keyword
MENU ▼
Read by QxMD icon Read
search

hip biomechanics

keyword
https://www.readbyqxmd.com/read/29033502/biomechanical-model-based-evaluation-of-total-hip-arthroplasty-therapy-outcome
#1
Jörg Eschweiler, Julia Hawlitzky, Valentin Quack, Markus Tingart, Björn Rath
OBJECTIVE: Total-hip-arthroplasties are performed to treat patients with osteoarthritis. Surgical planning is usually based on specific radiographs. These information could also be used as data for biomechanical modelling. METHODS: Models are rarely used during clinical practice. Our aim was to analyze model-based the pre- and postoperatively hip-biomechanic. Pre- and postoperative X-rays of 30 patients were examined by using 4 biomechanical-models. RESULTS: The received results showed variations e...
December 2017: Journal of Orthopaedics
https://www.readbyqxmd.com/read/29033381/the-effect-of-once-yearly-zoledronic-acid-on-hip-structural-and-biomechanical-properties-derived-using-computed-tomography-ct-in-japanese-women-with-osteoporosis
#2
Masako Ito, Teruki Sone, Masataka Shiraki, Satoshi Tanaka, Chika Irie, Yuri Ota, Toshitaka Nakamura
The effects of zoledronic acid on hip structural and biomechanical properties were evaluated in Japanese patients with osteoporosis by computed tomography (CT). The subjects included in this study were a subset of female subjects (zoledronic acid group, 49 subjects; placebo group, 53 subjects) in the phase 3 trial (ZONE study) who were available for multi-detector row CT (MDCT) scanning. Eligible subjects were those diagnosed with primary osteoporosis based on the Diagnostic Criteria for Primary Osteoporosis (2000) by the Japanese Society for Bone and Mineral Research and who had between one and four fractured vertebrae located between the fourth thoracic vertebra and the fourth lumbar vertebra...
October 12, 2017: Bone
https://www.readbyqxmd.com/read/29022123/assessment-of-a-closed-wash-system-developed-for-processing-living-donor-femoral-heads
#3
M J Eagle, J Man, P Rooney, T A McQuillan, G Galea, J N Kearney
NHS Blood and Transplant Tissue and Eye Services (TES) and Scottish National Blood Transfusion Services Tissues and Cells Directorate (TCD) currently bank whole, frozen femoral head bone from living donors who are undergoing primary hip replacement surgery. When required, the bone is issued to a surgeon still frozen on dry ice (- 79 °C). Consequently, the femoral head bone is not processed, is not sterilised and at the time of issue, it contains donor blood, bone marrow and associated cells. We have previously shown that, cut, shaped and washed bone from deceased donors can be processed to remove up to 99...
October 11, 2017: Cell and Tissue Banking
https://www.readbyqxmd.com/read/29016393/biomechanical-implications-of-training-volume-and-intensity-in-aging-runners
#4
Max R Paquette, Paul DeVita, D S Blaise Williams
Running speed is slower in middle-aged compared to younger runners due to reduced ankle but not hip and knee kinetic output. Running-specific training helps attenuate age-related declines in measures of endurance, muscle strength and gait speed. Considering the adaptability of the human body in response to imposed stresses, maintaining training volume and intensity may play a role in modifying running biomechanics in middle-aged runners. PURPOSE: To compare running biomechanics between young and middle-aged runners when controlling for the confounding effects of training volume and intensity...
October 9, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28987873/hip-joint-biomechanics-in-those-with-and-without-post-traumatic-knee-osteoarthritis-after-anterior-cruciate-ligament-injury
#5
E Wellsandt, J A Zeni, M J Axe, L Snyder-Mackler
BACKGROUND: Anterior cruciate ligament injury results in altered kinematics and kinetics in the knee and hip joints that persist despite surgical reconstruction and rehabilitation. Abnormal movement patterns and a history of osteoarthritis are risk factors for articular cartilage degeneration in additional joints. The purpose of this study was to determine if hip joint biomechanics early after anterior cruciate ligament injury and reconstruction differ between patients with and without post-traumatic knee osteoarthritis 5years after reconstruction...
October 2, 2017: Clinical Biomechanics
https://www.readbyqxmd.com/read/28985577/characteristics-of-clinical-measurements-between-biomechanical-responders-and-non-responders-to-a-shoe-designed-for-knee-osteoarthritis
#6
Yongwook Kim, Jim Richards, Roy H Lidtke, Renato Trede
PURPOSE: The purpose of this study was to investigate the characteristics of biomechanical and clinical measurements in relation to the knee adduction moment when wearing a standard shoe and a shoe design for individuals with knee osteoarthritis (Flex-OA). METHODS: Kinematic and kinetic data were collected from thirty-two healthy individuals (64 knees) using a ten camera motion analysis system and four force plates. Subjects performed 5 walking trials under the two conditions and the magnitude of individuals' biomechanical responses where explored in relation to the clinical assessment of the Foot Posture Index, hip rotation range, strength of hip rotators, and active ankle-foot motion, all of which have been described as possible compensation mechanisms in knee osteoarthritis...
September 29, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28974376/prior-lumbar-spinal-fusion-is-associated-with-an-increased-risk-of-dislocation-and-revision-in-total-hip-arthroplasty-a-meta-analysis
#7
Vincent V G An, Kevin Phan, Brahman S Sivakumar, Ralph J Mobbs, Warwick J Bruce
BACKGROUND: The biomechanical relationship between the lumbar spine and the hip is well-documented. It follows that fusing the lumbar spine would have implications on the outcomes of total hip arthroplasty (THA). This study aimed to determine the effect of preexisting lumbar spinal fusion surgery on the outcomes of THA by synthesizing the available evidence via systematic review and meta-analysis. METHODS: A systematic review with meta-analysis was performed in accordance to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines...
September 9, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28970988/arthroscopic-focal-subspinal-decompression-and-management-of-pincer-type-femoroacetabular-impingement
#8
Renato Locks, Hajime Utsunomiya, Ioanna Bolia, Sandeep Mannava, Jorge Chahla, Marc J Philippon
Femoroacetabular impingement syndrome is a common hip pathology significantly affecting not only the intra- and extra-articular structures but also the biomechanical function of the joint. Cam and pincer bony lesions have been extensively studied. However, during recent years, other types of extra-articular impingement between the pelvic and femoral bone have been investigated. When a prominent or morphologically abnormal anterior-inferior iliac spine (AIIS) impinges repetitively on the femoral side during motion, the subspinal acetabular region becomes prominent and extends toward the intra-articular part of the joint...
August 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/28966391/erratum-the-history-of-biomechanics-in-total-hip-arthroplasty
#9
(no author information available yet)
[This corrects the article on p. 359 in vol. 51, PMID: 28790464.].
September 2017: Indian Journal of Orthopaedics
https://www.readbyqxmd.com/read/28959697/acl-injury-prevention-training-results-in-modification-of-hip-and-knee-mechanics-during-a-drop-landing-task
#10
Christine D Pollard, Susan M Sigward, Christopher M Powers
BACKGROUND: Injury prevention training has been shown to be effective in reducing the incidence of noncontact anterior cruciate ligament (ACL) injury; however, the underlying reason for the success of these training programs is unclear. PURPOSE: To investigate whether an ACL injury prevention program that has been shown to reduce the incidence of ACL injury alters sagittal plane hip and knee biomechanics during a drop-landing task. STUDY DESIGN: Descriptive laboratory study...
September 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28955682/acetabular-defect-reconstruction-with-trabecular-metal-augments-study-with-minimum-one-year-follow-up
#11
Chirayu Dwivedi, Sandeep Gokhale, Hyun Gon Khim, Jeon Keon Oh, Won Yong Shon
PURPOSE: High rates of mechanical failure have been reported in type III acetabular defects. Recently porous trabecular metal augments have been introduced with, excellent biomechanical characteristics and biocompatibility, allowing early stability and greater bone ingrowth. The aim of the study was to assess the short term clinical and radiological outcome of the trabecular metal augments. MATERIALS AND METHODS: We performed, 22 revision total hip arthroplasties (THA) and 6 primary THA (total 28) using trabecular metal augments to reconstruct acetabular defect between 2011 to 2015...
September 2017: Hip & Pelvis
https://www.readbyqxmd.com/read/28953186/a-novel-mobility-device-to-improve-walking-for-a-child-with-cerebral-palsy
#12
Andrea Fergus
PURPOSE: To describe the use and outcomes associated with the Upsee in conjunction with Kinesiotape for a child with cerebral palsy. DESCRIPTIONS: The Upsee and Kinesiotaping were implemented for 24 weeks with a 31-month-old child with cerebral palsy, Gross Motor Function Classification System level III. OUTCOMES: She progressed from walking with maximal assistance and extensive gait deviations to walking with supervision with a walker on level surfaces with improved gait...
October 2017: Pediatric Physical Therapy
https://www.readbyqxmd.com/read/28952871/female-athletes-with-varying-levels-of-vertical-stiffness-display-kinematic-and-kinetic-differences-during-single-leg-hopping
#13
Justin P Waxman, Kevin R Ford, Anh-Dung Nguyen, Jeffrey B Taylor
Vertical stiffness may contribute to lower-extremity injury risk; however, it is unknown whether athletes with different stiffness levels display differences in biomechanics. This study compared differences in biomechanics between female athletes (n=99) with varying stiffness levels during a repetitive, single-leg, vertical hopping task. Vertical stiffness was calculated as the ratio of peak vertical ground-reaction force to maximum center-of-mass displacement. Tertiles were established using stiffness values, and separate one-way ANOVAs were used to evaluate between-group differences...
September 27, 2017: Journal of Applied Biomechanics
https://www.readbyqxmd.com/read/28950859/protocol-for-a-multi-centre-randomised-controlled-trial-comparing-arthroscopic-hip-surgery-to-physiotherapy-led-care-for-femoroacetabular-impingement-fai-the-australian-fashion-trial
#14
Nicholas J Murphy, Jillian Eyles, Kim L Bennell, Megan Bohensky, Alexander Burns, Fraser M Callaghan, Edward Dickenson, Camdon Fary, Stuart M Grieve, Damian R Griffin, Michelle Hall, Rachel Hobson, Young Jo Kim, James M Linklater, David G Lloyd, Robert Molnar, Rachel L O'Connell, John O'Donnell, Michael O'Sullivan, Sunny Randhawa, Stephan Reichenbach, David J Saxby, Parminder Singh, Libby Spiers, Phong Tran, Tim V Wrigley, David J Hunter
BACKGROUND: Femoroacetabular impingement syndrome (FAI), a hip disorder affecting active young adults, is believed to be a leading cause of hip osteoarthritis (OA). Current management approaches for FAI include arthroscopic hip surgery and physiotherapy-led non-surgical care; however, there is a paucity of clinical trial evidence comparing these approaches. In particular, it is unknown whether these management approaches modify the future risk of developing hip OA. The primary objective of this randomised controlled trial is to determine if participants with FAI who undergo hip arthroscopy have greater improvements in hip cartilage health, as demonstrated by changes in delayed gadolinium-enhanced magnetic resonance imaging (MRI) of cartilage (dGEMRIC) index between baseline and 12 months, compared to those who undergo physiotherapy-led non-surgical management...
September 26, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28946826/when-to-biomechanically-examine-a-lower-limb-amputee-a-systematic-review-of-accommodation-times
#15
Andrea B Wanamaker, Rebecca R Andridge, Ajit Mw Chaudhari
BACKGROUND: Hundreds of investigations examining biomechanical outcomes of various prostheses have been completed, but one question remains unanswered: how much time should an amputee be given to accommodate to a new prosthesis prior to biomechanical testing? OBJECTIVE: To examine the literature for accommodation time given during biomechanical investigations to determine whether consensus exists. STUDY DESIGN: Systematic review. METHODS: A systematic search was completed on 7 January 2016 using PubMed and Scopus...
October 2017: Prosthetics and Orthotics International
https://www.readbyqxmd.com/read/28942422/the-interaction-of-hip-and-foot-biomechanics-in-the-presentation-and-management-of-patellofemoral-pain
#16
Simon Lack
No abstract text is available yet for this article.
September 23, 2017: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/28939031/the-current-knowledge-on-spinopelvic-mobility
#17
REVIEW
Zachary C Lum, John G Coury, Jonathan L Cohen, Lawrence D Dorr
Recent studies may suggest that our conventional knowledge of risk factors for dislocation may need rethinking. Previous studies have demonstrated a large majority of total hip arthroplasty instability with acetabular cups implanted in safe zones. Recently discovered spinopelvic motion is a coordinated biomechanical relationship among acetabular anteversion, pelvic tilt, and lumbar lordosis. Classification includes normal, hypermobile, stiff, stuck standing, stuck sitting, and fused. Normal spinopelvic motion from standing to sitting occurs with hip flexion, posterior sacral tilt, and decreased lumbar lordosis to accommodate a flexed femur and prevent impingement and dislocation...
August 24, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28936414/the-health-benefits-and-constraints-of-exercise-therapy-for-wheelchair-users-a-clinical-commentary
#18
Terry J Ellapen, Henriëtte V Hammill, Mariette Swanepoel, Gert L Strydom
BACKGROUND: There are approximately 1 billion people living with chronic lower limb disability, many of whom are wheelchair users. OBJECTIVES: Review cardiometabolic and neuromuscular risk profiles of wheelchair users, benefits of regular exercise and the causes of neuromuscular upper limb and hip injuries that hinder regular adherence. METHOD: Literature published between 2013 and 2017 was adopted according to the standard practices for systematic reviews (PRISMA) through Crossref Metadata and Google Scholar searches...
2017: Afr J Disabil
https://www.readbyqxmd.com/read/28932503/effect-of-high-tibial-osteotomy-on-hip-biomechanics-in-patients-with-genu-varum-a%C3%A2-prospective-cohort-study
#19
Mehdi Moghtadaei, Ali Yeganeh, Bahram Boddouhi, Atefe Alaee, Hossein Farahini, Babak Otoukesh
BACKGROUND AND AIMS: The aim of this study is to evaluate the effect of proximal tibia osteotomy on hip biomechanics. METHODS: This cohort study was conducted on 50 knees of 37 patients divided into two groups of unilateral and bilateral surgeries during 2015-2016. Patients underwent medial open-wedge osteotomy of proximal tibia. Axial alignment of lower limb radiography was carried out for the patients before and after the osteotomy. RESULTS: Findings from unilateral and bilateral high tibial osteotomies demonstrated that the average of greater trochanter (GT) angle from femoral head center and also the average angle of knee varus were significantly decreased (P = 0...
June 2017: Interventional Medicine & Applied Science
https://www.readbyqxmd.com/read/28924748/a-multi-joint-model-of-quiet-upright-stance-accounts-for-the-uncontrolled-manifold-structure-of-joint-variance
#20
Hendrik Reimann, Gregor Schöner
The upright body in quiet stance is usually modeled as a single-link inverted pendulum. This agrees with most of the relevant sensory organs being at the far end of the pendulum, i.e., the eyes and the vestibular system in the head. Movement of the body in quiet stance has often been explained in terms of the "ankle strategy," where most movement is generated by the ankle musculature, while more proximal muscle groups are only rarely activated for faster movements or in response to perturbations, for instance, by flexing at the hips in what has been called the "hip strategy...
September 18, 2017: Biological Cybernetics
keyword
keyword
91418
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"