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Biomedical subjects

Sait Naderi

Publications and source records attributed to Sait Naderi.

26 records · Page 2Linked to original sources
PubMed2003

Factors affecting reduction in low-grade lumbosacral spondylolisthesis.

OBJECT: Lumbosacral spondylolisthesis (LSS) is a common disorder that often requires a stabilization and fusion procedure. The aim of this study was to determine the early neuroimaging-detected results of instrumentation-assisted (in situ) fusion with no attempt at surgical reduction of the deformity in patients with low-grade LSS. The neuroimaging results were evaluated to determine the extent of reduction and its correlation with different parameters. METHODS: Thirty patients with low-grade LSS underwent short-segment transpedicular screw fixation; surgical reduction was not attempted. All patients underwent plain anteroposterior and lateral lumbar radiography, flexion-extension lateral lumbar radiography, and computerized tomography and magnetic resonance imaging of the lumbar spine before and after surgery. Postoperative measurements were determined on the late (9 to 12-month) postoperative radiographs. The findings were recorded and grouped. Correlation analysis was performed among the radiological findings, body mass index, age, and sex. Paired-sample t-tests were performed for each paired group to determine statistically significant differences. There was no significant difference in extent of deformity reduction in patients with different lordotic angles, sagittal-plane rotation angles, and intervertebral disc heights. The extent of reduction was statistically significant at the L4-5 level (p < 0.05), in patients younger than 50 years of age (p < 0.05), and in those in whom the facet joint angle was increased (p < 0.05). CONCLUSIONS: The authors found that in cases of low-grade LSS, short-segment posterior stabilization (in situ fusion and fixation) does not require surgical reduction and in fact is associated with a measurable reduction when used as the sole treatment.

Adult↗
PubMed2003

[Prof. Dr. Mim Kemal Oke (1884-1955)and neurosurgery].

Neurosurgery started in our country in the decade of 20th century. However, several neurosurgical procedures were performed by other specialities. Dr. Mim Kemal Oke is among the surgeons who performed some neurosurgical procedures sporadically. In this study, the life, neurosurgical procedures and publications of Mim Kemal were reviewed.

History, 20th Century↗
PubMed2003

[An aspect of neurosurgery in Turkey: Dr. Abdülkadir Cahit Tuner (1892-1980)].

The knowledge regarding the history of different disciplines in medicine is of importance. As in each discipline, there are also some pioneers in neurosurgery. The name of Dr. Abdulkadir Cahit Tuner, is among the first pioneers in neurosurgery. As the first physician who went for training of neurosurgery, Dr Tuner made several cranial and spinal operations. In this manuscript, the life and the articles of Dr. Abdulkadir Cahit Tuner were reviewed.

History, 20th Century↗
PubMed2002

Simultaneous cervical and lumbar surgery for combined symptomatic cervical and lumbar spinal stenoses.

Spinal stenosis may rarely involve both cervical and lumbar spines. An alternative surgical strategy used for the treatment of combined cervical and lumbar spinal stenosis is presented. Two cases with symptomatic combined stenosis of the cervical and lumbar spinal canal are described. Simultaneous surgery was performed in both cases. The combined stenosis of the cervical and lumbar spinal canal dictates careful neurologic and neuroradiologic examinations. Simultaneous surgery is an alternative approach for patients with symptomatic multilevel spinal stenoses, whose general conditions necessitate a one-session and short-lasting surgery.

Aged↗
PubMed2002

History of spinal disorders and Cerrahiyetül Haniye (Imperial Surgery): a review of a Turkish treatise written by Serefeddin Sabuncuoğlu in the 15th century. Historical vignette.

The history of spinal surgery represents an important aspect of spine-related sciences. The development of the treatment strategies of spine-related disorders has predominantly been recorded in the Western literature. In this paper, a Turkish physician, Serefeddin Sabuncuoğlu (1385-1468), and his treatise, Cerrahiyetül Haniye (Imperial Surgery), are presented. Three sections of this book regarding spinal disorders (spinal dislocations, sciatica, and back pain) are reviewed. The techniques described were used by Sabuncuoğlu in the 1400s. In conclusion, the language and illustrations of this treatise are unique. Compared with current approaches, there are no major differences in the principles of treating spinal traumas despite the passage of almost 500 years.

History, 15th Century↗
PubMed1999

Biomechanical analysis of cranial settling after transoral odontoidectomy.

The authors conducted a biomechancial study to determine whether C-1 ring integrity is important in maintaining normal occiput-C-2 separation, specifically when the anterior arch is transected to provide access to the dens during an odontoidectomy procedure. Six human cadaveric occiput-C3 specimens were loaded under axial compression, and the bilateral horizontal separation of the C-1 lateral masses and the vertical compression of the occiput relative to C-2 were recorded. Specimens were first studied after odontoidectomy without C-1 ring transection, then after C-1 anterior arch transection, and finally after C-1 lamina transection. With applied compressive load corresponding to three times the weight of the head, the C-1 ring spread horizontally 1.57 +/- 0.30 mm more when the anterior arch of C-1 was transected than when left intact, resulting in 0.74 +/- 0.44 mm collapse in the occiput-C-2 vertical separation. After laminar transection, the C-1 ring spread 6.55 +/- 2.29 mm more than when it was intact. The resultant vertical separation was a 3.37 +/- 1.89-mm collapse in the occiput-C-2. All changes in C-1 spreading and the occiput-C-2 collapse were statistically significant (p < 0.05, paired Student's t-tests). The C-1 ring continuity prevents horizontal spreading caused by the wedging of C-1 between the occiput and C-2 and thus prevents cranial settling. Therefore, to prevent the subsequent development of disease related to cranial settling, the authors recommend that the surgeon resect part of C-1 only if necessary during odontoidectomy.

Journal Article↗