Pre-operative sensor-based gait parameters predict functional outcome after total knee arthroplasty
Osteoarthritis (OA) is a progressive disease mainly occurring in the latter half of life and is characterized by the wear, softening and thinning of articular cartilage [1]. Symptomatic knee OA exhibits a prevalence of 12% among US adults and symptoms not only include pain, but also severe functional limitations, including gait dysfunction and a reduction of other activities of daily living [2]. With 1.6% of all US adults undergoing knee replacement surgery, total knee arthroplasty (TKA) is the most common invasive intervention for end-stage knee OA patients [3]. (Source: Gait and Posture)
Source: Gait and Posture - August 23, 2018 Category: Orthopaedics Authors: Felix Kluge, Julius Hannink, Cristian Pasluosta, Jochen Klucken, Heiko Ga ßner, Kolja Gelse, Bjoern M. Eskofier, Sebastian Krinner Source Type: research
Analysis of the performance of 17 algorithms from a systematic review: influence of sensor position, analysed variable and computational approach in gait timing estimation from IMU measurements
Gait analysis is extensively used for the quantitative assessment of motor function in basic research as well as clinical and sport applications, and gait timing is considered of primary importance for the characterization of gait alterations. The quantification of gait temporal parameters (GTP) (i.e. step and stance times) requires, first of all, to identify gait events (GE) (i.e. heel strike, HS, and toe off, TO). GTP can be estimated from measurements obtained using various sensing technologies, such as foot-switches, inertial sensors, pressure mats, or stereo-photogrammetric systems [1]. (Source: Gait and Posture)
Source: Gait and Posture - August 23, 2018 Category: Orthopaedics Authors: Giulia Pacini Panebianco, Maria Cristina Bisi, Rita Stagni, Silvia Fantozzi Tags: Full length article Source Type: research
Variations of handheld loads increase the range of motion of the lumbar spine without compromising local dynamic stability during walking
Walking is often recommended as a management strategy for certain populations of low back pain (LBP) patients, stemming from evidence that exercise can help to manage chronic pain [1,2], and that walking in particular elicits beneficial movement of the spine [3]. Low levels of cyclic loading and muscle activation, such as those experienced by the spine when walking, may have the potential to increase nutrient and molecular exchange through the intervertebral disc (IVD) [4]. Additionally, movement generated during walking may have the potential to mobilize the lower spine and pelvis in patients who ’ve adopted a maladapti...
Source: Gait and Posture - August 23, 2018 Category: Orthopaedics Authors: Kelsey Y. Gsell, Shawn M. Beaudette, Ivan M. Capcap, Stephen H.M. Brown Tags: Full length article Source Type: research
Validation of an Accelerometer for Measurement of Activity in Frail Older People
Physical activity is essential for independence and wellbeing in older people in all settings and at all levels of functional capacity [1 –3]. Activity is even more important for frail older people as their absolute risk of functional decline from inactivity is highest [4,5]. Furthermore, sedentary time has been linked to health outcomes [6]. Self-report assessment of activity, the commonest assessment measure, can be limited by cog nitive problems and recall bias when used in older people [7]. Therefore, objective measures of activity are needed to assess the amount and type of activity for the purposes of: self-managem...
Source: Gait and Posture - August 23, 2018 Category: Orthopaedics Authors: Nethra Ganesh Chigateri, Ngaire Kerse, Laurian Wheeler, Bruce MacDonald, Jochen Klenk Tags: Full length article Source Type: research
Difference scores between single-task and dual-task gait measures are better than clinical measures for detection of fall-risk in community-dwelling older adults
Falls are frequent occurrences in community-dwelling older adults, with up to 30% of Canadians over the age of 65 experiencing one or more falls each year [1]. Falls are the leading cause of fatal and nonfatal injuries among adults aged ≥65 years [2]. These debilitating and potentially life-threatening injuries have long term consequences to physical, psychological, and economic well-being [3]. Early and accurate identification of at-risk individuals is essential in providing effective interventions to decrease the likelihood of falling and subsequent injury [4]. (Source: Gait and Posture)
Source: Gait and Posture - August 22, 2018 Category: Orthopaedics Authors: D. Commandeur, M.D. Klimstra, S. MacDonald, K. Inouye, M. Cox, D. Chan, S.R. Hundza Tags: Full length article Source Type: research
The functional, spatio-temporal and satisfaction outcomes of transtibial amputees with a hydrocast socket following an extended usage period in an under-resourced environment
Conventional patella tendon bearing (PTB) transtibial prosthetic sockets are widely-used throughout the developing world, however their manufacture is highly dependent on the skill and experience of the prosthetist. It is advocated that hydrocasting techniques may lead to improved socket shape consistency compared to the hand-cast PTB [1,2]. Improved fit consistency may increase quality control, reduce production time and lower production costs [3]. Although interface pressures of hydrocast sockets have been investigated in a number of studies [4 –8], there is currently a paucity of clinical outcome data to support the u...
Source: Gait and Posture - August 22, 2018 Category: Orthopaedics Authors: Sheridan Laing, Peter V. Lee, Jim Lavranos, Noel Lythgo Tags: Full length article Source Type: research
Compensations in lower limb joint work during walking in response to unilateral calf muscle weakness
Dutch trial register number: NTR 5170 (Source: Gait and Posture)
Source: Gait and Posture - August 20, 2018 Category: Orthopaedics Authors: Niels F.J. Waterval, Merel-Anne Brehm, Hilde E. Ploeger, Frans Nollet, Jaap Harlaar Tags: Full length article Source Type: research
Test-retest reliability of an instrumented electronic walkway system (GAITRite) for the measurement of spatio-temporal gait parameters in young patients with Friedreich ’s ataxia
Friedreich ’s ataxia (FRDA) is the most common neurodegenerative disease with autosomal recessive transmission. It affects approximately 1/30 000 to 1/50 000 individuals [1,2]. First symptoms of FRDA commonly appear around puberty and include: progressive ataxia, loss of proprioception, areflexia, weakness a nd spasticity. Secondary orthopaedic deformities such as scoliosis and pes cavus can develop over time [3,4]. All these symptoms affect the quality of life, since the ability to walk and maintain an upright posture tend to decline with time. (Source: Gait and Posture)
Source: Gait and Posture - August 20, 2018 Category: Orthopaedics Authors: Bastien Roche, Anne-Laure Simon, Sophie Guilmin-Cr épon, Priscilla Boizeau, Béatrice Andriss, Corinne Alberti, Ana Presedo, Brice Ilharreborde, Isabelle Husson Tags: Full length article Source Type: research
Contributors to knee loading deficits during gait in individuals following anterior cruciate ligament reconstruction
Clinically, restoration of gait mechanics following anterior cruciate ligament reconstruction (ACLr) is expected by 2-3 months post-surgery [1,2]. However, despite concentrated efforts to normalize gait, biomechanical studies consistently report the presence of altered mechanics in the surgical limb. Decreased knee flexion range of motion (ROM) and extensor moments during loading response of gait are observed throughout rehabilitation [3 –7]. Moreover, despite improvements over time, between limb asymmetries in knee extensor moment continue to exceed the minimal clinically important difference 2 years after surgery [8]. ...
Source: Gait and Posture - August 20, 2018 Category: Orthopaedics Authors: Paige E. Lin, Susan M. Sigward Tags: Full length article Source Type: research
Is in-toing gait physiological in children? - Results of a large cohort study in 5910 healthy (pre-) school children
The foot progression angle (FPA), which is measured from the longitudinal axis of the foot to the forward line of progression [1], describes the rotational profile of the human foot while walking or running [2]. During the development of children ’s lower extremities, extreme FPAs displaying in-toeing (internal rotation of the foot, IR) or out-toeing (external rotation of the foot, ER) while walking may be present. These FPAs vary as young children’s lower extremities tend to internally rotate, but spontaneous normalize to a neutral or e xternal rotation position during growth [3–6]. (Source: Gait and Posture)
Source: Gait and Posture - August 20, 2018 Category: Orthopaedics Authors: Ronald Verch, Anja Hirschm üller, Juliane Müller, Heiner Baur, Frank Mayer, Steffen Müller Tags: Full length article Source Type: research
Motion Analysis in the Axial Plane after Realignment Surgery for Adolescent Idiopathic Scoliosis
Spinal realignment and fusion are the mainstays of treatment for severe adolescent idiopathic scoliosis (AIS). Operative goals include limiting the number of vertebral levels fused while achieving stabilization of the deformity and maintaining spinal balance in the coronal and sagittal planes. It is typical for scoliosis fusions to span 8-10 intervertebral levels when using the posterior approach [1]. Thus, it is logical that these long thoraco-lumbar constructs would result in functional changes in the postoperative AIS patient. (Source: Gait and Posture)
Source: Gait and Posture - August 19, 2018 Category: Orthopaedics Authors: Ashish Patel, Robert Pivec, Neil V. Shah, Dante M. Leven, Adam Margalit, Louis M. Day, Ellen M. Godwin, Virginie Lafage, Nicholas H. Post, Hiroyuki Yoshihara, Bassel G. Diebo, Carl B. Paulino Source Type: research
The effect of the Majestro-Frost procedure on internal hip rotation during gait in patients with cerebral palsy
Intoeing is a frequent gait disturbance in patients with spastic cerebral palsy (CP) and internal hip rotation (IHR) is the major cause of this condition [1,2]. Factors leading to IHR in patients with CP may be dynamic or static. O ’Sullivan et al. [2] considered the dynamic IHR in CP a multifactorial problem, with unpredictable results after soft-tissue procedures. In 2016, Jung et al. mentioned that IHR could be improved after soft-tissue procedures in independently community-ambulant patients with spastic diplegic CP [3]. (Source: Gait and Posture)
Source: Gait and Posture - August 18, 2018 Category: Orthopaedics Authors: Mauro C ésar de Morais Filho, Francesco Camara Blumetti, Cátia Miyuki Kawamura, Cássio Luís Ferreira, José Augusto Fernandes Lopes, Marcelo Hideki Fujino, Daniella Lins Neves Tags: Full length article Source Type: research
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Source: Gait and Posture - August 17, 2018 Category: Orthopaedics Source Type: research
The effect of center of pressure alteration on the ground reaction force during gait: a statistical model
During gait, the foot is the point of physical contact between the environment and the body. As a result, the force acting on the foot, namely the three-dimensional ground reaction force (GRF), can simultaneously impact and be impacted by pathological disorders. Disorders such as degenerative diseases of the joints (e.g., osteoarthritis), injury, or foot problems (e.g., foot ulcers secondary to diabetes mellitus, plantar fasciitis) are presented with a GRF that may deviate substantially from the normal [1,2]. (Source: Gait and Posture)
Source: Gait and Posture - August 17, 2018 Category: Orthopaedics Authors: Hadar Shaulian, Deborah Solomonow-Avnon, Amir Herman, Nimrod Rozen, Amir Haim, Alon Wolf Source Type: research
Immediate effects of wearing knee length socks differing in compression level on postural regulation in community-dwelling, healthy, elderly men and women
Postural regulation and stability of balance are affected by types of standing surfaces and somatosensory system function of an individual [1]. Standing on unstable surfaces, like foam surfaces, have revealed the important role of somatosensory information in postural regulation and balance [1,2]. Studies have suggested that postural sway increases for balance regulation, especially when individuals are standing on a foam surface [1,3]. Somatosensory function is important to study since neurodegeneration can result in age-related declines in postural regulation due to reduction in cognitive and sensory system capacities [4...
Source: Gait and Posture - August 16, 2018 Category: Orthopaedics Authors: Mei Teng Woo, Keith Davids, Jarmo Liukkonen, Jia Yi Chow, Timo Jaakkola Source Type: research
