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https://www.readbyqxmd.com/read/29782615/feasibility-study-applying-a-parametric-model-as-the-design-generator-for-3d-printed-orthosis-for-fracture-immobilization
#1
Jianyou Li, Hiroya Tanaka
Background: Applying 3D printing technology for the fabrication of custom-made orthoses provides significant advantages, including increased ventilation and lighter weights. Currently, the design of such orthoses is most often performed in the CAD environment, but creating the orthosis model is a time-consuming process that requires significant CAD experience. This skill gap limits clinicians from applying this technology in fracture treatment. The purpose of this study is to develop a parametric model as the design generator for 3D-printed orthoses for an inexperienced CAD user and to evaluate its feasibility and ease of use via a training and design exercise...
2018: 3D Print Med
https://www.readbyqxmd.com/read/29778980/the-influence-of-early-or-delayed-provision-of-ankle-foot-orthoses-on-pelvis-hip-and-knee-kinematics-in-patients-with-sub-acute-stroke-a-randomized-controlled-trial
#2
Corien D M Nikamp, Job van der Palen, Hermie J Hermens, Johan S Rietman, Jaap H Buurke
BACKGROUND: Compensatory pelvis, hip- and knee movements are reported after stroke to overcome insufficient foot-clearance. Ankle-foot orthoses (AFOs) are often used to improve foot-clearance, but the optimal timing of AFO-provision post-stroke is unknown. Early AFO-provision to prevent foot-drop might decrease the development of compensatory movements, but it is unknown whether timing of AFO-provision affects post-stroke kinematics. RESEARCH QUESTIONS: 1) To compare the effect of AFO-provision at two different points in time (early versus delayed) on frontal pelvis and hip, and sagittal hip and knee kinematics in patients with sub-acute stroke...
May 16, 2018: Gait & Posture
https://www.readbyqxmd.com/read/29776724/outcomes-of-splinting-in-pediatric-mallet-finger
#3
James S Lin, Julie Balch Samora
PURPOSE: Excessive flexion at the distal interphalangeal (DIP) joint disrupts the extensor mechanism, leading to mallet finger injuries. The goal of management is to restore active DIP joint extension. We sought to learn which variables (treatment technique, injury type, time to presentation, adherence to treatment) affect clinical outcomes of pediatric mallet finger injuries. METHODS: A retrospective review was performed of patients who presented with mallet finger injuries during 2013 to 2017 at a large pediatric hospital...
May 15, 2018: Journal of Hand Surgery
https://www.readbyqxmd.com/read/29775129/health-related-quality-of-life-and-orthosis-use-in-a-swedish-population-with-arthrogryposis
#4
Marie Eriksson, Leena Jylli, Li Villard, Anna-Karin Kroksmark, Åsa Bartonek
BACKGROUND: Joint contractures are the main characteristics for children with arthrogryposis multiplex congenita. Orthoses are often used to enable or facilitate walking. OBJECTIVES: To describe health-related quality of life in children with arthrogryposis multiplex congenita and satisfaction with orthoses in those using orthoses. STUDY DESIGN: Cross-sectional study. METHODS: A total of 33 children with arthrogryposis multiplex congenita participated in the study...
May 1, 2018: Prosthetics and Orthotics International
https://www.readbyqxmd.com/read/29759027/upper-limb-congenital-muscular-hypertrophy-and-aberrant-muscle-syndrome-in-children
#5
Emmanuel Dahan, Camilo Chaves, Manon Bachy, Frank Fitoussi
Congenital muscle hypertrophy of the upper limb is a very rare condition with unknown aetiology. This descriptive observational and retrospective series included eight children followed by a multidisciplinary team from 2005 to 2017. The diagnosis was based on a cluster of clinical and radiological characteristics after elimination of differential diagnoses. Patients were categorized according to: anomalies of the wrist, anomalies of long fingers of intrinsic or extrinsic origin; and anomalies of the thumb with or without first web space contracture...
January 1, 2018: Journal of Hand Surgery, European Volume
https://www.readbyqxmd.com/read/29753998/use-of-high-speed-stereo-radiography-to-assess-the-foot-orthoses-effectiveness-in-controlling-midfoot-posture-during-walking-a-pilot-study
#6
Erin M Mannen, Stuart J Currie, Elizabeth C Bachman, Amira Otmane, Bradley S Davidson, Kevin B Shelburne, Thomas G McPoil
BACKGROUND: The intent of this pilot study was to determine the feasibility of using high-speed stereo radiography (HSSR) to assess the effectiveness of footwear and foot orthoses in controlling the change in the position of the midfoot during walking in individuals with a flexible pes planus foot type. METHODS: Four individuals (1 female; 3 male) with a mean age of 25 years (range 22-29) and a bilateral flexible pes planus foot type participated in the study. The HSSR system was used to measure 3-dimensional changes in the longitudinal arch angle (LAA) with each participant walking barefoot, shoe only and shoes with orthoses...
January 31, 2018: Foot
https://www.readbyqxmd.com/read/29753125/adaptation-of-kinematic-synergy-and-postural-control-to-mechanical-ankle-constraint-on-an-unsteady-stance-surface
#7
Yi-Ying Tsai, Gwo-Ching Chang, Ing-Shiou Hwang
Joint constraint interferes with the coordinative structure in joint movements used to optimize postural stability. This study aimed to investigate changes in postural synergy when the ankle joints were bilaterally braced during a stabilometer stance. Twenty-four young adults stood on a stabilometer plate while wearing a pair of ankle-foot orthoses, which were either unlocked or locked to restrict ankle motion (the ankle constraint (AC) and non-constraint (NC) conditions). Although ankle constraint did not significantly affect the dynamics of the stabilometer movements, the size and regularity of the first principal component (PC1), which explained more than 80% of the variance of joint movements in the lower limb, were increased...
May 9, 2018: Human Movement Science
https://www.readbyqxmd.com/read/29747079/mechanical-effects-of-medial-and-lateral-wedged-orthoses-during-running
#8
Jonathan Sinclair
OBJECTIVE: The aim of the current investigation was to examine the effects of orthoses with 5° medial and lateral wedges on knee joint kinetics during the stance phase of running. DESIGN: Repeated measures. SETTING: Laboratory. PARTICIPANTS: Twelve recreational runners. OUTCOME MEASUREMENTS: Twelve male participants ran over a force platform at 4.0 m/s in three different conditions (medial orthotic, lateral orthotic and no-orthotic)...
May 3, 2018: Physical Therapy in Sport
https://www.readbyqxmd.com/read/29729467/the-efficacy-of-thoracolumbar-bracing-on-spinal-immobilization-a-precise-assessment-of-gross-intersegmental-and-segmental-spinal-motion-restriction-by-a-3d-kinematic-system
#9
Gernot Lang, Anja Hirschmüller, Stefanie Patermann, Patric Eichelberger, Peter Strohm, Heiner Baur, Norbert P Südkamp, Georg W Herget
BACKGROUND: Various diseases of the spine are treated by immobilization via orthoses, although detailed evidence on the efficiency of orthotic bracing remains elusive. The present study sought to investigate the impact of three different orthoses on spinal immobilization utilizing three dimensional (3D) kinematic measurements. METHODS: Twelve healthy volunteers performed different motion tasks such as trunk flexion/extension and bilateral trunk bending, respectively...
May 2, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29724537/confirmation-bias-affects-user-perception-of-knee-braces
#10
Brittany Balsamo, Mark D Geil, Rebecca Ellis, Jianhua Wu
Technological advances in orthopedic devices such as prostheses and orthoses are intended to improve function but may also result in increased complexity and expense. Consequently, accurate determination of effectiveness is important. When devices with advanced technology are used, it is possible that confirmation bias - the tendency for a user to actually experience what he or she expects to experience - will influence outcomes. This study assessed confirmation bias in 18 healthy young adults walking in knee braces...
April 25, 2018: Journal of Biomechanics
https://www.readbyqxmd.com/read/29715361/assessment-of-mechanical-characteristics-of-ankle-foot-orthoses
#11
Amanda Wach, Linda McGrady, Mei Wang, Barbara Silver-Thorn
Recent designs of ankle-foot orthoses (AFOs) have been influenced by the increasing demand for higher function from active individuals. The biomechanical function of the individual and device is dependent upon the underlying mechanical characteristics of the AFO. Prior mechanical testing of AFOs has primarily focused on rotational stiffness to provide insight into expected functional outcomes; mechanical characteristics pertaining to energy storage and release have not yet been investigated. A pseudostatic bench testing method is introduced to characterize compressive stiffness, device deflection, and motion of solid-ankle, anterior floor reaction, posterior leaf spring, and the intrepid dynamic exoskeletal orthosis (IDEO) AFOs...
July 1, 2018: Journal of Biomechanical Engineering
https://www.readbyqxmd.com/read/29714066/effect-of-ankle-foot-orthoses-on-gait-balance-and-gross-motor-function-in-children-with-cerebral-palsy-a-systematic-review-and-meta-analysis
#12
Mael Lintanf, Jean-Sébastien Bourseul, Laetitia Houx, Mathieu Lempereur, Sylvain Brochard, Christelle Pons
OBJECTIVE: To determine the effects of ankle-foot orthoses (AFOs) on gait, balance, gross motor function and activities of daily living in children with cerebral palsy. DATA SOURCES: Five databases were searched (Pubmed, Psycinfo, Web of Science, Academic Search Premier and Cochrane Library) before January 2018. REVIEW METHODS: Studies of the effect of AFOs on gait, balance, gross motor function and activities of daily living in children with cerebral palsy were included...
April 1, 2018: Clinical Rehabilitation
https://www.readbyqxmd.com/read/29706698/the-prevalence-of-the-flat-foot-condition-and-insole-prescription-in-people-with-down-s-syndrome-a-retrospective-population-based-study
#13
Yoshihide Kanai, Hirotaka Mutsuzaki, Tomohiro Nakayama, Arito Yozu, Nobuaki Iwasaki
[Purpose] The general approach for flat foot (FF) treatment in people with Down's syndrome (DS) is the use of insoles. However, the appropriate timing of the first insole prescription remains unclear. An aim of this present research was to investigate the status of prevalence of FF and orthosis prescription in the DS population. [Subjects and Methods] Two hundred fifteen subjects with DS who were seen at our hospital were retrospectively investigated. Investigated parameters were: prevalence of FF and other foot diseases, ratio and timing of orthopaedic consultation, ratio and timing of orthoses prescription, and mean age at the time of orthosis prescription...
April 2018: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/29706200/a-client-centered-approach-for-thumb-carpometacarpal-joint-osteoarthritis-pain-two-case-studies
#14
Barbara Shankland, Bernadette Nedelec
DESIGN: Case study. INTRODUCTION: Hand therapists are often called upon to provide treatment for thumb carpometacarpal joint osteoarthritis. PURPOSE: These 2 case studies present a client-centered approach in the selection of orthoses and joint protection strategies for patients with thumb carpometacarpal joint osteoarthritis. At baseline, the participants presented with pain, decreased active range of motion, decreased pinch strength, and limitations in activity and participation...
April 2018: Journal of Hand Therapy: Official Journal of the American Society of Hand Therapists
https://www.readbyqxmd.com/read/29702012/physical-therapists-use-of-evaluation-measures-to-inform-the-prescription-of-ankle-foot-orthoses-for-children-with-cerebral-palsy
#15
Kyra J Kane, Joel L Lanovaz, Kristin E Musselman
AIMS: To examine how physical therapists (PTs) use evaluation measures to guide prescription and re-assessment of ankle-foot orthoses (AFOs) for children with CP. METHODS: PTs in Canada who work with children with CP were invited to complete an online survey. Survey questions examined PT evaluation and interpretation of findings at initial AFO prescription and re-assessment. Closed-ended responses were analyzed using descriptive statistics, and a conventional content analysis examined responses to open-ended questions...
April 27, 2018: Physical & Occupational Therapy in Pediatrics
https://www.readbyqxmd.com/read/29696991/pressure-distribution-in-the-ankle-and-subtalar-joint-with-routine-and-oversized-foot-orthoses
#16
Patrick Williamson, Aron Lechtig, Philip Hanna, Stephen Okajima, Peter Biggane, Michael Nasr, David Zurakowski, Naven Duggal, Ara Nazarian
BACKGROUND: Foot orthoses are used to treat many disorders that affect the lower limb. These assistive devices have the potential to alter the forces, load distribution, and orientation within various joints in the foot and ankle. This study attempts to quantify the effects of orthoses on the intra-articular force distribution of the ankle and subtalar joint using a cadaveric testing jig to simulate weight bearing. METHODS: Five lower-limb cadaveric specimens were placed on a custom jig, where a 334-N (75-lb) load was applied at the femoral head, and the foot was supported against a plate to simulate double-leg stance...
April 1, 2018: Foot & Ankle International
https://www.readbyqxmd.com/read/29691786/mechanical-and-clinical-evaluation-of-a-shape-memory-alloy-and-conventional-struts-in-a-flexible-scoliotic-brace
#17
Wing-Yu Chan, Joanne Yip, Kit-Lun Yick, Sun-Pui Ng, Lu Lu, Kenneth Man-Chee Cheung, Kenny Yat-Hong Kwan, Jason Pui-Yin Cheung, Kelvin Wai-Kwok Yeung, Chi-Yung Tse
Smart materials have attracted considerable attention in the medical field. In particular, shape memory alloys (SMAs) are most commonly utilized for their superelasticity (SE) in orthopaedic treatment. In this study, the resin struts of a flexible brace for adolescent idiopathic scoliosis (AIS) are replaced with different conventional materials and an SMA. The corrective mechanism mainly depends on the compressive force applied by the brace at the desired location. Therefore, the mechanical properties of the materials used and the interface pressure are both critical factors that influence the treatment effectiveness...
April 24, 2018: Annals of Biomedical Engineering
https://www.readbyqxmd.com/read/29684886/the-effects-of-three-quarter-and-full-length-foot-orthoses-on-knee-mechanics-in-healthy-subjects-and-patellofemoral-pain-patients-when-walking-and-descending-stairs
#18
J Burston, J Richards, J Selfe
BACKGROUND: An increased load of the patellofemoral joint is often attributed to foot function in patients with patellofemoral pain. Foot orthoses are commonly prescribed for this condition; however the mechanisms by which they work are poorly understood. The aim of this study was to investigate the kinematics and kinetics of the knee between patellofemoral pain patients and a group of healthy subjects when using a standardised foot orthosis prescription during walking and step descent...
April 17, 2018: Gait & Posture
https://www.readbyqxmd.com/read/29682429/when-why-and-how-foot-orthoses-fos-should-be-prescribed-for-children-with-flexible-pes-planus-a-delphi-survey-of-podiatrists
#19
Sindhrani Dars, Hayley Uden, Saravana Kumar, Helen A Banwell
Background: Flexible pes planus (flat feet) in children is a common reason parents and caregivers seek health professionals consult and a frequent reason podiatrists prescribe foot orthoses. Yet no universal agreement exists on the diagnosis of this condition, or when and how foot orthoses should be prescribed. The aim of this study was to garner consensus and agreement among podiatrists on the use of FOs for paediatric flexible pes planus. Methods: A three round Delphi consensus survey was undertaken with 15 podiatry experts from Australia, New Zealand and the United Kingdom...
2018: PeerJ
https://www.readbyqxmd.com/read/29680682/effect-of-head-orthoses-on-skull-deformities-in-positional-plagiocephaly-evaluation-of-a-3-dimensional-approach
#20
Klaus W W Dörhage, Jörg Wiltfang, Vera von Grabe, Annalena Sonntag, Stephan T Becker, Benedicta E Beck-Broichsitter
PURPOSE: The positional non-synostotic plagiocephaly represents a cranial asymmetry affecting all 3 dimensions. The aim of this study was to evaluate volumetric indices to assess the efficiency in improving non-synostotic cranial asymmetries in treatment with head orthoses. MATERIAL AND METHODS: A total of 96 infants were included in this observational retrospective study. The cohort was further divided into subgroups according to age of helmet supply (younger/older than 7...
March 29, 2018: Journal of Cranio-maxillo-facial Surgery
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