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Internal impingement

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https://www.readbyqxmd.com/read/29021102/predictors-of-the-clinical-outcome-and-survival-without-degenerative-arthritis-after-surgical-treatment-of-femoroacetabular-impingement
#1
Nizamettin Kockara, Hakan Sofu, Ahmet Issin, Yalkın Çamurcu, Aysegul Bursali
BACKGROUND: The main purposes of the present study were to evaluate the functional improvement, to identify the predictors of the clinical outcome after open surgical management of femoroacetabular impingement (FAI) in mid-term, and to determine 5-year survival rate. METHODS: In this retrospective study, the clinical data of 33 patients (34 hips) were evaluated. Sex, age, body mass index (BMI), type of FAI, duration of symptoms up to surgical treatment, internal rotation of the affected hip, improvement of the Harris hip score (HHS) in the first 2 years, joint space narrowing evaluated radiographically and classified according to Kellgren-Lawrence classification, and any labral tear were the independent variables...
October 8, 2017: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/28990125/differences-in-range-of-motion-with-the-same-combined-anteversion-after-total-hip-arthroplasty
#2
Takaaki Ohmori, Tamon Kabata, Yoshitomo Kajino, Tadashi Taga, Kazuhiro Hasegawa, Daisuke Inoue, Takashi Yamamoto, Tomoharu Takagi, Junya Yoshitani, Takuro Ueno, Hiroyuki Tsuchiya
PURPOSE: We investigated the various impingement angles (including both bony and prosthetic impingement) and impingement types that can occur after THA, even when the same combined anteversion parameter is used. We also investigated the relationship between impingement angle and acetabular morphology or femoral anteversion. METHODS: We evaluated 83 patients with no hip arthritis. We divided them into six groups according to acetabular CE angle (≤15°, >15-≤25°, and >25°) and femoral anteversion (≤20° and >20°)...
October 9, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28987866/kinematic-patterns-in-normal-and-degenerative-shoulders-part-ii-review-of-3-d-scapular-kinematic-patterns-in-patients-with-shoulder-pain-and-clinical-implications
#3
REVIEW
Marie-Martine Lefèvre-Colau, Christelle Nguyen, Clemence Palazzo, Frederic Srour, Guillaume Paris, Valerie Vuillemin, Serge Poiraudeau, Agnes Roby-Brami, Alexandra Roren
BACKGROUND: The global range of motion of the arm is the result of a coordinated motion of the shoulder complex including glenohumeral (GH), scapulothoracic, sternoclavicular and acromioclavicular joints. METHODS: This study is a non-systematic review of kinematic patterns in degenerated shoulders. It is a based on our own research on the kinematics of the shoulder complex and clinical experience. RESULTS: For patients with subacromial impingement syndrome without rotator-cuff tears, most kinematic studies showed a small superior humeral translation relative to the glenoid and decreased scapular lateral rotation and posterior tilt...
October 5, 2017: Annals of Physical and Rehabilitation Medicine
https://www.readbyqxmd.com/read/28986631/comparative-reliability-and-diagnostic-performance-of-conventional-3t-magnetic-resonance-imaging-and-1-5t-magnetic-resonance-arthrography-for-the-evaluation-of-internal-derangement-of-the-hip
#4
A Chopra, A J Grainger, B Dube, R Evans, R Hodgson, J Conroy, D Macdonald, Philip Robinson
OBJECTIVE: To compare the diagnostic accuracy of conventional 3T MRI against 1.5T MR arthrography (MRA) in patients with clinical femoroacetabular impingement (FAI). METHODS: Sixty-eight consecutive patients with clinical FAI underwent both 1.5T MRA and 3T MRI. Imaging was prospectively analysed by two musculoskeletal radiologists, blinded to patient outcomes and scored for internal derangement including labral and cartilage abnormality. Interobserver variation was assessed by kappa analysis...
October 6, 2017: European Radiology
https://www.readbyqxmd.com/read/28971082/open-versus-arthroscopic-approach-in-the-treatment-of-femoroacetabular-impingement-a-case-control-study-with-two-years-follow-up
#5
Bruno Dutra Roos, Milton Valdomiro Roos, Antero Camisa Júnior, Ezequiel Moreno Ungaretti Lima, Maurício Domingos Betto
OBJECTIVE: To compare clinical and imaging results and complications between patients treated for femoroacetabular impingement (FAI) who underwent either anterior open surgery or an arthroscopic approach, with a minimum follow-up of two years. METHODS: This retrospective case-control study included patients submitted to FAI surgical treatment between November 2007 and March 2012. Patients treated with open surgery were compared with those treated with arthroscopy...
2017: Revista Brasileira de Ortopedia
https://www.readbyqxmd.com/read/28969949/variability-and-comprehensiveness-of-north-american-online-available-physical-therapy-protocols-following-hip-arthroscopy-for-femoroacetabular-impingement-and-labral-repair
#6
Gregory L Cvetanovich, Vincent Lizzio, Fabien Meta, Derek Chan, Ira Zaltz, Shane J Nho, Eric C Makhni
PURPOSE: To assess comprehensiveness and variability of postoperative physical therapy protocols published online following hip arthroscopy for femoroacetabular impingement (FAI) and/or labral repair. METHODS: Surgeons were identified by the International Society for Hip Arthroscopy "Find a Surgeon" feature in North America (http://www.isha.net/members/, search August 10, 2016). Exclusion criteria included nonsurgeons and protocols for conditions other than hip arthroscopy for FAI and/or labral tear...
September 29, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28969815/the-influence-of-squat-kinematics-and-cam-morphology-on-acetabular-stress
#7
Jennifer J Bagwell, Christopher M Powers
PURPOSE: To evaluate the effect of varying degrees of simulated cam morphology on acetabular stress magnitude and location using a finite element model with 1 subject that incorporates population-specific hip/pelvis kinematics during a squat task. METHODS: A reference model of the hip joint was created from magnetic resonance images obtained from 1 asymptomatic 28-year-old man without femoroacetabular impingement (FAI) morphology or hip dysplasia (alpha angle 41...
October 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28961976/disentangling-puberty-novel-neuroendocrine-pathways-and-mechanisms-for-the-control-of-mammalian-puberty
#8
M S Avendaño, M J Vazquez, M Tena-Sempere
BACKGROUND: Puberty is a complex developmental event, controlled by sophisticated regulatory networks that integrate peripheral and internal cues and impinge at the brain centers driving the reproductive axis. The tempo of puberty is genetically determined but is also sensitive to numerous modifiers, from metabolic and sex steroid signals to environmental factors. Recent epidemiological evidence suggests that the onset of puberty is advancing in humans, through as yet unknown mechanisms...
August 30, 2017: Human Reproduction Update
https://www.readbyqxmd.com/read/28948034/predictors-of-outcome-at-2-year-follow-up-after-arthroscopic-treatment-of-femoro-acetabular-impingement
#9
Axel Öhlin, Mikael Sansone, Olufemi R Ayeni, Leif Swärd, Mattias Ahldén, Adad Baranto, Jón Karlsson
Femoro-acetabular impingement (FAI) is a common cause of hip pain and dysfunction in the young and active population. Despite reports of good short-term outcomes following treatment for FAI, less is known about the possible preoperative predictors of treatment outcome. The purpose of this study was to identify predictors of treatment outcome, using a patient-reported outcome measurement score (PROM) validated for use in a young and active population undergoing arthroscopic surgery for FAI. Patients were prospectively enrolled and analysed using the PROM International Hip Outcome Tool (iHOT-12) preoperatively and at a 2-year follow-up...
August 2017: Journal of Hip Preservation Surgery
https://www.readbyqxmd.com/read/28940564/giant-pseudoaneurysm-of-the-external-carotid-artery-causing-stroke-a-case-report
#10
Hrvoje Budinčević, Marina Milosevic, Tomislav Pavlovic
We report a patient in whom mechanical compression of the internal carotid artery by a giant external carotid artery pseudoaneurysm caused a stroke. This was a case of vascular Eagle syndrome due to the impingement of an elongated styloid process on the external carotid artery with subsequent dissection and formation of a pseudoaneurysm. Carotid ultrasonographic examination allowed distinguishing the pseudoaneurysm from other vascular and solid masses of the neck.
September 22, 2017: Journal of Clinical Ultrasound: JCU
https://www.readbyqxmd.com/read/28924359/brazilian-orthopedists-opinions-and-perceptions-on-femoroacetabular-impingement
#11
Leandro Ejnisman, Moin Khan, Olufemi Rolland Ayeni, Mohit Bhandari, Helder de Souza Miyahara, Jose Ricardo Negreiros Vicente
OBJECTIVE: To assess the opinion of Brazilian orthopedists surgeons on the diagnosis and treatment of femoroacetabular impingement (FAI). METHODS: A questionnaire was sent to several orthopedic societies around the world, including the Sociedade Brasileira de Ortopedia e Traumatologia (SBOT). This questionnaire was sent electronically and included questions on many topics related to FAI. RESULTS: 253 Brazilian orthopedists responded the questionnaire...
November 2016: Acta Ortopedica Brasileira
https://www.readbyqxmd.com/read/28904952/internal-impingement-of-the-shoulder-a-risk-of-false-positive-test-outcomes-in-external-impingement-tests
#12
Tim Leschinger, Christopher Wallraff, Dirk Müller, Matthias Hackenbroch, Henning Bovenschulte, Jan Siewe
BACKGROUND: External impingement tests are considered as being particularly reliable for identifying subacromial and coracoid shoulder impingement mechanisms. The purpose of the present study was to evaluate if these tests are likely to provoke an internal shoulder impingement mechanism which, in cases of a pathologic condition, can lead to a positive test result. METHOD: In 37 subjects, the mechanical contact between the glenoid rim and the rotator cuff (RC) was measured quantitatively and qualitatively in external impingement test positions using an open MRI system...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28868322/viability-and-tissue-quality-of-cartilage-flaps-from-patients-with-femoroacetabular-hip-impingement-a-matched-control-comparison
#13
Francisco Rodriguez-Fontan, Karin A Payne, Jorge Chahla, Omer Mei-Dan, Abigail Richards, Soshi Uchida, Cecilia Pascual-Garrido
BACKGROUND: Chondrolabral damage is commonly observed in patients with cam-type femoroacetabular impingement (FAI). Chondral flap reattachment has recently been proposed as a possible preservation technique. PURPOSE/HYPOTHESIS: The purpose of this study was to determine the viability and tissue quality of chondral flaps from patients with FAI at the time of arthroscopy. It was hypothesized that chondral flaps from patients with cam lesions of the hip would exhibit less viability and greater tissue degeneration than would those of a matched control group...
August 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28840150/outcomes-for-arthroscopic-treatment-of-anterior-inferior-iliac-spine-subspine-hip-impingement
#14
Benedict U Nwachukwu, Brenda Chang, Kara Fields, Jeremy Rinzler, Danyal H Nawabi, Anil S Ranawat, Bryan T Kelly
BACKGROUND: Femoroacetabular hip impingement (FAI) is now well recognized; however, anterior inferior iliac spine (AIIS; or subspine) impingement is a form of hip impingement that is underrecognized and can be an important source of hip disability and functional limitation. PURPOSE: To investigate the outcomes after arthroscopic treatment of AIIS/subspine-related hip impingement in the absence of FAI surgery. STUDY DESIGN: Case series; Level of evidence, 4...
August 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28838704/contact-pressure-of-the-coracoacromial-arch-in-shoulders-with-joint-contracture-a-cadaveric-study
#15
Yuki Shiota, Nobuyuki Yamamoto, Jun Kawakami, Hideaki Nagamoto, Takayuki Muraki, Kazuo Kaneko, Eiji Itoi
BACKGROUNDS: There have been many reports describing that the capsular fibrosis of the shoulder joint is the main cause of frozen shoulder, whereas others reported the significance of subacromial impingement as an etiological factor. The purpose of this study was to investigate the contact pressure between the coracoacromial arch and the rotator cuff tendons to clarify the contact phenomenon in shoulders with joint contracture. METHODS: Fourteen fresh-frozen cadaveric shoulders were used...
August 21, 2017: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/28820271/cam-deformities-and-limited-hip-range-of-motion-are-associated-with-early-osteoarthritic-changes-in-adolescent-athletes-a-prospective-matched-cohort-study
#16
Cody C Wyles, Germán A Norambuena, Benjamin M Howe, Dirk R Larson, Bruce A Levy, Brandon J Yuan, Robert T Trousdale, Rafael J Sierra
BACKGROUND: The natural history of femoroacetabular impingement (FAI) remains incompletely understood. In particular, there is limited documentation of joint damage in adolescent patients with limited range of motion (LROM) of the hip, which is commonly associated with FAI. PURPOSE: To evaluate changes in magnetic resonance imaging (MRI), radiographs, and clinical examinations over 5 years in a group of athletes from a wide variety of sports with asymptomatic LROM of the hip compared with matched controls...
August 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28802422/management-of-neglected-acl-avulsion-fractures-a-case-series-and-systematic-review
#17
D K Chouhan, M S Dhillon, R John, A Khurana
INTRODUCTION: Neglected tibial eminence avulsion fractures of the anterior cruciate ligament (ACL) are uncommonly seen in modern times, but are fairly common due to a missed diagnosis/mismanagement in developing countries. OBJECTIVES: To determine the outcomes after open reduction and internal fixation of late presenting ACL avulsion fractures, and to review the literature for similar cases, in an attempt to evaluate the ideal surgical management in this unique scenario...
August 2017: Injury
https://www.readbyqxmd.com/read/28795076/intraoperative-radiation-exposure-during-hip-arthroscopy
#18
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/28720483/left-right-patterning-breaking-symmetry-to-asymmetric-morphogenesis
#19
REVIEW
Daniel T Grimes, Rebecca D Burdine
Vertebrates exhibit striking left-right (L-R) asymmetries in the structure and position of the internal organs. Symmetry is broken by motile cilia-generated asymmetric fluid flow, resulting in a signaling cascade - the Nodal-Pitx2 pathway - being robustly established within mesodermal tissue on the left side only. This pathway impinges upon various organ primordia to instruct their side-specific development. Recently, progress has been made in understanding both the breaking of embryonic L-R symmetry and how the Nodal-Pitx2 pathway controls lateralized cell differentiation, migration, and other aspects of cell behavior, as well as tissue-level mechanisms, that drive asymmetries in organ formation...
July 15, 2017: Trends in Genetics: TIG
https://www.readbyqxmd.com/read/28716019/glenohumeral-and-scapulothoracic-strength-impairments-exists-in-patients-with-subacromial-impingement-but-these-are-not-reflected-in-the-shoulder-pain-and-disability-index
#20
M B Clausen, A Witten, K Holm, K B Christensen, M L Attrup, P Hölmich, K Thorborg
BACKGROUND: Pain and loss of function are cardinal symptoms associated with Subacromial impingement syndrome (SIS), while the presence and magnitude of deficits in strength and range of motion (ROM) are largely undescribed in non-athletic patients with SIS. Moreover, the relevance of impairments in strength and ROM to patient-reported shoulder function is not well described, even though testing of strength is recommended in clinical guidelines. The purpose of this study was, first, to investigate impairments in glenohumeral and scapulothoracic strength and in abduction and internal rotation ROM in patients with SIS...
July 17, 2017: BMC Musculoskeletal Disorders
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