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Anatomy of the hip

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https://www.readbyqxmd.com/read/28437496/novel-solution-for-massive-glenoid-defects-in-shoulder-arthroplasty-a-patient-specific-glenoid-vault-reconstruction-system
#1
David M Dines, Lawrence Gulotta, Edward V Craig, Joshua S Dines
Complex glenoid deformities present the most difficult challenges in shoulder arthroplasty. These deformities may be caused by severe degenerative or congenital deformity, posttraumatic anatomy, tumor, or, in most cases, bone loss after glenoid failure in anatomical total shoulder arthroplasty. Methods of treating severe bone loss have included inlay and onlay bone-graft options with augmented fixation and, in severe cases, salvage hemiarthroplasty with limited goal expectations. Unfortunately, none of these methods has provided consistently satisfactory reproducible results...
March 2017: American Journal of Orthopedics
https://www.readbyqxmd.com/read/28430719/intertrochanteric-osteotomy-for-femoral-neck-non-union-does-undercorrection-result-in-an-acceptable-rate-of-femoral-neck-union
#2
Brandon J Yuan, David W Shearer, David P Barei, Sean E Nork
OBJECTIVES: To analyze the radiographic outcomes of intertrochanteric osteotomy for the treatment of femoral neck non-union with "undercorrection" of the Pauwels' angle and relative preservation of the proximal femoral anatomy. DESIGN: Retrospective cohort study SETTING:: Level-1 trauma center PATIENTS:: Thirty-two patients with established femoral neck non-unions that had been treated with intertrochanteric osteotomy were retrospectively identified through Current Procedural Terminology (CPT) codes...
April 18, 2017: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/28418950/sacral-fatigue-fracture-in-a-military-recruit
#3
Matthew D Burgess, Mickaila J Johnston, Eugene D Silverman
A 19-year-old male military recruit presented with 3 weeks of persistent left hip and groin pain after abnormally twisting his hip during a hike. Initial radiographs were interpreted as negative. He subsequently underwent a bone scan which revealed linear left sacral uptake along or paralleling the sacroiliac joint. Differential diagnostic considerations included unilateral sacroiliitis and sacral fracture. SPECT/CT was performed which confirmed left sacral fatigue stress fracture. Transitional lumbosacral anatomy was evident on radiographs with pseudoarticulation of the transitional left S1 transverse process with the sacrum...
April 17, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28418575/effects-of-previous-osteotomy-on-outcome-of-hip-resurfacing-arthroplasty
#4
Harlan Cabot Amstutz, Michel Jean Le Duff
The effect of previous conservative surgeries on the outcome of metal-on-metal hip resurfacing arthroplasty (HRA) has not been studied. This study compared postoperative clinical scores and survivorship results of hips with and without previous osteotomies in a population of patients who underwent HRA. A total of 1101 patients (1375 hips) with a mean age of 51.3 years at the time of surgery underwent HRA at a single center. Sixty-nine patients had undergone prior surgery on the operated hip including 14 osteotomies (1 pelvic, 6 femoral, and 7 combined pelvic and femoral osteotomies)...
April 18, 2017: Orthopedics
https://www.readbyqxmd.com/read/28401279/current-concepts-in-the-diagnosis-and-management-of-extra-articular-hip-impingement-syndromes
#5
REVIEW
Naoki Nakano, Grace Yip, Vikas Khanduja
PURPOSE: Extra-articular hip impingement syndromes encompass a group of conditions that have previously been an unrecognised source of pain in the hip and on occasion been associated with intra-articular hip impingement as well. As arthroscopic techniques for the hip continue to evolve, the importance of these conditions has been recognised recently and now form an important part of the differential of an individual presenting with hip pain. The aim of this article, therefore, is to provide the reader with an evidence-based and comprehensive update of these syndromes...
April 11, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28391517/preoperative-digital-planning-versus-postoperative-outcomes-in-total-hip-arthroplasty-using-a-calcar-guided-short-stem-frequent-valgization-can-be-avoided
#6
Karl Philipp Kutzner, Joachim Pfeil, Mark Predrag Kovacevic
INTRODUCTION: Modern total hip arthroplasty is largely dependent on the successful preservation of hip geometry. Thus, a successful implementation of the preoperative planning is of great importance. The present study evaluates the accuracy of anatomic hip reconstruction predicted by 2D digital planning using a calcar-guided short stem of the newest generation. METHODS: A calcar-guided short stem was implanted in 109 patients in combination with a cementless cup using the modified anterolateral approach...
April 8, 2017: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/28389135/a-contemporary-definition-of-hip-dysplasia-and-structural-instability-toward-a-comprehensive-classification-for-acetabular-dysplasia
#7
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/28385931/total-hip-arthroplasty-using-a-monobloc-cementless-femoral-stem-for-patients-with-childhood-perthes-disease
#8
K H Lee, W-L Jo, Y C Ha, Y K Lee, S B Goodman, K H Koo
AIMS: Modular or custom-made femoral components have been preferred for total hip arthroplasty (THA) in patients with a history of Perthes' disease because of the distortion in the anatomy of the proximal femur. However, it has not been established whether a monobloc cementless stem will fit the distorted proximal femur or whether the results of the procedure are satisfactory in this group of patients. PATIENTS AND METHODS: We reviewed 68 consecutive patients who had undergone THA for childhood Perthes' disease between June 2003 and December 2008...
April 2017: Bone & Joint Journal
https://www.readbyqxmd.com/read/28379908/effects-of-long-term-high-load-exercise-on-the-anatomy-of-the-hip-joints-a-preliminary-report
#9
Yawei Song, Xiyuan Zhang, Ke Rong
The aim of this study was to assess the impact of different sports on hip joint anatomic parameters in athletes. This was a cross-sectional study of eight male trampolinists, eight male weightlifters, and eight male volunteers enrolled in July 2014. Hip joint anatomic parameters were measured from plain radiographs taken at the level of the lesser trochanter center. Data were compared between groups using the χ-test or one-way analysis of variance with the Bonferroni post-hoc test. There were no significant differences among groups in age, height, or weight...
April 4, 2017: Journal of Pediatric Orthopedics. Part B
https://www.readbyqxmd.com/read/28373141/spine-hip-relations-add-understandings-to-the-pathophysiology-of-femoro-acetabular-impingement-a-systematic-review
#10
REVIEW
C Rivière, A Hardijzer, J-Y Lazennec, P Beaulé, S Muirhead-Allwood, J Cobb
Relationship between hip pathoanatomy and symptomatic FAI has been reported to be weak. This is explained by the reciprocal interaction between proximal femur and acetabular anatomies, but potentially also by the individual spine-hip relations (SHR). The key-answer for a complete understanding of the pathophysiology of FAI might lie in the comprehension of the SHRs, which have not yet been fully addressed. Therefore we conducted a systematic review to answer the subsequent questions: Is there any evidence of a relationship between FAI and (1) sagittal pelvic kinematics, (2) pelvic incidence, and (3) types of SHRs? A systematic review of the existing literature utilizing PubMed and Google search engines was performed in December 2016...
April 1, 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/28372341/ultrasonography-of-the-pediatric-hip-and-spine
#11
Yeo Ryang Kang, Joonbum Koo
Ultrasonography (US) is a useful screening method for the diagnosis of developmental dysplasia of the hip (DDH) and congenital spinal anomalies in infants. In addition, US is a useful, noninvasive imaging modality for the diagnosis of transient synovitis in children. The early detection of DDH leads to a better prognosis without surgical intervention. Moreover, spinal US allows the detection of congenital malformations and can also demonstrate normal anatomy and normal variants that may resemble disorders. Therefore, radiologists should be familiar with the sonographic anatomy of the normal infant hip, scanning and measurement techniques for DDH, the US features of transient synovitis in children, spinal US techniques, and the US features of normal anatomical structures, normal variants, and congenital spinal anomalies...
February 22, 2017: Ultrasonography
https://www.readbyqxmd.com/read/28347158/effective-dose-in-low-dose-ct-compared-with-radiography-for-templating-of-total-hip-arthroplasty
#12
Mats Geijer, Gustav Rundgren, Lars Weber, Gunnar Flivik
Background Recently, total hip arthroplasty (THA) has come to focus on restoration of individual anatomy including femoral neck anteversion and global offset (femoral and acetabular offset). Three-dimensional (3D) computed tomography (CT) data could provide a better basis for preoperative templating. The use of CT has been hampered by high radiation dose. Purpose To evaluate the effective dose used in pelvis and hip CT for THA templating. Material and Methods CT data from two clinical trials of THA were evaluated for CT scan length and volume CT dose index (CTDIvol)...
January 1, 2017: Acta Radiologica
https://www.readbyqxmd.com/read/28322718/pseudoaneurysm-of-a-branch-of-the-femoral-circumflex-artery-as-a-complication-of-revision-arthroscopic-release-of-the-iliopsoas-tendon
#13
Naoki Nakano, Laughter Lisenda, Vikas Khanduja
Treatment of painful internal snapping hip via arthroscopic release of the iliopsoas tendon is becoming the preferred option over open techniques because of the benefits of minimal dissection and fewer complications. However, complications do occur with arthroscopic techniques as well. We present the case of a 33-year-old woman who presented with painful internal snapping of her right hip and underwent arthroscopic release of the iliopsoas tendon. Following the procedure she continued to complain of pain in her groin and was therefore investigated further with a magnetic resonance imaging (MRI) which revealed a swelling near the femoral circumflex vessels...
2017: SICOT-J
https://www.readbyqxmd.com/read/28321940/anatomy-of-psoas-muscle-innervation-cadaveric-study
#14
Mark A Mahan, Luke E Sanders, Jian Guan, Andrew T Dailey, William Taylor, David A Morton
Hip flexion weakness is relatively common after lateral transpsoas surgery. Persistent weakness may result from injury to the innervation of the psoas major muscles (PMMs); however, anatomical texts have conflicting descriptions of this innervation, and the branching pattern of the nerves within the psoas major, particularly relative to vertebral anatomy, has not been described. The authors dissected human cadavers to describe the branching pattern of nerves supplying the PMMs. Sixteen embalmed cadavers were dissected, and the fine branching pattern of the innervation to the PMM was studied in 24 specimens...
March 21, 2017: Clinical Anatomy
https://www.readbyqxmd.com/read/28320887/hip-region-muscular-dystrophy-and-emergence-of-motor-deficits-in-dysferlin-deficient-bla-j-mice
#15
Nadia Nagy, Randal J Nonneman, Telmo Llanga, Catherine F Dial, Natallia V Riddick, Tom Hampton, Sheryl S Moy, Kimmo K Lehtimäki, Toni Ahtoniemi, Jukka Puoliväli, Hillarie Windish, Douglas Albrecht, Isabelle Richard, Matthew L Hirsch
The identification of a dysferlin-deficient animal model that accurately displays both the physiological and behavior aspects of human dysferlinopathy is critical for the evaluation of potential therapeutics. Disease progression in dysferlin-deficient mice is relatively mild, compared to the debilitating human disease which manifests in impairment of particular motor functions. Since there are no other known models of dysferlinopathy in other species, locomotor proficiency and muscular anatomy through MRI (both lower leg and hip region) were evaluated in dysferlin-deficient B6...
March 2017: Physiological Reports
https://www.readbyqxmd.com/read/28316962/wiring-techniques-for-the-fixation-of-trochanteric-fragments-during-bipolar-hemiarthroplasty-for-femoral-intertrochanteric-fracture-clinical-study-and-technical-note
#16
Joong-Myung Lee, Yongsuk Cho, Junhyun Kim, Dong-Won Kim
PURPOSE: Femoral intertrochanteric fractures are common in the elderly. Appropriate surgical fixation of trochanteric fracture fragments can restore normal anatomical structure and ambulation, and can aid in the recovery of biomechanical function of the hip. We evaluated clinical outcomes of bipolar hemiarthroplasty using a wiring technique for trochanteric fracture fragment fixation. MATERIALS AND METHODS: From September 2006 to February 2015, a total of 260 cases underwent simultaneous bipolar hemiarthroplasty and wire fixation...
March 2017: Hip & Pelvis
https://www.readbyqxmd.com/read/28302462/the-impact-of-mechanical-and-restricted-kinematic-alignment-on-knee-anatomy-in-total-knee-arthroplasty
#17
Abdulaziz M Almaawi, Jonathan R B Hutt, Vincent Masse, Martin Lavigne, Pascal-Andre Vendittoli
BACKGROUND: Total knee arthroplasty (TKA), aiming at neutral mechanical alignment (MA), inevitably modifies the patient's native knee anatomy. Another option is kinematic alignment (KA), which aims to restore the original anatomy of the knee. The aim of this study was to evaluate the variations in lower limb anatomy of a patient population scheduled for TKA, and to assess the use of a restricted KA TKA protocol and compare the resulting anatomic modifications with the standard MA technique...
February 20, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28297184/the-human-pelvis-variation-in-structure-and-function-during-gait
#18
Cara L Lewis, Natalie M Laudicina, Anne Khuu, Kari L Loverro
The shift to habitual bipedalism 4-6 million years ago in the hominin lineage created a morphologically and functionally different human pelvis compared to our closest living relatives, the chimpanzees. Evolutionary changes to the shape of the pelvis were necessary for the transition to habitual bipedalism in humans. These changes in the bony anatomy resulted in an altered role of muscle function, influencing bipedal gait. Additionally, there are normal sex-specific variations in the pelvis as well as abnormal variations in the acetabulum...
April 2017: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/28297175/pelvic-breadth-and-locomotor-kinematics-in-human-evolution
#19
Laura Tobias Gruss, Richard Gruss, Daniel Schmitt
A broad pelvis is characteristic of most, if not all, pre-modern hominins. In at least some early australopithecines, most notably the female Australopithecus afarensis specimen known as "Lucy," it is very broad and coupled with very short lower limbs. In 1991, Rak suggested that Lucy's pelvic anatomy improved locomotor efficiency by increasing stride length through rotation of the wide pelvis in the axial plane. Compared to lengthening strides by increasing flexion and extension at the hips, this mechanism could avoid potentially costly excessive vertical oscillations of the body's center of mass (COM)...
April 2017: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/28282642/shape-aware-surface-reconstruction-from-sparse-3d-point-clouds
#20
Florian Bernard, Luis Salamanca, Johan Thunberg, Alexander Tack, Dennis Jentsch, Hans Lamecker, Stefan Zachow, Frank Hertel, Jorge Goncalves, Peter Gemmar
The reconstruction of an object's shape or surface from a set of 3D points plays an important role in medical image analysis, e.g. in anatomy reconstruction from tomographic measurements or in the process of aligning intra-operative navigation and preoperative planning data. In such scenarios, one usually has to deal with sparse data, which significantly aggravates the problem of reconstruction. However, medical applications often provide contextual information about the 3D point data that allow to incorporate prior knowledge about the shape that is to be reconstructed...
February 14, 2017: Medical Image Analysis
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