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acetabular femoral impingment

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https://www.readbyqxmd.com/read/28290757/hip-musculoskeletal-conditions-and-associated-factors-that-influence-squat-performance-a-systematic-review
#1
Scott W Cheatham, Kyle R Stull, Mike Fantigrassi, Ian Montel
CONTEXT: The squat is a fundamental movement for weight lifting and sports performance. Both unilateral and bilateral squats are also used to assess transitional and dynamic lower extremity control. Common lower extremity conditions can have an influence on squat performance. Of interest, are the effects of hip musculoskeletal conditions and associated factors such as hip muscle pain, fatigue, and tightness on squat performance. Currently, there has been no appraisal of the evidence regarding the association of these conditions and associated factors on squat performance...
March 14, 2017: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/28286463/range-of-movement-for-impingement-and-dislocation-avoidance-in-total-hip-replacement-predicted-by-finite-element-model
#2
Laura Ezquerra, María Paz Quilez, María Ángeles Pérez, Jorge Albareda, Belén Seral
Dislocation is a serious complication in total hip replacement (THR). An inadequate range of movement (ROM) can lead to impingement of the prosthesis neck on the acetabular cup; furthermore, the initiation of subluxation and dislocation may occur. The objective of this study was to generate a parametric three-dimensional finite element (FE) model capable of predicting the dislocation stability for various positions of the prosthetic head, neck, and cup under various activities. Three femoral head sizes (28, 32, and 36 mm) were simulated...
2017: Journal of Medical and Biological Engineering
https://www.readbyqxmd.com/read/28259463/properties-of-the-cartilage-layer-from-the-cam-type-hip-impingement-deformity
#3
Andrew D Speirs, Paul E Beaulé, Adrian Huang, Hanspeter Frei
Femoro-acetabular impingement (FAI) is associated with significant acetabular cartilage damage and degenerative arthritis. To understand the contact stress and thus biomechanical mechanisms that may contribute to degeneration, the material behaviour of the cartilage layer is required. The objective of this study is to determine the fibril-reinforced poroelastic properties and composition of cartilage from cam deformities and to compare to those of normal cartilage. Patients undergoing surgical treatment of a symptomatic cam FAI deformity were recruited from the clinical practice of one of the authors...
February 21, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/28224071/arthroscopic-fixation-of-os-acetabuli-technique-when-to-resect-and-when-to-fix
#4
Cecilia Pascual-Garrido, John B Schrock, Justin J Mitchell, Gaston Camino Willhuber, Omer Mei-Dan, Jorge Chahla
Acetabular rim fractures, or os acetabuli, are hypothesized to occur as a result of an unfused ossification center or a stress fracture from repetitive impingement of an abnormally shaped femoral neck against the acetabular rim. When treated surgically, these fragments are typically excised as part of the correction for femoroacetabular impingement. However, in some patients, removal of these fragments can create symptoms of gross instability or microinstability of the hip. In these cases, internal fixation of the fragment is necessary...
October 2016: Arthroscopy Techniques
https://www.readbyqxmd.com/read/28180913/-surgical-hip-dislocation-current-status-in-the-treatment-of-femoral-acetabular-impingement
#5
F Sitterlee, S Kirschbaum, C Perka, M Müller
INTRODUCTION: Surgical hip dislocation (SHD) in the therapy of femoral acetabular impingement (FAI) has been mostly replaced by minimally invasive techniques. Nevertheless, in the circumstances of complex FAI types and combined impingement located in inaccessible areas of the hip, SHD is an option to reach those deformities. The advantage of the complete overview of the hip joint enables the circumferential therapy of bony deformity, but at the expense of higher invasivity. In the literature there is still a lack of mid to long-term studies of SHD to determine the overall treatment outcome...
February 8, 2017: Der Orthopäde
https://www.readbyqxmd.com/read/28165597/increase-in-safe-zone-area-of-the-acetabular-cup-using-dual-mobility-cups-in-tha
#6
Takaaki Ohmori, Tamon Kabata, Toru Maeda, Yoshitomo Kajino, Tadashi Taga, Kazuhiro Hasegawa, Daisuke Inoue, Takashi Yamamoto, Tomoharu Takagi, Hiroyuki Tsuchiya
BACKGROUND: Dual mobility cup (DMC) inserts reduce the risk of dislocation after total hip arthroplasty (THA). No available research has clearly delineated stability advantages of DMC inserts in primary and revision THA. We investigated: (i) the degree of change in the safe zone of the cup when a DMC insert is used compared to a fixed insert; (ii) the method of selecting candidates for a DMC insert without changing the position of the acetabular (cup) component during revision THA in frequent dislocation cases caused by implant impingement...
January 30, 2017: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
https://www.readbyqxmd.com/read/28149715/remplissage-of-the-femoral-head-neck-junction-in-revision-hip-arthroscopy-a-technique-to-correct-excessive-cam-resection
#7
Jonathan M Frank, Jorge Chahla, Justin J Mitchell, Eduardo Soares, Marc J Philippon
Femoroacetabular impingement (FAI) is an increasingly recognized cause of hip pain. This pathology often involves abnormal femoral neck shape (cam-type FAI), acetabular over coverage (pincer-type FAI), or mixed pathology. Surgical treatment of this entity includes labral repair and femoral head-neck osteochondroplasty. A mindful arthroscopic technique is of paramount importance, because maintaining the integrity of the labrum and a corresponding neck volume has been reported to be vital in maintaining the hip suction seal...
December 2016: Arthroscopy Techniques
https://www.readbyqxmd.com/read/28088837/disease-severity-classification-using-quantitative-magnetic-resonance-imaging-data-of-cartilage-in-femoroacetabular-impingement
#8
Lisa L Henn, John Hughes, Eleena Iisakka, Jutta Ellermann, Shabnam Mortazavi, Connor Ziegler, Mikko J Nissi, Patrick Morgan
Femoroacetabular impingement (FAI) is a condition in which subtle deformities of the femoral head and acetabulum (hip socket) result in pathological abutment during hip motion. FAI is a common cause of hip pain and can lead to acetabular cartilage damage and osteoarthritis. For some patients with FAI, surgical intervention is indicated, and it can improve quality of life and potentially delay the onset of osteoarthritis. For other patients, however, surgery is contraindicated because significant cartilage damage has already occurred...
January 15, 2017: Statistics in Medicine
https://www.readbyqxmd.com/read/28066744/arthroscopic-release-of-iliopsoas-tendon-in-patients-with-femoro-acetabular-impingement-clinical-results-at-mid-term-follow-up
#9
Rodrigo Mardones, Alessio Giai Via, Alexander Tomic, Claudio Rodriguez, Matias Salineros, Marcelo Somarriva
BACKGROUND: The iliopsoas tendon is a recognized cause of extra-articular hip pain, and tenotomy has been described as an effective treatment in patients who do not respond to conservative treatments. Endoscopic release showed higher success rate, lower recurrence, fewer complications compared to open surgery. The aim of the study is to report the results at a mean of 4 years follow-up of a series of patients affected by femoroacetabular impingement (FAI) and an associated iliopsoas tendinopathy, treated with hip arthroscopy and transcapsular tendon release...
July 2016: Muscles, Ligaments and Tendons Journal
https://www.readbyqxmd.com/read/28066739/hip-instability-a-review-of-hip-dysplasia-and-other-contributing-factors
#10
REVIEW
Matthew J Kraeutler, Tigran Garabekyan, Cecilia Pascual-Garrido, Omer Mei-Dan
BACKGROUND: Hip instability has classically been associated with developmental dysplasia of the hip (DDH) in newborns and children. However, numerous factors may contribute to hip instability in children, adolescents, and adults. PURPOSE: This review aims to concisely present the literature on hip instability in patients of all ages in order to guide health care professionals in the appropriate diagnosis and treatment of the various disorders which may contribute to an unstable hip...
July 2016: Muscles, Ligaments and Tendons Journal
https://www.readbyqxmd.com/read/28066738/ligamentum-teres-tendinopathy-and-tears
#11
REVIEW
Matthew J Kraeutler, Tigran Garabekyan, Cecilia Pascual-Garrido, Omer Mei-Dan
BACKGROUND: The ligamentum teres (LT) consists of two bands that originate on the ischial and pubic sides of the acetabular notch and insert on the fovea capitis of the femoral head. Recent studies have established the LT as an important hip stabilizer in a squatting position, particularly in patients with osseous instability. PURPOSE: This review aims to concisely present the literature on LT tendinopathy and tears in order to guide health care professionals in the appropriate diagnosis and treatment of these disorders...
July 2016: Muscles, Ligaments and Tendons Journal
https://www.readbyqxmd.com/read/28063762/isolated-acetabuloplasty-and-labral-repair-for-combined-type-femoroacetabular-impingement-are-we-doing-too-much
#12
Vehniah K Tjong, Mustafa M Gombera, Cynthia A Kahlenberg, Ronak M Patel, Brian Han, Prashant Deshmane, Michael A Terry
PURPOSE: To evaluate patient outcomes after isolated arthroscopic volumetric acetabular osteoplasty and labral repair for the treatment of patients with combined femoroacetabular impingement (FAI) lesions. METHODS: A review of a prospectively collected registry identified 86 patients (106 hips) with an average age of 38.1 years (range, 17-59 years) with combined-type FAI that underwent isolated acetabular osteoplasty and labral repair. Preoperative α-angle, degree of radiographic degenerative changes, and presence of a crossover sign were recorded...
January 4, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28053252/instability-of-the-hip-after-anatomical-re-alignment-in-patients-with-a-slipped-capital-femoral-epiphysis
#13
REVIEW
A Aprato, M Leunig, A Massé, T Slongo, R Ganz
AIMS: Several studies have reported the safety and efficacy of subcapital re-alignment for patients with slipped capital femoral epiphysis (SCFE) using surgical dislocation of the hip and an extended retinacular flap. Instability of the hip and dislocation as a consequence of this surgery has only recently gained attention. We discuss this problem with some illustrative cases. MATERIALS AND METHODS: We explored the literature on the possible pathophysiological causes and surgical steps associated with the risk of post-operative instability and articular damage...
January 2017: Bone & Joint Journal
https://www.readbyqxmd.com/read/28050531/femoroacetabular-impingement
#14
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/28013332/early-experience-with-dual-mobility-acetabular-systems-featuring-highly-cross-linked-polyethylene-liners-for-primary-hip-arthroplasty-in-patients-under-fifty-five-years-of-age-an-international-multi-centre-preliminary-study
#15
Jean-Alain Epinette, Steven F Harwin, Fiachra E Rowan, Philippe Tracol, Michael A Mont, Morad Chughtai, Geoffrey H Westrich
PURPOSE: To evaluate early performance of contemporary dual mobility acetabular systems with second generation annealed highly cross-linked polyethylene for primary hip arthroplasty of patients under 55 years of age. METHODS: A prospective observational five years study across five centers in Europe and the USA of 321 patients with a mean age of 48.1 years was performed. Patients were assessed for causes of revision, hip instability, intra-prosthetic dissociation, Harris hip score and radiological signs of osteolysis...
December 24, 2016: International Orthopaedics
https://www.readbyqxmd.com/read/28006109/joint-loading-in-the-sagittal-plane-during-gait-is-associated-with-hip-joint-abnormalities-in-patients-with-femoroacetabular-impingement
#16
Michael A Samaan, Benedikt J Schwaiger, Matthew C Gallo, Kiyoshi Sada, Thomas M Link, Alan L Zhang, Sharmila Majumdar, Richard B Souza
BACKGROUND: Femoroacetabular impingement (FAI) is a morphological abnormality of the hip joint that results in functional impairments during various activities of daily living (ADL) such as walking. Purpose/Hypothesis: The purpose of this study was to determine if lower extremity joint loading differed between patients with FAI and controls and to determine whether these altered biomechanical parameters were associated with intra-articular abnormalities. It was hypothesized that patients with FAI would exhibit altered lower extremity joint loading during walking when compared with healthy controls and that these altered joint loading patterns would be associated with intra-articular abnormalities...
March 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/27981665/hip-mri-prevalence-of-articular-cartilage-defects-and-labral-tears-in-asymptomatic-volunteers-a-comparison-with-a-matched-population-of-patients-with-femoroacetabular-impingement
#17
Florian Tresch, Tobias J Dietrich, Christian W A Pfirrmann, Reto Sutter
PURPOSE: To prospectively compare defects of the articular cartilage and labrum in asymptomatic volunteers and in patients with femoroacetabular impingement (FAI) matched for age and gender. MATERIALS AND METHODS: This cross-sectional study was institutional review board approved. A total of 63 asymptomatic volunteers and 63 patients with symptomatic FAI between 20 and 50 years underwent 1.5 Tesla MRI (coronal T1-weighted, coronal intermediate-weighted fat saturated, transverse oblique true fast imaging with steady-state precession [FISP], sagittal dual echo steady state [DESS] sequence)...
December 16, 2016: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/27975135/accuracy-of-non-arthrographic-3t-mr-imaging-in-evaluation-of-intra-articular-pathology-of-the-hip-in-femoroacetabular-impingement
#18
Dorota D Linda, Ali Naraghi, Lucas Murnaghan, Daniel Whelan, Lawrence M White
OBJECTIVE: To investigate the accuracy of non-arthrographic 3-T MRI compared to hip arthroscopy in the assessment of labral and cartilaginous pathology in patients with suspected FAI. MATERIALS AND METHODS: Following IRB approval and waived consent, 42 consecutive cases of suspected FAI with non-arthrographic 3-T MRI and arthroscopy of the hip were reviewed. High-resolution TSE MR imaging was evaluated in consensus by two musculoskeletal radiologists, blinded to arthroscopic findings, for the presence of labral tears and articular cartilage lesions...
December 14, 2016: Skeletal Radiology
https://www.readbyqxmd.com/read/27924742/dual-mobility-total-hip-replacement-in-a-high-risk-population
#19
Jatinder Singh Luthra, Amur Al Riyami, Mohamad Kasim Allami
OBJECTIVE: The purpose of the study was to evaluate results of dual mobility total replacement in a high risk population who take hip into hyperflexed position while sitting and praying on the floor. METHOD: The study included 65 (35 primary total replacement and 30 complex total hip replacement) cases of total hip replacement using avantage privilege dual mobility cup system from biomet. A cemented acetabular component and on femoral side a bimetric stem, either cemented or uncemented used depending on the canal type...
2016: SICOT-J
https://www.readbyqxmd.com/read/27913129/preoperative-planning-and-operative-techniques-of-the-shorter-tapered-stem-compared-to-the-metaphyseal-fit-stem-in-cementless-total-hip-arthroplasty
#20
Hiroshi Imai, Joji Miyawaki, Tomomi Kamada, Akira Maruishi, Jun Takeba, Hiromasa Miura
BACKGROUND: In order to prevent postoperative dislocation due to prosthetic impingement as a result of total hip arthroplasty (THA), the combined anteversion (CA) theory, which combines the anteversion of the femoral stem and the acetabular socket, has been revised in recent years. Particularly, it is necessary to keep CA within the target zone. METHODS: The aim of this study was to investigate whether postoperative CA can be kept within the target zone while using the operative technique which prepares the socket first in cementless THA, by estimating the anteversion of the metaphyseal fit stem or the shorter, tapered wedge stem using preoperative 3-dimensional computerized planning, and by adjusting the anteversion of the socket using a navigation system that considers CA...
November 10, 2016: Journal of Arthroplasty
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