Papers by Keyword: Bone Loss

Abstract: Modern traumatology is characterized by high energy trauma, simultaneously affecting parts of the body especially in young patients. One of the most severe aspects resulting of high energy trauma is that of multiple skeletal injuries, with bone loss, which require complex treatment; this refers both to methods of filling the bone defects and to interdisciplinary approach whenever soft tissues are injured, as well. This case demonstrate the impact of modern approach in high energy trauma, with multiple aspects: bone substitutes as effective technique of bone filling and prevention of septic complications, as well as team work for concomitant treatment of associated injuries. The outcome of the patient, compared to the initial status, demonstrate the benefit of bone substitutes for a rapid recovery of trauma patients, with major impact on social and professional recovery.

Abstract: Bone loss is a well-known consequence of skeletal unloading in long-duration spaceflight. Its prevention and recovery do not have a perfect solution and often require physical therapy. In this paper, we developed a system to prevent and recover bone loss with the combination of electrical stimulation (ES) and mechanical stimulation (MS). The system provides four-channel electrical stimulation and two mechanical stimulations. Various parameters of the stimulations can be tuned to achieve the best therapeutic effect.

Abstract: It is important to obtain mechanical coupling between dental implants and bone, because the lack of mechanical coupling may cause bone loss around implants. In this research, a new cylindrical dental implant composed of three parts was designed to offer favored mechanical environment for the bone. A special gap structure changed the means of the stress transmission and decreased the stress in the cortical bone around the neck of the implant. Through finite element analysis (FEA) of stress distribution in bone around implant-bone interface, the advantages of this new implant (reducing stress concentration in cervical cortex and satisfying varieties of clinical needs) were verified. The peak stress for the new design was about 30 percent less than that of the traditional implant and the flexibility of the design was also confirmed by changing the gap depth and the wall thickness.