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Internal impingement

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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
#1
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
#2
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
#3
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
#4
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
#5
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
https://www.readbyqxmd.com/read/28712801/the-effect-of-pelvic-tilt-and-femoral-head-size-on-hip-range-of-motion-to-impingement
#6
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/28702502/characteristics-and-clinical-outcomes-in-overhead-sports-athletes-after-rotator-cuff-repair
#7
Tomoyuki Muto, Hiroaki Inui, Hiroki Ninomiya, Hiroshi Tanaka, Katsuya Nobuhara
Rotator cuff tears in young overhead sports athletes are rare. The pathomechanism causing rotator cuff tears in young overhead athletes is different from that in aged patients. The purpose of this study was to investigate rotator cuff tear characteristics in young overhead sports athletes to reveal the pathomechanism causing these injuries. This study included 25 overhead sports athletes less than 30 years old with atraumatic rotator cuff tears necessitating repair. Rotator cuff tear characteristics were evaluated intraoperatively, including rotator cuff tear shape and injured rotator cuff tendon...
2017: Journal of Sports Medicine (Hindawi Publishing Corporation)
https://www.readbyqxmd.com/read/28654438/differences-in-athletic-performance-between-sportsmen-with-symptomatic-femoroacetabular-impingement-and-healthy-controls
#8
Karen Mullins, Michael Hanlon, Patrick Carton
OBJECTIVE: Femoroacetabular impingement (FAI) is a commonly recognized condition in athletes characterized by activity-related hip pain and stiffness, which if left untreated can progress to hip osteoarthritis. The aim of the study was to determine the effect of symptomatic FAI on performance in young athletes based on the hypothesis that athletes with FAI would show deficits in performance compared with healthy controls. DESIGN: The functional performance of a cohort of preoperative, competitive sportsmen with symptomatic FAI (FAI group, n = 54), was compared with that of a group of age, sex and activity-level matched controls (n = 66)...
June 22, 2017: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/28645960/efficacy-of-adding-a-physiotherapy-rehabilitation-programme-to-arthroscopic-management-of-femoroacetabular-impingement-syndrome-a-randomised-controlled-trial-fair
#9
Kim L Bennell, Libby Spiers, Amir Takla, John O'Donnell, Jessica Kasza, David J Hunter, Rana S Hinman
OBJECTIVES: Although several rehabilitation programmes following hip arthroscopy for femoracetabular impingement (FAI) syndrome have been described, there are no clinical trials evaluating whether formal physiotherapy-prescribed rehabilitation improves recovery compared with self-directed rehabilitation. The objective of this study was to evaluate the efficacy of adding a physiotherapist-prescribed rehabilitation programme to arthroscopic surgery for FAI syndrome. DESIGN: Randomised controlled trial...
June 23, 2017: BMJ Open
https://www.readbyqxmd.com/read/28637601/clinical-assessment-of-subacromial-shoulder-impingement-which-factors-differ-from-the-asymptomatic-population
#10
Helen Land, Susan Gordon, Kerrianne Watt
BACKGROUND: To date, the significance of factors purported to be associated with subacromial shoulder impingement (SSI) and what differences, if any, are present in those with SSI compared to a matched asymptomatic population has not been identified. Gaining information about differences between people with SSI and asymptomatic people may direct clinicians towards treatments that impact upon these differences. OBJECTIVE: Compare the assessment findings of factors suggested to be associated with SSI; passive posterior shoulder range, passive internal rotation range, resting cervical and thoracic postures, active thoracic range in standing and scapula positioning between cases experiencing SSI and a matched asymptomatic group (controls)...
February 2017: Musculoskeletal Science & Practice
https://www.readbyqxmd.com/read/28637599/isokinetic-clinical-assessment-of-rotator-cuff-strength-in-subacromial-shoulder-impingement
#11
Helen Land, Susan Gordon, Kerrianne Watt
BACKGROUND: Current conservative management of subacromial shoulder impingement (SSI) includes generic strengthening exercises, especially for internal (IR) and external (ER) shoulder rotators. However, there is no evidence that the strength or the ratio of strength between these muscle groups is different between those with SSI (cases) and an asymptomatic population (controls). OBJECTIVE: To identify if isokinetic rotator cuff strength or the ratio of strength is significantly different between cases and controls...
February 2017: Musculoskeletal Science & Practice
https://www.readbyqxmd.com/read/28625096/surgical-technique-and-early-outcomes-of-intramedullary-nailing-of-displaced-proximal-humeral-fractures-in-an-asian-population-using-a-contemporary-straight-nail-design
#12
Toon Dong Hao, Andy Wee Teck Huat
BACKGROUND: Despite being a common orthopedic injury, the optimal management of proximal humeral fractures remains a topic of debate. Although intramedullary nails have been used to treat these fractures, several complications have been reported with older nail devices. We describe our surgical technique and aim to evaluate the early functional and radiological outcomes of displaced Neer's two- to four-part proximal humeral fractures undergoing fixation with a contemporary straight intramedullary nail...
May 2017: Journal of Orthopaedic Surgery
https://www.readbyqxmd.com/read/28623078/arthroscopic-treatment-of-femoroacetabular-impingement-in-adolescents-provides-clinically-significant-outcome-improvement
#13
Benedict U Nwachukwu, Brenda Chang, Cynthia A Kahlenberg, Kara Fields, Danyal H Nawabi, Bryan T Kelly, Anil S Ranawat
PURPOSE: To define minimal clinically important difference (MCID) and substantial clinical benefit (SCB) for adolescents undergoing arthroscopic femoroacetabular impingement (FAI) surgery. METHODS: A prospective institutional hip preservation registry was reviewed to identify hip arthroscopies performed for FAI. Patients with pre-existing hip conditions such as slipped capital femoral epiphysis and Legg-Calve-Perthese were excluded. Included patients were 18 years and younger...
June 13, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28617507/silicene-growth-through-island-migration-and-coalescence
#14
Mathew J Cherukara, Badri Narayanan, Henry Chan, Subramanian K R S Sankaranarayanan
We perform massively-parallel classical molecular dynamics (MD) simulations to study the long timescale monolayer silicene growth on an Ir (111) surface. We observe an intricate multi-stage growth process driven by atomic and cluster migration on the surface. Initial growth involves formation of sub-nanometer clusters via adatom surface diffusion. Subsequently, these clusters rearrange spontaneously with each additional Si atom, forming clusters containing 4-7 member rings. Growth of each cluster through adatom adhesion is accompanied by the formation of larger islands through cluster migration and coalescence...
July 27, 2017: Nanoscale
https://www.readbyqxmd.com/read/28609640/assessment-of-disability-related-to-femoroacetabular-impingement-syndrome-by-use-of-the-patient-reported-outcome-measure-information-system-promis-and-objective-measures-of-physical-performance
#15
Andrew J Sheean, Matthew R Schmitz, Catherine L Ward, Aaron E Barrow, David J Tennent, Christopher J Roach, Travis C Burns, Jason M Wilken
BACKGROUND: The National Institutes of Health (NIH)-sponsored Patient-Reported Outcomes Measurement System (PROMIS) has been described as a valuable tool for characterizing outcomes among patients with specific musculoskeletal conditions. Additionally, previously proposed objective measures of physical performance among patients with nonarthritic hip abnormalities are costly and not practically incorporated into routine clinical practice. PURPOSE: (1) To determine the ability of the PROMIS to differentiate between patients with femoroacetabular impingement (FAI) and asymptomatic controls, (2) to determine the effect of FAI on subjects' completion of timed physical performance measures, and (3) to determine whether associations exist between established patient-reported outcome (PRO) measures and subjects' completion of physical performance measures...
June 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28605002/short-term-outcomes-of-open-hip-preservation-surgery-for-symptomatic-extraarticular-femoroacetabular-impingement
#16
Benjamin F Ricciardi, Kara G Fields, Catherine Wentzel, Bryan T Kelly, Ernest L Sink
INTRODUCTION: The purposes of this study were to describe: (i) short-term disease-specific patient-reported outcome scores (PROMs); and (ii) factors associated with reoperation or treatment failure in patients undergoing open hip preservation surgery for symptomatic extraarticular FAI. METHODS: Patients undergoing open hip preservation surgery for symptomatic extraarticular FAI were identified from a prospective, single-centre hip preservation registry (n = 51 patients; median clinical follow-up 24 [range 11-49] months)...
June 7, 2017: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
https://www.readbyqxmd.com/read/28589876/short-term-results-after-arthroscopic-resection-of-synovial-plicae-in-the-radiohumeral-joint-a-case-series-of-64-procedures
#17
Jens Brahe Pedersen, Pia Kjær Kristensen, Peter Mønsted, Theis Muncholm Thillemann
INTRODUCTION: Painful Synovial Plicae (SP) in the posterolateral corner of the radiohumeral joint may be confused with lateral epicondylitis. The SP may impinge between the radial head and the humeral capitellum causing pain and snapping. The aim of this study was to evaluate the short-term results after arthroscopic plica resection of the elbow. METHODS: In this case series, we included a consecutive series of 64 arthroscopies (60 patients) with arthroscopic plica resection of the elbow...
2017: SICOT-J
https://www.readbyqxmd.com/read/28585048/diminished-femoral-head-neck-offset-and-the-restricted-hip-range-of-motion-suggesting-a-possible-role-in-acl-injuries
#18
Abolfazl Bagherifard, Mahmoud Jabalameli, Hooman Yahyazadeh, Azadeh Shafieesabet, Kaveh Gharanizadeh, Ali Jahansouz, Parhan Khanlari
PURPOSE: Femoroacetabular impingement may be associated with anterior cruciate ligament (ACL) injuries. The purpose of this study was to determine the head-neck offset, as measured by 45° Dunn's view alpha angles, in patients with ACL injuries compared to control subjects. METHODS: In this retrospective study, 140 consecutive non-professional athletes with primary ACL ruptures confirmed with knee arthroscopy and 100 consecutive patients with non-ACL injury were enrolled...
June 5, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28585023/dynamic-radiostereometric-analysis-for-evaluation-of-hip-joint-pathomechanics
#19
Lars Hansen, Sepp de Raedt, Peter Bo Jørgensen, Bjarne Mygind-Klavsen, Bart Kaptein, Maiken Stilling
BACKGROUND: Dynamic RSA (dRSA) enables non-invasive 3D motion-tracking of bones and may be used to evaluate in-vivo hip joint kinematics including hip pathomechanics such as femoroacetabular impingement (FAI) and the biomechanical effects of arthroscopic cheilectomy and -rim trimming (ACH). The study aim was to evaluate the kinematic changes in the hip joint after ACH. METHODS: Seven non-FAI affected human cadaveric hips were CT-scanned and CT-bone models were created...
December 2017: Journal of Experimental Orthopaedics
https://www.readbyqxmd.com/read/28572848/shoulder-impingement-syndrome-a-systematic-review-of-clinical-trial-participant-selection-criteria
#20
Amy R Watts, Ben Williams, Susan W Kim, Donald C Bramwell, Jeganath Krishnan
BACKGROUND: Shoulder impingement syndrome (SIS) is a common diagnosis for patients with pain and dysfunction of the shoulder. Variations in the signs and symptoms might lead to uncertainty regarding the definition of SIS. The aim of this review is to explore the participant selection criteria used in the literature when investigating SIS and to assess differences in criteria among treating professions. METHODS: This is a PRISMA systematic review of publications from 2009 to 2014 from MEDLINE, PubMed, The Cochrane Library, Embase, Scopus and CINAHL...
January 2017: Shoulder & Elbow
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