Search results for "BONE"

Osteosarcoma of the Trapezium

2021

Osteogenic sarcoma is a malignant tumor that rarely affects the hand. When it does, it most often involves the phalanges or metacarpal heads. We present the case of a 51-year-old woman with a low-grade osteosarcoma affecting the trapezium bone of her left hand. A total trapeziectomy with partial removal of the first metatarsal, scaphoid, trapezoid, and capitate bones was performed, and no adjuvant therapy was administered. Six years after the intervention, the patient is disease-free, with excellent functionality and yearly imaging tests showing no signs of recurrence.

Review of: "Teriparatide Promotes Bone Healing in Medication-Related Osteonecrosis of the Jaw: A Placebo-Controlled, Randomized Trial"

2020

Death caused by a chain saw – homicide, suicide or accident?

1999

A 31-year-old farm worker was found dead beside a chain saw. Based on the testimony of a colleague and because of the situation at the site, the police very soon presupposed an accident. It was assumed that the victim had slipped on the sodden ground and had been killed by the subsequent swerving of the saw when starting the engine. The body presented with a deep lacerated wound at the right side of the nape of the neck, including the first cervical vertebra, the medullary canal and the right mandible as well as multiple fissures of the occipital bone, which were attributed to repeated forceful use of the chain by another person. A second wound with relatively sharp edges and a tangential f…

Ungewöhnlicher Verlauf von otobasalen Frakturen mit Liquorrhoe*

1993

In the literature the persistence of cerebrospinal Liquorrhea after temporal bone fractures is a rare event. Between 1989 and 1992 four cases of temporal bone fractures with dural involvement were operated at the University ENT Department Mainz. These temporal bone fractures showed delayed or persistent symptoms of dural lacerations between three and sixty months after head injury. During operation we found larger bone-dura defects (1-1.5 cm in diameter) and brain herniations in all cases. Strohm stated that only in rare cases a temporal bone fracture produced a larger gap in the tegmen tympani or antri. Therefore, we assumed that in our cases such larger bone-dura defects were caused by a …

2021

Purpose: Moderate-to-vigorous physical activity (MVPA) positively influences bone mineral content (BMC) in prepubertal children, but it is unknown whether this relationship is partially mediated by free leptin index. The aim of this study was to examine whether the relationship between MVPA and total body less head (TBLH) BMC is mediated or moderated by free leptin index in prepubertal children. Methods: We performed a cross-sectional analysis on 401 children (194 girls) from baseline examinations of the Physical Activity and Nutrition in Childhood Study. We applied the four-way decomposition mediation analysis method to assess whether free leptin index, measured from fasted blood samples, …

Beidseitige progrediente Hörminderung als Erstmanifestation eines metastasierenden Pankreaskopfkarzinoms - Kasuistik -

2001

We report the history of a patient who presented first with a progressive unilateral hearing loss and later with a bilateral deafness and an unilateral facial nerve palsy as first and only symptoms of a pancreatic adenocarcinoma. By means of magnetic resonance tomography tumor-suspect lesions in both internal auditory canals were detected. Referring to the results of further examinations these intracanalicular lesions are most probably due to rarely seen bilateral metastasis of a pancreatic adenocarcinoma in the temporal bone. In addition to this rarely diagnosed localisation of metastasis it is rather uncommon that this kind of primary malignoma had not been detected because of gastrointes…

Management and Prevention of Complications of Guided Bone Regeneration

2019

Abstract Guided bone regeneration using titanium-reinforced expanded teflon non-absorbable membranes (e-PTFE) has proven, through rigorous studies on many occasions, that it is a safe and predictable method to achieve bone growth at mandible and maxilla level, both vertically and horizontally. However, the technique itself is one that requires special operative skills and is not without postoperative complications. The purpose of this paper is to review most of these postoperative complications, their management and the key operative elements that help preventing them. Complications are presented both from the perspective of the meta-analysis performed from the present literature and from t…

Muscle strength before and mortality after a bone fracture in older people

2002

We studied whether muscle strength measured before a bone fracture predicts mortality following the fracture. The participants were a sub-cohort of 82 people of a total of 493 Evergreen project participants initially aged 75- and 80 years, who had participated in knee extension strength tests as part of the baseline examinations, and who subsequently suffered at least one bone fracture. Maximal isometric knee extension strength was measured at baseline using an adjustable dynamometer chair. Fracture surveillance was carried out from patient records for 5 years, and mortality surveillance from population register for 10 years after baseline examinations. Average time till a fracture occurred…

The pathophysiology of aging bone jaw: primary and secondary prevention

2010

The skeleton is composed of approximately 200 bones, and it is the backbone of our body along with ligaments and joints. The bone is not a static but a dynamic structure, constantly reshuffling, that may suffer fractures due to trauma, despite their particular hardness and strength. Complex physiologic mechanisms, sometimes with the help of surgery, can lead to bone repairing. In the elderly, often, the skeletal system can be affected by osteoporosis, a "silent disease" that causes fragile bones especially of the vertebrae and femur; its contributing factors are menopause (in women), smoking, nutritional deficiencies, systemic diseases or prolonged use of drugs. The masticatory apparatus an…

Pulsed radiofrequency energy device (PEAK plasmablade™) and CustomBone® Cranioplasty: an appealing surgical rendez-vous

2019

Background: CustomBone® prosthesis is a widely recognized effective and successful technique for the reconstruction of cranial bone defects. Prior the cranioplasty implant, meticulous dissection wi...