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https://www.readbyqxmd.com/read/28542504/level-of-surgical-experience-is-associated-with-change-in-hip-center-of-rotation-following-cementless-total-hip-arthroplasty-a-radiographic-assessment
#1
Seung-Chan Kim, Young-Wook Lim, Soon-Yong Kwon, Woo-Lam Jo, Sung-Hun Ju, Chan-Joo Park, Choong-Woo Lee, Yong-Sik Kim
OBJECTIVES: After total hip arthroplasty (THA), restoration of hip center of rotation (COR) is essential to ensure stability of the prosthetic hip and longevity of the prosthesis. Our aim was to determine whether, and how, the COR changed postoperatively compared to the native COR following implantation of a cementless acetabular component in anatomical position and to compare the accuracy of cup placement between two surgeons with different levels of surgical experience. MATERIALS AND METHODS: We evaluated 145 patients (145 hips) who underwent unilateral primary THA, who had no distorted acetabulum on the affected hip and a normal contralateral hip...
2017: PloS One
https://www.readbyqxmd.com/read/28542415/pharmacological-thromboprophylaxis-and-its-impact-on-venous-thromboembolism-following-total-knee-and-hip-arthroplasty-in-korea-a-nationwide-population-based-study
#2
Ho-Young Yhim, Juhyun Lee, Ji Yun Lee, Jeong-Ok Lee, Soo-Mee Bang
BACKGROUND: Limited data is available regarding the pharmacological prophylaxis for venous thromboembolism (VTE) in Asian patients undergoing total knee arthroplasty or total hip arthroplasty (TKA/THA). METHODS: We performed a population-based epidemiological study using the Health Insurance Review and Assessment Service database to estimate the rate of pharmacological thromboprophylaxis and its impact on VTE in Korean patients who underwent TKA/THA between 2009 and 2013...
2017: PloS One
https://www.readbyqxmd.com/read/28537994/changes-in-gait-parameters-after-femoral-derotational-osteotomy-in-cerebral-palsy-patients-with-medial-femoral-torsion
#3
Ha Yong Kim, Yong Han Cha, Jae Yong Byun, Young Sub Chun, Won Sik Choy
Medial femoral torsion (MFT) is a common pathologic gait in cerebral palsy (CP) children that can be corrected by femoral derotational osteotomy (FDO). It is not clearly known as to how much various gait parameters change after FDO. The aim of this study was to quantify changes in gait parameters after FDO. The study group included 19 young CP patients (28 limbs, age<20 years, average age: 13.2 years) with symptomatic MFT, treated with distal FDO. The study group was divided into two groups: the unilateral FDO group (UG) and the bilateral FDO group (BG)...
May 19, 2017: Journal of Pediatric Orthopedics. Part B
https://www.readbyqxmd.com/read/28537648/an-anterior-inferior-iliac-spine-avulsion-fracture-in-a-14-year-old-boy-on-human-growth-hormone
#4
Anthony J Scillia, Todd P Pierce, Anthony Festa, Peter Goljan, Vincent K McInerney
We present the case of a young man with an anterior inferior iliac spine (AIIS) avulsion fracture who was taking human growth hormone (HGH) at the time his injury was diagnosed. He presented with chronic hip pain and no traumatic event. Physical exam revealed symptoms of hip impingement. Upon imaging, he was diagnosed with an AIIS avulsion fracture and underwent surgical repair. He returned to full activity six months post-operatively. At 18-months post-operatively, he was pain-free and performing all activities without difficulty...
May 24, 2017: Surgical Technology International
https://www.readbyqxmd.com/read/28536824/association-between-low-bone-mineral-density-and-fibromyalgia-a-meta-analysis
#5
Young Ho Lee, Gwan Gyu Song
We aimed to evaluate the relationship between bone mineral density (BMD) and fibromyalgia (FM). Meta-analyses were performed comparing BMD in FM patients and healthy controls, and in FM patients in subgroups based on ethnicity, BMD site, age, sex, and measurement method. Twelve studies including 695 FM patients and 784 controls were selected. Meta-analysis by ethnicity revealed a significantly lower BMD in the FM group in Caucasian populations [standardized mean difference (SMD) = -0.144, 95% CI = -0.271-(-0...
May 23, 2017: Clinical Rheumatology
https://www.readbyqxmd.com/read/28535752/four-year-trends-in-adiposity-and-its-association-with-hypertension-in-serial-groups-of-young-adult-university-students-in-urban-cameroon-a-time-series-study
#6
Simeon-Pierre Choukem, André-Pascal Kengne, Maxime-Leolein Nguefack, Yannick Mboue-Djieka, Daniel Nebongo, Jackson T Guimezap, Jean Claude Mbanya
BACKGROUND: Obesity is a major risk factor for non-communicable diseases (NCDs) and is growing rapidly globally including in sub-Saharan Africa (SSA). We aimed to assess the trend in adiposity markers in Cameroonian university students, and investigated their associations with hypertension. METHODS: From 2009 to 2012, we annually measured weight, height, blood pressure, waist (WC) and hip circumferences, and calculated the body mass index (BMI) and other indices of adiposity in consecutive students aged 18 years or above, during their registration...
May 23, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28535435/multi-segmental-thoracic-spine-kinematics-measured-dynamically-in-the-young-and-elderly-during-flexion
#7
Dominika Ignasiak, Andrea Rüeger, Stephen J Ferguson
In contrast to the cervical and lumbar region, the normal kinematics of the thoracic spine have not been thoroughly investigated. The aim of this study was to characterize normal multi-segmental continuous motion of the whole thoracolumbar spine, during a flexion maneuver, in young and elderly subjects. Forty-two healthy volunteers were analyzed: 21 young (age=27.00±3.96) and 21 elderly (age=70.1±3.85). Spinal motion was recorded with a motion-capture system and analyzed using a 3rd order polynomial function to approximate spinal curvature throughout the motion sequence...
May 20, 2017: Human Movement Science
https://www.readbyqxmd.com/read/28525408/rebound-deformity-after-growth-modulation-in-patients-with-coronal-plane-angular-deformities-about-the-knee-who-gets-it-and-how-much
#8
Lise A Leveille, Ozan Razi, Charles E Johnston
BACKGROUND: With observed success and increased popularity of growth modulation techniques, there has been a trend toward use in progressively younger patients. Younger age at growth modulation increases the likelihood of complete deformity correction and need for implant removal before skeletal maturity introducing the risk of rebound deformity. The purpose of this study was to quantify magnitude and identify risk factors for rebound deformity after growth modulation. METHODS: We performed a retrospective review of all patients undergoing growth modulation with a tension band plate for coronal plane deformity about the knee with subsequent implant removal...
May 18, 2017: Journal of Pediatric Orthopedics
https://www.readbyqxmd.com/read/28511967/a-sliding-hip-screw-augmented-with-2-screws-is-biomechanically-similar-to-an-inverted-triad-of-cannulated-screws-in-repair-of-a-pauwels-type-iii-fracture
#9
B Kemker, K Magone, J Owen, P Atkinson, S Martin, T Atkinson
OBJECTIVE: Pauwels III femoral neck fractures are highly unstable. These fractures are commonly treated with three cannulated screws or sliding hip screw (SHS) implants, however high rates of non-union persist. A hybrid SHS construct has recently been proposed. The objective of the study was to compare this construct to the familiar inverted triad of cannulated screws and to a single SHS. METHODS: Fourth generation biomechanical femur analogs were used to create a highly repeatable injury model...
May 8, 2017: Injury
https://www.readbyqxmd.com/read/28508821/measuring-the-negative-impact-of-long-sitting-hours-at-high-school-students-using-the-microsoft-kinect
#10
Norbert Gal-Nadasan, Emanuela Georgiana Gal-Nadasan, Vasile Stoicu-Tivadar, Dan V Poenaru, Diana Popa-Andrei
This paper suggests the usage of the Microsoft Kinect to detect the onset of the scoliosis at high school students due to incorrect sitting positions. The measurement is done by measuring the overall posture in orthostatic position using the Microsoft Kinect. During the measuring process several key points of the human body are tracked like the hips and shoulders to form the postural data. The test was done on 30 high school students who spend 6 to 7 hours per day in the school benches. The postural data is statistically processed by IBM Watson's Analytics...
2017: Studies in Health Technology and Informatics
https://www.readbyqxmd.com/read/28507967/surgery-of-a-rare-case-of-multiple-synovial-osteochondromatosis-of-the-hip-joint
#11
Yi Min Zhang, Xiaoguang Liu
INTRODUCTION: Primary synovial osteochondromatosis of the hip is a benign disorder, which is not frequently seen clinically. The characteristic of this disease is proliferation of synovium and formation of loose bodies inside the joint. It is known that only the loose bodies derived from synovium were called synovial osteochondromatosis. Although it can take place in any joint, the knee is most commonly affected, involvement of the hip joint is relatively rare. We report a young man who has multiple synovial osteochondromatosis in his left hip...
November 2016: Journal of Orthopaedic Case Reports
https://www.readbyqxmd.com/read/28506299/developmental-hip-dysplasia-treated-by-total-hip-arthroplasty-using-a-cementless-wagner-cone-stem-in-young-adult-patients-with-a-small-physique
#12
Ping Zhen, Jun Liu, Hao Lu, Hui Chen, Xusheng Li, Shenghu Zhou
BACKGROUND: Developmental hip dysplasia (DDH) may lead to severe acetabular and femoral abnormalities that can render total hip arthroplasty (THA) challenging, especially in DDH patients with a small physique. Most conventional cemented or cementless femoral components are often difficult to implant in the narrow femoral canal and require slight version correction during surgery. The aim of this study was to present the mid-term results of THA in the treatment of DDH patients with a small physique using a cementless Wagner cone prosthesis (Zimmer®, US)...
May 15, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28505164/human-decellularized-bone-scaffolds-from-aged-donors-show-improved-osteoinductive-capacity-compared-to-young-donor-bone
#13
Christopher A Smith, Tim N Board, Paul Rooney, Mark J Eagle, Stephen M Richardson, Judith A Hoyland
To improve the safe use of allograft bone, decellularization techniques may be utilized to produce acellular scaffolds. Such scaffolds should retain their innate biological and biomechanical capacity and support mesenchymal stem cell (MSC) osteogenic differentiation. However, as allograft bone is derived from a wide age-range, this study aimed to determine whether donor age impacts on the ability an osteoinductive, acellular scaffold produced from human bone to promote the osteogenic differentiation of bone marrow MSCs (BM-MSC)...
2017: PloS One
https://www.readbyqxmd.com/read/28503538/effects-of-a-static-stretch-using-a-load-on-low-back-pain-patients-with-shortened-tensor-fascia-lata
#14
Hae-In Bae, Dae-Young Kim, Yun-Hee Sung
Stretch of tensor fascia lata (TFL) improves range of motion on hip and pelvis and it reported to help reduce low back pain. Accordingly, the purpose of this study was to investigate effects of static stretching using a load on TFL in patients with low back pain. Twenty three subjects were recruited according to the selection criteria. The subjects were randomly assigned to static stretching group (control, n=12), and a static stretching using a load group (experimental, n=11). All group performed stretching for 15 min (side for 50 sec per time and a rest for 30 sec) per day in the left side and the right, respectively, for 2 weeks...
April 2017: Journal of Exercise Rehabilitation
https://www.readbyqxmd.com/read/28501732/asymmetrical-stabilization-and-mobilization-exploited-during-static-single-leg-stance-and-goal-directed-kicking
#15
Adam C King, Zheng Wang
The motor control properties of the right and left legs are dependent on the stabilization and mobilization features of the motor tasks. The current investigation examined the right and left leg control differences - interlateral asymmetries - during static single leg stance and dynamic goal directed kicking with an emphasis of the asymmetrical stabilization and mobilization components of movements. Ten young, healthy, right-leg preferred individuals with minimal kicking experience completed both tests on each limb...
May 11, 2017: Human Movement Science
https://www.readbyqxmd.com/read/28501221/return-to-sport-and-clinical-outcomes-after-hip-arthroscopic-labral-repair-in-young-amateur-athletes-minimum-2-year-follow-up
#16
Rohith Mohan, Nick R Johnson, Mario Hevesi, Christopher M Gibbs, Bruce A Levy, Aaron J Krych
PURPOSE: To determine the rate of return of young amateur athletes to sport after hip arthroscopy, their clinical outcomes, and pathologic risk factors for worse outcomes 2 years after surgery. METHODS: This study included all patients between age 13 and 23 who participated in a sport prior to surgery with intent to return who underwent hip arthroscopy after failure of comprehensive nonoperative management for whom 2-year outcome scores were available. Outcomes collected retrospectively included modified Harris Hip Score (mHHS) and the Hip Outcome Scores (HOS) subscales for activities of daily living (ADL) and sport (HOS Sport)...
May 10, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28500505/rehydration-improves-the-ductility-of-dry-bone-allografts
#17
Roger Erivan, Guillaume Villatte, Régis Cueff, Stéphane Boisgard, Stéphane Descamps
Processing of bone allografts improves infectious safety and allows storing bone substitutes at room temperature. The aim of this study was to compare mechanical properties of the processed Osteopure™ bone with fresh frozen bone. All the samples were pieces from femoral heads retrieved during hip arthroplasty operations. The processing includes chemical decellularization, drying and irradiation with 25 kGy. Three types of samples were tested: 1. fresh frozen thawed wet, 2. dry non-rehydrated graft 3. dry rehydrated graft...
May 12, 2017: Cell and Tissue Banking
https://www.readbyqxmd.com/read/28499954/systematic-review-and-meta-analysis-of-gait-mechanics-in-young-and-older-adults
#18
Katherine A Boyer, Russell T Johnson, Jacob J Banks, Carl Jewell, Jocelyn F Hafer
BACKGROUND: Age-related gait changes may play a critical role in functional limitations of older adults. Despite sizable interest in determining how age alters walking mechanics, small sample sizes and varied outcome measures have precluded a comprehensive understanding of the impact of age on lower extremity joint kinematics and kinetics. OBJECTIVE: The aim of this study was to perform a systematic review and meta-analysis of the aging gait mechanics literature...
May 9, 2017: Experimental Gerontology
https://www.readbyqxmd.com/read/28497453/trends-in-total-hip-arthroplasty-in-young-patients-results-from-a-regional-register
#19
Amit Kumar, Benjamin V Bloch, Colin Esler
INTRODUCTION: In the United Kingdom, over 83,000 primary total hip arthroplasties (THAs) were performed last year, of which 20% are in patients under the age of 60 years. These patients generally have a longer life expectancy and a higher activity level than an older cohort, which may potentially translate to higher revision rates. METHODS: We reviewed our Trent regional arthroplasty register to assess current surgical practice in younger patients undergoing total hip arthroplasty...
May 10, 2017: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
https://www.readbyqxmd.com/read/28488163/historical-review-of-arthroscopic-surgery-of-the-hip
#20
REVIEW
Abigail C L Magrill, Naoki Nakano, Vikas Khanduja
BACKGROUND & PURPOSE: Increasing our appreciation of the historical foundations of hip arthroscopy offers greater insight and understanding of the field's current and future applications. This article offers a broad history of the progress of hip arthroscopy. METHODS: Hip arthroscopy's development from the early technologies of endoscopy to the present day is described through a review of the available literature. RESULTS: Endoscopic science begins with the Lichtleiter, developed by Phillip Bozzini (1779-1809) in 1806, but endoscopes were not applied to joints until 1912, as presented by Severin Nordentoft (1866-1922)...
May 9, 2017: International Orthopaedics
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