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Hip Anatomy

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https://www.readbyqxmd.com/read/28210820/update-review-and-clinical-presentation-in-adult-inferior-dislocation-of-hip
#1
REVIEW
Kevin Syam, Balaji Saibaba, Sameer Aggarwal, Sivaswaminathan Santhanam, Gopinath Palanisamy
Inferior dislocation of the hip is a rare clinical entity, wherein closed reduction maneuver could be challenging, especially if the attending surgeon is not familiar with the specific anatomy associated with this injury. Due to the rarity of this type of injury, large case series are lacking in the literature; hence, case reports form the major source of our knowledge regarding the clinical presentation and management. An extensive literature search revealed a change in age group presenting with this specific injury, with a male predilection...
February 16, 2017: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/28202208/survivorship-analysis-of-eighty-revised-hip-arthroplasties-with-the-impaction-grafting-technique-using-whole-femoral-head-allografts-with-the-articular-cartilage
#2
Ahmed Fadulelmola, Efstathios Drampalos, John Hodgkinson, Mukesh Hemmady
BACKGROUND: Acetabular impaction bone grafting aims to restore anatomy in hip revision surgery. This is an effective but expensive and time-consuming technique. Usually, the articular cartilage is removed from the femoral head allograft. We aimed to reproduce the same results retaining the cartilage of the allograft. METHODS: Eighty acetabular revisions using impacted morselized bone graft retaining the articular cartilage and a cemented cup were studied retrospectively...
January 24, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28194709/high-survivorship-and-little-osteoarthritis-at-10-year-followup-in-scfe-patients-treated-with-a-modified-dunn-procedure
#3
Kai Ziebarth, Milan Milosevic, Till D Lerch, Simon D Steppacher, Theddy Slongo, Klaus A Siebenrock
BACKGROUND: The modified Dunn procedure has the potential to restore the anatomy in hips with slipped capital femoral epiphyses (SCFE) while protecting the blood supply to the femoral head and minimizing secondary impingement deformities. However, there is controversy about the risks associated with the procedure and mid- to long-term data on clinical outcomes, reoperations, and complications are sparse. QUESTIONS/PURPOSES: Among patients treated with a modified Dunn procedure for SCFE, we report on (1) hip pain and function as measured by the Merle d'Aubigné and Postel score, Drehmann sign, anterior impingement test, limp, and ROM; (2) the cumulative survivorship at minimum 10-year followup with endpoints of osteoarthritis (OA) progression (at least one Tönnis grade), subsequent THA, or a Merle d'Aubigné and Postel score < 15; (3) radiographic anatomy of the proximal femur measured by slip angle, α angle, Klein line, and sphericity index; and (4) the risk of subsequent surgery and complications...
February 13, 2017: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/28184362/uncemented-total-hip-replacement-after-two-years-of-neglected-hip-dislocation-with-fracture-of-posterior-column-and-wall-of-the-acetabulum
#4
Sundaresh Dc, Sharath K Ramanath, Amit Grover, Daksh Gadi
INTRODUCTION: Posterior hip dislocation of the hip with acetabular fracture is a challenging problem to treat. Such dislocations are associated with avascular necrosis of the femoral head if neglected. Managing such conditions with total hip replacement (THR) is very difficult because of associated altered anatomy. CASE PRESENTATION: We hereby report a two-year neglected hip dislocation with associated acetabular fracture successfully treated with uncemented THR...
November 2016: Trauma Monthly
https://www.readbyqxmd.com/read/28176673/surgical-hip-dislocation-in-treatment-of-slipped-capital-femoral-epiphysis
#5
Mohammed Elmarghany, Tarek M Abd El-Ghaffar, Mahmoud Seddik, Ahmed Akar, Yousef Gad, Eissa Ragheb, Alessandro Aprato, Alessandro Massè
BACKGROUND: Most surgeons advocate in situ fixation of the slipped epiphysis with acceptance of any persistent deformity in the proximal femur [Aronsson DD, Loder RT, Breur GJ, Weinstein SL (2006) Slipped capital femoral epiphysis: current concepts. J Am Acad Orthop Surg 14, 666-679]. This residual deformity can lead to osteoarthritis due to femoroacetabular cam impingement (FAI) [Leunig M, Slongo T, Ganz R (2008) Subcapital realignment in slipped capital femoral epiphysis: surgical hip dislocation and trimming of the stable trochanter to protect the perfusion of the epiphysis...
2017: SICOT-J
https://www.readbyqxmd.com/read/28168640/3d-computer-graphical-anatomy-study-of-the-femur-a-basis-for-a-new-nail-design
#6
Beat Schmutz, Stanley Kmiec, Martin E Wullschleger, Martin Altmann, Michael Schuetz
BACKGROUND: Current intramedullary nails with a radius of curvature (ROC) of 1500-2000 mm sometimes cause distal anterior cortical encroachment. Furthermore, clinical data indicate that the proximal nail end is too long for some Asian patients. The objective of our study was to develop a comprehensive 3D measurement protocol that measures both the anatomy of the canal and the proximal region. The protocol was used to obtain measurements from Caucasian and Asian (Japanese and Thai) specimens...
February 6, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28168060/3d-printing-aids-acetabular-reconstruction-in-complex-revision-hip-arthroplasty
#7
Andrew J Hughes, Cathal DeBuitleir, Philip Soden, Brian O'Donnchadha, Anthony Tansey, Ali Abdulkarim, Colm McMahon, Conor J Hurson
Revision hip arthroplasty requires comprehensive appreciation of abnormal bony anatomy. Advances in radiology and manufacturing technology have made three-dimensional (3D) representation of osseous anatomy obtainable, which provide visual and tactile feedback. Such life-size 3D models were manufactured from computed tomography scans of three hip joints in two patients. The first patient had undergone multiple previous hip arthroplasties for bilateral hip infections, resulting in right-sided pelvic discontinuity and a severe left-sided posterosuperior acetabular deficiency...
2017: Advances in Orthopedics
https://www.readbyqxmd.com/read/28166057/proton-therapy-of-prostate-cancer-by-anterior-oblique-beams-implications-of-setup-and-anatomy-variations
#8
M Moteabbed, A Trofimov, G C Sharp, Y Wang, A L Zietman, J A Efstathiou, H-M Lu
Proton therapy of prostate by anterior beams could offer an attractive option for treating patients with hip prosthesis and limiting the high-dose exposure to the rectum. We investigated the impact of setup and anatomy variations on the anterior-oblique (AO) proton plan dose, and strategies to manage these effects via range verification and adaptive delivery. Ten patients treated by bilateral (BL) passive-scattering proton therapy (79.2 Gy in 44 fractions) who underwent weekly verification CT scans were selected...
March 7, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/28157619/effects-of-hip-joint-transverse-plane-range-of-motion-with-a-modeled-effusion-and-capsular-tear-a-cadaveric-study
#9
Casey Hebert, Mark P Smyth, Erik Woodard, Collin C Bills, Marc J Mihalko, William M Mihalko
BACKGROUND: Multiple factors contribute to range of motion of the hip joint in the transverse plane: bony anatomy, hip capsule, corresponding ligaments, articular labrum, ligamentum teres, and negative intra-articular pressure. We hypothesized that violation of the negative pressure of the hip and simulation of an effusion would increase range of motion in the transverse plane in a cadaver model. METHODS: Ten hip specimens were obtained and dissected with the femur and iliac wing mounted in a custom joint-testing rig in neutral position...
January 21, 2017: Clinical Biomechanics
https://www.readbyqxmd.com/read/28154993/outcome-of-extensive-varus-and-valgus-stem-alignment-in-short-stem-tha-clinical-and-radiological-analysis-using-ebra-fca
#10
Karl Philipp Kutzner, Tobias Freitag, Stefanie Donner, Mark Predrag Kovacevic, Ralf Bieger
INTRODUCTION: The principle of implanting a calcar-guided short stem consists of an individual alignment alongside the medial calcar providing the ability of reconstructing varus and valgus anatomy in a great variety. However, still, there are broad concerns about the safety of extensive varus and valgus positioning in regard to stability, bony alterations, and periprosthetic fractures. MATERIALS AND METHODS: 216 total hip arthroplasties using a calcar-guided short stem (optimys, Mathys Ltd...
February 2, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28149735/dynamic-hip-examination-for-assessment-of-impingement-during-hip-arthroscopy
#11
Renato Locks, Jorge Chahla, Justin J Mitchell, Eduardo Soares, Marc J Philippon
Arthroscopic procedures for treatment of hip pathology are growing exponentially as a result of continued improvements in the understanding of intra- and extra-articular hip anatomy and technological advancements in instrumentation. Nevertheless, it has been reported that the main cause of revision hip arthroscopy is related to a suboptimal intrasurgical management of the abnormal morphology in femoroacetabular impingement (FAI). Under-resection, over-resection, and in some cases combined under-resection and over-resection at different locations of the cam lesion at the femoral head-neck junction may lead to poor outcomes as a result of residual impingement or the iatrogenic creation of structural instability...
December 2016: Arthroscopy Techniques
https://www.readbyqxmd.com/read/28116505/total-hip-arthroplasty-after-failed-treatment-of-proximal-femur-fracture
#12
Tomonori Tetsunaga, Kazuo Fujiwara, Hirosuke Endo, Tomoyuki Noda, Tomoko Tetsunaga, Toru Sato, Naofumi Shiota, Toshifumi Ozaki
INTRODUCTION: Total hip arthroplasty (THA) is a good option as a salvage procedure after failed treatment of proximal femur fracture. The anatomy of the proximal femur, however, makes this surgery complicated and challenging. The purpose of this study was to evaluate the radiographic and clinical outcomes of THA after failed treatment of proximal femur fractures. MATERIALS AND METHODS: We retrospectively analysed 50 consecutive THAs (42 women, 8 men; mean age 77 years) after failed treatment of a proximal femur fracture...
January 23, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28111694/progressive-femoroacetabular-impingement-after-complete-excision-of-osteoid-osteoma-in-adolescents-a-report-of-two-cases
#13
Woo Young Jang, Soon Hyuck Lee, Il Youp Cho
This article highlights that the long-term and serial follow-up of adolescents with osteoid osteoma should be considered, even after complete excision of the nidus owing to the possibility of the delayed onset or progression of femur head and neck deformities or osteoarthritis. It is important to recognize the sequelae of osteoid osteomas, such as bone edema and new bone formation, which can alter the normal anatomy of the proximal femur. We report two cases of osteoid osteoma in the proximal femur, which showed progressive hypertrophy of the femoral neck after excision of the nidus and subsequent cam-type femoroacetabular impingement (FAI), requiring additional osteochondroplasty procedures...
January 22, 2017: Skeletal Radiology
https://www.readbyqxmd.com/read/28102157/sexual-dimorphism-of-acetabular-anatomy-based-on-three-dimensional-computed-tomography-image-of-pelvises
#14
Bartosz Musielak, Michał Rychlik, Marek Jóźwiak
BACKGROUND: The study aimed to compare sex differences in the morphology and spatial orientation of pelvic acetabula to advance the understanding of hip anatomy. MATERIAL AND METHODS: The study was based on three-dimensional reconstructions of computed tomography images of 50 female and 50 male acetabula. The images were used for spatial analysis of hip acetabula relative to the base of the sacral bone as the plane of reference. Statistical analysis was performed to compare angles relevant to the actual axis of the acetabulum (inclination angle, anteversion angle, tilt angle) as well as the volume and inner surface area of the acetabulum...
October 28, 2016: Ortopedia, Traumatologia, Rehabilitacja
https://www.readbyqxmd.com/read/28094482/real-time-ultrasound-guided-spinal-anesthesia-in-patients-with-predicted-difficult-anatomy
#15
Hesham Elsharkawy, Ankit Maheshwari, Rovnat Babazade, Anahi Perlas, Sherif Zaky, Loran M Soliman
BACKGROUND: There are limited reports of lumbar neuraxial blocks using real-time ultrasound in patients with predicted difficulties. We compared the number of attempts to perform spinal anesthesia using real time ultrasound guidance versus landmark technique in patients meeting predefined criteria for difficult spinal anesthesia. We also compared procedure time, block success, patient satisfaction and difficulty scores between groups. METHODS: Following institutional review board approval patients scheduled for total hip or knee arthroplasty with expected difficulty to perform spinal anesthesia were included...
January 17, 2017: Minerva Anestesiologica
https://www.readbyqxmd.com/read/28066745/deep-gluteal-space-problems-piriformis-syndrome-ischiofemoral-impingement-and-sciatic-nerve-release
#16
Luis Perez Carro, Moises Fernandez Hernando, Luis Cerezal, Ivan Saenz Navarro, Ana Alfonso Fernandez, Alexander Ortiz Castillo
BACKGROUND: Deep gluteal syndrome (DGS) is an underdiagnosed entity characterized by pain and/or dysesthesias in the buttock area, hip or posterior thigh and/or radicular pain due to a non-discogenic sciatic nerve entrapment in the subgluteal space. Multiple pathologies have been incorporated in this all-included "piriformis syndrome", a term that has nothing to do with the presence of fibrous bands, obturator internus/gemellus syndrome, quadratus femoris/ischiofemoral pathology, hamstring conditions, gluteal disorders and orthopedic causes...
July 2016: Muscles, Ligaments and Tendons Journal
https://www.readbyqxmd.com/read/28066740/microinstability-of-the-hip-a-previously-unrecognized-pathology
#17
Ioanna Bolia, Jorge Chahla, Renato Locks, Karen Briggs, Marc J Philippon
BACKGROUND: Hip microinstability is an established diagnosis; however, its occurrence is still debated by many physicians. Diagnosis of hip microinstability is often challenging, due to a lack of specific signs or symptoms, and patients may remain undiagnosed for long periods. This may lead to early manifestation of degenerative joint disease. Consequently, careful patient and family history must be obtained and diagnostic imaging should follow. After a thorough clinical evaluation of the patient with suspected hip microinstability, the physician should focus on how to improve symptoms and functionality in daily and sports activities...
July 2016: Muscles, Ligaments and Tendons Journal
https://www.readbyqxmd.com/read/28066735/arthroscopic-approach-and-anatomy-of-the-hip
#18
Alessandro Aprato, Matteo Giachino, Alessandro Masse
BACKGROUND: Hip arthroscopy has gained popularity among the orthopedic community and a precise assessment of indications, techniques and results is constantly brought on. METHODS: In this chapter the principal standard entry portals for central and peripheral compartment are discussed. The description starts from the superficial landmarks for portals placement and continues with the deep layers. For each entry point an illustration of the main structures encountered is provided and the principal structures at risk for different portals are accurately examined...
July 2016: Muscles, Ligaments and Tendons Journal
https://www.readbyqxmd.com/read/28066732/conservative-management-of-tendinopathies-around-hip
#19
REVIEW
Antonio Frizziero, Filippo Vittadini, Andrea Pignataro, Giuseppe Gasparre, Carlo Biz, Pietro Ruggieri, Stefano Masiero
BACKGROUND: The anatomy of hip is widely complex and several anatomical structures interact and contribute to its functioning. For position and role, hip and the surrounding tendons, which have their insertion around, are overstressed and often overloaded, especially in athletes. This could lead to the developing of several tendinopathies, among which the differential diagnosis is often complicated. Many conservative treatments are used in clinical practice, while actually, no defined conservative protocol is recommended...
July 2016: Muscles, Ligaments and Tendons Journal
https://www.readbyqxmd.com/read/28066731/imaging-of-the-hip-a-systematic-approach-to-the-young-adult-hip
#20
Sara Muñoz Chiamil, Claudia Astudillo Abarca
BACKGROUND: Great advances in knowledge and understanding of the biomechanics of the hip, both in arthroscopic procedures and imaging techniques, have expanded and improved the diagnosis of pathologies of the young adult hip. The anatomy of the hip joint is complex due to its morphology and orientation. The inter-pretation of the images requires deep knowledge of the osseous and soft tissue anatomy: muscles, tendons, ligaments, vessels and nerves. There are multiple imaging tools. Diagnostic techniques have different utilities and often are complementary...
July 2016: Muscles, Ligaments and Tendons Journal
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