A Case of Eagle's Syndrome after Blunt Neck Trauma / 대한이비인후과학회지

Eagle's syndrome has various symptoms at cervico-facial lesion. Recently, we have experienced a case of Eagle's syndrome that developed after a blunt neck trauma. A 51-year-old man presented with a click sound when he turned his head to the right. The symptom had developed after a traffic accident that occurred 2 months ago. Physical examination revealed a long styloid process that was easily palpable and burging out into the right tonsillar fossa. Radiologic examination did not reveal any presence of fracture on stylohyoid complex including stylohyoid ligament. We underwent a transoral resection of styloid process and released a stylohyoid ligament. The patient immediately experienced a relief of the symptom following the operation. It might be elucidated that the patient had an elongated styloid process and that the neck trauma had developed due to the dislocation or pseudoarticulation between stylohyoid ligament and the hyoid bone. Transoral resection of styloid process released pseudoarticulation and relieved the symptom.

Histological Observation of Bone Reaction with Relation to Surface Treatment of Titanium / 영남의대학술지

The biocompatibility of the titanium has been estabilished through various experimental studies such as cell culture toxicity test, pyrogen test, mutagen test and others. In order to confirm biocompatibility after fabrication of titanium and to clarify the difference between the bone reaction after insertion of the lathed titanium rods and the bone reaction after insertion of the finished and polished rods, both rods were implanted into the proximal femur of a rabbit. Histologic reactions in the bone were observed according to the ASTM standards at the intervals of 6 weeks, 12 weeks and 26 weeks after implantation. The result were as follows In 6 weeks after implantation of lathed titanium rods, inflammatory reactions, such as minimal degree infiltration of polymorphonuclear leukocytes and lymphocytes were observed in all cases. This was thought to be caused by surgical trauma. However, inflammatory cell infiltration was not seen after implantation of polished and finished rods in all cases. The cellular infiltration and the histologic reaction of the bone after implantation of lathed group were significantly more pronounced than those after implantation of the finished group. In 12 weekt after implantation of lathed rods, two of four cases revealed a minimal degree of cellular infiliration and histologic reaction seemed to be more pronounced in the lathed group, but they were not significant statistically.