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https://www.readbyqxmd.com/read/28526613/the-role-of-trochanteric-flip-osteotomy-in-fixation-of-certain-acetabular-fractures
#1
Sandeep Gupta, Jagdeep Singh, Jagandeep Singh Virk
PURPOSE: Complete visualization of certain acetabular fractures of posterior wall or column with cranial extension involving superior dome from standard surgical exposures is a challenge. Osteotomy of the greater trochanter has been used to enhance fracture visualization, especially the dome, in posterior and lateral exposures of the acetabulum. It also decreases the need for excessive muscle retraction. The purpose of the study was to investigate the outcome associated with trochanteric flip osteotomy in the management of certain acetabulum fractures...
March 23, 2017: Chinese Journal of Traumatology, Zhonghua Chuang Shang za Zhi
https://www.readbyqxmd.com/read/28498719/surgical-anatomy-of-the-pelvic-vasculature-with-particular-reference-to-acetabular-screw-fixation-in-cementless-total-hip-arthroplasty-in-asian-population
#2
Hironori Ohashi, Shinichi Kikuchi, Shigeo Aota, Michiyuki Hakozaki, Shinichi Konno
PURPOSE: Pelvic vascular injury is a serious complication associated with acetabular component setting with screw fixation in cementless total hip arthroplasty (THA). In this study, we investigated the safety zone for acetabular component setting with screw fixation in cementless THA as a means to prevent pelvic vascular injury. METHODS: Thirty left hip joints of Japanese cadavers (11 males and 19 females) were analyzed. We used a hemispherical measuring cup with 52 guide holes designed to allow vertical insertion of a Kirschner wire...
January 1, 2017: Journal of Orthopaedic Surgery
https://www.readbyqxmd.com/read/28497453/trends-in-total-hip-arthroplasty-in-young-patients-results-from-a-regional-register
#3
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/28466651/t2-mapping-of-the-hip-in-asymptomatic-volunteers-with-normal-cartilage-morphology-an-analysis-of-regional-and-age-dependent-distribution
#4
Tobias Hesper, Christoph Schleich, Alexander Buchwald, Harish S Hosalkar, Gerald Antoch, Rüdiger Krauspe, Christoph Zilkens, Bernd Bittersohl
Objective To assess age-dependent and regional differences in T2* relaxation measurements in hip joint cartilage of asymptomatic volunteers at 3 T. Design Three age cohorts (cohort 1: age 20-30 years, 15 individuals; cohort 2: age 30-40 years, 17 individuals; cohort 3: age 40-50 years, 15 individuals) were enrolled. T2* values were obtained in the central and peripheral cartilage of the acetabulum and the femoral head in 7 regions (anterior to superior and posterior). Results T2* did not differ among age cohorts in acetabular cartilage (cohort 1: 24...
December 1, 2016: Cartilage
https://www.readbyqxmd.com/read/28458901/the-management-of-metastatic-radioiodine-refractory-differentiated-thyroid-cancer-requires-an-integrated-approach-including-both-directed-and-systemic-therapies
#5
Shamil D Cooray, Duncan J Topliss
SUMMARY: A 58-year-old man with metastatic radioiodine-refractory differentiated thyroid cancer (DTC) presented with left thigh and right flank numbness. He had known progressive and widespread bony metastases, for which he received palliative radiotherapy, and multiple bilateral asymptomatic pulmonary metastases. CT scan and MRI of the spine revealed metastases at right T10-L1 vertebrae with extension into the central canal and epidural disease at T10 and T11 causing cord displacement and canal stenosis but retention of spinal cord signal...
2017: Endocrinology, Diabetes & Metabolism Case Reports
https://www.readbyqxmd.com/read/28455469/management-of-massive-acetabular-bone-defects-in-revision-arthroplasty-of-the-hip-using-a-reconstruction-cage-and-porous-metal-augment
#6
T J Mäkinen, M Abolghasemian, E Watts, S G Fichman, P Kuzyk, O A Safir, A E Gross
AIMS: It may not be possible to undertake revision total hip arthroplasty (THA) in the presence of massive loss of acetabular bone stock using standard cementless hemispherical acetabular components and metal augments, as satisfactory stability cannot always be achieved. We aimed to study the outcome using a reconstruction cage and a porous metal augment in these patients. PATIENTS AND METHODS: A total of 22 acetabular revisions in 19 patients were performed using a combination of a reconstruction cage and porous metal augments...
May 2017: Bone & Joint Journal
https://www.readbyqxmd.com/read/28451616/relationship-between-the-lateral-center-edge-angle-and-3-dimensional-acetabular-coverage
#7
James D Wylie, Ashley L Kapron, Christopher L Peters, Stephen K Aoki, Travis G Maak
BACKGROUND: The lateral center-edge angle (LCEA) is an important measurement in understanding acetabular morphology and has had multiple interpretations. Misunderstanding of the LCEA and its relationship with acetabular 3-dimensional (3D) morphology may result in misdiagnosis and poor outcomes. PURPOSE: To determine the discrepancy between bone-edge and sourcil-edge LCEA measurements on anteroposterior (AP) radiographs and to determine the 3D anatomic location of the sourcil-edge and bone-edge LCEA measurements...
April 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28441511/do-patients-with-borderline-dysplasia-have-inferior-outcomes-after-hip-arthroscopic-surgery-for-femoroacetabular-impingement-compared-with-patients-with-normal-acetabular-coverage
#8
Gregory L Cvetanovich, David M Levy, Alexander E Weber, Benjamin D Kuhns, Richard C Mather, Michael J Salata, Shane J Nho
BACKGROUND: The literature contains conflicting reports regarding whether outcomes of hip arthroscopic surgery for patients with borderline dysplasia are inferior to outcomes in patients with normal acetabular coverage. PURPOSE: To assess differences in the outcomes of hip arthroscopic surgery for femoroacetabular impingement (FAI) in groups of patients with borderline dysplasia and normal coverage. STUDY DESIGN: Cohort study; Level of evidence, 3...
April 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28437549/poor-utility-of-gonadal-shielding-for-pediatric-pelvic-radiographs
#9
Mark C Lee, Jessica Lloyd, Matthew J Solomito
Plain pelvic radiographs are commonly used for a variety of pediatric orthopedic disorders. Lead shielding is typically placed over the gonads to minimize radiation exposure to these sensitive tissues. However, misplaced shielding can sabotage efforts to protect patients from excessive radiation exposure either by not covering radiosensitive tissues or by obscuring anatomic areas of interest, prompting repeat radiographic examinations. The goal of this study was to determine the incidence of misplaced shielding for pelvic radiographs obtained for pediatric orthopedic evaluation...
April 24, 2017: Orthopedics
https://www.readbyqxmd.com/read/28432692/functional-status-and-amount-of-hip-displacement-independently-affect-acetabular-dysplasia-in-cerebral-palsy
#10
Myung Ki Chung, Arif Zulkarnain, Jae Bong Lee, Byung Chae Cho, Chin Youb Chung, Kyoung Min Lee, Ki Hyuk Sung, Moon Seok Park
AIM: Acetabular dysplasia is the one of main causes of hip displacement in patients with cerebral palsy (CP). Although several studies have shown a relationship between hip displacement and acetabular dysplasia, relatively few have evaluated the association between quantitative acetabular dysplasia and related factors, such as Gross Motor Function Classification System (GMFCS) level. METHOD: We performed a morphometric analysis of the acetabulum in patients with CP using multiplanar reformation of computed tomography data...
April 22, 2017: Developmental Medicine and Child Neurology
https://www.readbyqxmd.com/read/28432505/3d-double-echo-steady-state-sequence-assessment-of-hip-joint-cartilage-and-labrum-at-3-tesla-comparative-analysis-of-magnetic-resonance-imaging-and-intraoperative-data
#11
Christoph Schleich, Tobias Hesper, Harish S Hosalkar, Fanni Rettegi, Christoph Zilkens, Rüdiger Krauspe, Gerald Antoch, Bernd Bittersohl
OBJECTIVES: To assess the diagnostic accuracy of a high-resolution, three-dimensional (3D) double-echo steady-state (DESS) sequence with radial imaging at 3 Tesla (T) for evaluating cartilage and labral alterations in the hip. METHODS: Magnetic resonance imaging (MRI) data obtained at 3 T, including radially reformatted DESS images and intraoperative data of 45 patients (mean age 42 ± 13.7 years) who underwent hip arthroscopy, were compared. The acetabular cartilage and labrum of the upper hemisphere of the acetabulum and the central femoral head cartilage were evaluated...
April 21, 2017: European Radiology
https://www.readbyqxmd.com/read/28415025/unusual-combination-of-femoral-head-dislocation-associated-acetabular-fracture-with-multipart-femoral-fractures-case-report
#12
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/28406567/evolution-of-spinopelvic-alignment-in-hominins
#13
Ella Been, Asier Gómez-Olivencia, Sara Shefi, Michalle Soudack, Markus Bastir, Alon Barash
Spinopelvic alignment refers to the interaction between pelvic orientation, spinal curvatures, and the line of gravity. In a healthy modern human, this alignment is characterized by reciprocal curves/orientation of the sacrum, lumbar lordosis, thoracic kyphosis, and cervical lordosis. In an economic sagittal posture, these curvatures keep the line of gravity close to the center of the acetabulum. The purpose of this study is to explore the spinopelvic alignment in extinct hominins. We examined spinopelvic alignment of a single representative from each of the following hominin groups: Australopithecus, Homo erectus (H...
May 2017: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/28406557/determinants-of-iliac-blade-orientation-in-anthropoid-primates
#14
Emily R Middleton, Zachariah J Winkler, Ashley S Hammond, J Michael Plavcan, Carol V Ward
Orientation of the iliac blades is a key feature that appears to distinguish extant apes from monkeys. Iliac morphology is hypothesized to reflect variation in thoracic shape that, in turn, reflects adaptations for shoulder and forearm function in anthropoids. Iliac orientation is traditionally measured relative to the acetabulum, whereas functional explanations pertain to its orientation relative to the cardinal anatomical planes. We investigated iliac orientation relative to a median plane using digital models of hipbones registered to landmark data from articulated pelves...
May 2017: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/28399325/influence-of-surgical-approach-on-pelvic-lift-in-hip-arthroplasty-during-cup-insertion
#15
Steffen Brodt, Christoph Windisch, Linda Krakow, Dimitri Nowack, Georg Matziolis
The position of the acetabular cup is a major factor in the long-term outcome of total hip arthroplasty (THA). Malpositioning of the acetabular cup frequently has been reported with the use of a minimally invasive implantation technique. It remains unclear whether the limited visibility or the increased retractor traction and thus tilting of the pelvis during cup implantation is the cause. This study investigated the influence of iatrogenically related pelvic lift using an anterolateral minimally invasive THA technique...
April 11, 2017: Orthopedics
https://www.readbyqxmd.com/read/28392637/long-term-results-of-impaction-bone-grafting-using-a-synthetic-graft-apapore-in-revision-hip-surgery
#16
V Kumar, M Ricks, S Aboul-Enin, D G Dunlop
INTRODUCTION: Impaction Bone grafting (IBG) in Revision THR is challenging and places demands on allograft stores. Identifying a potential synthetic replacement that works in the longer term was the aim of this study. METHODS: We retrospectively reviewed 21 sequential patients who had undergone revision THR using IBG. They were randomised to receive either combined allograft and synthetic graft or Allograft alone. Among the surviving 15 patients, there were total of 25 procedures were carried out...
June 2017: Journal of Orthopaedics
https://www.readbyqxmd.com/read/28391815/semi-automatic-segmentation-of-femur-based-on-harmonic-barrier
#17
Zheng Zou, Sheng-Hui Liao, San-Ding Luo, Qing Liu, Shi-Jian Liu
BACKGROUND AND OBJECTIVE: Segmentation of the femur from the hip joint in computed tomography (CT) is an important preliminary step in hip surgery planning and simulation. However, this is a time-consuming and challenging task due to the weak boundary, the varying topology of the hip joint, and the extremely narrow or blurred space between the femoral head and the acetabulum. To address these problems, this study proposed a semi-automatic segmentation framework based on harmonic fields for accurate segmentation...
May 2017: Computer Methods and Programs in Biomedicine
https://www.readbyqxmd.com/read/28389135/a-contemporary-definition-of-hip-dysplasia-and-structural-instability-toward-a-comprehensive-classification-for-acetabular-dysplasia
#18
Geoffrey P Wilkin, Mazen M Ibrahim, Kevin M Smit, Paul E Beaulé
Hip dysplasia has long been known to be a risk factor for pain and degenerative changes in the hip joint. The diagnosis of dysplasia has historically been based on assessments of acetabular anatomy on the anteroposterior pelvic radiograph, most commonly the lateral center-edge angle. Recent advances in imaging of the dysplastic hip with computerized tomography scans have demonstrated that hip dysplasia is in fact a 3-dimensional (D) deformity of the acetabulum and that multiple patterns of hip instability exist that may not be completely assessed on 2D imaging...
March 3, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28385941/patients-undergoing-surgical-hip-dislocation-for-the-treatment-of-acetabular-fractures-show-favourable-long-term-outcome
#19
P C Haefeli, G S Marecek, M J B Keel, K A Siebenrock, M Tannast
AIMS: The aims of this study were to determine the cumulative ten-year survivorship of hips treated for acetabular fractures using surgical hip dislocation and to identify factors predictive of an unfavourable outcome. PATIENTS AND METHODS: We followed up 60 consecutive patients (61 hips; mean age 36.3 years, standard deviation (sd) 15) who underwent open reduction and internal fixation for a displaced fracture of the acetabulum (24 posterior wall, 18 transverse and posterior wall, ten transverse, and nine others) with a mean follow-up of 12...
April 2017: Bone & Joint Journal
https://www.readbyqxmd.com/read/28384153/cartilage-formation-in-the-pelvic-skeleton-during-the-embryonic-and-early-fetal-period
#20
Misaki Okumura, Aoi Ishikawa, Tomoki Aoyama, Shigehito Yamada, Chigako Uwabe, Hirohiko Imai, Tetsuya Matsuda, Akio Yoneyama, Tohoru Takeda, Tetsuya Takakuwa
The pelvic skeleton is formed via endochondral ossification. However, it is not known how the normal cartilage is formed before ossification occurs. Furthermore, the overall timeline of cartilage formation and the morphology of the cartilage in the pelvis are unclear. In this study, cartilage formation in the pelvic skeletons of 25 human fetuses (crown-rump length [CRL] = 11.9-75.0 mm) was observed using phase-contrast computed tomography and 7T magnetic resonance imaging. The chondrification center of the ilium, ischium, and pubis first appeared simultaneously at Carnegie stage (CS) 18, was located around the acetabulum, and grew radially in the later stage...
2017: PloS One
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