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Tendon transfers

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https://www.readbyqxmd.com/read/28403000/the-combined-use-of-a-neurocutaneous-flap-and-the-ilizarov-technique-for-reconstruction-of-large-soft-tissue-defects-and-bone-loss-in-the-tibia
#1
Jia Xu, Wan-Run Zhong, Liang Cheng, Chun-Yang Wang, Gen Wen, Pei Han, Yi-Min Chai
BACKGROUND: Management of posttraumatic large soft tissue defects and bone loss remains a therapeutic and surgical challenge for orthopedic surgeons. We assessed the use of a neurocutaneous flap and the Ilizarov technique in the reconstruction of severe composite defects in the tibia. METHODS: We retrospectively reviewed 18 consecutive patients with trauma-related soft tissue defects and bone loss. The size of the soft tissue defect ranges from 8 × 9 cm to 14 × 18 cm...
May 2017: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/28400877/latissimus-dorsi-transfer-in-posterior-irreparable-rotator-cuff-tears
#2
REVIEW
Panagiotis P Anastasopoulos, George Alexiadis, Sarantis Spyridonos, Emmanouil Fandridis
BACKGROUND: Massive rotator cuff tears pose a difficult and complex challenge even for the experienced surgeon; inability to repair these tears by conventional means designates them as irreparable, while management becomes quite taxing. Several operative options have been suggested for the management of such lesions with varying degrees of success, while it is imperative to match patient demands and expectations to the predicted outcome. METHODS: Research articles are examined and key concepts are discussed, in order to provide an evidence based review of the available literature...
2017: Open Orthopaedics Journal
https://www.readbyqxmd.com/read/28399642/acute-tears-of-the-tibialis-posterior-tendon-following-ankle-sprain
#3
Lyle T Jackson, Linda J Dunaway, Gregory A Lundeen
BACKGROUND: Traumatic tears of the tibialis posterior (TP) tendon following an ankle sprain are rare. The purpose of this study was to report our case series of TP tendon tears following an ankle sprain. METHODS: Patients with persistent TP tendon pain after an ankle sprain were retrospectively identified over a 4-year period and reviewed. A comparison of magnetic resonance imaging (MRI) interpretations by a radiologist and surgeon was made. Patients failing conservative management underwent operative repair of the TP tendon tear and concomitant pathology...
April 1, 2017: Foot & Ankle International
https://www.readbyqxmd.com/read/28394713/elbow-mri-findings-do-not-correlate-with-future-placement-on-the-disabled-list-in-asymptomatic-professional-baseball-pitchers
#4
Nicholas M Gutierrez, Christopher Granville, Lee Kaplan, Michael Baraga, Jean Jose
BACKGROUND: Injury rates among professional baseball players may reach as high as 5.8 per 1000 encounters, with pitchers being most vulnerable on account of the excessive biomechanical load on the upper extremity during the throwing motion. Anatomically, the shoulder is the most common site of pitching-related injury, accounting for 30.7% of injuries, closely followed by the elbow at 26.3%. Characteristic valgus loading imparts a predictable constellation of stresses on the joint, including medial tension, lateral compression, and posterior medial shearing...
April 1, 2017: Sports Health
https://www.readbyqxmd.com/read/28394684/treatment-algorithm-for-chronic-achilles-tendon-lesionsreview-of-the-literature-and-proposal-of-a-new-classification
#5
Roberto Buda, Francesco Castagnini, Gherardo Pagliazzi, Sandro Giannini
Chronic Achilles tendon lesions (CATLs) ensue from a neglected acute rupture or a degenerated tendon. Surgical treatment is usually required. The current English literature (PubMed) about CATLs was revised, and particular emphasis was given to articles depicting CATL classification. The available treatment algorithms are based on defect size. We propose the inclusion of other parameters, such as tendon degeneration, etiology, and time from injury to surgery. Partial lesions affecting less than (I stage) or more than (II stage) half of the tendon should be treated conservatively for healthy tendons, within 12 weeks of injury...
March 2017: Journal of the American Podiatric Medical Association
https://www.readbyqxmd.com/read/28382732/engineering-vascularized-flaps-using-adipose-derived-microvascular-ec-and-msc
#6
Alina Freiman, Yulia Shandalov, Dekel Rosenfeld, Erez Shor, Dror Ben-David, Shai Meretzki, Shulamit Levenberg, Dana Egozi
Human adipose-derived microvascular endothelial cells (HAMEC) and mesenchymal stem cells (MSC) have been shown to bear angiogenic and vasculogenic capabilities. We hypothesize that co-culturing HAMEC:MSC on a porous biodegradable scaffold in vitro, later implanted as a graft around femoral blood vessels in a rat, will result in its vascularization by host vessels, creating a functional vascular flap that can effectively treat a range of large full-thickness soft tissue defects. HAMEC were co-cultured with MSC on polymeric 3D porous constructs...
April 6, 2017: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/28373953/arthroscopic-partial-repair-of-irreparable-massive-rotator-cuff-tears
#7
Roberto Castricini, Olimpio Galasso, Daria Anna Riccelli, Filippo Familiari, Massimo De Benedetto, Nicola Orlando, Giorgio Gasparini
Several treatment options for chronic, massive rotator cuff tears exist, and they include debridement with possible biceps tenotomy or tenodesis, open or arthroscopic partial repair, muscle or tendon transfer, superior capsule reconstruction, synthetic patch augmentation, and reverse total shoulder arthroplasty. The aim of this technique article is to describe our preferred surgical option for irreparable, massive rotator cuff tears with an irreparable supraspinatus, a reparable infraspinatus, and an intact or reparable subscapularis tendon...
February 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/28363300/microsurgical-reconstruction-of-the-burned-hand-and-upper-extremity
#8
REVIEW
Mauricio De la Garza, Michael Sauerbier, Germann Günter, Curtis L Cetrulo, Reuben A Bueno, Robert C Russell, Michael W Neumeister
Improvements in critical care and burn victim resuscitation have led to increased survival of burned patients. Initial resuscitation, early excision of burned tissues, prevention of burn wound sepsis, and wound coverage remain mainstays of care. Many burn wounds require complex reconstruction. This is particularly important in the hand. Coverage of tendons, ligaments, joints, vessels, nerves, and bones of the hand requires healthy vascularized tissue to maintain viability and function. Local flaps or regional flaps may be within the burn zone of injury...
May 2017: Hand Clinics
https://www.readbyqxmd.com/read/28363292/a-3-phase-approach-for-the-management-of-upper-extremity-electrical-injuries
#9
REVIEW
Ketan Sharma, Miles Bichanich, Amy M Moore
Upper extremity electrical injuries present with unique pathophysiologic considerations due to the differing mechanisms of injury produced by the electromagnetic field. The initial phase of treatment consists of recognition of other life-threatening injuries, stabilization of patients, and multisystem resuscitation. The second phase of treatment consists of excising devitalized tissue, appropriate wound care to prevent delayed infection, providing temporary and definitive coverage over vital structures, and preventing contracture and joint stiffness via aggressive therapy...
May 2017: Hand Clinics
https://www.readbyqxmd.com/read/28356148/prediction-of-complications-in-early-onset-pre-eclampsia-prep-development-and-external-multinational-validation-of-prognostic-models
#10
Shakila Thangaratinam, John Allotey, Nadine Marlin, Julie Dodds, Fiona Cheong-See, Peter von Dadelszen, Wessel Ganzevoort, Joost Akkermans, Sally Kerry, Ben W Mol, Karl G M Moons, Richard D Riley, Khalid S Khan
BACKGROUND: Unexpected clinical deterioration before 34 weeks gestation is an undesired course in early-onset pre-eclampsia. To safely prolong preterm gestation, accurate and timely prediction of complications is required. METHOD: Women with confirmed early onset pre-eclampsia were recruited from 53 maternity units in the UK to a large prospective cohort study (PREP-946) for development of prognostic models for the overall risk of experiencing a complication using logistic regression (PREP-L), and for predicting the time to adverse maternal outcome using a survival model (PREP-S)...
March 30, 2017: BMC Medicine
https://www.readbyqxmd.com/read/28350557/double-versus-single-tendon-transfers-to-improve-shoulder-function-in-brachial-plexus-birth-palsy
#11
Dustin A Greenhill, William R Smith, F V Ramsey, Scott H Kozin, Dan A Zlotolow
BACKGROUND: In children with brachial plexus birth palsy (BPBP) undergoing tendon transfers to augment shoulder external rotation, it is unclear whether transfer of the latissimus dorsi with its combined latissimus dorsi and teres major (cLT) versus isolated teres major (iTM) tendon transfer yield different outcomes. METHODS: Records of patients with BPBP who underwent shoulder tendon transfers to augment external rotation were retrospectively reviewed. Transfer type (cLT or iTM) was considered indiscriminate by virtue of surgeon preference...
March 27, 2017: Journal of Pediatric Orthopedics
https://www.readbyqxmd.com/read/28349064/reliability-of-baropodometry-on-the-evaluation-of-plantar-load-distribution-a-transversal-study
#12
Daniel Baumfeld, Tiago Baumfeld, Romário Lopes da Rocha, Benjamim Macedo, Fernando Raduan, Roberto Zambelli, Thiago Alexandre Alves Silva, Caio Nery
Introduction. Baropodometry is used to measure the load distribution on feet during rest and walking. The aim of this study was to evaluate changes in plantar foot pressures distribution due to period of working and due to stretching exercises of the posterior muscular chain. Methods. In this transversal study, all participants were submitted to baropodometric evaluation at two different times: before and after the working period and before and after stretching the muscles of the posterior chain. Results. We analyzed a total of 54 feet of 27 participants...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28341266/influence-of-fixation-point-of-latissimus-dorsi-tendon-transfer-for-irreparable-rotator-cuff-tear-on-glenohumeral-external-rotation-a-cadaver-study
#13
K Bargoin, M Boissard, J Kany, J Grimberg
Latissimus dorsi tendon transfer is a surgical option for treating irreparable posterosuperior rotator cuff tears, notably when attempting to reconstruct active external rotation. We hypothesized that the positioning of the transfer's point of fixation would differ depending on the desired elbow-to-body external rotation or external rotation with the elbow abducted. MATERIAL AND METHODS: Seven shoulders from four whole frozen cadavers were used. We created two systems to install the subject in a semi-seated position to allow external rotation elbow to body and the arm abducted 90°...
December 2016: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/28340663/compound-or-specially-designed-flaps-in-the-lower-extremities
#14
REVIEW
Bruno Battiston, Davide Ciclamini, Jin Bo Tang
Novel and combined tissue transfers from the lower extremity provide new tools to combat soft tissue defects of the hand, foot, and ankle, or fracture nonunion. Flaps can be designed for special purposes, such as providing a gliding bed for a grafted or repaired tendon or for thumb or finger reconstruction. Propeller flaps can cover soft tissue defects of the leg and foot. In repairing severe bone and soft tissue defects of the lower extremity, combined approaches, including external fixators, one-stage vascularized bone grafting, and skin or muscle flap coverage of the traumatized leg and foot, have become popular...
April 2017: Clinics in Plastic Surgery
https://www.readbyqxmd.com/read/28332593/injections-through-skin-colonized-with-staphylococcus-aureus-biofilm-introduce-contamination-despite-standard-antimicrobial-preparation-procedures
#15
Yi Wang, Valery Leng, Viraj Patel, K Scott Phillips
While surgical site preparation has been extensively studied, there is little information about resistance of skin microbiota in the biofilm form to antimicrobial decontamination, and there are no quantitative models to study how biofilm might be transferred into sterile tissue/implant materials during injections for joint spine and tendon, aspiration biopsies and dermal fillers (DF). In this work, we develop two in vitro models to simulate the process of skin preparation and DF injection using pig skin and SimSkin (silicone) materials, respectively...
March 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28330431/fabrication-and-characterization-of-biphasic-silk-fibroin-scaffolds-for-tendon-ligament-to-bone-tissue-engineering
#16
Sònia Font Tellado, Walter Bonani, Elizabeth R Balmayor, Peter Foehr, Antonella Motta, Claudio Migliaresi, Martijn van Griensven
Tissue engineering is an attractive strategy for tendon/ligament-to-bone interface repair. The structure and extracellular matrix composition of the interface are complex and allow for a gradual mechanical stress transfer between tendons/ligaments and bone. Thus, scaffolds mimicking the structural features of the native interface may be able to better support functional tissue regeneration. In this study, we fabricated biphasic silk fibroin scaffolds designed to mimic the gradient in collagen molecule alignment present at the interface...
April 21, 2017: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/28301328/evaluate-muscle-tension-using-intramuscular-pressure-device-in-rabbit-tibialis-anterior-model-for-improved-tendon-transfer-surgery
#17
Loribeth Evertz, Liselotte Bulstra, Alexander Shin, Kenton R Kaufman
Quantitative evaluation of passive tension in a muscle is important in tendon transfer surgeries, however, currently appropriate intraoperative measurement techniques are lacking. Intramuscular pressure (IMP) is explored as an application to access force. The tibialis anterior (TA) in New Zealand white rabbits (n=9) was used to test the hypothesis of a strong correlation between the IMP, muscle force, and length. This study also helped to develop intraoperative techniques for future human studies evaluating various insertion techniques (parallel vs...
March 16, 2017: Physiological Measurement
https://www.readbyqxmd.com/read/28300745/congenital-dystrophic-medial-rectus-muscles
#18
Ramesh Murthy
We report two patients, one with congenital dystrophic medial rectus muscles and one with absence of the medial rectus muscles; in addition, one of them had absence of the lateral rectus muscles. While absence of the superior oblique and superior rectus has been more commonly reported in literature, especially with craniofacial syndromes, our patients were nonsyndromic. Considering the risk of anterior segment ischemia, correction of the large-angle exotropia was performed by horizontal rectus muscle surgery where possible, along with transfer of the superior oblique tendon to the superior part of the normal medial rectus muscle insertion area to create a tethering effect with a good outcome...
January 2017: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/28291442/attritional-rupture-of-the-extensor-pollicis-longus-tendon-due-to-calcified-extensor-carpi-radialis-tendon-group-a-case-report
#19
Kadir Ertem, Zeynep Maraş Özdemir, Gökay Görmeli, Muhammed Köroğlu
In this article, we report a case with spontaneous rupture of extensor pollicis longus tendon due to calcified extensor carpi radialis tendon group, which has not been published in the literature previously. Successful thumb extension was achieved in a 68-year-old male patient with the transfer of the extensor indicis proprius tendon at two months postoperatively. It appears that calcified extensor carpi radialis tendon group constitutes high risk for a possible attritional rupture of the extensor pollicis longus tendon...
April 2017: Eklem Hastalıkları Ve Cerrahisi, Joint Diseases & related Surgery
https://www.readbyqxmd.com/read/28289627/tendon-transfer-in-congenital-deficiency-of-flexor-pollicis-longus
#20
Masoud Yavari, Ramin Farzam, Azade Riyahi
No abstract text is available yet for this article.
January 2017: World Journal of Plastic Surgery
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