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tendon rehabilitation

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https://www.readbyqxmd.com/read/28619447/similar-movements-are-associated-with-drastically-different-muscle-contraction-velocities
#1
Daniel A Hagen, Francisco J Valero-Cuevas
We investigated how kinematic redundancy interacts with the neurophysiological control mechanisms required for smooth and accurate, rapid limb movements. Biomechanically speaking, tendon excursions are over-determined because the rotation of few joints determines the lengths and velocities of many muscles. But how different are the muscle velocity profiles induced by various, equally valid hand trajectories? We used an 18-muscle sagittal-plane arm model to calculate 100,000 feasible shoulder, elbow, and wrist joint rotations that produced valid basketball free throws with different hand trajectories, but identical initial and final hand positions and velocities...
May 31, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/28619382/does-early-motion-lead-to-a-higher-failure-rate-or-better-outcomes-after-arthroscopic-rotator-cuff-repair-a-systematic-review-of-overlapping-meta-analyses
#2
REVIEW
Bryan M Saltzman, William A Zuke, Beatrice Go, Randy Mascarenhas, Nikhil N Verma, Brian J Cole, Anthony A Romeo, Brian Forsythe
BACKGROUND: The aims of the study were as follows: to perform a systematic review of meta-analyses comparing "early motion" and "delayed motion" after arthroscopic rotator cuff repair; to provide a framework to analyze the best available evidence to develop recommendations; and to identify gaps where suggestions could be made for future investigations. METHODS: Literature searches were performed to identify meta-analyses examining arthroscopic rotator cuff repair with early-motion vs...
June 12, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28616759/is-dual-semitendinosus-allograft-stronger-than-turndown-for-achilles-tendon-reconstruction-an-in-vitro-analysis
#3
Michael C Aynardi, Lara C Atwater, Roshan Melvani, Brent G Parks, Adrian G Paez, Stuart D Miller
BACKGROUND: Large Achilles tendon defects pose a treatment challenge. The standard treatment with a turndown flap requires a large extensile incision, puts the sural nerve at risk, and demands slow, careful rehabilitation. Dual allograft semitendinosus reconstruction is a new clinical alternative that has the theoretical advantages of a smaller incision, less dissection, and a stronger construct that may allow for faster rehabilitation. QUESTIONS/PURPOSES: In a cadaver biomechanical model, we compared the dual allograft semitendinosus reconstruction with the myofascial turndown in terms of (1) mechanical strength and resistance to deformation and (2) failure mechanisms in reconstruction of large segmental Achilles defects...
June 14, 2017: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/28607938/biomechanical-head-to-head-comparison-of-2-sutures-and-the-giftbox-versus-bunnell-techniques-for-midsubstance-achilles-tendon-ruptures
#4
Rufus O Van Dyke, Sejul A Chaudhary, Gregory Gould, Roman Trimba, Richard T Laughlin
BACKGROUND: Acute midsubstance Achilles tendon ruptures are a common orthopaedic problem for which the optimal repair technique and suture type remain controversial. Head-to-head comparisons of current fixation constructs are needed to establish which stitch/suture combination is most biomechanically favorable. HYPOTHESIS: Of the tested fixation constructs, Giftbox repairs with Fiberwire will exhibit superior stiffness and strength during biomechanical testing. STUDY DESIGN: Controlled laboratory study...
May 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28607322/assessment-of-the-mechanical-properties-of-the-muscle-tendon-unit-by-supersonic-shear-wave-imaging-elastography-a-review
#5
Kelly Mônica Marinho E Lima, José Francisco Silva Costa Júnior, Wagner Coelho de Albuquerque Pereira, Liliam Fernandes de Oliveira
This review aimed to describe the state of the art in muscle-tendon unit (MTU) assessment by supersonic shear wave imaging (SSI) elastography in states of muscle contraction and stretching, during aging, and in response to injury and therapeutic interventions. A consensus exists that MTU elasticity increases during passive stretching or contraction, and decreases after static stretching, electrostimulation, massage, and dry needling. There is currently no agreement regarding changes in the MTU due to aging and injury...
April 15, 2017: Ultrasonography
https://www.readbyqxmd.com/read/28603874/impact-of-rest-duration-on-achilles-tendon-structure-and-function-following-isometric-training
#6
C M Waugh, T Alktebi, A de Sa, A Scott
Intervention programs are often sought to strengthen the Achilles tendon (AT) due to its high injury rate. Long rest periods between loading cycles have been found to increase collagen synthesis by tenocytes, suggesting rest duration may be important for tendon adaptation in vivo, however exercise programs comparing long and short rest duration have not been directly compared. Fourteen adults completed a 12-week progressive training intervention; training sessions consisted of 5 x 10 isometric plantarflexion contractions each of 3-s duration performed at 90% of MVC three times weekly...
June 12, 2017: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/28603355/biomechanical-analysis-of-infinity-rehabilitation-method-for-treatment-of-low-back-pain
#7
Matej Daniel, Michaela Tomanová, Jana Hornová, Iva Novotná, Lenka Lhotská
[Purpose] Low back pain is a pervasive problem in modern societies. Physical rehabilitation in treatment of low back pain should reduce pain, muscle tension and restore spine stability and balance. The INFINITY® rehabilitation method that is based on a figure of eight movement pattern was proved to be effective in low back pain treatment. The aim of the paper is to estimate the effect of a figure of eight motion on the L5/S1 load and lumbar spine muscle activation in comparison to other motion patterns. [Subjects and Methods] Three-dimensional model of lumbar spine musculoskeletal system is used to simulate effect of various load motion pattern induced by displacement of the center of gravity of the upper body...
May 2017: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/28594504/achilles-tendon-rupture-in-elite-athletes
#8
Michael Isiah Sandlin, Cyrus E Taghavi, Timothy P Charlton
The management of acute Achilles tendon rupture in elite athletes is a current area of clinical controversy. Recent studies have reported near-equivocal outcomes in patients who undergo either nonsurgical or surgical treatment of Achilles tendon rupture; however, similar functional outcomes may not be observed in elite athletes who are at the highest levels of athletic performance and undergo nonsurgical or surgical treatment of Achilles tendon rupture. Surgeons should understand the risks and benefits of nonsurgical and surgical management of acute Achilles tendon rupture...
February 15, 2017: Instructional Course Lectures
https://www.readbyqxmd.com/read/28582263/counting-grasping-action-using-force-myography-an-exploratory-study-with-healthy-individuals
#9
Zhen Gang Xiao, Carlo Menon
BACKGROUND: Functional arm movements generally require grasping an object. The possibility of detecting and counting the action of grasping is believed to be of importance for individual with motor function deficits of the arm, as it could be an indication of the number of the functional arm movements performed by the individuals during rehabilitation. In this exploratory work, the feasibility of using armbands recording radial displacements of forearm muscles and tendons (ie, force myography, FMG) to estimate hand grasping with healthy individuals was investigated...
May 16, 2017: JMIR Rehabil Assist Technol
https://www.readbyqxmd.com/read/28579818/healing-of-achilles-tendon-partial-tear-following-focused-shockwave-a-case-report-and-literature-review
#10
Yu-Chun Hsu, Wei-Ting Wu, Ke-Vin Chang, Der-Sheng Han, Li-Wei Chou
Achilles tendinopathy is a common cause of posterior heel pain and can progress to partial tendon tear without adequate treatment. Effects of traditional treatments vary, and many recent reports focus on the use of extracorporeal shockwave therapy (ESWT) for Achilles tendinopathy but not for Achilles tendon partial tear. Here, we report the case of a 64-year-old female suffering from severe left heel pain for half a year. All treatment and rehabilitation were less effective until ESWT was applied. Each course of focused shockwave therapy included 2500 shots with energy flux density from 0...
2017: Journal of Pain Research
https://www.readbyqxmd.com/read/28559756/multimodal-care-in-the-management-of-a-patient-with-chronic-tendinopathy-of-the-biceps-femoris-a-case-report
#11
Brett R Martin
OBJECTIVE: The purpose of this case report was to describe the use of dry needling in conjunction with auricular acupuncture, core exercises, and light aerobic activity for treating chronic tendinopathy of the biceps femoris. CLINICAL FEATURES: A 30-year-old white female presented with chronic biceps femoris tendinopathy. The injury had occurred 18 months prior while training for a triathlon. Active stretching of her right biceps femoris while standing with her feet 6 inches apart aggravated the pain at the origin in the right tendon of the biceps femoris at 0 degrees of movement...
June 2017: Journal of Chiropractic Medicine
https://www.readbyqxmd.com/read/28559670/manual-therapy-and-eccentric-exercise-in-the-management-of-achilles-tendinopathy
#12
Dhinu J Jayaseelan, Michael Kecman, Daniel Alcorn, Josiah D Sault
Chronic Achilles tendinopathy (AT) is an overuse condition seen among runners. Eccentric exercise can decrease pain and improve function for those with chronic degenerative tendon changes; however, some individuals have continued pain requiring additional intervention. While joint mobilization and manipulation has not been studied in the management in Achilles tendinopathy, other chronic tendon dysfunction, such as lateral epicondylalgia, has responded well to manual therapy (MT). Three runners were seen in physical therapy (PT) for chronic AT...
May 2017: Journal of Manual & Manipulative Therapy
https://www.readbyqxmd.com/read/28554872/safe-window-for-the-volar-needle-approach-to-pronator-quadratus-using-ultrasonography
#13
Seok Jun Lee, Ki Hoon Kim, In Yae Cheong, ByungKyu Park, Dong Hwee Kim
OBJECTIVE: To investigate PQ anatomy and determine the proper volar needle insertion point based on landmarks, the tip of the ulnar styloid (U line), and the ulnar margin of the palmaris longus tendon (uPL) using ultrasonography. DESIGN: Descriptive study. SETTING: Department of Physical Medicine & Rehabilitation, Korea University, Seoul, Korea SUBJECTS: Twenty-five healthy subjects (13 men, 12 women; 50 forearms) INTERVENTIONS: Ultrasonography MAIN OUTCOME MEASURES: The proximal and distal volar surface points of origin (O_prox and O_dist), the proximal and distal insertion sites (I_prox and I_dist), and the center of the PQ (PQ_M) were determined...
May 26, 2017: Archives of Physical Medicine and Rehabilitation
https://www.readbyqxmd.com/read/28552932/biomechanical-properties-of-alternative-suture-technique-for-flexor-tendon-repair
#14
Tomasz Andrzejewski, Piotr Czarnecki, Mikołaj Dąbrowski, Robert Spławski, Piotr Rogala, Leszek Romanowski
PURPOSE: Flexor injuries are most common in the hand and require special attention and experience from the surgeon. Both quality and technique affect the stability of the suture. The selection of the optimum method will influence the process of rehabilitation. The aim of this study was to compare three different suture techniques based on the strength, depending on the method of breakage, i.e., axial or pulley load. METHODS: The study was divided into six sessions...
2017: Acta of Bioengineering and Biomechanics
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
#15
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/28535849/calf-endurance-and-achilles-tendon-structure-in-classical-ballet-dancers
#16
Jennifer A Zellers, Katrina van Ostrand, Karin Grävare Silbernagel
Optimal lower leg function is critical for ballet dancers to meet their occupational requirements. Achilles tendon injury is particularly detrimental to ballet dancers. While standardized measures have been validated and incorporated into clinical practice for use in people with Achilles tendon injury, normative ranges specific to the dancer population have not been described. The purpose of this pilot study was to observe the performance of pre-professional ballet students and professional ballet dancers on a well-established test battery for lower leg functional performance as well as ultra-sonographic evaluation of the structure of their Achilles tendons...
June 15, 2017: Journal of Dance Medicine & Science
https://www.readbyqxmd.com/read/28530504/functional-recovery-after-rotator-cuff-repair-the-role-of-biceps-surgery
#17
Bernardo Gialanella, Francesco Grossetti, Marina Mazza, Laura Danna, Laura Comini
CONTEXT: Surgical cuff repair is indicated in full-thickness rotator cuff tear when non-operative treatment fails. Surgical cuff repair can comprehend surgery of long head of the biceps when concomitant biceps pathology is present. However, the studies executed up to now do not have yet clearly defined if additional biceps surgery affects the shoulder functionality in patients who underwent rotator cuff repair. OBJECTIVE: The aim of this study is to verify if the concomitant biceps surgery prejudices the shoulder functionality during the short-term period in rotator cuff repair patients...
May 22, 2017: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/28522238/biomechanical-comparison-of-four-coupled-fixation-systems-for-acl-reconstruction-with-bone-socket-or-full-tunnel-on-the-tibial-side
#18
Edoardo Monaco, Mattia Fabbri, Riccardo Maria Lanzetti, Andrea Del Duca, Luca Labianca, Andrea Ferretti
BACKGROUND: To compare in an animal model the biomechanical properties of four coupled fixation devices currently used in ACL reconstruction. Three out of four devices used a full tibial tunnel with an interference screw, while the other one system used a tibial socket and an adjustable loop suspension device. The null hypothesis is that there are no biomechanical differences between all the techniques tested. METHODS: Thirty two femur-graft-tibia complexes were mounted on a tensile machine using bovine digital extensor tendons, porcine knees and four different fixation device combinations: After a preconditioning with a tensile load of 90N for five minutes, 1000cycles between 0 and 150N were applied to the complex before the final pulled to failure...
May 15, 2017: Knee
https://www.readbyqxmd.com/read/28514131/-treatment-of-achilles-tendon-ruptures
#19
Lior Laver, Viktor Feldman, Ezequiel Palmanovich, Eyal Yaacobi, Niv Marom, Omer Mei-Dan
Achilles tendon ruptures cause considerable morbidity and functionality reduction. There is lack of consensus regarding the best option for treatment following acute Achilles tendon rupture. Recent studies have failed to show substantial difference in outcome following conservative or operative treatment using an early active rehabilitation program. Meta-analyses have shown that conservative management has increased the risk of re-rupture, whereas operative intervention carries risks of complications related to the wound and iatrogenic nerve injury...
July 2016: Harefuah
https://www.readbyqxmd.com/read/28509763/achilles-tendon-load-is-progressively-increased-with-reductions-in-walking-speed
#20
Torsten Brauner, Philippe Pourcelot, Nathalie Crevier-Denoix, Thomas Horstmann, Scott C Wearing
INTRODUCTION: Achilles tendon rehabilitation protocols commonly recommend a gradual increase in walking speed to progressively intensify tendon loading. This study used transmission-mode ultrasound to evaluate the influence of walking speed on loading of the human Achilles tendon in vivo. METHODS: Axial transmission speed of ultrasound was measured in the right Achilles tendon of 33 adults (mean ± SD; age, 29 ± 3 years; height, 1.725 ± 0.069 m; weight, 71.4 ± 19...
May 15, 2017: Medicine and Science in Sports and Exercise
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