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Deltoid ligament

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https://www.readbyqxmd.com/read/28473957/syndesmotic-internalbrace-tm-for-anatomic-distal-tibiofibular-ligament-augmentation
#1
Markus Regauer, Gordon Mackay, Mirjam Lange, Christian Kammerlander, Wolfgang Böcker
Reconstruction of unstable syndesmotic injuries is not trivial, and there is no generally accepted treatment guidelines. Thus, there still remain considerable controversies regarding diagnosis, classification and treatment of syndesmotic injuries. Syndesmotic malreduction is the most common indication for early re-operation after ankle fracture surgery, and widening of the ankle mortise by only 1 mm decreases the contact area of the tibiotalar joint by 42%. Outcome of ankle fractures with syndesmosis injury is worse than without, even after surgical syndesmotic stabilization...
April 18, 2017: World Journal of Orthopedics
https://www.readbyqxmd.com/read/28457169/arthroscopic-correlates-of-subtle-syndesmotic-injury
#2
Gregory P Guyton, Kenneth DeFontes, Cameron R Barr, Brent G Parks, Lyn M Camire
BACKGROUND: Arthroscopic criteria for identifying syndesmotic disruption have been variable and subjective. We aimed to quantify syndesmotic disruption arthroscopically using a standardized measurement device. METHODS: Ten cadaveric lower extremity specimens were tested in intact state and after serial sectioning of the syndesmotic structures (anterior inferior tibiofibular ligament [AiTFL], interosseous ligament [IOL], posterior inferior tibiofibular ligament [PiTFL], deltoid)...
May 2017: Foot & Ankle International
https://www.readbyqxmd.com/read/28447855/the-arterial-anatomy-of-the-deltoid-ligament-a-cadaveric-study
#3
Jacob A Haynes, Michelle Gosselin, Brian Cusworth, Jeremy McCormick, Jeffery Johnson, Sandra Klein
BACKGROUND: There is an increasing interest in the operative treatment of deltoid ligament disruption in the setting of chronic ankle instability. Understanding the vascular anatomy of the deltoid complex is beneficial when considering operative procedures on the medial ankle and may provide insight into factors that lead to chronic deltoid insufficiency and ankle instability. METHODS: Thirty-two pairs of cadaveric specimens (64 total legs) were amputated below the knee, and the tibialis anterior, tibialis posterior, and peroneal arteries were injected with India ink and Ward's blue latex...
April 1, 2017: Foot & Ankle International
https://www.readbyqxmd.com/read/28435576/a-new-technique-for-solving-tightrope-cutout-during-acromioclavicular-joint-fixation-a-case-report
#4
B W Ng, A F Abdullah, S Nadarajah
Acromioclavicular joint (ACJ) dissociation is one of the common injuries affecting adults. The stability of ACJ largely depends on the integrity of acromioclavicular ligament, coracoclavicular ligament, capsule, trapezius muscle and deltoid muscle. The injury has been classified by Rockwood into six types and treatment options can be guided by the classification. TightRope fixation is one of the many surgical procedures available to address acromioclavicular joint separation. It consists of tensioning of a no...
March 2017: Malaysian Orthopaedic Journal
https://www.readbyqxmd.com/read/28432435/c4-5-foraminal-stenosis-predicts-c5-palsy-after-expansive-open-door-laminoplasty
#5
Ho-Jin Lee, Jae-Sung Ahn, Byungkon Shin, Hoseok Lee
INTRODUCTION: Laminoplasty is frequently performed in cervical myelopathy patients, but can lead to unexpected postoperative C5 palsy. Although several studies have examined the pathogenesis and prevention of postoperative C5 palsy, many controversies remain and some radiological findings identified as risk factors were not correlated with our outcomes. PURPOSE: This study sought reliable radiological findings that predict C5 palsy after laminoplasty and examined why the predictors of C5 palsy did not apply in our series...
April 21, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28431410/gravity-stress-radiographs-and-the-effect-of-ankle-position-on-deltoid-ligament-integrity-and-medial-clear-space-measurements
#6
Ali Ashraf, Jacob Murphree, Eric Wait, Travis Winston, Adam Wooldridge, Matthew Meriwether, Joshua Wilson, Jerry S Grimes
INTRODUCTION: External rotation and gravity stress radiographs have been described to distinguish stable supination-external rotation-II (SER-II) ankle fractures from unstable SER-IV fractures. It has been previously shown that both external rotation and gravity stress views are equivalent in their ability to diagnose deltoid ligament injury. It has also been shown that the position of the ankle influences the external rotation stress radiograph. However, no data of ankle position exist for gravity stress radiographs...
May 2017: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/28327634/scleraxis-is-required-for-maturation-of-tissue-domains-for-proper-integration-of-the-musculoskeletal-system
#7
Yuki Yoshimoto, Aki Takimoto, Hitomi Watanabe, Yuji Hiraki, Gen Kondoh, Chisa Shukunami
Scleraxis (Scx) is a basic helix-loop-helix transcription factor that is expressed persistently in tendons/ligaments, but transiently in entheseal cartilage. In this study, we generated a novel Scx(Cre) knock-in (KI) allele, by in-frame replacement of most of Scx exon 1 with Cre recombinase (Cre), to drive Cre expression using Scx promoter and to inactivate the endogenous Scx. Reflecting the intensity and duration of endogenous expression, Cre-mediated excision occurs in tendinous and ligamentous tissues persistently expressing Scx...
March 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28318315/the-epidemiology-of-deltoid-ligament-sprains-in-25-national-collegiate-athletic-association-sports-2009-2010-through-2014-2015-academic-years
#8
Thomas J Kopec, Elizabeth E Hibberd, Karen G Roos, Aristarque Djoko, Thomas P Dompier, Zachary Y Kerr
CONTEXT:   Deltoid ligament sprains among collegiate student-athletes have not been extensively investigated. Research regarding the mechanisms, participation-restriction time, and recurrence of deltoid ligament sprains in collegiate student-athletes is lacking. OBJECTIVE:   To describe the epidemiology of deltoid ligament sprains in 25 National Collegiate Athletic Association championship sports. DESIGN:   Descriptive epidemiology study...
April 2017: Journal of Athletic Training
https://www.readbyqxmd.com/read/28296225/treatment-of-medial-malleolus-or-pure-deltoid-ligament-injury-in-patients-with-supination-external-rotation-type-iv-ankle-fractures
#9
Xu Wang, Chao Zhang, Jian-Wen Yin, Chen Wang, Jia-Zhang Huang, Xin Ma, Cheng-Wei Wang, Xue Wang
OBJECTIVE: To investigate the effect of internal fixation on postoperative ankle function in patients with supination-external rotation type IV ankle fractures, including medial malleolus fractures and deltoid ligament injury. METHODS: Between January 2012 and June 2014, patients with medial structure injuries were enrolled in this study and assigned to the medial malleolus fracture group or the deltoid ligament group. The surgical procedures for the two groups were documented...
February 2017: Orthopaedic Surgery
https://www.readbyqxmd.com/read/28176604/c5-nerve-root-palsy-after-posterior-cervical-spine-surgery
#10
Fu-Min Pan, Shan-Jin Wang, Bin Ma, De-Sheng Wu
BACKGROUND: C5 palsy is a serious complication after cervical decompression surgery in which the patient shows a deterioration in power of the deltoid or biceps brachii by at least one grade in the manual muscle test without aggravation of lower extremity function. Although there are several hypotheses regarding the etiology of C5 palsy, the pathogenesis and preventive measures remain unidentified and many other controversies remain. OBJECTIVE: To systematically review the clinical features, risk factors, mechanism, and preventive measures of C5 palsy after posterior cervical decompression surgery...
January 2017: Journal of Orthopaedic Surgery
https://www.readbyqxmd.com/read/28160934/arthroscopic-quantification-of-syndesmotic-instability-in-a-cadaveric-model
#11
Ross Feller, Todd Borenstein, Amanda J Fantry, Roy Bradley Kellum, Jason T Machan, Florian Nickisch, Brad Blankenhorn
PURPOSE: To investigate whether arthroscopy or stress radiography can identify instability resulting from single-ligament injury of the ankle syndesmosis and to determine whether either modality is capable of differentiating between various levels of ligament injury. METHODS: Syndesmotic/deltoid ligament sectioning was performed in 10 cadaver legs. Arthroscopic evaluation and fluoroscopic stress testing were completed after each sectioning. In group 1 (n = 5), sectioning began with anteroinferior tibiofibular ligament (AITFL), then interosseous membrane (IOM), posteroinferior tibiofibular ligament (PITFL), and deltoid...
February 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28129269/the-effect-of-varying-tension-of-a-suture-button-construct-in-fixation-of-the-tibiofibular-syndesmosis-evaluation-using-stress-computed-tomography
#12
John Morellato, Hakim Louati, Andrew Bodrogi, Andrew Stewart, Steven Papp, Allan Liew, Wade Gofton
BACKGROUND/PURPOSE: There have been no studies assessing the optimal biomechanical tension of suture button constructs. The purpose of this study was to assess optimal tensioning of suture button fixation and its ability to maintain reduction under loaded conditions using a stress computed tomography (CT) model. METHODS: Ten cadaveric lower limbs disarticulated at the knee were used. The limbs were placed in a modified ankle load frame that allowed for the application of sustained torsional axial or combined torsional/axial loads...
February 2017: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/28105122/analysis-of-3-dimensional-finite-element-after-reconstruction-of-impaired-ankle-deltoid-ligament
#13
Yunhan Ji, Xianzhong Tang, Yifan Li, Wei Xu, Wenjun Qiu
We compared four repair techniques for impaired ankle ligament deltoideum, namely Wiltberger, Deland, Kitaoka and Hintermann using a 3-dimensional finite element. We built an ankle ligament deltoideum model, including six pieces of bone structures, gristles and main ligaments around the ankle. After testing the model, we built an impaired ligament deltoideum model plus four reconstruction models. Subsequently, different levels of force on ankles with different flexion were imposed and ankle biomechanics were compared...
December 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/27992638/medial-malleolar-fractures-and-associated-deltoid-ligament-disruptions-current-management-controversies
#14
REVIEW
Nicholas A Kusnezov, Emmanuel D Eisenstein, Nabih Diab, Ahmed M Thabet, Amr Abdelgawad
Operative fixation of medial malleolar fractures, whether isolated or in the setting of bi- or trimalleolar fractures, remains controversial. Increasingly, anatomic reduction and internal fixation is used to treat medial malleolar fractures to avoid long-term sequelae of symptomatic nonunion and posttraumatic osteoarthritis. However, outcomes have not been significantly different between operative and nonoperative cohorts. Repair of associated deltoid ligament disruption is not common because of reportedly poor outcomes...
March 1, 2017: Orthopedics
https://www.readbyqxmd.com/read/27909670/treating-rotator-cuff-tears-through-a-coracoacromial-mini-open-approach
#15
Wolfram Thomas, Tom Sascha Thomas, Luca Tafuro, Sebastian Walter
The purpose of this study is to present a "smart," open, minimally invasive surgical technique for rotator cuff repair of the shoulder. On the basis of an anatomic study by Tichy, we use a coracoacromial mobile window: We split-not detach-the deltoid muscle by respecting its fibers' orientation and resect the coracoacromial ligament before repairing the torn rotator cuff tendons with anchors. The described approach is fast, is technically uncomplicated, and can be carried out with a standard set of instruments...
October 2016: Arthroscopy Techniques
https://www.readbyqxmd.com/read/27903794/accuracy-and-measurement-error-of-the-medial-clear-space-of-the-ankle
#16
Ogheneochuko Metitiri, Mohammad Ghorbanhoseini, David Zurakowski, Mary G Hochman, Ara Nazarian, John Y Kwon
BACKGROUND: Measurement of the medial clear space (MCS) is commonly used to assess deltoid ligament competency and mortise stability when managing ankle fractures. Lacking knowledge of the true anatomic width measured, previous studies have been unable to measure accuracy of measurement. The purpose of this study was to determine MCS measurement error and accuracy and any influencing factors. METHODS: Using 3 normal transtibial ankle cadaver specimens, deltoid and syndesmotic ligaments were transected and the mortise widened and affixed at a width of 6 mm (specimen 1) and 4 mm (specimen 2)...
April 2017: Foot & Ankle International
https://www.readbyqxmd.com/read/27888852/medial-sided-ankle-pain-deltoid-ligament-and-beyond
#17
REVIEW
Julia Crim
Abnormalities of the medial ligaments and posterior tibial tendon can occur because of acute injury or chronic instability or malalignment. Medial ankle injuries may occur because of pronation or supination-external rotation injuries. Deltoid ligament injuries have a significant impact on lateral ankle instability but can be overlooked in patients with lateral ligament injuries. Posterior tibial tendon dysfunction is usually associated with spring ligament or flexor retinaculum injury. Tarsal tunnel syndrome, accessory flexor muscles, and subtalar coalition should be considered as well as ligament and tendon tears in differential diagnosis of chronic medial ankle pain...
February 2017: Magnetic Resonance Imaging Clinics of North America
https://www.readbyqxmd.com/read/27816101/role-of-ankle-arthroscopy-in-management-of-acute-ankle-fracture
#18
Kwok Bill Chan, Tun Hing Lui
PURPOSE: To report the operative findings of ankle arthroscopy during open reduction and internal fixation of acute ankle fractures. METHODS: This was a retrospective review of 254 consecutive patients with acute ankle fractures who were treated with open reduction and internal fixation of the fractures, and ankle arthroscopy was performed at the same time. The accuracy of fracture reduction, the presence of syndesmosis disruption and its reduction, and the presence of ligamentous injuries and osteochondral lesions were documented...
November 2016: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/27807288/the-morphology-and-prevalence-of-the-deltoid-complex-ligament-of-the-ankle-a-meta-analysis-of-cadaveric-studies
#19
REVIEW
Kaissar Yammine
The deltoid ligament is a complex structure of the tibiotalar joint that limits the translation and tilting of the talus. It is often associated with injuries of the ankle joint. The deltoid complex ligament has 2 layers; one superficial with 4 bands and the other deep with 2 bands. Nevertheless, the prevalence and size of its components are reported with some variability in the literature. The aim of this meta-analysis is to generate weighted values of the prevalence, size, and attachment surface areas of its components...
November 1, 2016: Foot & Ankle Specialist
https://www.readbyqxmd.com/read/27755331/the-effect-of-varying-tension-of-a-suture-button-construct-in-fixation-of-the-tibiofibular-syndesmosis-evaluation-using-stress-computed-tomography
#20
John Morellato, Hakim Louati, Andrew Bodrogi, Andrew Stewart, Steven Papp, Allan Liew, Wade Gofton
BACKGROUND/PURPOSE: There have been no studies assessing the optimal biomechanical tension of suture button constructs. The purpose of this study was to assess optimal tensioning of suture button fixation and its ability to maintain reduction under loaded conditions using a stress computed tomography (CT) model. METHODS: Ten cadaveric lower limbs disarticulated at the knee were used. The limbs were placed in a modified ankle load frame that allowed for the application of sustained torsional axial, or combined torsional/axial loads...
October 13, 2016: Journal of Orthopaedic Trauma
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