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https://www.readbyqxmd.com/read/27911346/influence-of-pelvic-tilt-on-functional-acetabular-orientation
#1
Robert K Zahn, Sarah Grotjohann, Matthias Pumberger, Heiko Ramm, Stefan Zachow, Michael Putzier, Carsten Perka, Stephan Tohtz
BACKGROUND: Pelvic tilt influences acetabular orientation (AO). Anatomical AO can be measured in relation to the anterior pelvic plane (APP), functional AO can be calculated relative to table's plane. OBJECTIVE: To assess to what extent functional AO is determined by pelvic tilt and if APP and table plane give equal information for correct AO. METHODS: AO was evaluated by computed tomography (CT) scans of 138 patients. Pelvic tilt, anatomical and functional AO were measured, differences between the two reference planes were calculated...
November 25, 2016: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
https://www.readbyqxmd.com/read/27906943/fluoroscopic-sacroiliac-joint-injection-is-oblique-angulation-really-necessary
#2
Sandeep Khuba, Anil Agarwal, Sujeet Gautam, Sanjay Kumar
BACKGROUND: The conventional technique for sacroiliac (SI) joint injection involves aligning the anterior and posterior aspects of the SI joint under fluoroscopic guidance and then entering the SI joint in the most caudal aspect. OBJECTIVE: We wish to highlight that there is no added advantage to aligning both the anterior and posterior joint lines of the SI joint as it is time consuming, associated with additional radiation exposure, and may make the entry into the posterior SI joint technically more difficult...
November 2016: Pain Physician
https://www.readbyqxmd.com/read/27898445/pathologic-myopia
#3
Kyoko Ohno-Matsui
Pathologic myopia (PM) is the only myopia that causes the loss of best-corrected visual acuity. The main reason for best-corrected visual acuity loss is complications specific to PM, such as myopic maculopathy, myopic traction maculopathy, and myopic optic neuropathy (or glaucoma). The meta-analyses of the PM study group (META-PM study) made a classification system for myopic maculopathy. On the basis of this study, PM has been defined as eyes having atrophic changes equal to or more severe than diffuse atrophy...
November 2016: Asia-Pacific Journal of Ophthalmology
https://www.readbyqxmd.com/read/27892801/stability-and-migration-across-femoral-varus-derotation-osteotomies-in-children-with-neuromuscular-disorders
#4
Peter Buxbom, Stig Sonne-Holm, Niels Ellitsgaard, Christian Wong
Background and purpose - Studies have indicated that one-third of children with cerebral palsy (CP) develop dislocation of the hip that needs surgical intervention. When hip dislocation occurs during childhood surgical treatment consists of tenotomies, femoral varus derotation osteotomy (VDRO), and acetabuloplasty. Relapse is observed in one-fifth of cases during adolescence. In this prospective cohort study, we performed a descriptive evaluation of translation and rotation across VDROs in children with neuromuscular disorders and syndromes by radiostereometric analysis (RSA)...
November 28, 2016: Acta Orthopaedica
https://www.readbyqxmd.com/read/27890219/-over-reduction-after-distal-radius-fracture-pinning-in-young-active-patients-prevention-by-multiple-mixed-pinning
#5
O Delattre, G Greffe, L Stratan, F Duroux, J Donatien
Over-reduction is a classical complication following pinning of distal radius fractures. Indeed, the pinning techniques derived from Kapandji's technique do not allow anterior stabilization. A literature review and our experience show that it is an underestimated complication that can affect up to one-third of cases, but that is well tolerated if the anterior tilt is less than 20°. Excessive angulation of the dorsal intrafocal K-wires becomes a significant risk factor beyond 60°. Volar comminution of the fracture is an obvious predisposing factor...
December 2016: Hand Surgery and Rehabilitation
https://www.readbyqxmd.com/read/27889355/cervical-sagittal-alignment-in-adult-hyperkyphosis-treated-by-posterior-instrumentation-and-in-situ-bending
#6
F Paternostre, Y P Charles, E A Sauleau, J-P Steib
BACKGROUND: In the normal adult spine, a link between thoracolumbar and cervical sagittal alignment exists, suggesting adaptive cervical positional changes allowing horizontal gaze. In patients with thoracic hyperkyphosis, cervical adaptation to sagittal global alignment might be different from healthy individuals. However, this relationship has not clearly been reported in hyperkyphotic deformity. PURPOSE: The purpose of this study was to identify cervical sagittal alignment types observed on radiographs in young adults with thoracic hyperkyphosis...
November 23, 2016: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/27858241/repeated-posterior-dislocation-of-total-hip-arthroplasty-after-spinal-corrective-long-fusion-with-pelvic-fixation
#7
Hiroki Furuhashi, Daisuke Togawa, Hiroshi Koyama, Hironobu Hoshino, Tatsuya Yasuda, Yukihiro Matsuyama
PURPOSE: Several reports have indicated that anterior dislocation of total hip arthroplasty (THA) can be caused by spinal degenerative changes with excessive pelvic retroversion. However, no reports have indicated that posterior dislocation can be caused by fixed pelvic anteversion after corrective spine surgery. We describe a rare case experiencing repeated posterior THA dislocation that occurred at 5 months after corrective spinal long fusion with pelvic fixation. METHODS: A 64-year-old woman had undergone bilateral THA at 13 years before presenting to our institution...
November 17, 2016: European Spine Journal
https://www.readbyqxmd.com/read/27844230/coronal-balance-in-idiopathic-scoliosis-a-radiological-study-after-posterior-fusion-of-thoracolumbar-lumbar-curves-lenke-5-or-6
#8
Changwei Yang, Yunfei Zhao, Xiao Zhai, Jingfeng Li, Xiaodong Zhu, Ming Li
PURPOSE: To explore the compensation mechanisms of immediate postoperative coronal imbalance (CIB) and identify the correlation between preoperative lumbosacral obliquity and postoperative CIB in patients with Lenke 5/6 adolescent idiopathic scoliosis (AIS) during a 2-year follow-up period. METHODS: Medical records of patients with Lenke 5/6 AIS who were admitted in our hospital between Jan. 2008 and Jan. 2013 were reviewed retrospectively. General information of the patients including gender, age, and Risser classification was collected...
November 14, 2016: European Spine Journal
https://www.readbyqxmd.com/read/27843291/a-new-endocapsular-open-ring-for-prevention-of-anterior-and-posterior-capsule-opacification
#9
Ioannis G Pallikaris, Nela R Stojanovic, Harilaos S Ginis
PURPOSE: The aim of this study is to demonstrate the functionality of a new design of a thick endocapsular open ring for prevention of anterior capsule opacification (ACO) and posterior capsule opacification (PCO). SETTING: The Institute of Vision and Optics, University of Crete and University Hospital of Heraklion, Crete, Greece. DESIGN: Prospective, interventional pilot study. METHODS: Fifteen patients (17 eyes) underwent cataract surgery with phacoemulsification...
2016: Clinical Ophthalmology
https://www.readbyqxmd.com/read/27842571/medial-patellofemoral-ligament-reconstruction-using-a-bone-groove-and-a-suture-anchor-at-patellar-a-safe-and-firm-fixation-technique-and-3-year-follow-up-study
#10
Hong-De Wang, Jiang-Tao Dong, Shi-Jun Gao
BACKGROUND: Graft fixation is critical to the restoration of the medial patella of femoral ligament function and long-term success. Numerous fixations at the patella have been described, while the complications including patellar fractures, violation of the posterior patella and delay of tendon-to-bone healing remain significant challenges. Here, we describe a safe and firm fixation at the patellar for medial patellofemoral ligament (MPFL) reconstruction and explore the safety angle of drilling the suture anchor at different morphology of the patellar...
November 14, 2016: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/27837269/internal-and-external-morphology-of-adults-of-the-appendicularian-oikopleura-dioica-an-sem-study
#11
Takeshi A Onuma, Miho Isobe, Hiroki Nishida
The appendicularian, Oikopleura dioica, is a planktonic tunicate that retains a swimming tadpole shape throughout its life. It has relatively few cells and exhibits fast development, yet it has a basic chordate body plan. In this study, the morphology of adults was investigated using scanning electron microscopy (SEM) and fine 3D images of most organs were taken. The trunk epidermis is organized into bilateral territories secreting the house that includes the food-trapping filter. The pharynx extends ventrally and posteriorly to the gill openings and esophagus, respectively...
November 11, 2016: Cell and Tissue Research
https://www.readbyqxmd.com/read/27836765/nasal-breathing-and-the-vertical-dimension-a-cephalometric-study
#12
Amal El Aouame, Asmaa Daoui, Farid El Quars
INTRODUCTION: The aim of this work was to perform a cephalometric analysis of the craniofacial parameters and natural head posture of mouth-breathers compared with control subjects, and to study the relationship between nose-breathing and the vertical dimension. MATERIAL AND METHODS: The headfilms taken at start of treatment of 53 cases (28 girls, 25 boys) aged 9 to 30 who consulted the dento-facial orthopedic department of the Ibn Rochd Casablanca dental consultation and treatment center were studied...
November 8, 2016: International Orthodontics
https://www.readbyqxmd.com/read/27821944/influence-of-sacral-sitting-in-a-wheelchair-on-the-distribution-of-contact-pressure-on-the-buttocks-and-back-and-shear-force-on-the-ischial-region
#13
Tadahiko Kamegaya
[Purpose] The purpose of this study was to investigate the influence of sacral sitting in a wheelchair on contact pressure on the buttocks and back, and shear force on the ischial region. [Subjects and Methods] Twenty-six healthy adults assumed two postures while seated in a wheelchair: a basic sitting posture, and sacral sitting with the pelvis tilted posteriorly and the ischium slid forward by 5 cm relative to its position in the basic sitting posture. The inclination angle of the sagittal pelvic line, contact pressures and contact areas on the buttocks and back, and the shear force generated by sliding the ischial region forward were measured...
October 2016: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/27816390/biomechanical-analysis-of-combining-head-down-tilt-traction-with-vibration-for-different-grades-of-degeneration-of-the-lumbar-spine
#14
Sicong Wang, Lizhen Wang, Yawei Wang, Chengfei Du, Ming Zhang, Yubo Fan
In recent years, a combination of traction and vibration therapy is usually used to alleviate low back pain (LBP) in clinical settings. Combining head-down tilt (HDT) traction with vibration was demonstrated to be efficacious for LBP patients in our previous study. However, the biomechanics of the lumbar spine during this combined treatment is not well known and need quantitative analysis. In addition, LBP patients have different grades of degeneration of the lumbar spinal structure, which are often age related...
November 2, 2016: Medical Engineering & Physics
https://www.readbyqxmd.com/read/27807770/modified-one-stage-posterior-anterior-combined-surgery-with-posterior-pedicle-instrumentation-and-anterior-monosegmental-reconstruction-for-unstable-denis-type-b-thoracolumbar-burst-fracture
#15
Oujie Lai, Yong Hu, Zhenshan Yuan, Xiaoyang Sun, Weixin Dong, Jiao Zhang, Binke Zhu
PURPOSE: This study aimed to evaluate the clinical and radiological results in patients with unstable Denis type B thoracolumbar burst fractures treated by modified one-stage posterior/anterior combined surgery. METHODS: Thirty-one patients with unstable Denis type B thoracolumbar burst fractures were enrolled in this study. The patients underwent one-stage posterior/anterior combined surgery with posterior instrumentation using pedicle screws and anterior monosegmental reconstruction utilizing titanium mesh cages...
November 2, 2016: European Spine Journal
https://www.readbyqxmd.com/read/27807288/the-morphology-and-prevalence-of-the-deltoid-complex-ligament-of-the-ankle-a-meta-analysis-of-cadaveric-studies
#16
REVIEW
Kaissar Yammine
: The deltoid ligament is a complex structure of the tibiotalar joint that limits the translation and tilting of the talus. It is often associated with injuries of the ankle joint. The deltoid complex ligament has 2 layers; one superficial with 4 bands and the other deep with 2 bands. Nevertheless, the prevalence and size of its components are reported with some variability in the literature. The aim of this meta-analysis is to generate weighted values of the prevalence, size, and attachment surface areas of its components...
November 1, 2016: Foot & Ankle Specialist
https://www.readbyqxmd.com/read/27807120/outcomes-of-spinal-fusion-for-cervical-kyphosis-in-children-with-neurofibromatosis
#17
Ilkka J Helenius, Paul D Sponseller, William Mackenzie, Thierry Odent, John P Dormans, Jahangir Asghar, Karl Rathjen, Joshua M Pahys, Firoz Miyanji, Daniel Hedequist, Jonathan H Phillips
BACKGROUND: Cervical kyphosis may occur with neurofibromatosis type I (NF1) and is often associated with vertebral dysplasia. Outcomes of cervical spinal fusion in patients with NF1 are not well described because of the rarity of the condition. We aimed to (1) characterize the clinical presentation of cervical kyphosis and (2) report the outcomes of posterior and anteroposterior cervical fusion for the condition in these children. METHODS: The medical records and imaging studies of 22 children with NF1 who had undergone spinal fusion for cervical kyphosis (mean, 67°) at a mean age of 11 years and who had been followed for a minimum of 2 years were reviewed...
November 2, 2016: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/27802891/reoperations-and-mortality-in-383-patients-operated-with-parallel-screws-for-garden-i-ii-femoral-neck-fractures-with-up-to-ten-years-follow-up
#18
Le Nhat Duc Do, Torbjørn Marstein Kruke, Olav A Foss, Trude Basso
INTRODUCTION: The objective of this study was to identify indications and predictors for subsequent surgeries in the same hip and to evaluate life expectancy following screw fixation of undisplaced femoral neck fractures (FNF). The study further aimed to determine the necessary follow-up time for future studies aiming to evaluate the treatment of such fractures. MATERIALS AND METHODS: This is a single-center retrospective cohort study with prospectively collected data including skeletally mature patients with undisplaced FNFs operated between 2005 and 2013...
December 2016: Injury
https://www.readbyqxmd.com/read/27793326/risk-factors-of-avascular-necrosis-of-the-femoral-head-and-fixation-failure-in-patients-with-valgus-angulated-femoral-neck-fractures-over-the-age-of-50-years
#19
Hyung Keun Song, Ho June Choi, Kyu Hyun Yang
INTRODUCTION: The aim of our study was to identify the risk factors for avascular necrosis of the femoral head (AVN) and fixation failure (FF) after screw osteosynthesis in patients with valgus angulated femoral neck fractures. PATIENTS AND METHODS: We conducted a retrospective study of 308 patients (mean age, 72.5 years, range, 50-97 years), with a mean follow-up of 21.4 months (range, 12-64 months). The risk for failure in treatment (FIT) associated with patient- and fracture-related factors was evaluated by logistic regression analyses...
December 2016: Injury
https://www.readbyqxmd.com/read/27787465/influence-of-scapular-position-on-the-core-musculature-activation-in-the-prone-plank-exercise
#20
Juan M Cortell-Tormo, Miguel García-Jaén, Iván Chulvi-Medrano, Sergio Hernández-Sánchez, Ángel G Lucas-Cuevas, Juan Tortosa-Martínez
Prone plank is a widely used exercise in core stability training. Research has shown that pelvic tilt plays an important role on the electromyographical (EMG) activation of core musculature. However, the influence of scapular position on EMG activation is currently unknown. Therefore, this study evaluated the influence of scapular position on the core muscles during a prone plank. Surface electromyography of the rectus abdominis (RA), external oblique (EO), internal oblique (IO) and erector spinae (ES) was collected in fifteen participants (10 men, 5 women)...
October 26, 2016: Journal of Strength and Conditioning Research
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