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https://www.readbyqxmd.com/read/28228100/influence-of-hooks-and-a-lag-screw-on-internal-fixation-plates-for-lateral-malleolar-fracture-a-biomechanical-and-ergonomic-study
#1
Rina Sakai, Masataka Uchino, Terumasa Yoneo, Yasuaki Ohtaki, Hiroaki Minehara, Terumasa Matsuura, Tsutomu Gomi, Masanobu Ujihira
BACKGROUND: For internal fixation of AO classification Type B lateral malleolar fracture, insertion of lag screws into the fracture plane and fixation with a one-third tubular plate as a neutralization plate are the standard treatment procedures. The one-third tubular plate is processed to a hook shape and hung on the distal end of the fibula. In this study, to compare the function of the hook and lag screws of a one-third tubular plate and LCP for osteosynthesis of lateral malleolar fracture, mechanical indices of internal fixation were compared among the one-third tubular plates with lag screws with and without the hook and a locking compression plate...
February 23, 2017: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/28226753/determining-the-difference-in-eyegaze-measurements-in-individuals-with-age-related-macular-degeneration
#2
Huiying Liu, Damon Wong, Ai Ping Yow, Yanwu Xu, Fengshou Yin, Augustinus Laude, Tock Han Lim, Huiying Liu, Damon Wong, Ai Ping Yow, Yanwu Xu, Fengshou Yin, Augustinus Laude, Tock Han Lim, Augustinus Laude, Huiying Liu, Tock Han Lim, Fengshou Yin, Yanwu Xu, Damon Wong, Ai Ping Yow
Age-related Macular Degeneration (AMD) is one of the leading causes of blindness in the elderly. Visual loss associated with AMD often results in a central scotoma which is an alteration in the central vision, leading to distortion or loss of vision. Current methods of detecting AMD are typically manual, require holding fixation and an external response trigger. In this paper, we propose the use of eyegaze tracking to detect for the presence of AMD, using a simple set of test patterns. Experimental results show that the derived eyegaze measurements can help to identify individuals with AMD from healthy individuals...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28222052/preventing-seal-leak-during-negative-pressure-wound-therapy-near-external-fixators-a-technical-tip
#3
Brian J Mannino, Michael W Pullen, Robert Gaines
Negative pressure wound therapy is an effective tool for the treatment of open wounds. Occasionally these wounds are associated with injuries or procedures that require treatment with an external fixator. This article shows how a simple, inexpensive, and commercially available product can be used to prevent loss of suction around external fixator pins within the negative pressure wound treatment area.
March 2017: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/28216752/management-of-gustilo-anderson-iii-b-open-tibial-fractures-by-primary-fascio-septo-cutaneous-local-flap-and-primary-fixation-the-fix-and-shift-technique
#4
P R Ramasamy
BACKGROUND: Open fractures of tibia have posed great difficulty in managing both the soft tissue and the skeletal components of the injured limb. Gustilo Anderson III B open tibial fractures are more difficult to manage than I, II, and III A fractures. Stable skeletal fixation with immediate soft tissue cover has been the key to the successful outcome in treating open tibial fractures, in particular, Gustilo Anderson III B types. If the length of the open wound is larger and if the exposed surface of tibial fracture and tibial shaft is greater, then the management becomes still more difficult...
January 2017: Indian Journal of Orthopaedics
https://www.readbyqxmd.com/read/28216748/comparison-of-occipitocervical-and-atlantoaxial-fusion-in-treatment-of-unstable-jefferson-fractures
#5
Yong Hu, Zhen-Shan Yuan, Christopher K Kepler, Wei-Xin Dong, Xiao-Yang Sun, Jiao Zhang
BACKGROUND: Controversy exists regarding the management of unstable Jefferson fractures, with some surgeons performing reduction and immobilization of the patient in a halo vest and others performing open reduction and internal fixation. This study compares the clinical and radiological outcome parameters between posterior atlantoaxial fusion (AAF) and occipitocervical fusion (OCF) constructs in the treatment of the unstable atlas fracture. MATERIALS AND METHODS: 68 consecutive patients with unstable Jefferson fractures treated by AAF or OCF between October 2004 and March 2011 were included in this retrospective evaluation from institutional databases...
January 2017: Indian Journal of Orthopaedics
https://www.readbyqxmd.com/read/28213624/oligometastatic-colorectal-cancer-is-single-site-bony-colorectal-metastasis-a-treatable-condition
#6
Noel Cassar, Adrian Ben Cresswell, Brendan Moran
INTRODUCTION: A potentially resectable bony metastasis in the context of oligometastatic colorectal cancer is uncommon. Bony metastases are usually considered a late event with poor prognosis and generally associated with liver and/or lung metastases. INDEX CASE: A previously healthy 33-year-old gentleman, with no family history of colorectal cancer, presented with rectal bleeding and at colonoscopy had a biopsy-proven adenocarcinoma of the rectum, 7 cm from the anal verge...
February 17, 2017: International Journal of Colorectal Disease
https://www.readbyqxmd.com/read/28208956/a-comprehensive-study-of-internal-distraction-plating-an-alternative-method-for-distal-radius-fractures
#7
Mohit J Jain, Kinjal J Mavani
INTRODUCTION: The management of highly comminuted distal radius fractures still remains a major treatment challenge. Articular comminution and compromised bone quality are the culprits. One novel approach is the technique of Internal Distraction Plating which involves "bridging" the fracture with the use of a standard 3.5mm plate applied dorsally in distraction from the radius, proximal to the fracture, to the long finger metacarpal distally, bypassing the comminuted segment. The plate is removed once fracture union has been achieved...
December 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28204927/bicortical-facet-screws-as-a-new-option-for-posterior-c2-fixation-anatomical-study-and-clinical-experience
#8
Angelo Rusconi, E Freitas-Olim, P Coloma, R Messerer, C Barrey
PURPOSE: C2 fixation is a demanding procedure, particularly in patients with variants of C1-C2 anatomy. The inferior articular process (IAP) of the axis can be an alternative for screw placement. We report the results of a CT study of C2 IAP anatomy and we present the clinical experience of 28 patients operated with this technique. METHODS: Anatomical study: 50 CT angiographies of the vertebral arteries (VA) were used for this study and, therefore, 100 IAPs were considered...
February 15, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28199292/management-of-open-tibial-shaft-fractures-does-the-timing-of-surgery-affect-outcomes
#9
Oscar A Duyos, David Beaton-Comulada, Ariel Davila-Parrilla, Jose Carlos Perez-Lopez, Krystal Ortiz, Christian Foy-Parrilla, Francisco Lopez-Gonzalez
BACKGROUND: Open tibial shaft fractures require emergent care. Treatment with intravenous antibiotics and fracture débridement within 6 to 24 hours is recommended. Few studies have examined outcomes when surgical treatment is performed >24 hours after occurrence of the fracture. METHODS: This retrospective study included 227 patients aged ≥18 years with isolated open tibial shaft fractures in whom the time to initial débridement was >24 hours. The statistical analysis was based on time from injury to surgical débridement, Gustilo-Anderson classification, method of fixation, union status, and infection status...
March 2017: Journal of the American Academy of Orthopaedic Surgeons
https://www.readbyqxmd.com/read/28195886/pedicled-sensate-composite-calcaneal-flap-in-children-with-congenital-tibial-pseudoarthrosis
#10
Mauricio L D Mongon, Fernando C Ribera, Antonio M A de Souza, Aurelio L Sposito, William D Belangero, Bruno Livani
BACKGROUND: The preservation and functionality of a limb affected by a malformation (such as congenital pseudoarthrosis of the tibia) or a severely mangled lower limb in children, despite modern reconstructive techniques, remains challenging, often eventually requiring amputation to achieve a better outcome. The classical Syme and Boyd procedures are functionally better than transtibial (TT) amputation, but are not feasible for congenital tibial pseudoarthrosis. TT amputation delivers an excellent, effective, and functional stump that usually leads, after prosthetization, to a functional gait...
February 10, 2017: Journal of Pediatric Orthopedics
https://www.readbyqxmd.com/read/28194386/femur-lengthening-with-monoplanar-external-fixator-associated-with-locked-intramedullary-nail
#11
Henrique Paradella Alvachian Fernandes, Danilo Gabriel do Nascimento Silva Barronovo, Fabio Lucas Rodrigues, Marcos Hono
OBJECTIVE: This study aimed to demonstrate that the lengthening technique of an external fixator associated with locked intramedullary nail is an efficient method that decreases the duration of the external fixation and improves the rehabilitation period. METHODS: From January of 2005 to May of 2014, 31 patients with mean lower limb discrepancy of 5.31 cm were treated. The etiologies of the deformity were femur fracture sequelae, infection, hip development dysplasia, polio, and congenital short femur...
January 2017: Revista Brasileira de Ortopedia
https://www.readbyqxmd.com/read/28185981/analysis-of-the-s2-alar-iliac-screw-as-compared-with-the-traditional-iliac-screw-does-it-increase-stability-with-sacroiliac-fixation-of-the-spine
#12
Daniel G Hoernschemeyer, Troy D Pashuck, Ferris M Pfeiffer
BACKGROUND CONTEXT: Arthrodesis of the lumbosacral junction continues to be a challenge in pediatric and adult spinal deformity surgery. PURPOSE: To evaluate the biomechanical rigidity of two types of lumbosacral fixation. Our hypothesis was that the use of S2 alar-iliac (S2AI) fixation will result in statistically similar biomechanical fixation as compared with use of an iliac screw with a 95% confidence interval. STUDY SETTING: Controlled biomechanical laboratory METHODS: Ten human cadaveric lumbosacral specimens were separated into two test groups: (1) S2AI (n=5) and (2) iliac screw (n=5)...
February 6, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28185373/dual-anchor-internal-pulse-generator-technique-may-lower-risk-of-twiddler-s-syndrome-a-case-series-and-literature-review
#13
Michał Roman Sobstyl, Mirosław Ząbek, Grażyna Brzuszkiewicz-Kuźmicka, Tomasz Pasterski
BACKGROUND: Twiddler's syndrome (TS) is described as a spontaneous rotation or intentional external manipulation of implanted internal pulse generator (IPG) for neurological or cardiac disorders. There have been identified some predisposing factors of the development of TS such as: loose subcutaneous tissue, older age of individuals undergoing deep brain stimulation (DBS) procedures, creation of too large pockets for IPG. Apart from these factors, the construction of IPG itself may predispose to the development of TS...
February 9, 2017: Neuromodulation: Journal of the International Neuromodulation Society
https://www.readbyqxmd.com/read/28184364/tibial-lengthening-using-a-fixator-assisted-lengthening-plate-a-new-technique
#14
Haci Bayram Tosun, Ismail Agir, Seyitali Gumustas, Sancar Serbest, Abuzer Uludag, Suat Celik
BACKGROUND: There are many techniques that are used for limb lengthening. Lengthening a limb over a plate is an alternative choice used in children or when using an intramedullary nail is difficult. OBJECTIVES: In this study, we presented a new technique for tibial lengthening using a monolateral external fixator over a lengthening plate. MATERIALS AND METHODS: For tibial lengthening, a monolateral external fixator was attached to the composite bone model medially...
November 2016: Trauma Monthly
https://www.readbyqxmd.com/read/28182595/treatment-of-advanced-kienb%C3%A3-ck-disease-with-a-vascularized-radial-bone-flap-wrapped-in-the-pronator-quadratus
#15
Sang Ki Lee, Kap Jung Kim, Hyuck Soo Shin, Won Sik Choy
PURPOSE: In the present study, we aimed to assess the radiologic and clinical outcomes after excision of the lunate, insertion of a vascularized radial bone flap wrapped in the pronator quadratus, and distraction with an external fixator of the joint, for the treatment of avascular necrosis of the lunate with carpal height collapse, fragmentation, and perilunar osteoarthritic changes. MATERIALS AND METHODS: From May 2006 to July 2014, a total of 25 patients (13 men and 12 women; mean age, 38...
March 2017: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/28166706/vascular-occlusion-following-application-of-subcutaneous-anterior-pelvic-fixation-infix-technique
#16
Adam Smith, I A Malek, James Lewis, K Mohanty
We report a case of bilateral external iliac artery compression after application of subcutaneous anterior pelvic fixation (INFIX) technique in a 51-year-old male with an unstable pelvic fracture sustained following a motor vehicle accident. This has not been previously reported in the literature. The management of this complication is discussed in detail, along with key precautions and technical steps to consider while utilizing the 'INFIX' technique for pelvic fractures.
January 2017: Journal of Orthopaedic Surgery
https://www.readbyqxmd.com/read/28164051/modified-boyd-s-dual-onlay-bone-graft-technique-for-15-years-old-neglected-nonunion-fracture-both-bone-forearm-with-severe-angular-deformity-case-report
#17
Dhurvas Ramlal Ramprasath, Vasudevan Thirunarayanan, Duraisamy Ezhilmaran
INTRODUCTION: Neglected case of nonunion of fracture both bones forearm with deformity is very difficult to manage. Treatment options are minimal. Identifying such a case in literature is also very rare. One such rare case is discussed here. CASE REPORT: Here, we present a case of a 65-year-old male patient, who was operated 15 years back for fracture both bones forearm, with 3.5 mm dynamic compression plate. Fracture went into nonunion and plate was broken. The patient presented to us 15 years later in August 2013 with nonunion, broken, and loosened implants and varus deformity of 90°...
September 2016: Journal of Orthopaedic Case Reports
https://www.readbyqxmd.com/read/28161511/phonemic-clicks-and-the-mapping-asymmetry-how-language-emerged-and-speech-developed
#18
REVIEW
Riny Huijbregts
Language must have existed before human populations became separated (all descendant populations have language) but language did not emerge until long after these population divergences occurred (behavioral modernity only showed then). Distinguishing capacity for language from externalized language resolves the apparent paradox. Speech emerged only after the capacity for language became fixated. This accords well with a fundamental property of human language. Rules mapping to meaning rely on structural properties only, while rules mapping to sound are (also) sensitive to linear order, reflecting properties of sensorimotor modalities...
February 1, 2017: Neuroscience and Biobehavioral Reviews
https://www.readbyqxmd.com/read/28151885/single-cortex-is-better-than-double-cortex-in-fibula-grafts-for-large-tibia-bone-defect-in-a-2-year-old-child-a-case-report-of-a-successful-surgery-and-discussion-of-bone-graft-choices
#19
Jianbin Li, Zhijun Pan, Shigui Yan, Xiang Zhao
BACKGROUND: Large bone defect in infant or small patients has been little reported and the management of such a patient is difficult. Considering the little knowledge of this area, we present this special case of a successful single-cortex fibula graft for the treatment of a large tibia bone defect in a 2-year-old patient to share our experience. CASE SUMMARY: A 2-year-old male patient presented to our hospital with history of leg pain for 4 months. According to his medical records, he was involved in a traffic accident and diagnosed with open tibia fracture...
February 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28150886/morphometry-of-the-human-clavicle-and-intramedullary-canal-a-3d-geometry-based-quantification
#20
Jazmine R Aira, Peter Simon, Sergio Gutiérrez, Brandon G Santoni, Mark A Frankle
Midshaft clavicle fractures are a very common occurrence. The current treatment of choice involves internal fixation with superior or anterior clavicle plating, however their clinical success and particularly patient satisfaction are decreasing. The implementation of intramedullary devices is on the rise, but data describing the intramedullary canal parameters are lacking. The aim of this study is to quantify the geometry of the clavicle and its intramedullary canal, and to evaluate the effect of gender and anatomical side...
February 2, 2017: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
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