Biomedical subjects

Nihat Tosun

Publications and source records attributed to Nihat Tosun.

6 recordsLinked to original sources

PubMed2005

An evaluation of civilian aviation accidents in Turkey from 1955 to 2004.

BACKGROUND: Documentation and analysis of aviation accidents is very important to improve aviation safety and post-accident survival. In this study we aimed to evaluate the civilian aviation accidents between 1955 and 2003 in Turkey to identify the risk factors for fatal and non-fatal injuries. METHODS: Records of Civilian Aviation Office of The Turkish Ministry of Transportation were retrospectively analyzed. RESULTS: A total of 562 aviation accidents occurred within the boundaries of Turkey in the 48-year study period. There was at least one casualty in 237 of these accidents. There were 27 major accidents with more than 5 casualties. There were more major accidents with survivors than without survivors. Major accidents occurred more frequently within the near vicinity of an airport. There are significantly more accidents with survivors in the accidents occurring near the airports. The mean number of accidents with more than 50 casualties is 0.167 (8/48) per year. CONCLUSION: Accidents occurring near the airports have a more chance of having survivors. Emergency disaster preparedness plans should be on hand and drills with no more than 50 injured should be regularly exercised in all airports.

Accidents, Aviation↗

PubMed2004

[Tibial osteomyelitis following intraosseous infusion: a case report].

Fluids, medications, and blood products can be rapidly administered via intraosseous infusion under emergency conditions, particularly to pediatric patients aged from 0 to 2 years. A five-month-old infant who had been hospitalized with a diagnosis of sepsis developed swelling and hyperemia at the infusion site 10 days after an intraosseous infusion in the right proximal tibia. Physical examination showed a serous discharge from a fistula on the anteromedial side of the right proximal cruris. Plain radiographs demonstrated periosteal reaction in the right tibia and osteolytic areas in the proximal metaphysis. With a diagnosis of acute osteomyelitis, drainage and medullary irrigation were performed and parenteral antibiotic treatment was initiated. Cultures from the surgical site yielded Candida albicans, upon which fluconazole (8 mg/kg) treatment was administered for four weeks. A complete clinical and radiographic improvement was observed at the end of a 12-month follow-up.

Antifungal Agents↗

PubMed2003

Morphologic evaluation of the ulna.

Intramedullary ulnar nailing may be technically difficult. We used various methods and measurements to determine the ideal nail entry point and the shape, length, diameter and curvature of the medullary canal in 44 human cadaver ulnas. We found that the ideal nail entry point was, on average, 7 mm proximal and 3 mm lateral to the most prominent area of the olecranon. A nail of 3 mm diameter could easily be inserted through a hole at the proximal-lateral side of the most prominent part of the olecranon, but only 20% of all nails could be easily inserted through a hole in the middle of the olecranon. We found that correct selection of a nail of proper length and diameter, as well as an ideal nail entry point on the olecranon are essential to successful nailing.

Adult↗

PubMed2003

A morphometric study on the humerus for intramedullary fixation.

In recent years, the popularity of intramedullary humeral nailing is on the rise in spite of its handicaps. There are many problems in intramedullary humeral stabilization because of the anatomic structure of the bone. We performed various methods and measurements to determine shape, length and diameter and curvature of the medullary canal of the humerus in 57 human dry cadaver bones. Anterior angulation with an average of 21 cm apart from greater tubercle was found at 1/3 distal part. Mean degree of angulation was 9 degrees (max: 15, minutes: 5, S.D.: 2.84). Humerus bones with septal aperture (supratrochlear foramen) at the fossa coronoidea were observed to have very narrow medullary canal. The best point for nail insertion was found to be an area on the line from greater tubercle anteromedially to caput humeri. This study revealed that carefully evaluated structure of humeral medullary canal and various congenital constructions such as septal aperture, and correct selection of a nail with proper length and diameter are essential for successful nailing.

Adult↗

PubMed2002

[Preliminary results for treatment of tibial plateau fractures with the Ilizarov technique of ligamentotaxis].

BACKGROUND: The results of the eight patients who admitted to emergency room with tibial plateau fractures and treated with Ilizarov technique, were retrospective evaluated both clinically and radiologically. METHODS: Seven (87%) men and one (13%) woman ranging in age from 23 to 38, were evaluated. All the cases were between type IV to VI according to Hohl classification preoperatively. Closed indirect reduction by ligamentotaxis was attempted in all fractures, no open technique was performed. RESULTS: Three (38%) cases had open fractures (type I according to Gustilo-Andersen Classification) preoperatively. Six (75%) traffic accident and two (25%) falling from a height were detected as etiology. The cases, whose average follow up was 14 (6-28) months, were evaluated according to Iowa knee score scale and seven (87%) cases were good and excellent. Both clinical and radiological solid fusion were obtained in all cases after removing the frame. Although all the cases had minimal to moderate pin tract infection, all were resolved with dressing and oral antibiotherapy without removing the wires. CONCLUSIONS: Closed reduction with Ilizarov technique is appropriate for treatment of plateau tibia fractures with minimal morbidity.

Adult↗

PubMedDate not supplied

Calcaneal brown tumor with primary hyperparathyroidism caused by parathyroid carcinoma: an atypical localization.

Brown tumors are one of the characteristics of primary hyperparathyroidism, although, in some cases, they are noted with secondary hyperparathyroidism as well. The authors present a case of a 50-year-old woman with primary hyperparathyroidism caused by parathyroid carcinoma with an unusual location of a brown tumor in the calcaneus. She first presented with pain and swelling over the heel and ankle, and the diagnosis was suspected by radiographs. Biopsy of the calcaneal lesion confirmed a brown tumor. After the parathyroid lesion was removed surgically, her symptoms were relieved. The calcaneal lesion was treated with immobilization of the foot.

Bone Neoplasms↗