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Internal impingement

Emily Meike, S M Howell, M L Hull
PURPOSE: After reconstructing a torn ACL with a soft tissue allograft, the long-term healing process of graft maturation following the short-term healing process of graft incorporation into the bone tunnels might lead to recurring instability and concomitant decreases in the activity level, function, and patient satisfaction. Relying on roentgen stereophotogrammetric analysis (RSA), the primary purpose was to determine whether anterior laxity increased and whether patient-reported outcomes declined between 1 and 7 years for a particular graft construct, surgical technique, and rehabilitation programme...
October 20, 2016: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
Benedict U Nwachukwu, Kara Fields, Brenda Chang, Danyal H Nawabi, Bryan T Kelly, Anil S Ranawat
BACKGROUND: There is increasing interest in defining meaningful improvement in patient-reported outcomes. Knowledge of the thresholds and determinants for successful femoroacetabular impingement (FAI) outcomes is evolving. PURPOSE: To define preoperative outcome score thresholds and determine clinical/demographic patient factors predictive for achieving the minimal clinically important difference (MCID) after arthroscopic FAI surgery. STUDY DESIGN: Cohort study (diagnosis); Level of evidence, 2...
October 20, 2016: American Journal of Sports Medicine
Roberto Seijas, Andrea Sallent, María Galán, Pedro Alvarez-Diaz, Oscar Ares, Ramón Cugat
BACKGROUND: Hip arthroscopy is considered a safe procedure, considering the relatively low rate of complications. Despite several complications have been described following this surgical procedure, the present event has not yet been described. The purpose of the present study is to report an unpublished complication following hip arthroscopy, after reviewing 162 hip arthroscopies and finding iliotibial band syndrome (ITBS) in the knee during followup. MATERIALS AND METHODS: A retrospective review of 162 hip arthroscopies performed between September 2007 and June 2011 was carried out, evaluating patients who presented ITBS during followup...
September 2016: Indian Journal of Orthopaedics
K Ashoke Raman, Rajeev K Jaiman, Thong-See Lee, Hong-Tong Low
Three dimensional simulations are performed to investigate the interaction dynamics between two drops impinging simultaneously on a dry surface. Of particular interest in this study is to understand the effects of impact velocity and surrounding gas density on droplet interactions. To simulate the droplet dynamics and morphologies, a computational framework based on the phase-field lattice Boltzmann formulation is employed for the two-phase flow computations involving high density ratio. Two different coalescence modes are identified when the impinging droplets have different impact speeds...
October 1, 2016: Journal of Colloid and Interface Science
Weijie Kong, Wenjuan Du, Kaipeng Liu, Changtao Wang, Ling Liu, Zeyu Zhao, Xiangang Luo
Hyperbolic metamaterials (HMMs) composed of multiple nanometal-dielectric films are proposed for launching deep subwavelength bulk plasmon polaritons (BPPs) as uniform, large area surface imaging illumination sources with a skin depth even beyond 10 nm. Benefiting from the coupled plasmon modes over a wide wavevector range in HMMs, the illumination depth could be continually tuned, simply by adjusting the incidence angle of light impinged on a grating structure for BPP excitation. As an example, the illumination depths of 19-63 nm at a light wavelength of 532 nm are demonstrated with SiO2-Ag multifilms...
September 29, 2016: Nanoscale
Lucia Mendoza-Viveros, Pascale Bouchard-Cannon, Sara Hegazi, Arthur H Cheng, Stephen Pastore, Hai-Ying Mary Cheng
Circadian timekeeping is a ubiquitous mechanism that enables organisms to maintain temporal coordination between internal biological processes and time of the local environment. The molecular basis of circadian rhythms lies in a set of transcription-translation feedback loops (TTFLs) that drives the rhythmic transcription of core clock genes, whose level and phase of expression serve as the marker of circadian time. However, it has become increasingly evident that additional regulatory mechanisms impinge upon the TTFLs to govern the properties and behavior of the circadian clock...
September 29, 2016: Cellular and Molecular Life Sciences: CMLS
Amanda J Youker, Sergey D Chemerisov, Peter Tkac, Michael Kalensky, Thad A Heltemes, David A Rotsch, George F Vandegrift, John F Krebs, Vakho Makarashvili, Dominique C Stepinski
: Molybdenum-99, the parent of the widely used medical isotope (99m)Tc, is currently produced by irradiation of enriched uranium in nuclear reactors. The supply of this isotope is encumbered by the aging of these reactors and concerns about international transportation and nuclear proliferation. METHODS: We report results for the production of (99)Mo from the accelerator-driven subcritical fission of an aqueous solution containing low enriched uranium. The predominately fast neutrons generated by impinging high-energy electrons onto a tantalum convertor are moderated to thermal energies to increase fission processes...
September 29, 2016: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
Andrei Golovko, Artyom Kojukhov, Bo-Jhih Guan, Benjamin Morpurgo, William C Merrick, Barsanjit Mazumder, Maria Hatzoglou, Anton A Komar
Eukaryotic initiation factor 2A (eIF2A) is a 65-kDa protein that was first identified in the early 1970s as a factor capable of stimulating initiator methionyl-tRNAi (Met-tRNA(Met)i) binding to 40S ribosomal subunits in vitro. However, in contrast to the eIF2, which stimulates Met-tRNA(Met)i binding to 40S ribosomal subunits in a GTP-dependent manner, eIF2A didn't reveal any GTP-dependence, but instead was found to direct binding of the Met-tRNA(Met)i to 40S ribosomal subunits in a codon-dependent manner. eIF2A appears to be highly conserved across eukaryotic species, suggesting conservation of function in evolution...
September 29, 2016: Cell Cycle
Eivind Inderhaug, Sveinung Raknes, Thomas Østvold, Eirik Solheim, Torbjørn Strand
PURPOSE: To map knee morphology radiographically in a population with a torn ACL and to investigate whether anatomic factors could be related to outcomes after ACL reconstruction at mid- to long-term follow-up. Further, we wanted to assess tibial tunnel placement after using the 70-degree "anti-impingement" tibial tunnel guide and investigate any relation between tunnel placement and revision surgery. METHODS: Patients undergoing ACL reconstruction involving the 70-degree tibial guide from 2003 to 2008 were included...
September 29, 2016: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
Karen A Keenan, Jonathan S Akins, Michelle Varnell, John Abt, Mita Lovalekar, Scott Lephart, Timothy C Sell
OBJECTIVE: To examine the effect of kinesiology tape (KT) on shoulder strength, proprioception, and scapular kinematics in healthy and Subacromial Impingement Syndrome (SAIS) subjects. DESIGN: Placebo-controlled quasi-experimental study. SETTING: Research laboratory. PARTICIPANTS: A total of 30 physically active subjects participated. Ten healthy subjects with no previous history of shoulder pathology received KT on the dominant shoulder...
June 19, 2016: Physical Therapy in Sport
Seyed Hamed Mirhoseini, Mahnaz Nikaeen, Hossein Khanahmad, Akbar Hassanzadeh
BACKGROUND: Airborne transmission of pathogenic resistant bacteria is well recognized as an important route for the acquisition of a wide range of nosocomial infections in hospitals. The aim of this study was to determine the prevalence of airborne vancomycin and gentamicin (VM and GM) resistant bacteria in different wards of four educational hospitals. MATERIALS AND METHODS: A total of 64 air samples were collected from operating theater (OT), Intensive Care Unit (ICU), surgery ward, and internal medicine ward of four educational hospitals in Isfahan, Iran...
2016: Advanced Biomedical Research
Sin-Ichiro Sugiyama, Hidenori Endo, Shunsuke Omodaka, Toshiki Endo, Kuniyasu Niizuma, Sherif Rashad, Toshio Nakayama, Kenichi Funamoto, Makoto Ohta, Teiji Tominaga
OBJECTIVES: We present a hemodynamic study of an intracranial aneurysm with a newly developed daughter sac during observation. We aimed to investigate the role of hemodynamics on the formation of a daughter sac. METHODS: A 75-year-old male patient underwent magnetic resonance (MR) angiography, which revealed a large internal carotid artery aneurysm with inflow jet inside the aneurysm. The aneurysm was stable for 18 months, but a new daughter sac developed at the tip of the aneurysm during the next 6 months...
September 16, 2016: World Neurosurgery
Peter Dh Wall, Edward J Dickenson, David Robinson, Ivor Hughes, Alba Realpe, Rachel Hobson, Damian R Griffin, Nadine E Foster
INTRODUCTION: Femoroacetabular impingement (FAI) syndrome is increasingly recognised as a cause of hip pain. As part of the design of a randomised controlled trial (RCT) of arthroscopic surgery for FAI syndrome, we developed a protocol for non-operative care and evaluated its feasibility. METHODS: In phase one, we developed a protocol for non-operative care for FAI in the UK National Health Service (NHS), through a process of systematic review and consensus gathering...
October 2016: British Journal of Sports Medicine
D R Griffin, E J Dickenson, J O'Donnell, R Agricola, T Awan, M Beck, J C Clohisy, H P Dijkstra, E Falvey, M Gimpel, R S Hinman, P Hölmich, A Kassarjian, H D Martin, R Martin, R C Mather, M J Philippon, M P Reiman, A Takla, K Thorborg, S Walker, A Weir, K L Bennell
The 2016 Warwick Agreement on femoroacetabular impingement (FAI) syndrome was convened to build an international, multidisciplinary consensus on the diagnosis and management of patients with FAI syndrome. 22 panel members and 1 patient from 9 countries and 5 different specialties participated in a 1-day consensus meeting on 29 June 2016. Prior to the meeting, 6 questions were agreed on, and recent relevant systematic reviews and seminal literature were circulated. Panel members gave presentations on the topics of the agreed questions at Sports Hip 2016, an open meeting held in the UK on 27-29 June...
October 2016: British Journal of Sports Medicine
Joanne L Kemp, Ian Beasley
No abstract text is available yet for this article.
October 2016: British Journal of Sports Medicine
Matthew T Provencher, Hannah Kirby, Lucas S McDonald, Petar Golijanin, Daniel Gross, Kevin J Campbell, Lance LeClere, George Sanchez, Shawn Anthony, Anthony A Romeo
BACKGROUND: Pectoralis minor (PM) tightness has been linked to pain and dysfunction of the shoulder joint secondary to anterior tilt and internal rotation of the scapula, thus causing secondary impingement of the subacromial space. PURPOSE: To describe outcomes pertaining to nonoperative and operative treatment via surgical release of the PM tendon for pathologic PM tightness in an active population. STUDY DESIGN: Case series; Level of evidence, 4...
September 9, 2016: American Journal of Sports Medicine
Lena Theodorou Ehrlich, Nancy Mann Kulish, Margaret Ann Fitzpatrick Hanly, Marianne Robinson, Arden Rothstein
Utilizing detailed, in-depth material from supervisory hours from around the world (explored in End of Training Evaluation groups), this paper shows that supervisors are subject to multiple, diverse and, at times, ongoing intense countertransferences and impingements on their ability to evaluate candidates' progress. Multiple external and internal sources of these impingements are explored. It is suggested that supervisory countertransferences and their manifestation in parallel enactments remain under-recognized, their impact underappreciated, and the information they contain underutilized...
August 20, 2016: International Journal of Psycho-analysis
Ryan M Degen, Kara G Fields, C Sally Wentzel, Bethanne Bartscherer, Anil Ranawat, Struan H Coleman, Bryan T Kelly
INTRODUCTION: Femoroacetabular impingement (FAI) has been increasingly recognized in cutting sports including soccer, hockey and football. More recently, the prevalence among overhead athletes has also been recognized. The purpose of this study was to review impingement patterns, return-to-play rates and clinical outcome following arthroscopic treatment of FAI among high-level baseball players. METHODS: Between 2010 and 2014, 70 competitive baseball players (86 hips; age 22...
August 19, 2016: Physician and Sportsmedicine
Heung-Tae Jung, Deuk-Soo Hwang, Yoo-Sun Jeon, Pil-Sung Kim
A 16-year old male patient visited the hospital complaining of inguinal pain and internal snapping of right hip joint. In physical examination, the patient was presumed to be diagnosed femoroacetabular impingement (FAI) and acetabular labral tear. In radiologic evaluation, FAI and acetabular labral tear were identified and bony tumor associated with internal snapping was found on the posteromedial portion of the femoral neck. Despite of conservative treatment, there was no symptomatic improvement. So arthroscopic labral repair, osteoplasty and resection of bony tumor were performed...
March 2015: Hip Pelvis
Liang Zhang, Lin-Wei Chen, Wen-Jie Zhang, Chun-Ming Zhao, Bo Huang, Qing Yu, Bin Ni
OBJECTIVE: To evaluate the outcomes of treating patients with proximal and middle one-third humeral fractures treated with lateral distal tibial helical plate. MATERIALS AND METHODS: From June 2004 to January 2009, 12 patients (8 men, 4 women: average age: 46.8 years, range: 25-63) with proximal and middle one-third humeral fractures were treated with open reduction and internal fixation using lateral distal tibial helical plate. Standard anterior-posterior and lateral radiographs were obtained and evaluated...
December 2012: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
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