasan Bombaci, Faruk Aykanat
OBJECTIVE: The aim of this study was to evaluate the characteristics of the femoral tunnel (FT) which was drilled through the AM portal by using a femoral aimer device and AP stability of the knee. METHODS: Thirty-eight patients, with the mean age 29.6 (range: 20-43) years, were evaluated after ACL reconstruction. The mean follow-up time was 31.9 (range: 16-57) months. The FT was drilled using a femoral aimer with different offset according to the graft size measured, through the AM portal...
April 28, 2018: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/29703098/pulmonologist-evaluation-on-new-ct-visualization-for-guidance-to-lung-lesions-during-bronchoscopy
#19
Pall Jens Reynisson, Håkon Olav Leira, Thomas Langø, Geir Arne Tangen, Peter Hatlen, Tore Amundsen, Erlend Fagertun Hofstad
OBJECTIVE: Endoluminal visualization in virtual and video bronchoscopy lacks information about the surrounding structures, and the traditional 2 D axial, coronal and sagittal CT views can be difficult to interpret. To address this challenge, we previously introduced a novel visualization technique, Anchored to Centerline Curved Surface, for navigated bronchoscopy. The current study compares the ACCuSurf to the standard ACS CT views as planning and guiding tools in a phantom study. MATERIAL AND METHODS: Bronchoscope operators navigated in physical phantom guided by virtual realistic image data constructed by fusion of CT dataset of phantom and anonymized patient CT data...
April 27, 2018: Minimally Invasive Therapy & Allied Technologies: MITAT
https://www.readbyqxmd.com/read/29699465/alterations-of-brain-grey-matter-density-and-olfactory-bulb-volume-in-patients-with-olfactory-loss-after-traumatic-brain-injury
#20
Pengfei Han, Nicole Winkler, Cornelia Hummel, Antje Hähner, Johannes Gerber, Thomas Hummel
Olfactory loss and traumatic brain injury (TBI) both lead to anatomical brain alterations in humans. Little research has been done on the structural brain changes for TBI patients with olfactory loss. Using voxel-based morphometry, the grey matter (GM) density was examined for twenty-two TBI patients with hyposmia, twenty-four TBI patients with anosmia, and twenty-two age-matched controls. Olfactory bulb (OB) volumes were measured by manual segmentation of acquired T2 weighted coronal slices using a standardized protocol...
April 27, 2018: Journal of Neurotrauma
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