Browsing by Author "Altinors, Mehmet Nur"

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A New Technique in Surgical Management of the Giant Cerebral Hydatid Cysts
(2018) Aydin, Mehmet Dumlu; Karaavci, Nuh Cagri; Akyuz, Mehmet Emin; Sahin, Mehmet Hakan; Zeynal, Mete; Kanat, Ayhan; Altinors, Mehmet Nur; 29381627
Objectives:In hydatid disease, the central nervous system is affected approximately in 2% to 3% of patients. Surgical management in these patients is important. To develop a surgical technique to avoid the formation of great volume of cavity after hydatid cyst removal and prevent complications associated with brain collapse and cortical convolution.Patients and Methods:In 2 patients, hydatid cysts were delivered by this new technique. A balloon filled with 150 cc of sterile air/distilled water was placed in the cavity until the balloon filled the entire cavity. Air/distilled water evacuation was continued at a rate of 20cc/d and, after a week, eventually, the balloons were removedResults:All cysts were delivered without rupture. Neurologic outcomes were good. No complications were observed related to usage of the system such as balloon rupture, evacuation problems, and infection.Conclusion:The authors believe that the balloon insertion technique may be a useful method to prevent brain collapse, cortical convolution, and complications associated with this condition. Further technical refinements of the system are needed for better results.
The Relationship of the Vertebral Artery with Anatomical Landmarks in the Posterior Craniovertebral Junction of Fresh Human Cadavers in the Turkish Population
(2016) Akar, Aykan; Civelek, Erdinc; Cansever, Tufan; Aydemir, Fatih; Altinors, Mehmet Nur; 27161466
AIM: Surgical anatomy concerning the posterior craniovertebral region in fresh human cadavers was studied to provide most accurate information for the surgical approach. MATERIAL and METHODS: In thirty-two fresh human cadavers, the distance from the posterior tubercle to the sulcus of vertebral artery (VA), the thickness and length of the third segment of VA (V3), the distance of C1/C2 facet to V3, the length, height and shape of the C2 ganglion to the neighboring structures, the distance from medial border of C1 lateral mass to dura mater, the distance of the transverse process of atlas to mastoid tip, the thickness of C1 posterior arcus were measured. RESULTS: There were variations of sulcus of VA in 14 of 32 cadavers (43.7%), the right VA was larger in 23 cadavers (71.8%). The ganglion was found over the C1 lateral mass screw entry point in 45 of 64 ganglions (70.31%) and below the screw entry point in 19 of 64 ganglions (29.69%). The distance of the medial border of the C1 lateral mass to dural tube was 3.81 +/- 0.55 mm at the right side and 3.91 +/- 0.59 mm at the left. The thickness of C1 posterior arch was 3.73 +/- 0.75 mm at the right side and 3.75 +/- 0.77 mm at the left. The mean distance from the transverse process of C1 to the mastoid tip was 15.82 +/- 4.49 mm at the right side and 15.46 +/- 4.38 mm at the left. CONCLUSION: This is the most comprehensive and only fresh cadaver study about this region in the literature.
Stereotaxic Biopsy Experience
(2020) Dere, Umit Akin; Sahinturk, Fikret; Sonmez, Erkin; Gulsen, Salih; Yilmaz, Cem; Altinors, Mehmet Nur
Aim: To review the outcomes and complications of stereotactic biopsy procedures performed at Neurosurgery Department of Baskent University and make an overall evaluation of the stereotactic biopsy system. Materials and Methods: Medical files of 151 patients who underwent stereotaxic biopsy procedure between 1996 and 2018 were retrospectively analyzed.The , age and gender of the patients, intracranial localization of the lesion and histopathologic diagnosis were evaluated. Result: The series included 84(55.6%) males and 67 (44.4%) females. The average age was 47.7 and the age spectrum was between 26-84 years of age. In 102 cases (67.55%) lesions had lobar localization and in 42 lesions (27.82%) the pathology was deep seated lesion. In 7(4.6 %) there were multiple lesions. A histopathologic diagnosis was obtained in 125 (82.79 %) cases. In 16 (%10.59 %) it was reported as brain tissue and in 10 cases (6.62 %) the histopathologic diagnosis was gliosis. A second stereotactic bipsy procedure was performed in 8 cases while in one patient a third biopsy became necessary. Thirteen patients underwent craniotomy and tumor excision as further therapy. Conclusion: Stereotactic biopsy sampling of intracranial space occupying lesions is a safe, simple and highly diagnostic method. In some cases it may contribute to further therapy. The problems encountered are inconclusive diagnosis, inadequate representation of the specimen due to its limited nature and some technical difficulties.
Vertebroplasty in Vertebral Compression Fractures: Single Institute Experience with 49 Cases
(2017) Altınel, Faruk; Soylev, Gozde Ozcan; Tuncali, Bahattin; Altinors, Mehmet Nur; 0000-0002-7898-2943; 0000-0001-8742-5543; 0000-0002-8326-3900; AAJ-7840-2021; AAJ-4917-2021; AAJ-5382-2021
Objective: Percutaneous vertebroplasty (PVP) is the preferred treatment option for vertebral compression fractures (VCF). In this study, the efficacy and complications of PVP were investigated among 49 patients with VCF. Methods: Forty-nine patients with VCF due to osteoporosis, trauma, osteolytic bone tumors, metastases or leukemia who were admitted to our hospital between 2012 and 2015 and treated with PVP were included in the study. In patients' preoperative and postoperative evaluation, a visual analogue scale (VAS) was used to assess back and leg pain, preoperative routine lumbar vertebral radiography was used for fracture morphology, lumbar magnetic resonance imaging was performed, and the segmental kyphotic angle, vertebral corpus compression rate, polymethylmethacrylate (PMMA) cement volume, and diffusion of PMMA were recorded. Results: Preoperative and postoperative VAS scores were 8.6 +/- 0.9 vs. 1.13 +/- 1.1 (p < 0.01). The approximate compression rate was 24.72 +/- 13.99 %, the ratio of approximate restoration height was 3.47 +/- 5.36, and the mean kyphosis angle was 7.35 +/- 6.81 degrees. The mean pre- and postoperative values of vertebral height were 1.83 +/- 0.39 cm vs1.88 +/- 0.36 cm (P <.01). Conclusion: In this study, preoperative pain in patients with VCF prominently diminished in the postoperative early and late phase. After PVP, vertebral height showed a subtle increase.