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https://www.readbyqxmd.com/read/29455512/-rapture-of-the-patellar-ligament-and-the-contralateral-femoral-quadriceps-tendon-in-uremia-patients
#1
Hong-Tao Li, De-Bao Zhang, Dong Dong, Gui-Shan Gu
No abstract text is available yet for this article.
August 25, 2017: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/29453931/comparison-of-return-to-pre-injury-sport-after-10-mm-size-bone-patellar-tendon-bone-bptb-versus-8-mm-hamstring-anterior-cruciate-ligament-reconstruction-a-retrospective-study-with-a-two-year-follow-up
#2
Rimtautas Gudas, Rokas Jurkonis, Alfredas Smailys
BACKGROUND The aim of this study was to evaluate the reconstruction of a torn anterior cruciate ligament (ACL) with 10 mm diameter BPTB (bone-patellar tendon-bone) autograft versus 8 mm HT (hamstring tendon) autografts, to compare the ability to restore pre-injury sports activities and reduce revision risk after these procedures. MATERIAL AND METHODS A prospective clinical review was performed to compare results of patients who underwent primary anatomical ACLR with 10 mm BPTB autografts with patients who underwent 8 mm diameter HT autografts, between January 2011 and January 2014...
February 17, 2018: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/29447959/effects-of-maturation-and-advanced-glycation-on-tensile-mechanics-of-collagen-fibrils-from-rat-tail-and-achilles-tendons
#3
Rene B Svensson, Stuart T Smith, Patrick J Moyer, S Peter Magnusson
Connective tissues are ubiquitous throughout the body and consequently affect the function of many organs. In load bearing connective tissues like tendon, the mechanical functionality is provided almost exclusively by collagen fibrils that in turn are stabilized by covalent cross-links. Functionally distinct tendons display different cross-link patterns, which also change with maturation, but these differences have not been studied in detail at the fibril level. In the present study, a custom built nanomechanical test platform was designed and fabricated to measure tensile mechanics of individual fibrils from rat tendons...
February 12, 2018: Acta Biomaterialia
https://www.readbyqxmd.com/read/29440951/double-whip-stitch-for-free-graft-femoral-fixation-in-acl-reconstruction-experimental-study-on-porcine-model
#4
Cristian Tudor Buescu, Cristian Mircea Dudescu, Sergiu Caterev, Dan Gheorghe Osvald Lucaciu
Background and aims: Using free quadriceps tendon graft for anterior cruciate ligament (ACL) reconstruction has become more popular in the last years due to the low morbidity at the harvest site and biomechanical and structural properties similar to other types of graft (hamstring and patellar tendons). As long as the tibial tunnel fixation with interference screws is considered the standard fixation, femoral fixation is still an open subject. Even though the most common type of femoral tunnel fixation are the cortical suspension devices, the type of suture used for tying the graft to the loop is still evaluated and discussed...
2018: Clujul Medical (1957)
https://www.readbyqxmd.com/read/29438635/twenty-year-follow-up-study-comparing-operative-versus-nonoperative-treatment-of-anterior-cruciate-ligament-ruptures-in-high-level-athletes
#5
Daan T van Yperen, Max Reijman, Eline M van Es, Sita M A Bierma-Zeinstra, Duncan E Meuffels
BACKGROUND: An anterior cruciate ligament (ACL) rupture has major consequences at midterm follow-up, with an increasing chance of developing an old knee in a young patient. The long-term (≥20 years) effects of the operative and nonoperative treatment of ACL ruptures are still unclear. PURPOSE: To compare the long-term treatment outcomes of operative versus nonoperative treatment of ACL ruptures in high-level athletes. STUDY DESIGN: Cohort study; Level of evidence, 2...
February 1, 2018: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29437710/total-patellectomy-with-extensor-mechanism-reconstruction-following-pathological-fracture-due-to-patellar-ewing-s-sarcoma
#6
Eyad Alqasim, Abdulla Aljowder, Naji Alammari, Amani A Joudeh
A young patient presented with a progressive right knee pain and swelling that was worse on ambulation. Following appropriate investigations, he was confirmed having Ewing's sarcoma of the right patella. Two cycles of chemotherapy were initiated before he sustained a fall and a resultant pathological patellar fracture. He finally underwent a total right patellectomy and extensor mechanism reconstruction using Achilles tendon allograft in an attempt to eradicate the disease and salvage his knee extensor mechanism...
February 7, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29433467/effect-of-tendon-vibration-during-wide-pulse-neuromuscular-electrical-stimulation-nmes-on-muscle-force-production-in-people-with-spinal-cord-injury-sci
#7
Vanesa Bochkezanian, Robert U Newton, Gabriel S Trajano, Amilton Vieira, Timothy S Pulverenti, Anthony J Blazevich
BACKGROUND: Neuromuscular electrical stimulation (NMES) is commonly used in skeletal muscles in people with spinal cord injury (SCI) with the aim of increasing muscle recruitment and thus muscle force production. NMES has been conventionally used in clinical practice as functional electrical stimulation (FES), using low levels of evoked force that cannot optimally stimulate muscular strength and mass improvements, and thus trigger musculoskeletal changes in paralysed muscles. The use of high intensity intermittent NMES training using wide-pulse width and moderate-intensity as a strength training tool could be a promising method to increase muscle force production in people with SCI...
February 13, 2018: BMC Neurology
https://www.readbyqxmd.com/read/29430392/surgical-technique-to-bring-down-the-patellar-height-and-to-reconstruct-the-tendon-for-chronic-patellar-tendon-rupture
#8
Kengo Harato, Shu Kobayashi, Kazuhiko Udagawa, Yu Iwama, Ko Masumoto, Hiroyuki Enomoto, Yasuo Niki
Although surgical treatment is the gold standard for chronic patellar tendon rupture, the technique of patellar tendon reconstruction is still difficult. Basically, good clinical results of surgical repair for acute patellar tendon rupture have been reported. However, the results of reconstructive surgery for chronic patellar tendon rupture are still inconsistent. Some surgical options have been previously reported. For example, surgeons need to choose between 1- and 2-stage reconstruction. Furthermore, contralateral bone-tendon-bone graft, ipsilateral semitendinosus tendon graft, Achilles tendon allograft, and an artificial ligament have been used to reconstruct the patellar tendon...
October 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/29426312/anterior-cruciate-ligament-reconstruction-with-quadriceps-tendon-patellar-bone-allograft-matched-case-control-study
#9
Yoon-Ho Kwak, Sahnghoon Lee, Myung Chul Lee, Hyuk-Soo Han
BACKGROUND: Quadriceps tendon-patellar bone (QTPB) autograft is an excellent graft option with good clinical outcome. Use of QTPB autografts have increased because they minimize donor-site morbidity including anterior knee pain, while providing adequate mechanical strength. Although, there were many clinical results about allografts that used in anterior cruciate ligament (ACL) reconstruction, it have never been reported about the clinical outcome of ACL reconstruction with QTPB allograft...
February 9, 2018: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/29424178/-reconstruction-of-medial-patellofemoral-ligament-with-transposition-of-great-adductor-muscular-tendon-for-the-treatment-of-teenagers-recurrent-patellar-dislocation
#10
Chuan-Qiang Shao, Chang-Chun Chen, Chun-Cheng Zhao, Hong-Mei Yang, Yan-Zhong Kang
OBJECTIVE: To investigate surgical method and clinical curative effects of medial patellofemoral ligament (MPFL) reconstruction with great adductor muscular tendon in treating teenagers' recurrent patellar dislocation. METHODS: From May 2012 to September 2014, 19 patients with recurrent dislocation of patellar, including 6 males and 13 females with an average of 16 years old (ranged from 13 to 17 years), the courses of disease ranged from 3 to 18 months(averaged 6 months)...
June 25, 2017: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/29423546/association-between-incision-technique-for-hamstring-tendon-harvest-in-anterior-cruciate-ligament-reconstruction-and-the-risk-of-injury-to-the-infra-patellar-branch-of-the-saphenous-nerve-a-meta-analysis
#11
REVIEW
Alberto Grassi, Francesco Perdisa, Kristian Samuelsson, Eleonor Svantesson, Matteo Romagnoli, Federico Raggi, Teide Gaziano, Massimiliano Mosca, Olufemi Ayeni, Stefano Zaffagnini
PURPOSE: To determine how the incision technique for hamstring tendon (HT) harvest in anterior cruciate ligament (ACL) reconstruction affects the risk of injury to the IPBSN and clinical outcome. METHODS: A systematic literature search of the MEDLINE/Pubmed, Cochrane Central Register of Controlled Trials (CENTRAL) and EBSCOhost electronic databases and clinicaltrials.gov for unpublished studies was performed to identify comparative studies investigating injury to the IPBSN after HT ACL reconstruction by comparing at least two different incision techniques...
February 8, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/29416968/suture-repair-of-full-radial-posterior-lateral-meniscus-tears-using-a-central-midline-portal
#12
Hervé Ouanezar, Mathieu Thaunat, Adnan Saithna, Levi Reina Fernandes, Bertrand Sonnery-Cottet
Full radial posterior lateral meniscus root tears are frequently associated with injuries to the anterior cruciate ligament. Left unrepaired, they result in loss of the meniscus hoop stress function and can lead to overload of the lateral compartment and early degenerative changes. Arthroscopic suture repairs show successful results with long-term follow-up. However, previously described suture repair techniques have often required special instrumentation and can be technically demanding. This Technical Note describes the use of an accessory portal through the patellar tendon as a safe and easy method for repairing full posterior radial tears of the lateral meniscus...
October 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/29411900/in-vivo-comparison-of-medialized-dome-and-anatomic-patellofemoral-geometries-using-subject-specific-computational-modeling
#13
Azhar A Ali, Erin M Mannen, Paul J Rullkoetter, Kevin B Shelburne
Successful outcome following total knee arthroplasty (TKA) with patella resurfacing is partly determined by the restoration of patellofemoral (PF) function and recovery of the quadriceps mechanism. The current study compared two patellar TKA geometries (medialized dome and anatomic) to determine their impact on PF mechanics and quadriceps function. In-vivo, subject-specific patellar mechanics were evaluated using a sequential experimental and modeling approach. First, stereo radiography, marker-based motion capture, and force plate data were collected for TKA patients (10 dome, 10 anatomic) performing a knee extension and lunge...
February 7, 2018: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/29411519/semitendinosus-and-patellar-tendons-shear-modulus-evaluation-by-supersonic-shearwave-imaging-elastography
#14
C R C Fontenelle, P Mannarino, F B D O Ribeiro, M A Milito, A C P Carvalho, L L Menegaldo, L F Oliveira
PURPOSE: Shear modulus (μ) is directly correlated to the tissue stiffness and can predict the tendon ultimate force to failure. With the knee extended 0° (K0), semitendinosus tendon (ST) is tensioned while patellar tendon (PT) is relaxed. At 80o , knee flexion (K80) tendons present an opposite stress pattern; however, the relation between ST and PT μ in both situations was not studied yet. METHOD: We accessed the μ of the ST and PT at 0o and 80o knee flexion by supersonic shear wave imaging (SSI) elastography from 18 healthy males...
February 7, 2018: Clinical Physiology and Functional Imaging
https://www.readbyqxmd.com/read/29409066/extensor-mechanism-injury-in-the-pediatric-population-a-clinical-review
#15
William Cody Sessions, Matthew Herring, Walter H Truong
The extensor mechanism of the knee-consisting of the four muscles of the quadriceps, the quadriceps tendon, the patella, and the patellar ligament-is essential for lower extremity function during both standing and ambulation. The presence of articular cartilage and growing physes in the pediatric knee, coupled with the generation of significant tensile force, creates an opportunity for pathology unique to the pediatric population.Tibial tubercle fractures and patella injuries are quite rare, and even pediatric-trained orthopaedic surgeons may not be exposed to these injuries on a regular basis...
February 6, 2018: Journal of Knee Surgery
https://www.readbyqxmd.com/read/29407520/the-effect-of-whole-body-vibration-on-sagittal-plane-running-mechanics-in-individuals-with-anterior-cruciate-ligament-reconstruction-a-randomized-crossover-trial
#16
Derek N Pamukoff, Melissa M Montgomery, Kevin Choe, Tyler J Moffit, Michael N Vakula
OBJECTIVE: To examine the effect of whole body vibration (WBV) on running biomechanics in individuals with anterior cruciate ligament reconstruction (ACLR). DESIGN: Single-blind randomized crossover trial. SETTING: Research laboratory. PARTICIPANTS: 20 individuals with unilateral ACLR (age=22.3 (3.3) years; mass=71.8 (15.3) kg; time since ACLR=44.9 (22.8) months; 15 females, 10 patellar tendon autograft, 7 hamstrings autograft, 3 allograft; International Knee Documentation Committee Score=83...
January 30, 2018: Archives of Physical Medicine and Rehabilitation
https://www.readbyqxmd.com/read/29404655/concomitant-injuries-may-not-reduce-the-likelihood-of-achieving-symmetrical-muscle-function-one%C3%A2-year-after-anterior-cruciate-ligament-reconstruction-a-prospective-observational-study-based-on-263-patients
#17
Eric Hamrin Senorski, Eleonor Svantesson, Susanne Beischer, Christoffer Thomeé, Alberto Grassi, Ferid Krupic, Roland Thomeé, Jón Karlsson, Kristian Samuelsson
PURPOSE: A better understanding of patient characteristics and the way common concomitant injuries affect the recovery of muscle function after surgery should help providers to treat patients with anterior cruciate ligament (ACL) injuries. The aim of this study was to determine whether patient characteristics, concomitant injuries and graft choice at ACL reconstruction were associated with symmetrical knee muscle function at one year. The hypothesis was that the presence of concomitant injuries would negatively influence the opportunity to achieve symmetrical knee function at the one-year follow-up...
February 5, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/29401403/patellar-tendon-repair-augmentation-with-a-knotless-suture-anchor-internal-brace-a-biomechanical-cadaveric-study
#18
Alex Rothfeld, Amanda Pawlak, Stephenie A H Liebler, Michael Morris, James M Paci
BACKGROUND: Patellar tendon repair with braided polyethylene suture alone is subject to knot slippage and failure. Several techniques to augment the primary repair have been described. Purpose/Hypothesis: The purpose was to evaluate a novel patellar tendon repair technique augmented with a knotless suture anchor internal brace with suture tape (SAIB). The hypothesis was that this technique would be biomechanically superior to a nonaugmented repair and equivalent to a standard augmentation with an 18-gauge steel wire...
February 1, 2018: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29395632/predictors-of-clinical-success-in-runners-with-patellofemoral-pain-secondary-analyses-of-a-randomized-clinical-trial
#19
Jean-Francois Esculier, Laurent J Bouyer, Blaise Dubois, Jean Leblond, Mélanie Brisson, Luc Chau, Jean-Sébastien Roy
OBJECTIVES: To identify predictors of outcome to a rehabilitation program focused on education and management of training loads in runners with patellofemoral pain (PFP). DESIGN: Secondary analyses of a randomized clinical trial. METHODS: Fifty-eight runners with PFP (62% female, aged 31.2±6.6years, running 20.3±5.6km/week) were included in analyses. Following baseline collection of demographics, anthropometry, symptomatology, isometric strength, running mechanics and radiological data, runners were randomized to one of the three 8-week intervention program: (1) Education on symptoms management and training modifications; (2) Education+Exercise program; (3) Education+Gait retraining...
January 27, 2018: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/29387641/mri-evaluation-to-predict-tendon-size-for-knee-ligament-reconstruction
#20
Lawrence Camarda, Emanuele Grassedonio, Domenico Albano, Massimo Galia, Massimo Midiri, Michele D'Arienzo
Background: The aim of this study is to evaluate a possible correlation between specific anthropometric parameters and sizes of knee tendons commonly used for ACL reconstruction. We hypothesized that specific clinical and radiological knee measurements could be better tendon sizes predictors than age, gender, height and weight. Materials and methods: 100 consecutive patients were enrolled and 77 patients met the inclusion criteria of the study. All patients underwent a MRI of the knee with a 1...
July 2017: Muscles, Ligaments and Tendons Journal
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