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Hip impingement

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https://www.readbyqxmd.com/read/28795076/intraoperative-radiation-exposure-during-hip-arthroscopy
#1
John P Salvo, Jake Zarah, Zaira S Chaudhry, Kirsten L Poehling-Monaghan
BACKGROUND: The frequency of hip arthroscopy for the treatment of acute and chronic chondrolabral pathology and femoroacetabular impingement (FAI) has increased exponentially over the past decade. While surgeon and patient radiation exposure has been well documented in other areas of the orthopaedic literature, little is known about the procedure-specific and cumulative doses affecting the hip arthroscopist. PURPOSE: To determine the mean annual radiation exposure to the hip arthroscopist and the mean surgeon exposure per case...
July 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28790467/current-concepts-in-acetabular-positioning-in-total-hip-arthroplasty
#2
Deepu Bhaskar, Asim Rajpura, Tim Board
Being one of the most successful surgeries in the history of medicine, the indications for total hip arthroplasty have widened and are increasingly being offered to younger and fitter patients. This has also led to high expectations for longevity and outcomes. Acetabular cup position has a significant impact on the results of hip arthroplasty as it affects dislocation, abductor muscle strength, gait, limb lengths, impingement, noise generation, range of motion (ROM), wear, loosening, and cup failure. The variables in cup position are depth, height, and angular position (anteversion and inclination)...
July 2017: Indian Journal of Orthopaedics
https://www.readbyqxmd.com/read/28790036/surgical-treatment-of-femoroacetabular-impingement-following-slipped-capital-femoral-epiphysis-a-systematic-review
#3
K O Oduwole, D de Sa, J Kay, F Findakli, A Duong, N Simunovic, Y Yi-Meng, O R Ayeni
OBJECTIVES: The purpose of this study was to evaluate the existing literature from 2005 to 2016 reporting on the efficacy of surgical management of patients with femoroacetabular impingement (FAI) secondary to slipped capital femoral epiphysis (SCFE). METHODS: The electronic databases MEDLINE, EMBASE, and PubMed were searched and screened in duplicate. Data such as patient demographics, surgical technique, surgical outcomes and complications were retrieved from eligible studies...
August 2017: Bone & Joint Research
https://www.readbyqxmd.com/read/28782498/results-of-arthroscopic-treatment-of-chondral-delamination-in-femoroacetabular-impingement-with-bone-marrow-stimulation-and-bst-cargel-%C3%A2
#4
Mahmoud Tahoun, Tamer Aly Shehata, Inmaculada Ormazabal, Jesús Mas, Javier Sanz, Marc Tey Pons
OBJECTIVES: The purpose of this study is to show the preliminary results of using chitosan-based scaffold (BST-CarGel(®)) with microfracture for treatment of acetabular chondral delamination associated with femoroacetabular impingement. METHODS: A prospective study was performed on 13 hips. Patients were selected in the age group between 18 and 50 years. Patients with delamination of acetabular cartilage associated with femoroacetabular impingement received arthroscopic debridement and microfracture technique...
2017: SICOT-J
https://www.readbyqxmd.com/read/28775337/femur-first-navigation-can-reduce-impingement-severity-compared-to-traditional-free-hand-total-hip-arthroplasty
#5
Arnab Palit, Mark A Williams, Glen A Turley, Tobias Renkawitz, Markus Weber
Impingement is a major source of dislocation and aseptic loosening in total hip arthroplasty (THA). We compared impingement free range of motion (ROM) using a novel computer navigated femur first approach to conventional THA. In addition, impingement between genders was also explored. In a retrospective analysis of 121 THA patients, subject-specific post-operative ROM was simulated using post-operative 3D-CT data, and compared with the benchmark ROM, essential for activities of daily living. Three parameters were defined to express both implant-to-implant (ITI) and bone-to-bone (BTB) impingement - coverage percentage, third angle, and impingement severity...
August 3, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28764697/femur-first-surgical-technique-a-smart-non-computer-based-procedure-to-achieve-the-combined-anteversion-in-primary-total-hip-arthroplasty
#6
Mattia Loppini, Umile Giuseppe Longo, Emanuele Caldarella, Antonello Della Rocca, Vincenzo Denaro, Guido Grappiolo
BACKGROUND: The relevance of prosthetic component orientation to prevent dislocation and impingement following total hip arthroplasty (THA) has been widely accepted. We investigated the use of a non-computer-based surgery to address the reciprocal orientation of the acetabular and femoral components. METHODS: In the femur first technique, the cup is positioned relative to the stem. When the definitive antetorsion of femoral component is fixed, the cup is positioned in a compliant anteversion to the stem...
August 1, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28762536/a-novel-mr-based-method-for-detection-of-cartilage-delamination-in-femoroacetabular-impingement-patients
#7
Michael A Samaan, Valentina Pedoia, Alan L Zhang, Matthew C Gallo, Thomas M Link, Richard B Souza, Sharmila Majumdar
In this study, quantitative magnetic resonance based measurements were used to evaluate T1ρ and T2 mapping and heterogeneity in femoroacetabular impingement (FAI) patients with acetabular cartilage delamination and to determine the ability of these quantitative MR-based measurements in detecting delamination. Unilateral hip joint MR-scans of 36 FAI patients with arthroscopically-confirmed acetabular cartilage delamination and 36 age, gender and BMI matched controls were obtained. T1ρ and T2 mapping and heterogeneity of the hip joint articular cartilage were assessed in both groups using voxel-based relaxometry (VBR)...
August 1, 2017: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/28762158/the-validity-and-accuracy-of-mri-arthrogram-in-the-assessment-of-painful-articular-disorders-of-the-hip
#8
Aysha Rajeev, Wim Tuinebreijer, Abdalla Mohamed, Mike Newby
The assessment of a patient with chronic hip pain can be challenging. The differential diagnosis of intra-articular pathology causing hip pain can be diverse. These includes conditions such as osteoarthritis, fracture, and avascular necrosis, synovitis, loose bodies, labral tears, articular pathology and, femoro-acetabular impingement. Magnetic resonance imaging (MRI) arthrography of the hip has been widely used now for diagnosis of articular pathology of the hip. A retrospective analysis of 113 patients who had MRI arthrogram and who underwent hip arthroscopy was included in the study...
July 31, 2017: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/28759983/validation-of-ct-image-based-software-for-three-dimensional-measurement-of-acetabular-coverage-profile
#9
Marcus P Wenzl, Markus Heller, Viktor Janz, Carsten Perka, Georgi I Wassilew
BACKGROUND: Plain radiography, 2-dimensional (2D) magnetic resonance imaging (MRI), and computed tomography (CT) do not precisely display morphology and acetabular coverage in developmental dysplasia of the hip or pincer-type femoroacetabular impingement. Pelvic position and pelvic tilt affect assessment of the acetabular parameters, leading to misinterpretation. OBJECTIVE: We tested a 3-dimensional (3D) CT evaluation script to calculate the crossover sign (COS), acetabular coverage and morphology...
July 21, 2017: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
https://www.readbyqxmd.com/read/28739309/preoperative-symptoms-in-femoroacetabular-impingement-patients-are-more-related-to-mental-health-scores-than-the-severity-of-labral-tear-or-magnitude-of-bony-deformity
#10
Cale A Jacobs, Jeremy M Burnham, Kate N Jochimsen, Domingo Molina, David A Hamilton, Stephen T Duncan
BACKGROUND: The purpose of this study was to determine the relationships between patient factors, mental health status, the condition of the local tissue, magnitude of bony deformity, and preoperative symptoms in a series of femoroacetabular impingement (FAI) patients. METHODS: From our prospective outcomes registry, we identified 64 patients with arthroscopically-treated labral tears and cam deformities. We assessed the correlations between patient factors (age, sex, body mass index, level of education), surgical findings (size of labral tear, presence of chondral lesions), mental health factors (VR-12 mental component score [MCS], depression, and preoperative use of psychotropic and/or opioid drugs), magnitude of FAI deformity (alpha and lateral center edge angles), and preoperative hip dysfunction and osteoarthritis outcome score (HOOS) subscales...
July 8, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28712801/the-effect-of-pelvic-tilt-and-femoral-head-size-on-hip-range-of-motion-to-impingement
#11
Thomas F McCarthy, Jim Nevelos, Randa K Elmallah, Morad Chughtai, Anton Khlopas, Vincent Alipit, Timothy C Wagner, Michael A Mont
BACKGROUND: About 50%-70% of dislocators have cups placed within so-called "safe zones." It has been postulated that factors such as femoral head size and pelvic tilt, obliquity, or rotation may influence postoperative stability. Therefore, we assessed varying degrees of pelvic tilt and head sizes on the range of motion (ROM) to impingement. METHODS: A hip simulator was used to import models of 10 subjects who performed object pickup, squatting, and low-chair rising...
June 15, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28709152/squatting-biomechanics-in-individuals-with-symptomatic-femoroacetabular-impingement
#12
Laura E Diamond, Kim L Bennell, Tim V Wrigley, Rana S Hinman, John Oʼdonnell, Paul W Hodges
PURPOSE: Identification of the biomechanical alterations in individuals with symptomatic femoroacetabular impingement (FAI) is critical to understand the pathology and inform treatments. Yet hip function in this condition is poorly defined. Squatting requires large hip flexion range and involves motion toward the position of hip impingement; thus, it is likely to expose modified biomechanics in these individuals. This study aimed to determine whether hip and pelvis biomechanics differ between individuals with and without symptomatic FAI during an unconstrained deep squat and a constrained squat designed to limit compensation by the pelvis and trunk...
August 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28706815/arthroscopic-subcapital-realignment-in-chronic-and-stable-slipped-capital-femoral-epiphysis
#13
Bruno Dutra Roos, Marcelo Camargo de Assis, Milton Valdomiro Roos, Antero Camisa Júnior, Ezequiel Moreno Ungaretti Lima
Stable slipped capital femoral epiphysis (SCFE) is the most common disease in the adolescent hip, with an estimated frequency of 10.8 in every 100,000 individuals. Recent studies of the biomechanics of femoroacetabular impingement indicate that small anatomical deformities of the hip arising from SCFE can potentially cause permanent acetabular chondral damage. There is no consensus about the best treatment option, especially for cases of moderate or severe chronic slippage (Southwick classification). Some authors recommend treatment with fixation in situ, in the belief that remodeling of the residual deformity of the femoral neck during growth allows proper function of the hip joint...
June 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/28706809/posterolateral-acetabuloplasty-and-distal-femoral-neckplasty-labral-repair-and-capsular-plication-for-hip-reverse-contre-coupe-lesion
#14
Sivashankar Chandrasekaran, John P Walsh, David E Hartigan, Parth Lodhia, Carlos Suarez-Ahedo, Benjamin G Domb
This article describes the arthroscopic approach and management of a "reverse contre-coup" injury to the hip labrum. The injury occurs in the setting of posterolateral acetabular rim over-coverage impinging on the distal femoral neck in extension causing the femoral head to lever out anteriorly against the labrum. Ligamentous laxity and associated loss of anterior capsular restraint allow increased femoral head translation, adding further insult to the anterior labrum. The arthroscopic approach entails not only a labral repair with correction of the osseous conflict but also restoration of soft-tissue stability to minimize anterior femoral translation...
June 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/28706795/measurement-of-hip-contact-pressure-during-arthroscopic-femoroacetabular-impingement-surgery
#15
Mitsunori Kaya
Cam impingement is caused by jamming of an abnormal femoral head with an increased radius into the acetabulum during motion. Therefore, the elevation of the contact pressure during the motion is suspected to be an essential pathology of femoroacetabular impingement. However, there is no method to quantify the hip contact pressure during motion. The purpose of this Technical Note is to introduce a technique to measure the hip contact pressure during arthroscopic surgery. The author believes that the current technique will be a useful tool for the detailed investigation of the pathophysiology femoroacetabular impingement and thorough evaluation of its therapeutic significance...
June 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/28682639/in-vivo-measurements-of-the-ischiofemoral-space-in-recreationally-active-participants-during-dynamic-activities-a-high-speed-dual-fluoroscopy-study
#16
Penny R Atkins, Niccolo M Fiorentino, Stephen K Aoki, Christopher L Peters, Travis G Maak, Andrew E Anderson
BACKGROUND: Ischiofemoral impingement (IFI) is a dynamic process, but its diagnosis is often based on static, supine images. PURPOSE: To couple 3-dimensional (3D) computed tomography (CT) models with dual fluoroscopy (DF) images to quantify in vivo hip motion and the ischiofemoral space (IFS) in asymptomatic participants during weightbearing activities and evaluate the relationship of dynamic measurements with sex, hip kinematics, and the IFS measured from axial magnetic resonance imaging (MRI)...
July 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28678628/indications-for-hip-arthroscopy
#17
James R Ross, Christopher M Larson, Asheesh Bedi
CONTEXT: Hip arthroscopy is gaining popularity within the field of orthopaedic surgery. The development and innovation of hip-specific arthroscopic instrumentation and improved techniques has resulted in improved access to the hip joint and ability to treat various hip pathologies. EVIDENCE ACQUISITION: Electronic databases, including PubMed and MEDLINE, were queried for articles relating to hip arthroscopy indications (1930-2017). STUDY DESIGN: Clinical review...
July 1, 2017: Sports Health
https://www.readbyqxmd.com/read/28678149/periacetabular-quadruple-osteotomy-of-the-pelvis-in-older-children-computed-tomography-scan-analysis-of-acetabular-retroversion-and-anterior-overcoverage-of-the-hip-preventing-femoral-acetabular-impingement
#18
Roger Jawish, Hassan Najdi, Ali Krayan
The periacetabular quadruple osteotomy of the pelvis (QOP), with the osteotomy of ischial spine to release the sacrospinal ligament, is reserved for older children with low potential of remodeling. Different parameters were studied with computed tomography (CT) scan before (pre-OH) and after surgery (post-OH) and for nonoperated hip (NOH). The study determined an optimal method to avoid retroversion and excessive anterior coverage. Fifteen QOP were performed in 13 patients, ranging in age from 10 to 15 years...
July 3, 2017: Journal of Pediatric Orthopedics. Part B
https://www.readbyqxmd.com/read/28673601/femoroacetabular-impingement-causes-osteoarthritis-of-the-hip-by-migration-and-micro-instability-of-the-femoral-head
#19
Henk Eijer, Tom Hogervorst
Femoroacetabular impingement is the condition whereby parts of the proximal femur mechanically collide with the acetabular rim leading to adjacent and contrecoup acetabular damage. Evidence is growing that at least for cam impingement, and perhaps less so for pincer impingement, there is a relation to the development of osteoarthritis. It has been demonstrated that surgery for impingement can improve function and decrease pain. Intuitively, it would then make sense that surgical intervention would prevent further degeneration...
July 2017: Medical Hypotheses
https://www.readbyqxmd.com/read/28671425/slipped-capital-femoral-epiphysis-diagnosis-and-management
#20
REVIEW
David M Peck, Lisa M Voss, Tyler T Voss
Slipped capital femoral epiphysis (SCFE) is the most common hip disorder in adolescents, occurring in 10.8 per 100,000 children. SCFE usually occurs in those eight to 15 years of age and is one of the most commonly missed diagnoses in children. SCFE is classified as stable or unstable based on the stability of the physis. It is associated with obesity, growth spurts, and (occasionally) endocrine abnormalities such as hypothyroidism, growth hormone supplementation, hypogonadism, and panhypopituitarism. Patients with SCFE usually present with limping and poorly localized pain in the hip, groin, thigh, or knee...
June 15, 2017: American Family Physician
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