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acetabular and femur neck

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https://www.readbyqxmd.com/read/29137619/percutaneous-medial-hemi-epiphysiodesis-using-a-transphyseal-screw-for-caput-valgum-associated-with-developmental-dysplasia-of-the-hip
#1
Chang Ho Shin, Wan Kee Hong, Doo Jae Lee, Won Joon Yoo, In Ho Choi, Tae-Joon Cho
BACKGROUND: The purpose of this study was to evaluate the radiologic outcome of percutaneous medial hemi-epiphysiodesis using a transphyseal screw for the management of caput valgum associated with developmental dysplasia of the hip (DDH). METHODS: Eighteen hips (18 patients) having caput valgum treated with screw hemi-epiphysiodesis were followed for more than 2 years, and were included in this study. The mean age at the time of the index operation was 8.3 years (range, 4...
November 14, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/29080951/morphological-variation-of-the-anterior-inferior-iliac-spine-affects-hip-range-of-motion-in-flexion-after-rotational-acetabular-osteotomy
#2
Hidetoshi Hamada, Masaki Takao, Takashi Sakai, Nobuhiko Sugano
PURPOSE: Reduced range of motion (ROM) in flexion and internal rotation are associated with impaired activities of daily living (ADL) after rotational acetabular osteotomy (RAO). This study focused on the morphological variation of the anterior inferior iliac spine in developmental dysplasia of the hip (DDH) and its impact on post-operative bony ROM after RAO. This study aimed to investigate the association between bony ROM after RAO and pre-operative morphological factors of the pelvis and femur, including a positional variation of the anterior inferior iliac spine...
October 28, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/29040131/acetabular-global-insufficiency-in-patients-with-down-syndrome-and-hip-related-symptoms-a-matched-cohort-study
#3
Evgeny Bulat, Daniel A Maranho, Leslie A Kalish, Michael B Millis, Young-Jo Kim, Eduardo N Novais
BACKGROUND: The etiology of hip instability in Down syndrome is not completely understood. We investigated the morphology of the acetabulum and femur in patients with Down syndrome and compared measurements of the hips with those of matched controls. METHODS: Computed tomography (CT) images of the pelvis of 42 patients with Down syndrome and hip symptoms were compared with those of 42 age and sex-matched subjects without Down syndrome or history of hip disease who had undergone CT for abdominal pain...
October 18, 2017: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/28958658/a-minimum-ten-years-of-follow-up-of-alumina-head-on-delta-liner-total-hip-arthroplasty
#4
Won-Sik Choy, Yong-Han Cha, Chung-Youb Jeon, Kyu-Sang Lee, Ha-Yong Kim
BACKGROUND: In the early days when delta ceramics were developed, there was a period of using delta ceramic liner and alumina ceramic head. Therefore, the purpose of this study is to investigate the clinical and radiological outcomes of total hip arthroplasty using delta ceramic liner on alumina ceramic head after a minimum of 10 years of follow-up and to evaluate problems of early delta ceramic liner. METHODS: Alumina on delta cementless total hip arthroplasty was performed in 92 hips (85 patients) from August 2005 to March 2007 at our hospital...
September 7, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28902001/guided-growth-of-the-proximal-femur-for-the-management-of-hip-dysplasia-in-children-with-cerebral-palsy
#5
Nicola Portinaro, Marco Turati, Matteo Cometto, Marco Bigoni, Jon R Davids, Artemisia Panou
BACKGROUND: Progressive hip displacement is one of the most common and debilitating deformities seen in children with cerebral palsy (CP). The aim of this study was to evaluate the results of temporary medial hemiepiphysiodesis of the proximal femur (TMH-PF) using a transphyseal screw to control hip migration during growth in children with CP. METHODS: This was a retrospective study of children with CP and hip dysplasia, age 4 to 11 years and GMFCS levels III-V...
September 8, 2017: Journal of Pediatric Orthopedics
https://www.readbyqxmd.com/read/28688198/study-of-the-interactions-between-proximal-femur-3d-bone-shape-cartilage-health-and-biomechanics-in-patients-with-hip-osteoarthritis
#6
Valentina Pedoia, Michael A Samaan, Gaurav Inamdar, Matthew C Gallo, Richard B Souza, Sharmila Majumdar
In this study quantitative MRI and gait analysis were used to investigate the relationships between proximal femur 3D bone shape, cartilage morphology, cartilage biochemical composition, and joint biomechanics in subject with hip Osteoarthritis (OA). Eighty subjects underwent unilateral hip MR-imaging: T1ρ and T2 relaxation times were extracted through voxel based relaxometry and bone shape was assessed with 3D MRI-based statistical shape modeling. In addition, 3D gait analysis was performed in seventy-six of the studied subjects...
July 8, 2017: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/28574116/the-influence-of-acetabular-morphology-on-prediction-of-proximal-femur-fractures-types-in-an-elderly-population
#7
Abbas Tokyay, Melih Güven, Mehmet E Encan, Erhan Okay, Ozgur Akbaba
INTRODUCTION: The role of proximal femur morphology to the development of certain proximal femur fracture types both femoral neck and trochanteric fractures has been observed. However, the relavance of acetabular morphology to the development of proximal femur fractures is not extensively questioned. Therefore the aim of the study was to determine whether there is a correlation between acetabular morphology and pathogenesis of 2 different hip fracture types after low energy trauma. METHODS: This retrospective study includes 60 cases (41 women, 19 men) with a proximal femoral fracture after a low energy trauma between July 2012 and December 2014...
September 19, 2017: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
https://www.readbyqxmd.com/read/28529662/femoral-and-acetabular-re-alignment-in-slipped-capital-femoral-epiphysis
#8
M Leunig, H M Manner, L Turchetto, R Ganz
NEW PATHOPHYSIOLOGICAL INSIGHTS: Based on improved knowledge of the vascular supply of the proximal femur, a safe surgical dislocation of the hip joint was established allowing direct insights to the pathomorphological malfunctioning of the joint. One insight was that slipped capital femoral epiphysis (SCFE) impingement leads to substantial damage of the chondrolabral rim area, even in the presence of minor slips. A further surgical development was the extended retinacular flap allowing for correction of the deformity with calculable risk for iatrogenic necrosis...
April 2017: Journal of Children's Orthopaedics
https://www.readbyqxmd.com/read/28415025/unusual-combination-of-femoral-head-dislocation-associated-acetabular-fracture-with-multipart-femoral-fractures-case-report
#9
Erdal Uzun, Ali Eray Günay, İbrahim Karaman, Abdülhamit Mısır, Turan Bilge Kızkapan, Mustafa Özçamdallı
INTRODUCTION: Traumatic hip dislocation associated with femur intertrocanteric fracture is a rare and severe injury and it frequently occurs following a high energy trauma, Associated acetabular fractures with this injury are even more rare and potentially cause devastating consequences including avascular necrosis of the femoral head and subsequent early secondary osteoarthritis of the hip joint. PRESENTATION OF CASE: In this case report, we present a 20year old polytraumatized patient with traumatic hip dislocation associated with ipsilateral acetabulum fracture and simultaneous fractures of the ipsilateral femur...
2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28400660/anthropometric-analysis-of-the-hip-joint-in-south-indian-population-using-computed-tomography
#10
Vetrivel Chezian Sengodan, Elangovan Sinmayanantham, J Saravana Kumar
BACKGROUND: Proximal femur has a significant functional modification on erect bipedal posture. Various proximal femoral parameters were analyzed in Western literature. This information was utilized in prosthetic designing. Implants designed for Western people are used in Indian patients undergoing hip surgeries such as internal fixation and replacement arthroplasty. MATERIALS AND METHODS: The study was done among 200 individuals (400 hips) with a normal hip joint after ethical committee clearance...
March 2017: Indian Journal of Orthopaedics
https://www.readbyqxmd.com/read/28336189/3d-cad-reverse-engineering-technique-for-assessment-of-thai-morphology-proximal-femur-and-acetabulum
#11
Nattapon Chantarapanich, Sattaya Rojanasthien, Bancha Chernchujit, Banchong Mahaisavariya, Kavin Karunratanakul, Prasert Chalermkarnnon, Chinnawit Glunrawd, Kriskrai Sitthiseripratip
PURPOSE: To assess morphological parameters of proximal femur and acetabulum in Thai population with three-dimensional measurement technique, and to analysis of collateral side symmetric, gender difference, and correlation between morphometric parameters. METHODS: Investigation was performed in 240 femurs. All three-dimensional femur models were acquitted from 64-slice spiral CT scanner. Morphometric parameters under consideration included acetabular diameter, femoral head diameter, shaft isthmus location, intramedullary canal diameter, diaphyseal diameter, femoral head height, femoral neck isthmus, femoral neck length, neck shaft angle, bow angle, and anteversion angle...
March 20, 2017: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/28328561/does-orientation-of-the-femoral-head-affect-acetabular-development-an-experimental-study-in-lamb
#12
Luis Moraleda, Christian Bravo, Francisco Forriol, Javier Albiñana
BACKGROUND: Derotational osteotomy of the proximal femur has proved to be effective in the treatment of residual acetabular dysplasia. However, the reason why this osteotomy is effective remains debatable. The purpose of this study is to investigate if an alteration of femoral head orientation affects acetabular growth. METHODS: A proximal femoral osteotomy was performed in 21 lambs aged 3 months: 5 varus osteotomies (110 degrees), 4 valgus osteotomies (150 degrees), and 12 derotation osteotomies...
March 21, 2017: Journal of Pediatric Orthopedics
https://www.readbyqxmd.com/read/28314887/mechanical-strains-passing-through-the-acetabular-labrum-modify-its-shape-during-hip-motion-an-anatomical-study
#13
Matthieu Ollivier, Thomas Le Corroller, Sebastien Parratte, Patrick Chabrand, Jean-Noël Argenson, Olivier Gagey
PURPOSE: The function of the hip labrum during hip motion remains poorly known. Our hypothesis was that acetabular labrum will deform and change its shape during adduction to abduction movement consecutively to variation of strains passing from the acetabulum to the femoral head. An ex vivo anatomical study was conducted to analyse the morphological parameters variation of the mid-portion of the labrum (length, thickness, shape, deformation) as well as femoro-labral strains during hip adduction to abduction movement...
June 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28116262/acetabular-prosthetic-protrusio-after-bipolar-hemi-arthroplasty-of-the-hip-case-report-and-review-of-the-literature
#14
Jason Bt Lim, Chia Liang Ang, Hee Nee Pang
INTRODUCTION: Bipolar hemi-arthroplasty of the hip is a commonly performed procedure in elderly patients with intra-capsular fracture of the neck of the femur with good short-term results for pain relief, return to activity and morbidity. The incidence of intra-pelvic prosthesis migration or protrusion is rare and one of the inciting factors is chronic low-grade sepsis. Acetabular prosthesis protrusion poses a difficult and challenging surgical problem due to surrounding neurovascular structures...
July 2016: Journal of Orthopaedic Case Reports
https://www.readbyqxmd.com/read/28111703/total-hip-replacement-in-complex-acetabular-fractures-using-a-coned-hemipelvic-acetabular-component
#15
Samuel E McMahon, Laurence A Cusick
Acetabular fractures in the elderly are a challenging clinical problem due to both the complex nature of operative intervention, osteoporotic bone and the multiple comorbidities of the patients involved. They are associated with poor functional outcomes and high levels of morbidity and mortality. Treatment currently ranges from conservative treatment, open reduction internal fixation and variations of total hip arthroplasty. We present the surgical technique and early results of the use of a coned hemipelvic acetabular component in the primary treatment of these complex injuries...
July 2017: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/28050531/femoroacetabular-impingement
#16
REVIEW
José Batista Volpon
The femoroacetabular impingement (FAI) is as condition recently characterized that results from the abnormal anatomic and functional relation between the proximal femur and the acetabular border, associated with repetitive movements, which lead labrum and acetabular cartilage injuries. Such alterations result from anatomical variations such as acetabular retroversion or decrease of the femoroacetabular offset. In addition, FAI may result from acquired conditions as malunited femoral neck fractures, or retroverted acetabulum after pelvic osteotomies...
November 2016: Revista Brasileira de Ortopedia
https://www.readbyqxmd.com/read/27777916/result-of-modular-necks-in-primary-total-hip-arthroplasty-with-a-average-follow-up-of-four-years
#17
Jemin Yi, Kye Young Han, Young Jun Nam, Keun Woo Kim
PURPOSE: This study aimed to investigate the outcomes of modular neck-utilization in primary total hip arthroplasty (THA). MATERIALS AND METHODS: Thirty patients (34 hips) who had modular stem THA between April 2011 and January 2013 were evaluated. There were 19 men and 11 women with a mean age of 61.2 years at the time of surgery. There were 20 cases of osteonecrosis of femoral head, 7 cases of osteoarthritis, 6 cases of femur neck fracture, and 1 case of rheumatoid arthritis...
September 2016: Hip & Pelvis
https://www.readbyqxmd.com/read/27646313/native-femoral-anteversion-should-not-be-used-as-reference-in-cementless-total-hip-arthroplasty-with-a-straight-tapered-stem-a-retrospective-clinical-study
#18
Michael Worlicek, Markus Weber, Benjamin Craiovan, Michael Wörner, Florian Völlner, Hans R Springorum, Joachim Grifka, Tobias Renkawitz
BACKROUND: Improper femoral and acetabular component positioning can be associated with instability, impingement, component wear and finally patient dissatisfaction in total hip arthroplasty (THA). The concept of "femur first"/"combined anteversion", incorporates various aspects of performing a functional optimization of the prosthetic stem and cup position of the stem relative to the cup intraoperatively. In the present study we asked two questions: (1) Do native femoral anteversion and anteversion of the implant correlate? (2) Do anteversion of the final broach and implant anteversion correlate? METHODS: In a secondary analysis of a prospective controlled trial, a subgroup of 55 patients, who underwent computer-assisted, cementless THA with a straight, tapered stem through an anterolateral, minimally invasive (MIS) approach in a lateral decubitus position were examined retrospectivly...
September 20, 2016: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/27632667/-the-role-of-a-modular-universal-tumour-and-revision-system-mutars%C3%A2-in-lower-limb-endoprosthetic-revision-surgery-outcome-analysis-of-25-patients
#19
J Schmolders, S Koob, P Schepers, S Gravius, D C Wirtz, C Burger, P H Pennekamp, A C Strauss
Introduction/Background: With extended life expectancy, the number of primary joint arthroplasties has also increased. Revision surgery is also more often necessary, due to aseptic or septic loosening of the prosthesis or periprosthetic fracture. Large bone defects often occur in these patients and several non-modular, conventional implants are available to handle this difficult situation. Custom made implants offer an individually designed and defect-adapted shape with perfect covering of the lesion, but may delay the operation...
February 2017: Zeitschrift Für Orthopädie und Unfallchirurgie
https://www.readbyqxmd.com/read/27395450/three-dimensional-evaluation-of-skeletal-deformities-of-the-pelvis-and-lower-limbs-in-ambulant-children-with-cerebral-palsy
#20
Abir Massaad, Ayman Assi, Ziad Bakouny, Christophe Sauret, Nour Khalil, Wafa Skalli, Ismat Ghanem
Skeletal abnormalities, affecting posture and walking pattern, increase with motor impairment in children with cerebral palsy (CP). However, it is not known whether these skeletal malalignments occur in children with slight motor impairment. Our aim was to evaluate skeletal malalignment at the level of the pelvis and lower limbs in ambulant children with CP, with slight motor impairment, using a low dose biplanar X-ray technique. Twenty-seven children with spastic CP (mean age: 10.9±4years, 7 Hemiplegia, 20 Diplegia, GMFCS levels I:17, II:10), with no previous treatments at the hips and knees, underwent EOS(®) biplanar X-rays...
September 2016: Gait & Posture
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