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patellar tendon

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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
#1
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/28533328/tendon-stem-progenitor-cells-regulate-inflammation-in-tendon-healing-via-jnk-and-stat3-signaling
#2
Solaiman Tarafder, Esther Chen, Yena Jun, Kristy Kao, Kun Hee Sim, Jungho Back, Francis Y Lee, Chang H Lee
Tendon stem/progenitor cells (TSCs) have been found in different anatomic locations and showed a promising regenerative potential. We identified a role of TSCs in the regulation of inflammation during healing of acute tendon injuries. Delivery of connective tissue growth factor (CTGF) into full-transected rat patellar tendons significantly increased the number of CD146(+) TSCs, leading to enhanced healing. In parallel, CTGF delivery significantly reduced the number of iNOS(+) M1 Mϕs and increased the expression of anti-inflammatory IL-10 at 2 d after surgery, with over 85% CD146(+) TSCs expressing IL-10...
May 22, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28532876/treatment-of-the-scar-after-arthroscopic-surgery-on-a-knee
#3
Jacobo Alvira-Lechuz, Mercedes Roca Espiau, Elena Alvira-Lechuz
The aim of this paper is to present a treatment for scars based on percutaneous traction. This is a structural technique in which movements are performed against the barriers detected in different planes. The stages of this technique are described in detail along with the results after applying it to a postarthroscopic scar on a knee. The active and passive mobility of femoro-tibial and femoro-patellar articulations improved substantially after the treatment, as verified by signs such as pain relief, greater flexibility, disappearance of inflammation and a major recovery of tissue elasticity...
April 2017: Journal of Bodywork and Movement Therapies
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
#4
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/28528818/patellar-tendon-vibration-reduces-the-increased-facilitation-from-quadriceps-to-soleus-in-post-stroke-hemiparetic-individuals
#5
Eric Maupas, Joseph-Omer Dyer, Sibele de Andrade Melo, Robert Forget
BACKGROUND: Stimulation of the femoral nerve in healthy people can facilitate soleus H-reflex and electromyography (EMG) activity. In stroke patients, such facilitation of transmission in spinal pathways linking the quadriceps and soleus muscles is enhanced and related to co-activation of knee and ankle extensors while sitting and walking. Soleus H-reflex facilitation can be depressed by vibration of the quadriceps in healthy people, but the effects of such vibration have never been studied on the abnormal soleus facilitation observed in people after stroke...
May 18, 2017: Annals of Physical and Rehabilitation Medicine
https://www.readbyqxmd.com/read/28515980/investigating-the-effectiveness-of-kinesio%C3%A2-taping-space-correction-method-in-healthy-adults-on-patellofemoral-joint-and-subcutaneous-space
#6
Katie J Lyman, Kassiann Keister, Kara Gange, Christopher D Mellinger, Thomas A Hanson
BACKGROUND: Limited quantitative, physiological evidence exists regarding the effectiveness of Kinesio® Taping methods, particularly with respect to the potential ability to impact underlying physiological joint space and structures. To better understand the impact of these techniques, the underlying physiological processes must be investigated in addition to the examination of more subjective measures related to pain in unhealthy tissues. HYPOTHESIS/PURPOSE: The purpose of this study was to determine whether the Kinesio® Taping Space Correction Method created a significant difference in patellofemoral joint space, as quantified by diagnostic ultrasound...
April 2017: International Journal of Sports Physical Therapy
https://www.readbyqxmd.com/read/28467583/repair-of-comminuted-fracture-of-the-lower-patellar-pole
#7
Elsayed Ibraheem Elsayed Massoud
BACKGROUND: Comminuted fracture of the lower patellar pole has characteristics of both patellar fracture and avulsion of the patellar tendon. Therefore, components of both injury types should be considered during treatment. None of the traditional techniques has proven sufficient alone. Currently described is technique that incorporates principles of osteosynthesis as well as repair of the patellar tendon. METHODS: Total of 23 patients with comminuted fracture of the lower patellar pole were treated surgically and prospectively followed for 24 months...
March 2017: Ulusal Travma Ve Acil Cerrahi Dergisi, Turkish Journal of Trauma & Emergency Surgery: TJTES
https://www.readbyqxmd.com/read/28467105/the-role-of-cone-beam-ct-in-the-study-of-symptomatic-total-knee-arthroplasty-tka-a-20-cases-report
#8
Cosimo Nardi, Roberto Buzzi, Roberto Molteni, Carlo Cossi, Chiara Lorini, Linda Calistri, Stefano Colagrande
OBJECTIVES: Evaluate the efficacy of Cone Beam Computed Tomography (CBCT) in the study of the patellar tilt angle and the rotational alignment of the femoral/tibial component, after total knee arthroplasty (TKA). Another aim of this study was to estimate how metallic artefacts impaired the detection of the periprosthetic bone structures and bordering tendon-muscle structures. METHODS: Twenty symptomatic TKAs were examined with CBCT by three independent observers...
May 3, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/28466182/trends-and-incidences-of-ligament-surgeries-and-osteotomies-of-the-knee-an-analysis-of-german-inpatient-records-2005-2013
#9
Christoph Domnick, Patric Garcia, Michael J Raschke, Johannes Glasbrenner, Georg Lodde, Christian Fink, Mirco Herbort
INTRODUCTION: In Germany most surgical procedures of the ligaments of the knee and correcting osteotomies of the knees are performed within an inpatient setting. The purpose of this study was to analyze the available data to assess epidemiological trends and incidences in inpatient knee joint surgery. MATERIALS AND METHODS: Approximately 154 million anonymized DRG inpatient records were collected by the German Federal Statistical Office between 2005 and 2013. These data were screened and analyzed for knee joint surgical ligamental procedures and osteotomies...
May 2, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28464800/effect-of-tendon-vibration-during-wide-pulse-neuromuscular-electrical-stimulation-nmes-on-the-decline-and-recovery-of-muscle-force
#10
Vanesa Bochkezanian, Robert U Newton, Gabriel S Trajano, Amilton Vieira, Timothy S Pulverenti, Anthony J Blazevich
BACKGROUND: Neuromuscular electrical stimulation (NMES) is commonly used to activate skeletal muscles and reverse muscle atrophy in clinical populations. Clinical recommendations for NMES suggest the use of short pulse widths (100-200 μs) and low-to-moderate pulse frequencies (30-50 Hz). However, this type of NMES causes rapid muscle fatigue due to the (non-physiological) high stimulation intensities and non-orderly recruitment of motor units. The use of both wide pulse widths (1000 μs) and tendon vibration might optimize motor unit activation through spinal reflex pathways and thus delay the onset of muscle fatigue, increasing muscle force and mass...
May 2, 2017: BMC Neurology
https://www.readbyqxmd.com/read/28463915/return-to-play-and-patient-satisfaction-after-acl-reconstruction-study-with-minimum-2-year-follow-up
#11
Benedict U Nwachukwu, Pramod B Voleti, Patricia Berkanish, Brenda Chang, Matthew R Cohn, Riley J Williams, Answorth A Allen
BACKGROUND: Return to play and patient satisfaction after anterior cruciate ligament reconstruction (ACLR) have been inconsistently studied. The purposes of this study were to (1) investigate rates and predictors of return to play after ACLR, (2) evaluate patient satisfaction after ACLR, and (3) analyze the relationship between return to play and satisfaction with the result of ACLR. METHODS: Eligible patients were active athletes included in an institutional ACL registry who had undergone ACLR and had been followed for a minimum of 2 years...
May 3, 2017: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/28461919/anterior-cruciate-ligament-reconstruction-principles-of-treatment
#12
REVIEW
Nikolaos K Paschos, Stephen M Howell
Anterior cruciate ligament (ACL) reconstruction is one of the most common procedures in sports medicine. Several areas of controversy exist in ACL tear management which have engaged surgeons and researchers in debates towards identifying an ideal approach for these patients.This instructional review discusses the principles of ACL reconstruction in an attempt to provide guidelines and initiate a critical thinking approach on the most common areas of controversy regarding ACL reconstruction.Using high-level evidence from the literature, as presented in randomised controlled trials, systematic reviews, and meta-analyses, operative versus conservative treatment, timing of surgery, and rehabilitation are discussed...
November 2016: EFORT Open Rev
https://www.readbyqxmd.com/read/28458846/spontaneous-superior-patellar-dislocation-in-young-age-case-report-and-reduction-technique
#13
Noman Jahangir, Muhammad Umar
Superior patellar dislocation is a very rare pathology, which happens in middle age. We report a case of spontaneous superior patellar dislocation, which occurred at 30 years of age. Differential diagnosis is patellar tendon rupture, which could be reliably excluded by clinical examination and radiographs. Reduction manoeuvres should be tried with diluted intra-articular local anaesthetic for hydrodilatation to gain mechanical advantage. Splinting the knee in gentle flexion is recommended if general anaesthetic is employed...
March 2017: Journal of Surgical Case Reports
https://www.readbyqxmd.com/read/28458784/evaluating-the-functional-results-and-complications-of-autograft-vs-allograft-use-for-reconstruction-of-the-anterior-cruciate-ligament-a-systematic-review
#14
REVIEW
Ojas Pujji, Nikita Keswani, Naomi Collier, Marion Black, Lucy Doos
The aim of our review is to identify the reconstruction technique that has a superior functional outcome and decreased number of complications for the anterior cruciate ligament (ACL). We have divided our review into 2 sections. Our primary question evaluates the functional results and complications of autografts compared to allografts for ACL reconstruction. Our subsidiary question evaluates the functional results and complications of bone-patellar tendon-bone (BPTB) autografts compared to hamstring tendon autografts...
February 20, 2017: Orthopedic Reviews
https://www.readbyqxmd.com/read/28456816/early-combined-arthroscopic-treatment-for-simultaneous-ruptures-of-the-patellar-tendon-and-the-anterior-cruciate-ligament-leads-to-good-radiological-results-and-patient-satisfaction
#15
REVIEW
Davide Cucchi, Alberto Aliprandi, Elisabetta Nocerino, Pietro Randelli
PURPOSE: Simultaneous rupture of the patellar tendon (PT) and the anterior cruciate ligament (ACL) is a relatively rare injury. This study offers a comprehensive review of the published reports and presents two cases of simultaneous PT and ACL rupture. METHODS: A systematic review of English literature was performed, and data from two patients who were referred to our institution with simultaneous PT and ACL rupture were collected. Both patients underwent primary arthroscopic ACL reconstruction combined with PT reconstruction and, 1 year after surgery, magnetic resonance imaging (MRI), clinical examination, strength measurement and functional assessment...
April 29, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28454185/patella-dislocation-in-children-and-adolescents
#16
Sven Höhne, Kristina Gerlach, Lars Irlenbusch, Mathias Schulz, Christian Kunze, Rainer Finke
Introduction Patellar dislocation is one of the commonest knee injuries in adolescents. Although treatment usually leads to good results, the influence of anatomical and functional factors on therapeutic strategy has been underestimated, especially in cases of recurrence. Patients and Methods The course of treatment has been analysed in 88 patients with 136 patellar dislocations. The importance of anatomical conditions was studied using X-ray and MRI findings. The treatment results were critically evaluated in comparison with current recommendations...
April 2017: Zeitschrift Für Orthopädie und Unfallchirurgie
https://www.readbyqxmd.com/read/28452077/structure-and-function-of-human-muscle-fibres-and-muscle-proteome-in-physically-active-older-men
#17
Lorenza Brocca, Jamie S McPhee, Emanuela Longa, Monica Canepari, Olivier Seynnes, Giuseppe De Vito, Maria Antonietta Pellegrino, Marco Narici, Roberto Bottinelli
Contradictory results have been reported on the impact of ageing on structure and functions of skeletal muscle fibres likely due to complex interplay between ageing and other phenomena such as disuse and diseases. Here we recruited healthy, physically and socially active young (YO) and elderly (EL) men in order to study aging per se without the confounding effects of impaired physical function. In vivo analyses of quadriceps and in vitro analyses of vastus lateralis muscle biopsies were performed. In EL subjects, our results show that: (i) quadriceps volume, maximum voluntary torque (MVC), and patellar tendon force (Ft) were significantly lower; (ii) muscle fibres went through significant atrophy and impairment of specific force (Po/CSA) and unloaded shortening velocity (Vo); (iii) myosin/actin ratio and myosin content in individual muscle fibres were not altered; (iv) muscle proteome went through quantitative adaptations, namely an up-regulation of the content of several groups of proteins among which myofibrillar proteins and antioxidant defence systems; (v) muscle proteome went through qualitative adaptations, namely phosphorylation of several proteins, including Myosin Light Chain-2 slow and Troponin T and carbonylation of Myosin Heavy Chains...
April 27, 2017: Journal of Physiology
https://www.readbyqxmd.com/read/28444581/corr-insights-%C3%A2-hamstring-autograft-versus-patellar-tendon-autograft-for-acl-reconstruction-is-there-a-difference-in-graft-failure-rate-a-meta-analysis-of-47-613-patients
#18
Thomas J Gill
No abstract text is available yet for this article.
April 25, 2017: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/28419808/outcomes-after-1-stage-versus-2-stage-revision-anterior-cruciate-ligament-reconstruction
#19
Justin J Mitchell, Jorge Chahla, Chase S Dean, Mark Cinque, Lauren M Matheny, Robert F LaPrade
BACKGROUND: Revision anterior cruciate ligament reconstruction (ACLR) is becoming increasingly common as the number of primary ACLR cases continues to rise. Despite this, there are limited data on the outcomes of revision ACLR and even less information specifically addressing the differences in 1-stage revision reconstruction versus those performed in a 2-stage fashion after primary reconstruction. PURPOSE: To compare the outcomes, patient satisfaction, and failure rates of 1-stage versus 2-stage revision ACLR...
April 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28410739/changes-in-tendon-spatial-frequency-parameters-with-loading
#20
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
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