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https://www.readbyqxmd.com/read/28806199/does-late-hip-dysplasia-occur-after-normal-ultrasound-screening-in-breech-babies
#1
Andrew R Morris, Joanna M C Thomas, Isabel C Reading, Nicholas M P Clarke
BACKGROUND: Recent literature has raised concern regarding the occurrence of late dysplasia after normal screening in breech babies. One paper states a late dysplasia incidence of 29%. This finding is in contrast with other published work, which suggests breech presentation is predictive of spontaneous stabilization of the unstable neonatal hip. We decided to identify the rate of late dysplasia after normal screening in our patient cohort and also to investigate the use of a prophylactic abduction diaper...
August 11, 2017: Journal of Pediatric Orthopedics
https://www.readbyqxmd.com/read/28803815/patient-specific-contact-stress-does-not-predict-polyethylene-wear-rate-in-a-specific-pressfit-cup
#2
Georg Matziolis, Linda Krakow, Frank Layher, Klaus Sander, Joerg Bossert, Steffen Brodt
BACKGROUND: The most common reason for revision total hip arthroplasty remains polyethylene wear. Development dysplasia of the hip and revision situations requires a conscious compromise of implant position. The surgeon should know about the consequence on wear via a possible change in hip contact force. The objective of this study is to investigate whether annual wear is dependent on hip contact force. METHODS: Forty-five inserts (DuraLoc, DePuy) that were explanted in our department were included...
July 25, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28790464/the-history-of-biomechanics-in-total-hip-arthroplasty
#3
Jan Van Houcke, Vikas Khanduja, Christophe Pattyn, Emmanuel Audenaert
Biomechanics of the hip joint describes how the complex combination of osseous, ligamentous, and muscular structures transfers the weight of the body from the axial skeleton into the appendicular skeleton of the lower limbs. Throughout history, several biomechanical studies based on theoretical mathematics, in vitro, in vivo as well as in silico models have been successfully performed. The insights gained from these studies have improved our understanding of the development of mechanical hip pathologies such as osteoarthritis, hip fractures, and developmental dysplasia of the hip...
July 2017: Indian Journal of Orthopaedics
https://www.readbyqxmd.com/read/28782077/a-retrospective-study-on-the-relationship-between-altered-native-acetabular-angle-and-vertical-implant-malpositioning
#4
Jorge Rojas, Maria Bautista, Guillermo Bonilla, Omar Amado, Elina Huerfano, Daniel Monsalvo, Adolfo Llinás, José Navas
PURPOSE: Acetabular cup positioning in extreme angles of vertical position affects both stability and long-term survivorship of total hip arthroplasty. The purpose of this study is to determine whether native Sharp's angle is associated with an increased abduction angle of the acetabular component. METHODS: Consecutive patients who underwent primary total hip replacement between February 2012 and August 2015 were included. Vertical positioning of acetabular implant in the antero-posterior post-operative radiographs were measured...
August 7, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28777280/a-comparison-of-pavlik-harness-treatment-regimens-for-dislocated-but-reducible-ortolani-hips-in-infantile-developmental-dysplasia-of-the-hip
#5
Adam C Hines, David C Neal, Terri Beckwith, ChanHee Jo, Harry K W Kim
BACKGROUND: Variation exists in the Pavlik harness (PH) treatment regimen for infantile developmental dysplasia of the hip (DDH). The purpose of this study was to determine if the daily PH wear duration (23 vs. 24 h) and frequency of follow-up visits affect the clinical and radiographic outcomes of infants with dislocated but reducible (Ortolani+) hips. METHODS: This study reviewed prospectively enrolled patients with DDH in a single center who presented at age <6 months with Ortolani+ hips and were treated with PH...
August 2, 2017: Journal of Pediatric Orthopedics
https://www.readbyqxmd.com/read/28774369/-unusual-facies-with-delayed-development-and-multiple-malformations-in-a-14-month-old-boy
#6
Tong Lu, Yi Wang
Schinzel-Giedion syndrome is a rare autosomal dominant genetic disease and has the clinical features of severe delayed development, unusual facies, and multiple congenital malformations. In this case report, a 14-month-old boy had the clinical manifestations of delayed development, unusual facies (prominent forehead, midface retraction, hypertelorism, low-set ears, upturned nose, and micrognathia), and multiple congenital malformations (including cerebral dysplasia, dislocation of the hip joint, and cryptorchidism)...
August 2017: Zhongguo Dang Dai Er Ke za Zhi, Chinese Journal of Contemporary Pediatrics
https://www.readbyqxmd.com/read/28771576/prospective-evaluation-of-a-patented-dna-test-for-canine-hip-dysplasia-chd
#7
Eberhard Manz, Bernd Tellhelm, Michael Krawczak
Genetic testing has been propagated as a suitable means to specify individual risks for canine hip dysplasia (CHD). However, the current lack of validation of most genetic CHD tests has left dog owners and breeders in the dark about their practical utility. Therefore, the Society for German Shepherd Dogs (Verein für Deutsche Schäferhunde, SV) initiated a prospective study of 935 animals to assess independently the value of a genetic CHD test (European Patent Specification EP 2 123 777 B1) that was developed by Distl et al...
2017: PloS One
https://www.readbyqxmd.com/read/28768791/the-correlation-between-salter-s-criteria-for-avascular-necrosis-of-the-femoral-head-and-kalamchi-s-prognostic-classification-following-the-treatment-of-developmental-dysplasia-of-the-hip
#8
Y Tsukagoshi, M Kamegaya, H Kamada, T Saisu, M Morita, J Kakizaki, Y Tomaru, M Yamazaki
AIMS: The aim of this study was to evaluate the correlation between Salter's criteria and Kalamchi's classification of avascular necrosis in patients treated for developmental dysphasia of the hip (DDH). PATIENTS AND METHODS: The study involved a retrospective analysis of 123 patients (123 hips) with DDH treated by operative and non-operative reduction before the age of two years, with a minimum follow-up of ten years. Salter's criteria (S1 to S4) were determined from radiographs obtained at one to two years post-reduction, whilst the Kalamchi grade was determined from radiographs obtained at ten or more years of age...
August 2017: Bone & Joint Journal
https://www.readbyqxmd.com/read/28765997/changes-in-femoral-head-size-and-growth-rate-in-young-children-with-severe-developmental-dysplasia-of-the-hip
#9
Matthew R Wanner, Randall T Loder, S Gregory Jennings, Fangqian Ouyang, Boaz Karmazyn
BACKGROUND: Developmental dysplasia of the hip (DDH) is known to result in smaller femoral head size in toddlers; however, alterations in femoral head size and growth have not been documented in infants. OBJECTIVE: To determine with ultrasound (US) whether femoral head size and growth are altered in infants (younger than 1 year of age) with severe DDH. MATERIALS AND METHODS: We identified all patients at our tertiary care children's hospital from 2002 to 2014 who underwent US for DDH...
August 1, 2017: Pediatric Radiology
https://www.readbyqxmd.com/read/28762687/developmental-dysplasia-of-the-hip-in-infants-a-clinical-report-from-the-aap-on-evaluation-and-referral
#10
Lisa Hauk
No abstract text is available yet for this article.
August 1, 2017: American Family Physician
https://www.readbyqxmd.com/read/28759983/validation-of-ct-image-based-software-for-three-dimensional-measurement-of-acetabular-coverage-profile
#11
Marcus P Wenzl, Markus Heller, Viktor Janz, Carsten Perka, Georgi I Wassilew
BACKGROUND: Plain radiography, 2-dimensional (2D) magnetic resonance imaging (MRI), and computed tomography (CT) do not precisely display morphology and acetabular coverage in developmental dysplasia of the hip or pincer-type femoroacetabular impingement. Pelvic position and pelvic tilt affect assessment of the acetabular parameters, leading to misinterpretation. OBJECTIVE: We tested a 3-dimensional (3D) CT evaluation script to calculate the crossover sign (COS), acetabular coverage and morphology...
July 21, 2017: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
https://www.readbyqxmd.com/read/28756566/pten-hamartoma-of-the-soft-tissue-the-initial-manifestation-of-an-underlying-pten-hamartoma-tumor-syndrome-in-a-4-year-old-female
#12
Charles B Chism, Lindsay Crawford, Amanda Tchakarov, Alyaa Al-Ibraheemi, Nicholas M Beckmann
A 4-year-old female was referred to pediatric orthopedic surgery for left leg pain and limping for 3 months following a motor vehicle collision. Recently, the patient's mother had noted left knee swelling and dragging of the left leg when walking. Past medical history was significant for hip dysplasia with slight leg length discrepancy. The patient was otherwise healthy. Physical examination was remarkable for left pre-patellar soft tissue fullness with normal range of motion. There was no warmth or tenderness...
July 29, 2017: Skeletal Radiology
https://www.readbyqxmd.com/read/28747338/copy-number-loss-in-the-region-of-the-aspn-gene-in-patients-with-acetabular-dysplasia-aspn-cnv-in-acetabular-dysplasia
#13
T Sekimoto, M Ishii, M Emi, S Kurogi, T Funamoto, Y Yonezawa, T Tajima, T Sakamoto, H Hamada, E Chosa
OBJECTIVES: We have previously investigated an association between the genome copy number variation (CNV) and acetabular dysplasia (AD). Hip osteoarthritis is associated with a genetic polymorphism in the aspartic acid repeat in the N-terminal region of the asporin (ASPN) gene; therefore, the present study aimed to investigate whether the CNV of ASPN is involved in the pathogenesis of AD. METHODS: Acetabular coverage of all subjects was evaluated using radiological findings (Sharp angle, centre-edge (CE) angle, acetabular roof obliquity (ARO) angle, and minimum joint space width)...
July 2017: Bone & Joint Research
https://www.readbyqxmd.com/read/28741029/subtrochanteric-femoral-shortening-osteotomy-combined-with-cementless-total-hip-replacement-for-crowe-type-iv-developmental-dysplasia-a-retrospective-study
#14
Giuseppe Rollo, Giuseppe Solarino, Giovanni Vicenti, Girolamo Picca, Massimiliano Carrozzo, Biagio Moretti
BACKGROUND: Total hip replacement for high dislocation of the hip presents some difficulties, considering patients' young ages, the abnormal hip anatomy and the high rate of complications. In this study, we present our experience in terms of clinical and radiological results in the treatment of Crowe type IV hips with subtrochanteric femoral shortening osteotomy and cementless total hip replacement. MATERIALS AND METHODS: We retrospectively reviewed 15 patients with Crowe type IV hip dysplasia (two bilateral cases for a total of 17 hips) treated with cementless total hip replacement associated with shortening subtrochanteric osteotomies (nine transversal and eight Z-shape osteotomies) between March 2000 to February 2006...
July 24, 2017: Journal of Orthopaedics and Traumatology: Official Journal of the Italian Society of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/28737530/ultrasound-characteristics-of-clinically-dislocated-but-reducible-hips-with-ddh
#15
Brendan Striano, Emily K Schaeffer, Travis H Matheney, Vidayadhar V Upasani, Charles T Price, Kishore Mulpuri, Wudbhav N Sankar
BACKGROUND: Although ultrasound (US) is frequently used in diagnosis and management of infantile developmental dysplasia of the hip, precise ultrasonographic parameters of what constitutes a dislocation, subluxation etc remain poorly defined. The purpose of this study was (1) to describe the ultrasonographic characteristics of a large cohort of clinically dislocated but reducible hips and (2) to begin to develop ultrasonographic definitions for what constitutes a hip dislocation. METHODS: A retrospective review of prospectively collected data from an international multicenter study group on developmental dysplasia of the hip was conducted on all patients under 6 months of age with hip(s) that were dislocated at rest but reducible based on initial physical examination (ie, Ortolani positive)...
July 21, 2017: Journal of Pediatric Orthopedics
https://www.readbyqxmd.com/read/28736369/-an-ultrasonographic-study-of-the-correlation-between-developmental-dysplasia-of-the-hip-and-congenital-muscular-torticollis-in-children
#16
Na Wang, Yu-le Zhang, Bu-Yun Guan, Li-Ling Zhu, Xue-Hua He, Qian Fang, Zhi-Cheng Liang
OBJECTIVE: To investigate the significance of early screening of pediatric developmental dysplasia of the hip (DDH) and congenital muscular torticollis (CMT) using ultrasonography and establish a simultaneous screening model for pediatric DDH and CMT. METHODS: From January, 2013 to January, 2016, a total of 5060 pediatric patients with suspected DDH and CMT underwent ultrasonic examinations. The diagnostic results of the two diseases were classified into different clinical types, and Chi-square test was used to analyze the one-way relationship between different types of DDH and CMT; correspondence analysis was used for multivariate analysis of the variables...
July 20, 2017: Nan Fang Yi Ke da Xue Xue Bao, Journal of Southern Medical University
https://www.readbyqxmd.com/read/28731779/arthroscopic-labral-base-repair-in-the-hip-5-year-minimum-clinical-outcomes
#17
Benjamin G Domb, Leslie C Yuen, Victor Ortiz-Declet, Jody Litrenta, Itay Perets, Austin W Chen
BACKGROUND: Arthroscopic labral base repair (LBR) in the hip is a previously described technique designed to restore the native functional anatomy of the labrum by reproducing its seal against the femoral head. LBR has been shown to have good short-term outcomes. Hypothesis/Purpose: The purpose was to evaluate clinical outcomes of an LBR cohort with a minimum 5-year follow-up. It was hypothesized that patients who underwent LBR would continue to have significant improvement from their preoperative scores and maintain scores similar to their 2-year outcomes...
July 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28717864/diagnosing-developmental-dysplasia-of-the-hip-using-the-graf-ultrasound-method-risk-and-protective-factor-analysis-in-11-820-universally-screened-newborns
#18
Mohammad Schams, Rob Labruyère, Anne Zuse, Mikolaj Walensi
The essential role of ultrasound examinations in diagnosis and treatment of developmental dysplasia of the hip (DDH) is widely accepted while the weighting and correlation of protective factors and perinatal risk for DDH still give rise to debate. Our aim was to investigate the impact of single and twofold combined risk and protective factors on the newborns' hip maturity, assessed with the Graf ultrasound method. Therefore, data sets of 11,820 universally screened newborns were analyzed. Univariate and logistic regression analyses were performed to correlate risk and protective factors with mature or immature but appropriate for age and pathologic hip types...
July 17, 2017: European Journal of Pediatrics
https://www.readbyqxmd.com/read/28706382/cementless-acetabular-component-with-or-without-upward-placement-in-dysplasia-hip-early-results-from-a-prospective-randomised-study
#19
Zhiqi Zhang, Peihui Wu, Zhiyu Huang, Baoxi Yu, Hong Sun, Ming Fu, Yan Kang, Weiming Liao
BACKGROUND: Total hip arthroplasty (THA) in developmental dysplasia of hip (DDH) is difficult for the abnormal acetabulum. The purpose of this study was to evaluate the difference of anatomic and upward placement of acetabular component during early stage. METHODS: From April 2014 through June 2015, forty DDH patients (Crowe I to III, 42 hips) were prospectively randomized to either anatomic or upward group. Patient recorded diaries were collected. Radiographs were reviewed...
September 2017: Journal of Orthopaedics
https://www.readbyqxmd.com/read/28701062/prediction-of-the-requirement-of-open-reduction-for-developmental-dysplasia-of-the-hip
#20
Nabil Alassaf
Objective Closed reduction (CR) is a noninvasive treatment for developmental dysplasia of the hip (DDH), and this treatment is confirmed intraoperatively. This study aimed to develop a preoperative estimation model of the probability of requiring open reduction (OR) for DDH. Methods The study design was cross-sectional by screening all patients younger than 2 years who had attempted CR between October 2012 and July 2016 by a single surgeon. Potential diagnostic determinants were sex, age, side, bilaterality, International Hip Dysplasia Institute (IHDI) grade, and acetabular index (AI)...
January 1, 2017: Journal of International Medical Research
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