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https://www.readbyqxmd.com/read/29156445/autologous-tenocyte-implantation-into-shoulder-tendon-pathology-in-an-elite-swimmer
#1
Laura M Schwab, Peter Blanch, Mark Young
INTRODUCTION: The use of novel bioengineer treatment techniques such as Autologous Tenocyte Implantation (ATI) have shown promising improvements in both pain ratings and functional outcomes in elbow, gluteal and shoulder tendon pathology. This case will review the injury timeline of ATI intervention in an elite male swimmer with subscapularis tendon pathology and investigate whether ATI has a concomitant healing effect associated with improved functional outcomes. METHODS: A palmaris longus tendon biopsy was performed and cells were expanded by in-vitro culture...
October 13, 2017: Physical Therapy in Sport
https://www.readbyqxmd.com/read/29155964/effects-of-replacing-soybean-meal-with-chickpea-seeds-in-the-diet-on-mechanical-and-thermal-properties-of-tendon-tissue-in-broiler-chicken
#2
S Muszynski, M Kwiecien, M Swietlicki, P Dobrowolski, J Tatarczak, B Gladyszewska
The efficiency of the musculoskeletal system of broiler chickens, in particular during locomotion and in ensuring its supportive function, depends directly on the adequate function and mechanical endurance of soft tissues, including tendons. However, little is known whether the properties of musculoskeletal soft tissues can be influenced by changes of dietary protein. We substituted soybean meal with raw chickpea seeds as the primary protein source in the diet and studied the effects it had on the mechanical and thermal properties of drumstick tendons in broiler Ross 308 chickens...
November 15, 2017: Poultry Science
https://www.readbyqxmd.com/read/29154089/triple-achilles-tendon-rupture-case-report
#3
Amol Saxena, Deann Hofer
We present a case report with 1-year follow-up data of a 57-year-old male soccer referee who had sustained an acute triple Achilles tendon rupture injury during a game. His triple Achilles tendon rupture consisted of a rupture of the proximal watershed region, a rupture of the main body (mid-watershed area), and an avulsion-type rupture of insertional calcific tendinosis. The patient was treated surgically with primary repair of the tendon, including tenodesis with anchors. Postoperative treatment included non-weightbearing for 4 weeks and protected weightbearing until 10 weeks postoperative, followed by formal physical therapy, which incorporated an "antigravity" treadmill...
November 16, 2017: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/29153993/the-high-frequency-of-superior-labrum-biceps-tendon-and-superior-rotator-cuff-pathologies-in-patients-with-subscapularis-tears-a-cohort-study
#4
Muhammet Baybars Ataoglu, Mehmet Cetinkaya, Mustafa Ozer, Tacettin Ayanoglu, Ulunay Kanatli
BACKGROUND: The purpose of this study was to assess the frequency of superior labrum anterior posterior (SLAP) lesions, long head of biceps tendon (LHBT) pathologies, and superior rotator cuff tears accompanying subscapularis tears. We hypothesised that LHBT lesions, superior rotator cuff tears, and especially SLAP lesions were very frequent with subscapularis tears. METHODS: The digital files of patients who underwent shoulder arthroscopy were reviewed retrospectively...
November 16, 2017: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/29153963/shear-wave-elastography-swe-for-monitoring-of-treatment-of-tendinopathies-a-double-blinded-longitudinal-clinical-study
#5
Timm Dirrichs, Valentin Quack, Matthias Gatz, Markus Tingart, Björn Rath, Marcel Betsch, Christiane K Kuhl, Simone Schrading
RATIONALE AND OBJECTIVES: We aimed to investigate the diagnostic accuracy with which shear wave elastography (SWE) can be used to monitor response to treatment of tendinopathies, and to compare it to conventional ultrasound (US)-imaging methods (B-mode US (B-US) and power Doppler US (PD-US)). MATERIALS AND METHODS: A prospective Institutional Review Board-approved longitudinal study on 35 patients with 47 symptomatic tendons (17 Achilles-, 15 patellar-, and 15 humeral-epicondylar) who underwent standardized multimodal US and standardized clinical assessment before and after 6 months of treatment (tailored stretching exercise, sport break, and local Polidocanol) was carried out...
November 16, 2017: Academic Radiology
https://www.readbyqxmd.com/read/29153451/a-novel-minimally-invasive-surgery-combined-with-early-exercise-therapy-promoting-tendon-regeneration-in-the-treatment-of-spontaneous-achilles-tendon-rupture
#6
Amuding Aisaiding, Jianping Wang, Rouziwanguli Maimaiti, Ayidaer Jialihasia, Rakimbaiev Aibek, Bayixiati Qianman, Nuerai Shawutali, Aynaz Badelhan, Wulan Bahetiya, Aliya Kubai, Mailamuguli Kelamu, Yeermike Nuerdoula, Elihaer Makemutibieke, Yerzat Bakyt, Jianati Wuerliebieke, Jiasharete Jielile
OBJECTIVE: Acute closed spontaneous Achilles tendon rupture often occurs in elderly individuals and is usually accompanied with many complications. Conventional surgical approaches to remove the tendon lesions and enthesophytes are highly traumatic and cause complications. In this study, a previously established minimally invasive surgical approach was modified and combined with a Kazakh exercise therapy to reduce trauma, improve wound healing, and promote tendon regeneration in the management of acute closed spontaneous Achilles tendon rupture...
October 31, 2017: Injury
https://www.readbyqxmd.com/read/29152595/identification-of-equid-herpesvirus-2-in-tissue-engineered-equine-tendon
#7
Roisin Wardle, Jane A Pullman, Sam Haldenby, Lorenzo Ressel, Marion Pope, Peter D Clegg, Alan Radford, James P Stewart, Mohammed Al-Saadi, Philip Dyer, Mandy J Peffers
Background: Incidental findings of virus-like particles were identified following electron microscopy of tissue-engineered tendon constructs (TETC) derived from equine tenocytes. We set out to determine the nature of these particles, as there are few studies which identify virus in tendons per se, and their presence could have implications for tissue-engineering using allogenic grafts. Methods: Virus particles were identified in electron microscopy of TETCs. Virion morphology was used to initially hypothesise the virus identity...
2017: Wellcome Open Research
https://www.readbyqxmd.com/read/29152539/early-mobilizing-and-dangling-of-the-lower-leg-after-one-stage-reconstruction-of-achilles-tendon-and-overlying-tissue-defect-using-an-anterolateral-thigh-flap-with-vascularized-fascia-lata
#8
Masayuki Okochi, Masanori Momiyama, Hiromi Okochi, Kazuki Ueda
We have treated two patients who had an Achilles tendon and overlying tissue defect using an anterolateral thigh flap with fascia lata. Postoperatively, skeletal suspension of the affected leg and intra-arterial heparin infusion were performed for seven days. Six weeks postoperatively, the patients could walk again.
2017: Case Reports in Plastic Surgery & Hand Surgery
https://www.readbyqxmd.com/read/29152522/bone-patellar-tendon-bone-versus-hamstring-tendon-autografts-for-primary-anterior-cruciate-ligament-reconstruction-a-systematic-review-of-overlapping-meta-analyses
#9
REVIEW
Hayden B Schuette, Matthew J Kraeutler, Darby A Houck, Eric C McCarty
Background: Previous meta-analyses have compared bone-patellar tendon-bone (BPTB) with hamstring tendon (HT) autografts for primary anterior cruciate ligament reconstruction (ACLR). Purpose: To conduct a systematic review of overlapping meta-analyses comparing BPTB with HT autografts for ACLR to determine which meta-analyses provide the best available evidence. Study Design: Systematic review; Level of evidence, 4. Methods: A systematic review was performed by searching the PubMed and Cochrane Library databases...
November 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/29152002/cadaveric-anatomical-study-of-sural-nerve-where-is-the-safe-area-for-endoscopic-gastrocnemius-recession
#10
REVIEW
Alvin Chin Kwong Tan, Zhi Hao Tang, Muhammad Farhan Bin Mohd Fadil
Purpose: To ascertain in cadavers where the sural nerve crosses the gastro-soleus complex and where the gastrocnemius tendon merges with the Achilles tendon in relation to the calcaneal tuberosities. Methods: Twelve cadaveric lower limbs (6 right and 6 left) were dissected. The distances between the calcaneal tuberosities and the lateral border of the Achilles tendon where the sural nerve crosses from medial to lateral, as well as to the gastrocnemius tendon insertion into the Achilles tendon, were measured...
2017: Open Orthopaedics Journal
https://www.readbyqxmd.com/read/29150470/platelet-rich-plasma-in-achilles-tendon-healing-2-path-2-trial-protocol-for-a-multicentre-participant-and-assessor-blinded-parallel-group-randomised-clinical-trial-comparing-platelet-rich-plasma-prp-injection-versus-placebo-injection-for-achilles-tendon-rupture
#11
Joseph Alsousou, David J Keene, Philippa A Hulley, Paul Harrison, Susan Wagland, Christopher Byrne, Michael Maia Schlüssel, Susan J Dutton, Sarah E Lamb, Keith Willett
BACKGROUND: Achilles tendon injuries give rise to substantial long-lasting morbidity and pose considerable challenges for clinicians and patients during the lengthy healing period. Current treatment strategies struggle to curb the burden of this injury on health systems and society due to lengthy rehabilitation, work absence and reinjury risk. Platelet-rich plasma (PRP) is an autologous preparation that has been shown to improve the mechanobiological properties of tendons in laboratory and animal studies...
November 16, 2017: BMJ Open
https://www.readbyqxmd.com/read/29150297/prolonged-stretching-of-the-ankle-plantarflexors-elicits-muscle-tendon-adaptations-relevant-to-ankle-gait-kinetics-in-children-with-spastic-cerebral-palsy
#12
Teresa Martín Lorenzo, Eduardo Rocon, Ignacio Martínez Caballero, Ana Ramírez Barragán, Sergio Lerma Lara
Tissue related ankle hyper-resistance has been reported to contribute to equinus gait in children with spastic cerebral palsy. Hence, ankle plantarflexor stretching programs have been developed in order to restore passive ankle dorsiflexion. Despite high quality evidence on the limited effects of stretching on passive joint mobility, further muscle-tendon adaptations have been reported which may impact gait performance. As such, children with spastic cerebral palsy subject to long-term manual static stretching achieved dorsiflexion gains through the reduction of muscle and fascicle strain whilst preserving tendon strain, and prolonged use of ankle-foot orthoses achieved similar dorsiflexion gains through increased tendon strain whilst preserving muscle and fascicle strain...
November 2017: Medical Hypotheses
https://www.readbyqxmd.com/read/29149666/relationship-between-radiographic-patella-alta-pathology-and-walking-dysfunction-in-children-with-bilateral-spastic-cerebral-palsy
#13
Matthias Hösl, Harald Böhm, Michaela Seltmann, Chakravarthy Ugandhar Dussa, Leonhard Döderlein
BACKGROUND: Patella-alta is very common in patients with Cerebral Palsy (CP). While several diagnostic x-ray indices have been developed for patella-alta in general, the specific relationship with walking dysfunction in CP is only partly understood. METHODS: 33 participants with bilateral spastic CP between 4 and 20 years (GMFCS I-II without previous surgery) that underwent 3D gait analysis as well as a radiographic exam within 0.8 (SD 1.2) months were retrospectively included...
November 10, 2017: Gait & Posture
https://www.readbyqxmd.com/read/29149506/integrating-soft-and-hard-tissues-via-interface-tissue-engineering
#14
REVIEW
Sahishnu Patel, Jon-Michael Caldwell, Stephen B Doty, William N Levine, Scott Rodeo, Louis J Soslowsky, Stavros Thomopoulos, Helen H Lu
The enthesis, or interface between bone and soft tissues such as ligament and tendon, is prone to injury and often does not heal post-surgical intervention. Interface tissue engineering represents an integrative strategy for regenerating the native enthesis by functionally connecting soft and hard tissues and thereby improving clinical outcome. This review focuses on integrative and cell-instructive scaffold designs that target the healing of the two most commonly injured soft tissue-bone junctions: the tendon-bone interface (e...
November 17, 2017: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/29148083/macroscopic-and-microscopic-analyses-in-flexor-tendons-of-the-tarsometatarso-phalangeal-joint-of-ostrich-struthio-camelus-foot-with-energy-storage-and-shock-absorption
#15
Rui Zhang, Dianlei Han, Gang Luo, Lei Ling, Guoyu Li, Qiaoli Ji, Jianqiao Li
Flexor tendons function as energy storage and shock absorption structures in the tarsometatarso-phalangeal joint (TMTPJ) of ostrich feet during high-speed and heavy-load locomotion. In this study, mechanisms underlying the energy storage and shock absorption of three flexor tendons of the third toe were studied using histology and scanning electron microscopy (SEM). Macroscopic and microscopic structures of the flexor tendons in different positions of TMTPJ were analyzed. Histological slices showed collagen fiber bundles of all flexor tendons in the middle TMTPJ were arranged in a linear-type, but in the proximal and distal TMTPJ, a wavy-type arrangement was found in the tendon of the M...
November 17, 2017: Journal of Morphology
https://www.readbyqxmd.com/read/29147849/heterogeneity-of-passive-elastic-properties-within-the-quadriceps-femoris-muscle-tendon-unit
#16
Brooke K Coombes, Brandon Ziegenfuss, Michael David, Rohitha Badya, Wolbert van den Hoorn, François Hug, Kylie Tucker
PURPOSE: The purpose of this study was to compare regional elastic properties between anterior and posterior regions of the patellar tendon, and individual quadriceps muscles, over a range of knee flexion angles. METHODS: An isokinetic dynamometer passively positioned the non-dominant knee of 19 young, healthy participants, at 25°, 40°, 55°, 70° and 85° flexion. Shear wave velocity (SWV, an index of tissue elasticity) was measured using ultrasound shear wave elastography in a relaxed (passive) state, confirmed by electromyography...
November 17, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/29147741/achilles-tendon-elastic-properties-remain-decreased-in-long-term-after-rupture
#17
B Frankewycz, A Penz, J Weber, N P da Silva, F Freimoser, R Bell, M Nerlich, E M Jung, D Docheva, C G Pfeifer
PURPOSE: Rupture of the Achilles tendon results in inferior scar tissue formation. Elastography allows a feasible in vivo investigation of biomechanical properties of the Achilles tendon. The purpose of this study is to investigate the biomechanical properties of healed Achilles tendons in the long term. MATERIALS AND METHODS: Patients who suffered from Achilles tendon rupture were recruited for an elastographic evaluation. Unilateral Achilles tendon ruptures were included and scanned in the mid-substance and calcaneal insertion at least 2 years after rupture using shear wave elastography...
November 16, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/29147681/crimped-nanofibrous-biomaterials-mimic-microstructure-and-mechanics-of-native-tissue-and-alter-strain-transfer-to-cells
#18
Spencer E Szczesny, Tristan P Driscoll, Hsiao-Yun Tseng, Pang-Ching Liu, Su-Jin Heo, Robert L Mauck, Pen-Hsiu G Chao
To fully recapitulate tissue microstructure and mechanics, fiber crimping must exist within biomaterials used for tendon/ligament engineering. Existing crimped nanofibrous scaffolds produced via electrospinning are dense materials that prevent cellular infiltration into the scaffold interior. In this study, we used a sacrificial fiber population to increase the scaffold porosity and evaluated the effect on fiber crimping. We found that increasing scaffold porosity increased fiber crimping and ensured that the fibers properly uncrimped as the scaffolds were stretched by minimizing fiber-fiber interactions...
November 13, 2017: ACS Biomaterials Science & Engineering
https://www.readbyqxmd.com/read/29147668/do-magnetic-resonance-imaging-characteristics-of-full-thickness-rotator-cuff-tears-correlate-with-sleep-disturbance
#19
Bryan A Reyes, Brandon R Hull, Alexander B Kurth, Nathan R Kukowski, Edward P Mulligan, Michael S Khazzam
Background: Many patients with rotator cuff tears suffer from nocturnal shoulder pain, resulting in sleep disturbance. Purpose: To determine whether rotator cuff tear size correlated with sleep disturbance in patients with full-thickness rotator cuff tears. Study Design: Cross-sectional study; Level of evidence, 3. Methods: Patients with a diagnosis of unilateral full-thickness rotator cuff tears (diagnosed via magnetic resonance imaging [MRI]) completed the Pittsburgh Sleep Quality Index (PSQI), a visual analog scale (VAS) quantifying their shoulder pain, and the American Shoulder and Elbow Surgeons (ASES) questionnaire...
November 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/29146686/specific-force-of-the-vastus-lateralis-in-adults-with-achondroplasia
#20
David Thomas Sims, Gladys L Onambele-Pearson, Adrian Burden, Carl Payton, Christopher I Morse
Achondroplasia is a clinical condition defined by shorter stature and disproportionate limb length. Force production in able-bodied individuals (controls) is proportional to muscle size, but given the disproportionate nature of Achondroplasia, normalising to anatomical cross sectional area (ACSA) is inappropriate. The aim of this study was to assess specific force of the vastus lateralis (VL) in 10 adults with Achondroplasia (22 ±3 yrs) and 18 gender matched controls (22 ±2 yrs). Isometric torque (iMVCτ) of the dominant knee extensors (KE) and in vivo measures of VL muscle architecture, volume, activation and patella tendon moment arm were used to calculate VL physiological CSA (PCSA), fascicle force and specific force in both groups...
November 16, 2017: Journal of Applied Physiology
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