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AIm: A unilateral subfrontal interhemispheric transfalcial approach for the removal of olfactory groove meningiomas (OGM) was evaluated in terms of surgical technique, complications, clinical outcomes, and recurrence rate. mAterIAl and methOds: Twenty-four females and eighteen males with a mean age of 59 years were operated on for OGM within a 12-year (1996-2008) period. The pre-and post-operative Mini-Mental Test (MMT) scores, visual impairment scores (VIS), pre-operative clinical symptoms (headache, epileptic seizure and anosmia), Karnofsky performance scores (KPS), tumor size and tumor extensions were evaluated. The effects of the pre-operative parameters on post-operative MMT, VIS and KPS were investigated. results:Tumor size and pre-operative MMT significantly affected pre-operative KPS. Mean tumor diameter was 5.6±0.8 cm. Total excision was achieved in 97.6% of all cases. No peri-operative mortality was seen. Ten patients (23.8%) experienced surgery-related complications. The mean follow-up period of cases was 52 months, and the rate of residual tumor re-growth was 2.3%. No parameter showed any effect on post-operative KPS, as no significant difference was seen between pre-and post-operative KPS. A significant positive difference was detected between pre-and post-operative MMT and VIS.COnClusIOn: A unilateral subfrontal interhemispheric transfalcial approach can be the preferred modality for treating OGM. BulGulAr: Tümör boyutu ve ameliyat öncesi MMT ameliyat öncesi KPS nu anlamlı etkiledi. Ortalama tümör çapı 5.6 ± 0.8 cm idi. Total eksizyon olguların % 97.6 sında sağlandı. Peri-operatif mortalite görülmedi. On hastada (% 23.8) cerrahiye bağlı istenmeyen durum meydana geldi. Olguların ortalama takip süresi 52 aydı, nüks oranı% 2.3 idi. Ameliyat öncesi ve sonrası KPS arasında anlamlı bir fark görülmedi. Hiçbir parametre, post-operatif KPS üzerine anlamlı bir etki göstermedi. Anlamlı pozitif fark ameliyat öncesi ve sonrası MMT ve VIS arasında tespit edildi.sOnuÇ: Tek taraflı subfrontal interhemisferik transfalcian yaklaşım OOM tedavisi için tercih edilebilecek yöntem olabilir.

of Transforaminal Epidural Steroid Injection in Lumbar Spinal StenosisO ne of the degenerative pathologies of the lumbar spine is lumbar spinal stenosis (LSS) and it is a common cause of radicular pain. [1][2][3] The pathology appears as foramen, lateral recess and central stenosis on lumbar magnetic resonance image (MRI). The morphologic classification of LSS on lumbar MRI has been described by measuring the dural sac cross-sectional surface area in the literature. [4] The severe and extreme stenosis is treated with surgery generally and minor or moderate stenosis is treated conservatively. The complaints of patients are low back pain or bilaterally leg pain in a few patients. According to our clinical experience, especially in the foramen and lateral recess ste-Objectives: Transforaminal epidural steroid injection reduces the low back-leg pain and enables daily activities of the patients. In this study, we aim to evaluate the treatment of transforaminal epidural steroid injection for lumbar spinal stenosis, which was mainly performed for lumbar disc herniation and share our diagnostic experience for lumbar spinal stenosis which is treated surgically. Methods: In our study, 37 patients were included who were treated by transforaminal epidural steroid injection for Grade B lumbar spinal stenosis in our clinic between June-2014 and June-2018. We evaluated the patients at the second weeks, third/sixth months and one year after the treatment by Oswestry-Disability-Index and Visual-Analogue-Scale and followed up for surgical treatment after one year. Results: The mean low back and leg pain Visual Analogue Scale was 5.1±0.3 before the transforaminal epidural steroid injection procedure, and it was 2.7±0.1 after two weeks. It was 2.8±0.2, 3.1±0.1 at three and six months after procedure, respectively. The improvement of low back-leg pain mean Visual-Analogue-Scale is statistically significant at two weeks, three and six months after transforaminal epidural steroid injection procedure, respectively. The mean Oswestry-Disability-Index was 29.6±0.4 before the transforaminal epidural steroid injection procedure, and it was 14.1±0.3 after two weeks. It was 15.3±0.5, 24.4±0.2 at three and six months after procedure, respectively. The improvement of Oswestry-Disability-Index is statistically significant at two weeks, three-six months. Conclusion:The transforaminal epidural steroid injection is safe procedure for non-surgical treatment of lumbar spinal stenosis and this procedure may be preferred support to the indication of the surgical treatment of level of lumbar spinal stenosis.

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