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Deltoid ligament

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https://www.readbyqxmd.com/read/28327634/scleraxis-is-required-for-maturation-of-tissue-domains-for-proper-integration-of-the-musculoskeletal-system
#1
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
#2
Elizabeth E Hibberd, Thomas J Kopec, 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. SETTING: National Collegiate Athletic Association Injury Surveillance Program...
March 20, 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
#3
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...
March 10, 2017: Orthopaedic Surgery
https://www.readbyqxmd.com/read/28176604/c5-nerve-root-palsy-after-posterior-cervical-spine-surgery
#4
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
#5
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
#6
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
#7
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
#8
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...
December 19, 2016: Orthopedics
https://www.readbyqxmd.com/read/27909670/treating-rotator-cuff-tears-through-a-coracoacromial-mini-open-approach
#9
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
#10
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)...
November 29, 2016: Foot & Ankle International
https://www.readbyqxmd.com/read/27888852/medial-sided-ankle-pain-deltoid-ligament-and-beyond
#11
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
#12
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
#13
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
#14
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
https://www.readbyqxmd.com/read/27672463/a-case-of-successful-foraminotomy-for-severe-bilateral-c5-palsy-following-posterior-decompression-and-fusion-surgery-for-cervical-ossification-of-posterior-longitudinal-ligament
#15
Yoshifumi Kudo, Tomoaki Toyone, Toshiyuki Shirahata, Tomoyuki Ozawa, Akira Matsuoka, Yoichi Jin, Katsunori Inagaki
We report a very rare (5~7%) case of bilateral C5 palsy after cervical surgery. A 71-year-old male patient with cervical ossification of posterior longitudinal ligament (OPLL) with foraminal stenosis at bilateral C4/5 underwent posterior decompression and fusion surgery. After surgery, muscle weakness in his both deltoid and biceps was detected and gradually deteriorated to complete paralysis. Postoperative MRI showed sufficient decompression of the spinal cord and posterior shifting. Subsequently, an additional bilateral foraminotomy at C4/5 was performed, with a suspicion that bilateral foraminal stenosis at C4/5 may have been the cause of the paresis...
2016: Case Reports in Orthopedics
https://www.readbyqxmd.com/read/27672062/biomechanical-analysis-of-stability-of-posterior-antiglide-plating-in-osteoporotic-pronation-abduction-ankle-fracture-model-with-posterior-tibial-fragment
#16
Kathleen Hartwich, Alejandro Lorente Gomez, Jaroslaw Pyrc, Radosław Gut, Stefan Rammelt, René Grass
BACKGROUND: We performed a biomechanical comparison of 2 methods for operative stabilization of pronation-abduction stage III ankle fractures; group 1: Anterior-posterior lag screws fixing the posterior tibial fragment and lateral fibula plating (LSLFP) versus group 2: locked plate fixation of the posterior tibial fragment and posterior antiglide plate fixation of the fibula (LPFP). METHODS: Seven pairs of fresh-frozen osteoligamentous lower leg specimens (2 male, and 5 female donors) were used for the biomechanical testing...
January 2017: Foot & Ankle International
https://www.readbyqxmd.com/read/27618430/morphological-variations-of-the-deltoid-ligament-of-the-medial-ankle
#17
Hyung-Jin Won, In Jun Koh, Hyung-Sun Won
Morphological variations of the deltoid ligament were investigated in this study, with the aim of classifying the different types on the basis of their components. Sixty ankles from 39 cadavers were dissected. The origin and insertion sites of the deltoid ligament were identified, and its length, width, and thickness were measured. The deltoid ligament was divided into two layers, superficial and deep, which respectively comprised four components (tibionavicular, tibiospring, tibiocalcaneal, and superficial posterior tibiotalar ligaments) and two components (anterior tibiotalar and deep posterior tibiotalar ligaments)...
November 2016: Clinical Anatomy
https://www.readbyqxmd.com/read/27600992/injury-patterns-of-the-acromioclavicular-ligament-complex-in-acute-acromioclavicular-joint-dislocations-a-cross-sectional-fundamental-study
#18
Dirk Maier, Martin Jaeger, Kilian Reising, Matthias J Feucht, Norbert P Südkamp, Kaywan Izadpanah
BACKGROUND: Horizontal instability impairs clinical outcome following acute acromioclavicular joint (ACJ) reconstruction and may be caused by insufficient healing of the superior acromioclavicular ligament complex (ACLC). However, characteristics of acute ACLC injuries are poorly understood so far. Purposes of this study were to identify different ACLC tear types, assess type-specific prevalence and determine influencing cofactors. METHODS: This prospective, cross-sectional study comprised 65 patients with acute-traumatic Rockwood-5 (n = 57) and Rockwood-4 (n = 8) injuries treated operatively by means of mini-open ACJ reduction and hook plate stabilization...
2016: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/27556250/patient-specific-computational-models-to-optimize-surgical-correction-for-flatfoot-deformity
#19
Brian A Smith, Robert S Adelaar, Jennifer S Wayne
Several surgically corrective procedures are considered to treat Adult Acquired Flatfoot Deformity (AAFD) patients, relieve pain, and restore function. Procedure selection is based on best practices and surgeon preference. Recent research created patient specific models of AAFD to explore their predictive capabilities and examine effectiveness of the surgical procedure used to treat the deformity. The models' behavior was governed solely by patient bodyweight, soft tissue constraints, muscle loading, and joint contact without the assumption of idealized joints...
August 24, 2016: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/27505955/-case-control-study-on-two-suturing-methods-for-the-repairing-of-complete-rupture-of-the-deltoid-ligament
#20
Tao Zhang, Chun-you Wan, Bao-tong Ma, Wei-guo Xu, Xiao-long Mei, Peng Jia, Lei Liu
OBJECTIVE: To compare clinical outcomes between two suturing methods using non absorbable materials through drilling the bone and suturing anchors for the treatment of complete rupture of the deltoid ligament. METHODS: From January 2009 to January 2013, 58 hospitalized patients with ankle fracture combined with complete rupture of the deltoid ligament were treated with suturing using non absorbable materials through drilling the bone or suturing anchors. There were 29 patients who received suturing treatments using non absorbable materials through drilling the bone (Group A), including 18 males and 11 females, with an average age of (39...
May 2016: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
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