Magnesium based implants could revolutionize applications where orthopedic implants such as nails, screws or bone plates are used because they are load bearing and degrade over time. This prevents a second surgery to remove conventional implants. To improve the biocompatibility we studied here if and for how long a pre-incubation of the material under cell culture conditions is favorable for ce...

* Student at the graduate program in Orthodontics (Master’s) UNICID. Faculty, Specialization Course in Orthodontics IOM/UNIG (RJ). Faculty, Specialization Course in Orthodontics ABO/ Niterói (RJ). Coordinador, Department of Orthodontics, General Policlinic, Rio de Janeiro. ** Doctorate Faculty, Craniofacial Rehabilitation Hospital / University of São Paulo (USP-Bauru). *** Associate Faculty, Or...

Two new Chinese species of the leafhopper genus Onukigallia, Onukigallia neoonukiisp. n. from Sichuan and Guangdong Provinces, and Onukigallia tumidasp. n. from Hubei and Hunan Provinces are described and illustrated. A key and an updated checklist with distributions of Onukigallia species are provided.

Tibia segmental defect healing in sheep were clinically, radiographically and histologically evaluated. Twelve young sheep aged four to five months were divided into two groups, G1 and G2. A 3.5 cm long segmental defect was created in the right tibial diaphysis with maintenance of the periosteum. The bone defects in both groups were stabilized with a bone plate combined with a titanium cage. In...

Neruchella eichwaldi gen. et sp. nov. is erected on the basis of a head shield found in Famennian Lebedyanian Regional Stage Orel Region, Russia. The new taxon differs from all known ptyctodontids, and characterized by central plates contact along skull midline, meeting sensory-line canals centrals loss nuchal plate. structures shields two ptyctodontids Chelyophorus are completely different gen...

Several papers in this issue of the Journal address topics in the theme of plate and screw fixation (1–4). A critical element of this form of internal fixation is that the maintenance of stability provided by the plate relies heavily on the integrity of the screw fixation. Bone screws can perform their work in several ways. In conventional plate fixation, the head of a tightened screw compresse...

Aim: To study the functional outcomes of internal fixation in complex tibial plateau fractures. Materials and Methods: 51 patients presenting with complex tibial plateau fractures were treated between January,2013 to January,2016 with various modes of internal fixation depending on the fracture type. Subsequently the patients were followed up at 2,6,12,18 and 24 weeks and then at intervals of t...

Since 1961 bone turnover has been examined using various radio-labeled substances. In 1971 bone scintigraphy was performed the first time using modern 99mTc-labeled polyphosphonates, e.g. 99mTc-hydroxyethylenephosphonate(HDP) or 99mTc-methoxyethylenephosphonate (MDP). After intravenous injection, these radiopharmaceuticals are adsorbed at the bone surface within some hours. The amount of adsorp...

Introduction: The magnesium alloy was fabricated into orthopedic plates, and used to repair tibial fractures of New Zealand white rabbits. osteogenesis degradation behavior plates were investigated in vivo. Methods: 38 rabbits randomly divided an experimental group using the plate control a titanium plate. Tibial fixed with respectively. An X-ray fracture site taken at 1, 2, 4, 8, 16 weeks afte...