Jonathan M. Bekisz

The Role of Adenosine Receptor Activation in Attenuating Cartilaginous Inflammation

Adenosine receptor activation has been explored as a modulator of the inflammatory process that propagates osteoarthritis. It has been reported that cartilage has enhanced regenerative potential when influenced by adenosine receptor activation. As adenosine’s role in maintaining chondrocyte homeostasis at the cellular and molecular levels is explored, successful in vivo applications of adenosine delivery for cartilage repair continue to be reported. This review summarizes the role adenosine receptor ligation plays in chondrocyte homeostasis and regeneration of articular cartilage damaged in osteoarthritis. It also reports on all the modalities reported for delivery of adenosine through in vivo applications.

In-House Manufacture of Sterilizable, Scaled, Patient-Specific 3D-Printed Models for Rhinoplasty

BACKGROUND Rhinoplasty relies on clear patient communication and precise execution of a three-dimensional (3D) plan to achieve optimal results. As 3D imaging and printing continue to grow in popularity within the medical field, rhinoplasty surgeons have begun to leverage these resources as an aid to preoperative planning, patient communication, and the technical performance of this challenging operation. OBJECTIVES Utilizing departmentally available resources and open-access 3D imaging platforms, we have developed an affordable, reproducible protocol for rapid in-house virtual surgical planning (VSP) and subsequent manufacture of 3D-printed rhinoplasty models. METHODS Preoperative 3D photographic images underwent virtual rhinoplasty using a freely available 3D imaging and sculpting program (BlenderTM [Version 2.78, Amsterdam, The Netherlands]). Once the ideal postoperative result was digitally achieved, scaled, sterilizable, and patient-specific 3D models of the preoperative and ideal postoperative result were manufactured in-house using a departmentally owned 3D printer. RESULTS 3D-printed models have successfully been manufactured and employed for 12 patients undergoing rhinoplasty. The average time to prepare a set of pre- and postoperative models was 3 hours, while the printing process required 18 to 24 hours per model. Each set of surgical models can be manufactured at a total materials cost of approximately

Local delivery of adenosine receptor agonists to promote bone regeneration and defect healing

5.00. CONCLUSIONS We describe an affordable means to construct sterilizable, scaled, patient-specific 3D-printed models for rhinoplasty. This technique may become of increasing interest to academic and cosmetic centers as hardware costs of 3D printers continue to fall. LEVEL OF EVIDENCE: 4

Variations in Databases Used to Assess Academic Output and Citation Impact

Adenosine receptor activation has been investigated as a potential therapeutic approach to heal bone. Bone has enhanced regenerative potential when influenced by either direct or indirect adenosine receptor agonism. As investigators continue to elucidate how adenosine influences bone cell homeostasis at the cellular and molecular levels, a small but growing body of literature has reported successful in vivo applications of adenosine delivery. This review summarizes the role adenosine receptor ligation plays in osteoblast and osteoclast biology and remodeling/regeneration. It also reports on all the modalities described in the literature at this point for delivery of adenosine through in vivo models for bone healing and regeneration.

Abstract 47. Dipyridamole-Containing 3D-Printed Bioactive Ceramic Scaffolds for the Treatment of Calvarial Defects: An Experimental Study in Sheep

An analysis of listings of 1469 clinical and research faculty in PubMed, Web of Science, Scopus, and Google Scholar showed major differences in numbers of publications and citations and in the h-index (a measure of productivity and citations) for each author.

Three dimensionally printed bioactive ceramic scaffold osseoconduction across critical-sized mandibular defects

T ueday, M arch 8, 2017 METHODS: One hundred fifty-eight patients with 277 expanded skin cases during 2010 to 2014 were reviewed and photograph-evaluated for the expanded skin texture and regenerative condition. Overall texture of the expanded skin flaps (Good, Fair, Poor) were evaluated and documented by senior attending surgeons. The occurrence of five indications of skin regeneration limitation, including skin thickness, skin color, stretch mark, vessel varicose and skin lesion, during skin expansion were recorded. The correlation of indications to overall skin regeneration condition was statistically analyzed.