Robert Singer

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Selective electron beam melting (SEBM) was successfully used to fabricate novel cellular Ti-6Al-4V structures for orthopaedic applications. Micro computer tomography (microCT) analysis demonstrated the capability to fabricate three-dimensional structures with an interconnected porosity and pore sizes suitable for tissue ingrowth and vascularization.(More)
Highly porous titanium structures are widely used for maxillofacial and orthopedic surgery because of their excellent mechanical properties similar to those of human bone and their facilitation of bone ingrowth. In contrast to common methods, the generation of porous titaniumproducts by selective electron beam melting (SEBM), an additive manufacturing(More)
The aim of the study was to assess the suitability of different Ti-6Al-4V surfaces produced by the electron beam melting (EBM) process as matrices for attachment, proliferation, and differentiation of human fetal osteoblasts (hFOB 1.19). Human osteoblasts were cultured in vitro on smooth and rough-textured Ti-6Al-4V alloy disks. By means of cell number and(More)
Despite the many benefits of ambulatory surgery, there remain inherent risks associated with any surgical care environment that have the potential to jeopardize patient safety. This practice advisory provides an overview of the preoperative steps that should be completed to ensure appropriate patient selection for ambulatory surgery settings. In(More)
The medical profession is besieged by concerns about cost containment. This in turn has focused attention on the use of ambulatory surgical facilities. However, the costs of hospital outpatient surgery programs usually prevent them from being competitive when compared with the costs of using office surgical facilities. To address the question of patient(More)
BACKGROUND The American Association for Accreditation of Ambulatory Surgery Facilities (AAAASF) has reported statistics on morbidity and mortality for facilities that it accredits based on an analysis of unanticipated sequelae and surgical mortality. Data acquired through the first Internet-Based Quality Assurance and Peer Review reporting system (IBQAP)(More)
Assessing the quality of care delivered in office-based outpatient surgery centers is difficult because formerly there was no central data collection system. The American Association for Accreditation of Ambulatory Surgery Facilities (AAAASF), in its ongoing effort to assess and improve patient care, has developed an Internet-based quality improvement and(More)
BACKGROUND The American Society of Plastic Surgeons and the American Society for Aesthetic Plastic Surgery launched a joint Cosmetic Medicine Task Force to address the growing trend of non-plastic surgeons entering the cosmetic medicine field. The task force commissioned two surveys in 2007 to determine consumer attitudes about choosing cosmetic medicine(More)