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calcified ligament

B Speculand
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February 23, 2018: British Dental Journal
Sameep Kadakia, Ameya Jategaonkar, Ansley Roche, Raymond L Chai
Eagle Syndrome can present with a variety of symptoms and be caused by an elongated styloid process or calcified stylohyoid ligament. Patients failing medical management of this disorder may be treated with surgical excision of the styloid process. In the literature, transoral and transcervical approach have both been described. Although transoral approaches typically begin with a tonsillectomy, tonsil-sparing approaches have also been utilized. With the advent of robotic surgery, the potential for a tonsillectomy sparing approach has become a feasible alternative, preventing the pain and morbidity associated with adult tonsillectomy while continuing to provide superior exposure and instrumentation...
January 23, 2018: American Journal of Otolaryngology
S Oezdemir, M Komp, P Hahn, S Ruetten
OBJECTIVE: Resection of a cervical disc herniation using a full-endoscopic technique with an anterior approach. INDICATION: Fresh disc herniation with monoradicular symptoms in the upper extremity. CONTRAINDICATIONS: Pure neck pain, cervical myelopathy, older and calcified disc herniations, higher grade of instability and deformity. SURGICAL TECHNIQUE: Introduction of a guidewire and dilatator to a cervical disc using an anterior approach...
February 1, 2018: Operative Orthopädie und Traumatologie
S Oezdemir, M Komp, P Hahn, S Ruetten
OBJECTIVE: Resection of a cervical disc herniation using a full-endoscopic technique with an anterior approach. INDICATION: Fresh disc herniation with monoradicular symptoms in the upper extremity. CONTRAINDICATIONS: Pure neck pain, cervical myelopathy, older and calcified disc herniations, higher grade of instability and deformity. SURGICAL TECHNIQUE: Introduction of a guidewire and dilatator to a cervical disc using an anterior approach...
January 9, 2018: Operative Orthopädie und Traumatologie
Nancy E Epstein, Renee D Hollingsworth
Background: In the lumbar spine, degenerative spondylolisthesis or degenerative (not traumatic) slippage of one vertebral body over another is divided into 4 grades - grade I (25%), grade II (50%), grade III (75%), and grade IV (100%). Dynamic X-rays, magnetic resonance (MR), and computed tomography (CT) scans document the slip secondary to arthritic changes of the facet joint plus stenosis, ossification of the yellow ligament, disc herniations, and synovial cysts. MR best demonstrates soft tissue pathology whereas CT better delineates ossific/calcified disease...
2017: Surgical Neurology International
R Masumoto, J Kitagaki, M Matsumoto, S Miyauchi, C Fujihara, M Yamashita, S Yamada, M Kitamura, S Murakami
BACKGROUND AND OBJECTIVE: Single nucleotide polymorphisms (SNPs) of paraoxonase 1 (PON1) are known to be associated with the pathogenesis of osteoporosis and periodontitis. However, the effects of PON1 on the osteoblastic differentiation of periodontal ligament (PDL) cells are unclear. In this study, we examined the effects of PON1 on the osteoblastic differentiation of PDL cells, and analysed the role of PON1 SNPs on the pathogenesis of aggressive periodontitis (AgP) in the Japanese population...
October 24, 2017: Journal of Periodontal Research
Dinorath Olvera, Binulal N Sathy, Simon F Carroll, Daniel J Kelly
The ideal tissue engineering (TE) strategy for ligament regeneration should recapitulate the bone - calcified cartilage - fibrocartilage - soft tissue interface. Aligned electrospun-fibers have been shown to guide the deposition of a highly organized extracellular matrix (ECM) necessary for ligament TE. However, recapitulating the different tissues observed in the bone-ligament interface using such constructs remains a challenge. This study aimed to explore how fiber alignment and growth factor stimulation interact to regulate the chondrogenic and ligamentous differentiation of mesenchymal stem cells (MSCs)...
December 2017: Acta Biomaterialia
YaLi Liu, Huaian Yang, Xiangguo Cui
Eagle syndrome is characterized by recurrent pain in the oropharynx and face due to an elongated styloid process or calcified stylohyoid ligament. In this article, we experienced a case of an elongated styloid process which is very rare in size and detailed treatment process. The patient was a 53-year-old Chinese woman with a chief complaint of frequent episodes of radiating pain in left preauricular region for 2 years. An intraoral approach was chosen to shorten part of her styloid process, and the chief complaint disappeared immediately after the operation...
2017: Clinical Medicine Insights. Ear, Nose and Throat
Aaron R H LeBlanc, Denis O Lamoureux, Michael W Caldwell
Squamates present a unique challenge to our understanding of dental evolution in amniotes because they are the only extant tooth-bearing group for which a ligamentous tooth attachment is considered to be absent. This has led to the assumption that mammals and crocodilians have convergently evolved a ligamentous tooth attachment, composed of root cementum, periodontal ligament, and alveolar bone, whereas squamates are thought to possess a single bone of attachment tissue that fuses teeth to the jaws. The identity and homology of tooth attachment tissues between squamates, crocodilians, and mammals have thus been a focal point of debate for decades...
December 2017: Journal of Anatomy
Nancy E Epstein, Renee D Hollingsworth
BACKGROUND: The lumbar spine includes 5 lumbar vertebral bodies, L1, L2, L3, L4, and L5. At each level, there is a disc space defined by the two bones (vertebral bodies) in the back; for example, there is a disc space at the L5-S1 level etc. The normal front to back (anterior to posterior or AP diameter) measurement of the spinal canal is typically 18-20 mm, but some patients have narrowing called spinal stenosis. METHODS: Lumbar stenosis is defined by two major types...
2017: Surgical Neurology International
Ella Harris, Yurong Liu, Grainne Cunniffe, David Morrissey, Simon Carroll, Kevin Mulhall, Daniel J Kelly
Regenerating damaged tissue interfaces remains a significant clinical challenge, requiring recapitulation of the structure, composition, and function of the native enthesis. In the ligament-to-bone interface, this region transitions from ligament to fibrocartilage, to calcified cartilage and then to bone. This gradation in tissue types facilitates the transfer of load between soft and hard structures while minimizing stress concentrations at the interface. Previous attempts to engineer the ligament-bone interface have utilized various scaffold materials with an array of various cell types and/or biological cues...
October 2017: Biotechnology and Bioengineering
Susanne Bradel, Laura Doniga-Crivat, Silke Besdo, Franziska Lexow, Michael Fehr, Thomas Lenarz, Nils Prenzler, Gudrun Brandes
Conclusion. The development of a histological 3D model of the tympanic cavity visualizes the exact microanatomy of the sound conduction organ and is therefore essential for finite elements simulations and surgical training. Objectives. So far, no accurate histological 3D model of the sound conduction system existed in literature. For 3D reconstruction of the very fine structures inside and outside the auditory ossicles, a method based on histological slices allows a more differential analysis of both hard and soft tissues and could thus be superior to μCT...
2017: International Journal of Otolaryngology
Travis W Smoot, Ammar Taha, Nicholas Tarlov, Blake Riebe
Eagle syndrome is defined by an elongated styloid process or a calcified stylohyoid ligament that impinges on surrounding structures and causes a variety of symptoms. Classically, Eagle syndrome presents as neck, throat, or ear pain. The vascular variant, stylocarotid syndrome, can present as headache, transient ischemic attack, or stroke. Carotid artery dissection is a rare complication of stylocarotid syndrome. We report a case of stylocarotid syndrome in a 60-year-old man who presented with a right internal carotid artery (ICA) dissection and focal neurological deficits...
August 2017: Interventional Neuroradiology
Jeffrey M Resnick, Brett Carmichael, Audra Winder, Kathleen M Dominguez
Presented is a case of a hepatic calcified mass complicating umbilical vein catheterization in a neonate and diagnosed by wedge biopsy. Wedge biopsy of the hepatic mass, situated in proximity to the falciform ligament, revealed expansion of portal tracts by fibrosis and calcification. Some aggregates of calcified material appeared in ectatic vascular spaces. The biopsy findings accounted for the radiographic appearance of the mass and the constellation of features were deemed indicative of calcification secondary to umbilical vein catheterization...
June 2017: Pediatric and Developmental Pathology
Avneesh Gupta, Anil Aggrawal, Puneet Setia
The elongation or calcification of the stylohyoid ligament that leads to pressure symptoms, or entrapment of nearby glossopharyngeal nerve or carotid artery, is known as Eagle syndrome. A PubMed search leads to finding of rare fatality among the 49 reported cases. In the present case, the deceased was a 40-year-old male who choked on his food. We hypothesise that the impaction of food in the upper respiratory tract, as well as the inability to intubate the person, were both the result of the calcified stylohyoid ligament...
June 2017: Medico-legal Journal
Huanhuan Liu, Long Yang, Erchen Zhang, Rui Zhang, Dandan Cai, Shouan Zhu, Jisheng Ran, Varitsara Bunpetch, Youzhi Cai, Boon Chin Heng, Yejun Hu, Xuesong Dai, Xiao Chen, Hongwei Ouyang
Management of ligament/tendon-to-bone-junction healing remains a formidable challenge in the field of orthopedic medicine to date, due to deficient vascularity and multi-tissue transitional structure of the junction. Numerous strategies have been employed to improve ligament-bone junction healing, including delivery of stem cells, bioactive factors, and synthetic materials, but these methods are often inadequate at recapitulating the complex structure-function relationships at native tissue interfaces. Here, we developed an easily-fabricated and effective biomimetic composite to promote the regeneration of ligament-bone junction by physically modifying the tendon extracellular matrix (ECM) into a Random-Aligned-Random composite using ultrasound treatment...
May 11, 2017: Acta Biomaterialia
Tahrir N Aldelaimi, Saman W Boskani, Shakhawan M Ali, Payman K Mahmud
Eagle syndrome, defined "stylalgia," occurs when an elongated styloid process or calcified stylohyoid ligament causes dysphagia, facial pain recurrent throat pain or foreign body sensation, also associated symptoms such as neck or throat pain with radiation to the ear. The symptoms related to this condition can be confused or misdiagnosed to a wide variety of facial neuralgias. The incidence of Eagle syndrome varies among population. Usually asymptomatic, it occurs in adult patients, and can be diagnosed by physical examination and radiologically...
May 2017: Journal of Craniofacial Surgery
Sujiwan Seubbuk, Hathaitip Sritanaudomchai, Julalux Kasetsuwan, Rudee Surarit
Periodontal ligament fibroblasts (PDLFs) are important cells, which are involved in maintaining tooth integrity. Diabetes has been found to be associated with periodontal disease in a bidirectional manner. The aim of the present study was to investigate the stemness properties of human PDLFs (HPDLFs) in high glucose conditions. HPDLFs were analyzed for their osteogenic differentiation capacity by inducing the cells with osteogenic medium in various glucose concentrations. The gene expression was then examined using reverse transcription‑quantitative polymerase chain reaction analysis, and examinations of alkaline phosphatase activity and nodule formation were performed...
May 2017: Molecular Medicine Reports
Ching-Jen Wang, Jai-Hong Cheng, Wen-Yi Chou, Shan-Ling Hsu, Jen-Hung Chen, Chien-Yiu Huang
We assessed the pathological changes of articular cartilage and subchondral bone on different locations of the knee after extracorporeal shockwave therapy (ESWT) in early osteoarthritis (OA). Rat knees under OA model by anterior cruciate ligament transaction (ACLT) and medial meniscectomy (MM) to induce OA changes. Among ESWT groups, ESWT were applied to medial (M) femur (F) and tibia (T) condyles was better than medial tibia condyle, medial femur condyle as well as medial and lateral (L) tibia condyles in gross osteoarthritic areas (p<0...
2017: International Journal of Medical Sciences
Tien-Phat V Huynh, Cara A Cipriano, Ian S Hagemann, Michael V Friedman
A case of a right knee intra-articular osteolipoma in a 64-year-old man is reported. The patient presented for evaluation of a 1-year history of nontraumatic, mechanically-exacerbated, medial-sided right knee pain. Radiographs demonstrated a partially calcified 3.0 cm mass anterior to the distal medial femur at the suprapatellar fossa. Magnetic resonance imaging examination confirmed a 4.0 × 3.6 cm well-circumscribed mass deep to the medial patellofemoral ligament, with predominantly fat characteristics on T1-weighted and T2-weighted sequences...
March 2017: Radiology Case Reports
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