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https://www.readbyqxmd.com/read/28740437/the-larynx-ruler-to-measure-height-and-profile-of-vocal-folds-a-proof-of-concept
#1
Gauthier Desuter, Benjamin Mertens, Alain Delchambre, Julie van Lith-Bijl, Peter Paul van Benthem, Elisabeth Sjögren
INTRODUCTION: Glottic leakage during phonation is a direct consequence of unilateral vocal fold (VF) paralysis. This air leakage can be in the horizontal plane and in the vertical plane. Presently, there is no easily applicable medical device allowing noninvasive, office-based measurement of the relative vertical position of the VFs. The larynx ruler (LR) is a laser-based measuring device that could meet the previously stated need, using a flexible endoscope. This study represents a proof of concept regarding the use of the LR in assessing VF relative positions in the vertical plane...
2017: Medical Devices: Evidence and Research
https://www.readbyqxmd.com/read/28732611/comparison-of-posterior-capsule-opacification-development-with-2%C3%A2-single-piece-intraocular-lens-types
#2
Christina Leydolt, Daniel Schartmüller, Luca Schwarzenbacher, Markus Schranz, Sabine Schriefl, Rupert Menapace
PURPOSE: To evaluate the differences in the incidence of posterior capsule opacification (PCO) and visual and optical performance between 2 hydrophobic acrylic single-piece sharp-edged intraocular lenses (IOLs) over 3 years. SETTING: Department of Ophthalmology, Medical University of Vienna, Vienna, Austria. DESIGN: Prospective randomized case series. METHODS: Patients with bilateral cataract were prospectively randomized to receive an Eyecee One IOL (IOL A) or an Acrysof SN60WF IOL (IOL B) and were followed for 36 months...
June 2017: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/28725046/the-location-of-the-deepest-point-of-the-eyeball-determines-the-optic-disc-configuration
#3
Yong Chan Kim, Younhea Jung, Hae-Young Lopilly Park, Chan Kee Park
Tilted and rotated appearances are hallmarks of the myopic optic disc. As the eyeball grows axially, the posterior pole elongates not only globally but in a localized manner as well. In this process, the optic disc is pulled towards the deepest point of the elongated eyeball, which might result in a change in optic disc configuration. Thus, we hypothesized that analyzing the variation of posterior pole contour can play a major role in understanding optic disc configuration in myopic subjects. By analyzing consecutive images of swept source OCT coronal sections at the posterior pole, the deepest interface between Bruch's membrane and the choroid could be identified as the deepest point of the eyeball (DPE)...
July 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28700454/posterior-only-hemivertebra-resection-for-congenital-cervicothoracic-scoliosis-correcting-neck-tilt-and-balancing-the-shoulders
#4
Zhonghui Chen, Yong Qiu, Zezhang Zhu, Song Li, Xi Chen, Liang Xu, Xu Sun
STUDY DESIGN: A retrospective study. OBJECTIVE: To evaluate radiographic and cosmetic outcomes following posterior-only cervicothoracic hemivertebra resection and instrumentation. SUMMARY OF BACKGROUND DATA: Cervicothoracic hemivertebra is a rare congenital deformity. It locates between the mobile cervical spine and the fixed thoracic spine, leading to rapid curve progression, shoulder imbalance, fixed torticollis and facial asymmetry. METHODS: This study reviewed a consecutive series of 18 patients with cervicothoracic hemivertebra...
July 11, 2017: Spine
https://www.readbyqxmd.com/read/28700445/auditory-brainstem-implant-array-position-varies-widely-among-adult-and-pediatric-patients-and-is-associated-with-perception
#5
Samuel R Barber, Elliott D Kozin, Aaron K Remenschneider, Sidharth V Puram, Max Smith, Barbara S Herrmann, Mary E Cunnane, M Christian Brown, Daniel J Lee
OBJECTIVES: The auditory brainstem implant (ABI) provides sound awareness to patients who are ineligible for cochlear implantation. Auditory performance varies widely among similar ABI cohorts. We hypothesize that differences in electrode array position contribute to this variance. Herein, we classify ABI array position based on postoperative imaging and investigate the relationship between position and perception. DESIGN: Retrospective review of pediatric and adult ABI users with postoperative computed tomography...
July 11, 2017: Ear and Hearing
https://www.readbyqxmd.com/read/28697862/acetabular-and-femoral-anteversions-in-standing-position-are-outside-the-proposed-safe-zone-after-total-hip-arthroplasty
#6
Jean Y Lazennec, Frederic Thauron, Christopher B Robbins, Aidin E Pour
BACKGROUND: Although most hip dislocations occur in either standing or sitting position, the safe zone for implant position is defined for the supine position. Our goal was to determine preoperative and postoperative pelvis and hip orientations and whether the safe zone defined in supine position can be used to assess standing radiographs. METHODS: Preoperative and postoperative three-dimensional EOS images were assessed in 66 total hip arthroplasty patients. None of the patients had dislocation within the follow-up period (12-36 months)...
June 20, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28697529/correction-of-pelvic-tilt-and-pelvic-rotation-in-cup-measurement-after-tha-an-experimental-study
#7
Timo Julian Schwarz, Markus Weber, Christian Dornia, Michael Worlicek, Tobias Renkawitz, Joachim Grifka, Benjamin Craiovan
Purpose Accurate assessment of cup orientation on postoperative pelvic radiographs is essential for evaluating outcome after THA. Here, we present a novel method for correcting measurement inaccuracies due to pelvic tilt and rotation. Method In an experimental setting, a cup was implanted into a dummy pelvis, and its final position was verified via CT. To show the effect of pelvic tilt and rotation on cup position, the dummy was fixed to a rack to achieve a tilt between + 15° anterior and -15° posterior and 0° to 20° rotation to the contralateral side...
July 11, 2017: RöFo: Fortschritte Auf Dem Gebiete der Röntgenstrahlen und der Nuklearmedizin
https://www.readbyqxmd.com/read/28689392/preservation-of-motion-at-the-surgical-level-after-minimally-invasive-posterior-cervical-foraminotomy
#8
Young-Seok Lee, Young-Baeg Kim, Seung-Won Park, Dong-Ho Kang
OBJECTIVE: Although minimally invasive posterior cervical foraminotomy (MI-PCF) is an established approach for motion preservation, the outcomes are variable among patients. The objective of this study was to identify significant factors that influence motion preservation after MI-PCF. METHODS: Forty-eight patients who had undergone MI-PCF between 2004 and 2012 on a total of 70 levels were studied. Cervical parameters measured using plain radiography included C2-7 plumb line, C2-7 Cobb angle, T1 slope, thoracic outlet angle, neck tilt, and disc height before and 24 months after surgery...
July 2017: Journal of Korean Neurosurgical Society
https://www.readbyqxmd.com/read/28669858/pelvic-incidence-a-fixed-value-or-can-you-change-it
#9
Howard M Place, Ann M Hayes, Stephen B Huebner, Andy M Hayden, Heidi Israel, Jennifer L Brechbuhler
BACKGROUND CONTEXT: There has been renewed interest in the pelvic vertebrae by spinal surgeons recently. Those involved in working with patients with adult spinal deformity, focus on the position of the fused spine as it relates to the pelvis, and determine success or failure by specific numbers for given pelvic parameters. The pelvic parameters that are commonly measured for these patients are pelvic tilt, sacral slope, and pelvic incidence. Out of the three, pelvic incidence has always been considered to be the fixed measurement, while pelvic tilt and sacral slope have the capacity to change in relation to external forces...
June 29, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28664261/the-fibular-head-projection-is-of-limited-use-as-a-radiographic-landmark-in-preoperative-planning-of-total-knee-arthroplasty
#10
Doerte Matziolis, Marius Meiser, Norbert Sieber, Ulf Teichgräber, Georg Matziolis
INTRODUCTION: The projection of the fibular head is recommended as a quality indicator of a correct radiographic projection. However, this landmark has yet to be sufficiently validated. METHODS: The MRIs of 334 knee joints were included. On the MRIs, the distance between the FH and lateral tibial cortical bone was simulated in projections parallel to surgically relevant axes. Then, the Pearson correlation coefficient between the distance of the FH to the lateral tibial cortical bone and the projection plane causing this was determined...
June 29, 2017: Skeletal Radiology
https://www.readbyqxmd.com/read/28662692/comparison-of-fixed-and-mobile-bearing-total-knee-arthroplasty-in-terms-of-patellofemoral-pain-and-function-a-prospective-randomised-controlled-trial
#11
P Z Feczko, L M Jutten, M J van Steyn, P Deckers, P J Emans, J J Arts
BACKGROUND: Despite growing evidence in the literature, there is still a lack of consensus regarding the use of the mobile-bearing (MB) design total knee arthroplasty (TKA). METHODS: In a prospective, comparative, randomised, single centre trial, 106 patients with end-stage osteoarthritis of the knee were randomised to either an MB or fixed-bearing (FB) group to receive posterior stabilised (PS)-TKA using a standard medial parapatellar approach and patellar resurfacing with follow-up (FU) for 5 years...
June 29, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28653182/coronal-femoral-tka-position-significantly-influences-in-vivo-patellar-loading-in-unresurfaced-patellae-after-primary-total-knee-arthroplasty
#12
Omer Slevin, Florian A Schmid, Filippo-Franco Schiapparelli, Helmut Rasch, Felix Amsler, Michael T Hirschmann
PURPOSE: As patellar tracking and loading is influenced by tibial tuberosity and trochlear groove (TT-TG) distance, patellar height, thickness and tilt as well as TKA component position, it was our hypothesis that these parameters significantly correlate with patellar BTU intensity and localization in SPECT/CT. The purpose of the study was to investigate whether TKA component position as well as the height, thickness and tilt of the unresurfaced patella influences the intensity and the distribution pattern of BTU in SPECT/CT...
June 26, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28652066/effects-of-scapular-stabilization-exercise-training-on-scapular-kinematics-disability-and-pain-in-subacromial-impingement-a-randomized-controlled-trial
#13
Elif Turgut, Irem Duzgun, Gul Baltaci
OBJECTIVE: To investigate the effects of two different exercise programs on three-dimensional scapular kinematics, disability, and pain in participants with subacromial impingement syndrome (SIS). DESIGN: Randomized controlled trial. SETTING: Outpatient clinic and research laboratory. PARTICIPANTS: Thirty participants who were diagnosed with SIS and who also exhibited scapular dyskinesis. INTERVENTIONS: The participants were randomized in two different exercise groups: 1) shoulder girdle stretching and strengthening with additional scapular stabilization exercises based on a kinetic chain approach (intervention group), and 2) shoulder girdle stretching and strengthening exercises only (control group)...
June 23, 2017: Archives of Physical Medicine and Rehabilitation
https://www.readbyqxmd.com/read/28647461/toric-intraocular-lenses-versus-peripheral-corneal-relaxing-incisions-for-astigmatism-between-0-75-and-2-5-diopters-during-cataract%C3%A2-surgery
#14
Mayank A Nanavaty, Kaveeta K Bedi, Shahnaz Ali, Mathew Holmes, Saul Rajak
PURPOSE: To compare the outcomes after toric intraocular lens (tIOL) or peripheral corneal relaxing incisions (PCRI) for keratometric astigmatism (KA) between 0.75 and 2.5 diopters (D) during cataract surgery. DESIGN: Prospective randomized clinical trial. METHODS: Eighty eyes (80 participants) received either tIOL or PCRI and were assessed preoperatively, 1, 3, 6, and 12 months postoperatively. PRIMARY OUTCOME MEASURE: Uncorrected (UCDVA) and best-corrected distance logMAR visual acuity (BCDVA) at 12 months...
June 21, 2017: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/28633973/patellofemoral-osteoarthritis-progression-and-alignment-changes-after-open-wedge-high-tibial-osteotomy-do-not-affect-clinical-outcomes-at-mid-term-follow-up
#15
Kenichi Goshima, Takeshi Sawaguchi, Kenji Shigemoto, Shintaro Iwai, Akira Nakanishi, Ken Ueoka
PURPOSE: To evaluate the clinical and radiological outcomes of open-wedge high tibial osteotomy (OWHTO) with respect to the patellofemoral joint and to assess whether patellofemoral osteoarthritis (OA) progression and alignment changes after OWHTO affect clinical outcomes. METHODS: Inclusion criteria were consecutive patients who underwent OWHTO from March 2005 to September 2013. Exclusion criteria were loss to follow-up within 2 years and absence of second-look arthroscopy findings at the time of plate removal...
June 17, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28626324/lower-trunk-muscle-activity-induced-alignment-and-cop-position-during-single-leg-standing
#16
Tetsuya Nakao, Kenichi Masuda, Shigeyuki Kanai, Junzo Tsujita, Kazufumi Hirakawa, Shuichi Okada
[Purpose] The purpose of this study was to clarify fundamental changes induced by lower trunk muscle contraction during single-leg standing. [Subjects and Methods] Ten healthy normal males participated in this study. All subjects could accurately perform lower trunk muscle contraction-type Abdominal Expansion (AE), Abdominal Bracing (AB), and Abdominal Cave-in (AC). The alignment and position of the center of foot pressure (COP) during single-leg standing with SLR and step position after rotating the body from single-leg standing with maximum SLR were measured in each lower trunk muscle contraction type...
June 2017: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/28622902/a-critical-analysis-of-sagittal-plane-deformity-correction-with-minimally-invasive-adult-spinal-deformity-surgery-a-2-year-follow-up-study
#17
Gregory M Mundis, Jay D Turner, Vedat Deverin, Juan S Uribe, Pierce Nunley, Praveen Mummaneni, Neel Anand, Paul Park, David O Okonkwo, Michael Y Wang, Shay Bess, Adam S Kanter, Richard Fessler, Stacie Nguyen, Behrooz A Akbarnia
INTRODUCTION: Sagittal plane realignment is important to achieve desirable clinical outcomes after adult spinal deformity (ASD) surgery. This study evaluates the impact of minimally invasive (MIS) techniques on sagittal plane alignment and clinical outcomes in ASD patients. METHODS: A retrospective, multi-center review of ASD patients (age ≥18 years, and with one of the following: coronal Cobb ≥20°, sagittal vertical axis [SVA] >5 cm, and/or pelvic tilt >25°), MIS surgery, and four or more levels instrumented...
July 2017: Spine Deformity
https://www.readbyqxmd.com/read/28606637/three-dimensional-shoulder-motion-after-teres-major-or-latissimus-dorsi-tendon-transfer-for-posterosuperior-rotator-cuff-tears
#18
Jan Ferdinand Henseler, Arjen Kolk, Bob Zondag, Jochem Nagels, Jurriaan H de Groot, Rob G H H Nelissen
BACKGROUND: Teres major (TM) transfer and latissimus dorsi (LD) transfer are essential treatment options in patients with posterosuperior rotator cuff (RC) tears. The purpose of this study was to quantify shoulder kinematics before and after TM transfer and LD transfer in posterosuperior RC tear patients. METHODS: In this prospective cohort study, we quantitatively measured shoulder movements using an electromagnetic tracking device (Flock of Birds) preoperatively and 1 year after either TM (n = 13) or LD (n = 9) tendon transfer...
June 9, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28605288/neck-and-scapula-focused-exercise-training-on-patients-with-non-specific-neck-pain-a-randomized-controlled-trial
#19
Taha Ibrahim Yildiz, Elif Turgut, Irem Duzgun
OBJECTIVES: The purpose of this study was to investigate the effects of additional 6-week scapular stabilization training in patients with non-specific neck pain (NNP). MATERIALS AND METHOD: Thirty patients with non-specific neck pain were randomly allocated to the study. Fifteen participants in the intervention group (IG) received neck-focused exercise and scapular stabilization training while 15 participants in the control group(CG) received neck-focused exercise training...
June 12, 2017: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/28602325/pigment-dispersion-syndrome-and%C3%A2-pigmentary-glaucoma-after-secondary-sulcus-transscleral-fixation-of-single-piece-foldable%C3%A2-posterior-chamber-intraocular-lenses%C3%A2-in%C3%A2-chinese-aphakic-patients
#20
Nianting Tong, Fuling Liu, Ting Zhang, Liangyu Wang, Zhanyu Zhou, Huimin Gong, Fuxiang Yuan
PURPOSE: To describe secondary pigment dispersion syndrome (PDS) and pigmentary glaucoma after secondary sulcus transscleral fixation of 1-piece hydrophobic acrylic foldable posterior chamber intraocular lenses (PC IOLs) in aphakic patients in a Chinese population. SETTING: Department of Ophthalmology, Qingdao Municipal Hospital, Qingdao, China. DESIGN: Retrospective case series. METHODS: This chart review included eyes that had secondary sulcus transscleral fixation of a 1-piece hydrophobic acrylic foldable PC IOL (Tecnis ZCB00) between March 2011 and March 2014...
May 2017: Journal of Cataract and Refractive Surgery
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