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Patellar tendinopathy

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https://www.readbyqxmd.com/read/28888475/promoter-methylation-status-of-the-timp2-and-adamts4-genes-and-patellar-tendinopathy
#1
Louis Y El Khoury, Rebecca Rickaby, Tom Samiric, Stuart M Raleigh
OBJECTIVES: Patellar tendinopathy (PT) is a debilitating and prevalent condition that tends to affect those who are physically active or engaged in jumping sports. Although tendinopathies are known to have a genetic basis, the role of DNA methylation as an epigenetic factor and risk determinant for human PT has never been described. We sought to determine whether differences existed between the methylation profiles of both the TIMP2 and ADAMTS4 gene promoter sequences in a cohort of males having undergone surgery for patellar tendinopathy compared to controls...
September 1, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28875153/three-months-of-progressive-high-load-versus-traditional-low-load-strength-training-among-patients-with-rotator-cuff-tendinopathy-primary-results-from-the-double-blind-randomized-controlled-roctex-trial
#2
Kim Gordon Ingwersen, Steen Lund Jensen, Lilli Sørensen, Hans Ri Jørgensen, Robin Christensen, Karen Søgaard, Birgit Juul-Kristensen
BACKGROUND: Progressive high-load exercise (PHLE) has led to positive clinical results in patients with patellar and Achilles tendinopathy. However, its effects on rotator cuff tendinopathy still need to be investigated. PURPOSE: To assess the clinical effects of PHLE versus low-load exercise (LLE) among patients with rotator cuff tendinopathy. STUDY DESIGN: Randomized controlled trial; Level of evidence, 1. METHODS: Patients with rotator cuff tendinopathy were recruited and randomized to 12 weeks of PHLE or LLE, stratified for concomitant administration of corticosteroid injection...
August 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28789628/patellar-tendinopathy-in-young-elite-soccer-clinical-and-sonographical-analysis-of-a-german-elite-soccer-academy
#3
Gerrit Bode, Thorsten Hammer, N Karvouniaris, M J Feucht, L Konstantinidis, N P Südkamp, A Hirschmüller
BACKGROUND: The prevalence of patellar tendinopathy is elevated in elite soccer compared to less explosive sports. While the burden of training hours and load is comparably high in youth elite players (age < 23 years), little is known about the prevalence of patellar tendinopathy at this age. There is only little data available on the influence of age, the amount of training, the position on the field, as well as muscular strength, range of motion, or sonographical findings in this age group...
August 8, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28704344/effects-of-altering-trunk-position-during-landings-on-patellar-tendon-force-and-pain
#4
Rodrigo Scattone Silva, Craig R Purdam, Angela M Fearon, Wayne A Spratford, Claire Kenneally-Dabrowski, Peter Preston, Fábio V Serrão, James E Gaida
PURPOSE: To verify the immediate effects of altering sagittal plane trunk position during jump-landings on lower limb biomechanics, patellar tendon force and pain of athletes with and without patellar tendinopathy. METHODS: Twenty-one elite male athletes were categorized into 3 groups, athletes with patellar tendinopathy (TG, n=7), asymptomatic athletes with patellar tendon abnormalities (AG, n=7) and asymptomatic athletes without tendon abnormalities (CG, n=7)...
July 12, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28698221/patellar-and-achilles-tendinopathies-are-predominantly-peripheral-pain-states-a-blinded-case-control-study-of-somatosensory-and-psychological-profiles
#5
Melanie L Plinsinga, Cornelis P van Wilgen, Michel S Brink, Viana Vuvan, Aoife Stephenson, Luke J Heales, Rebecca Mellor, Brooke K Coombes, Bill T Vicenzino
STUDY DESIGN: Case-control design. BACKGROUND: Tendinopathy is characterised by pain on tendon loading. In persistent cases of upper limb tendinopathy, it is frequently associated with central nervous system sensitisation, whereas less commonly linked in the case of persistent lower limb tendinopathies. OBJECTIVES: Compare somatosensory and psychological profiles of participants with persistent patellar (PT) and Achilles tendinopathies (AT) with pain-free controls...
July 11, 2017: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/28580266/open-patellar-tendon-tenotomy-debridement-and-repair-technique-augmented-with-platelet-rich-plasma-for-recalcitrant-patellar-tendinopathy
#6
Bradley M Kruckeberg, Jorge Chahla, Marcio B Ferrari, George Sanchez, Gilbert Moatshe, Robert F LaPrade
Patellar tendinopathy is a disabling condition that frequently affects the athletic population, especially athletes undergoing repetitive impact forces as a result of jumping and landing activities. Most cases are initially treated conservatively, but if symptoms persist, surgical treatment is warranted. Options for surgical treatment include both arthroscopic and open techniques. The purpose of this Technical Note is to detail our open patellar tendon tenotomy, debridement, and repair technique augmented with platelet-rich plasma...
April 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/28574416/richly-innervated-soft-tissues-covering-the-superficial-aspect-of-the-extensor-origin-in-patients-with-chronic-painful-tennis-elbow-implication-for-treatment
#7
C Spang, H Alfredson
BACKGROUND: Tennis elbow is difficult to treat. The results of surgical treatments are not convincing. Treatment studies on Achilles and patellar tendinopathy targeting the richly innervated and vascularized soft tissues outside the tendon have shown promising outcomes. The innervation patterns in the fibrous/fatty tissues superficially to the elbow extensor origin have not been clarified. METHODS: Nine tissue specimens from the fibrous/fatty tissue covering the extensor origin was taken from seven patients (mean age: 45 years) undergoing surgical treatment for chronic painful tennis elbow...
June 1, 2017: Journal of Musculoskeletal & Neuronal Interactions
https://www.readbyqxmd.com/read/28551203/single-limb-landing-biomechanics-are-altered-and-patellar-tendinopathy-related-pain-is-reduced-with-acute-infrapatellar-strap-application
#8
Adam B Rosen, Jupil Ko, Cathleen N Brown
BACKGROUND: Patellar tendinopathy, a common condition of the knee, is often treated with patellar tendon straps to control pain during dynamic activity. Little is known regarding their effect on pain, landing kinematics and kinetics with their application. The purpose of this study was to determine if patellar tendon straps influenced pain, kinematics at landing and ground reaction forces in individuals with patellar tendinopathy versus healthy controls. METHODS: Thirty participants with patellar tendinopathy and 30 controls participated...
May 24, 2017: Knee
https://www.readbyqxmd.com/read/28549903/effect-of-a-patellar-strap-on-the-joint-position-sense-of-the-symptomatic-knee-in-athletes-with-patellar-tendinopathy
#9
Astrid J de Vries, Inge van den Akker-Scheek, Svenja L Haak, Ron L Diercks, Henk van der Worp, Johannes Zwerver
OBJECTIVES: The primary aim of this study was to investigate the effect of a patellar strap on the proprioception of the symptomatic leg in PT. Secondary aims were to investigate a possible difference in effectiveness between athletes with high and low proprioceptive acuity, and whether predictors of effectiveness could be found. DESIGN: Randomised cross-over pilot study. METHODS: 24 athletes with PT (age 27.3±9.0, VISA-P 50.6±11.2) performed a joint position sense test with and without a patellar strap...
April 25, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28532478/study-protocol-a-double-blind-randomised-control-trial-of-high-volume-image-guided-injections-in-achilles-and-patellar-tendinopathy-in-a-young-active-population
#10
Robert M Barker-Davies, Alastair Nicol, I McCurdie, James Watson, Polly Baker, Patrick Wheeler, Daniel Fong, Mark Lewis, Alexander N Bennett
BACKGROUND: Chronic tendinopathy is a significant problem particularly in active populations limiting sporting and occupational performance. The prevalence of patellar tendinopathy in some sports is near 50% and the incidence of lower limb tendinopathy is 1.4% p.a. in the UK Military. Management includes isometric, eccentric, heavy slow resistance exercises and extracorporeal shockwave therapy (ESWT). Often these treatments are inadequate yet there is no good evidence for injection therapies and success rates from surgery can be as low as 50%...
May 22, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28410739/changes-in-tendon-spatial-frequency-parameters-with-loading
#11
Stephen J Pearson, Aaron J Engel, Gregory R Bashford
To examine and compare the loading related changes in micro-morphology of the patellar tendon. Fifteen healthy young males (age 19±3yrs, body mass 83±5kg) were utilised in a within subjects matched pairs design. B mode ultrasound images were taken in the sagittal plane of the patellar tendon at rest with the knee at 90° flexion. Repeat images were taken whilst the subjects were carrying out maximal voluntary isometric contractions. Spatial frequency parameters related to the tendon morphology were determined within regions of interest (ROI) from the B mode images at rest and during isometric contractions...
April 4, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/28391723/the-impact-of-patellar-tendinopathy-on-sports-and-work-performance-in-active-athletes
#12
Astrid J De Vries, Wendy Koolhaas, Johannes Zwerver, Ron L Diercks, Kari Nieuwenhuis, Henk Van Der Worp, Sandra Brouwer, Inge Van Den Akker-Scheek
Greater insight into sports and work performance of athletes with patellar tendinopathy (PT) will help establish the severity of this common overuse injury. Primary aim of this study is to investigate the impact of PT on sports and work performance. Seventy seven active athletes with PT (50 males; age 28.1 ± 8.2 years; Victorian Institute of Sports Assessment Patella 56.4 ± 12.3) participated in this survey. Sports performance, work ability and work productivity were assessed using the Oslo Sports Trauma Research Center overuse injury questionnaire, the single-item Work Ability Index and the Quantity and Quality questionnaire, respectively...
April 10, 2017: Research in Sports Medicine
https://www.readbyqxmd.com/read/28376759/prognostic-value-of-mri-in-arthroscopic-treatment-of-chronic-patellar-tendinopathy-a-prospective-cohort-study
#13
Peter Ogon, Kaywan Izadpanah, Helge Eberbach, Gernot Lang, Norbert P Südkamp, Dirk Maier
BACKGROUND: To date, prognostic outcome factors for patients undergoing arthroscopic treatment due to chronic patellar tendinopathy (PT) are lacking. The purpose of this study was to investigate whether preoperatively assessed MRI parameters might be of prognostic value for prediction of functional outcome and return to sports in arthroscopic treatment of chronic PT. METHODS: A prospective cohort study was conducted including 30 cases (4 female and 24 male competitive athletes) undergoing arthroscopic patellar release (APR) due to chronic PT...
April 4, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28353085/alterations-in-mechanical-properties-of-the-patellar-tendon-is-associated-with-pain-in-athletes-with-patellar-tendinopathy
#14
W C Lee, Z J Zhang, L Masci, G Y F Ng, Siu Ngor Fu
PURPOSE: To compare tendon strain and stiffness between athletes with patellar tendinopathy and healthy controls, and explore whether the intensity of pain and dysfunction were related to the mechanical properties of the tendon. METHODS: Thirty-four male athletes with patellar tendinopathy and 13 healthy controls matched by age and activity levels were recruited. The in vivo mechanical properties of the patellar tendon were examined by ultrasonography and dynamometry...
May 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/28263448/bicomponent-ultrashort-echo-time-t2-analysis-for-assessment-of-patients-with-patellar-tendinopathy
#15
Richard Kijowski, John J Wilson, Fang Liu
PURPOSE: To compare bicomponent ultrashort echo time (UTE) T2* parameters of patellar tendon between healthy volunteers and patients with patellar tendinopathy. MATERIALS AND METHODS: This study was performed with Institutional Review Board approval and with all subjects signing informed consent. A UTE- T2* mapping sequence was performed at 3.0T on the knees of 10 healthy volunteers and in 11 patients with patellar tendinopathy. The UTE- T2* relaxation times of the fast relaxing macromolecular bound water component ( T2*F) and the slow relaxing bulk water component ( T2*S) and the fraction of the fast relaxing macromolecular bound water component (FF ) of patellar tendon were measured in all subjects...
March 6, 2017: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/28194391/simultaneous-bilateral-patellar-tendon-rupture
#16
Diogo Lino Moura, José Pedro Marques, Francisco Manuel Lucas, Fernando Pereira Fonseca
Bilateral patellar tendon rupture is a rare entity, often associated with systemic diseases and patellar tendinopathy. The authors report a rare case of a 34-year-old man with simultaneous bilateral rupture of the patellar tendon caused by minor trauma. The patient is a retired basketball player with no past complaints of chronic knee pain and a history of steroid use. Surgical management consisted in primary end-to-end tendon repair protected temporarily with cerclage wiring, followed by a short immobilization period and intensive rehabilitation program...
January 2017: Revista Brasileira de Ortopedia
https://www.readbyqxmd.com/read/28160657/patellar-tendon-straps-decrease-pre-landing-quadriceps-activation-in-males-with-patellar-tendinopathy
#17
Adam B Rosen, Jupil Ko, Kathy J Simpson, Cathleen N Brown
OBJECTIVE: To determine if patellar tendon straps altered quadriceps' muscle activity during a drop-jump landing in males with and without patellar tendinopathy. DESIGN: Case-control. SETTINGS: Biomechanics Research Laboratory. PARTICIPANTS: Twenty recreationally-active males participated: ten (age = 21.3 ± 2.4 years, height = 182.8 ± 5.3 cm, mass = 81.7 ± 8.6 kg) with patellar tendinopathy; ten (age = 22...
March 2017: Physical Therapy in Sport
https://www.readbyqxmd.com/read/28159566/a-systematic-review-of-self-administered-questionnaires-for-the-functional-assessment-of-patients-with-knee-disabilities-adapted-into-spanish
#18
S Gómez-Valero, F García-Pérez, M T Flórez-García, J C Miangolarra-Page
OBJECTIVE: The aim of this study was to conduct a systematic review of self-administered knee-disability functional assessment questionnaires adapted to Spanish, analysing the quality of the transcultural adaptation procedure and the psychometric properties of the new version. MATERIAL AND METHODS: A search was conducted in the main biomedical databases to find knee-function assessment scales adapted into Spanish, in order to assess their questionnaire adaptation process as well as their psychometric properties...
January 31, 2017: Revista Española de Cirugía Ortopédica y Traumatología
https://www.readbyqxmd.com/read/28151759/patellar-tendinopathy-and-potential-risk-factors-an-international-database-of-cases-and-controls
#19
Sarah Morton, Sean Williams, Xavier Valle, David Diaz-Cueli, Peter Malliaras, Dylan Morrissey
OBJECTIVES: Numerous risk factors have been identified for patellar tendinopathy (PT), often in small population studies. The aim was to use an international online questionnaire to generate a large database and identify significant risk factors. DESIGN: Case-control study. SETTING: Private practice and sporting teams recruited from England, Spain, and Italy with the questionnaire available in all 3 languages (equivalence between online and self-administration shown previously)...
September 2017: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/28138766/-evidence-based-therapy-for-tendinopathy-of-the-knee-joint-which-forms-of-therapy-are-scientifically-proven
#20
H Horstmann, J D Clausen, C Krettek, T S Weber-Spickschen
Tendinopathy in the region of the knee joint is a common pathological disorder. People active in sports, in particular, have a high probability of suffering from tendinopathy. Despite its high clinical relevance, the level of evidence of therapy options for tendinopathy in the knee region differs greatly. This review gives an overview of current evidence levels for therapy options in tendinopathy of the quadriceps, patellar and pes anserinus insertion tendons as well as of the distal iliotibial tract tendon...
March 2017: Der Unfallchirurg
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