03). The UIATS model had low sensitivity in the elderly compared with younger patients 63% (59 of 136) of younger patients would have been recommended aneurysm repair had their aneurysm been detected unruptured, compared with only 12% (5 of 42) of elderly patients >65 years (P < 0.01). Elderly patients >65 years in age have far worse outcomes after SAH. The sensitivity of the UIATS model for detecting those at risk of SAH was significantly lower in elderly patients. The UIATS model may lead to undertreatment of elderly patients at risk of SAH. 65 years in age have far worse outcomes after SAH. The sensitivity of the UIATS model for detecting those at risk of SAH was significantly lower in elderly patients. The UIATS model may lead to undertreatment of elderly patients at risk of SAH.The aim of this study is to investigate the knowledge on head wounds contained in the Kitāb al-'Umda fī Ṣinā'a al-Jirāḥa, written by Ibn al-Quff in the thirteenth century. This study was based on a copy of the Kitāb al-'Umda fī Ṣinā'a al-Jirāḥa, printed in 2 volumes in Dā'ira al-Mā'ārif al-Uthmāniyya in Hyderabad in 1356/1937-38 and reprinted by the Institute for the History of Arabic-Islamic Science at the Johann Wolfgang Goethe University. This printed copy was compared with the manuscript of İstanbul University Rare Works Library, Arabic Manuscripts, A 4749. Relevant chapters were translated from Arabic to English, after which they were thoroughly examined. Obtained knowledge is presented in the Results section and is compared in the Discussion section with other reports of this subject. The first chapter classified head wounds into 6 types the first 3 types are conservatively treated and the remaining 3 types are surgically treated. This chapter also presents information on how to proceed when there is a head wound-related hemorrhage, which medications should be used, and which are the adequate treatment protocols. The second chapter discusses the symptoms and signs that follow head blow and fall injuries. The characteristics and noteworthy circumstances of skull fractures as well as the surgical treatment methods are included in the fifteenth chapter, which is concluded with surgery-related complications. The present study shows that Ibn al-Quff benefited from his predecessors' knowledge and made some considerable contributions to this subject. To identify radiological factors and functional outcomes associated with good results after implantation of a single lumbar disc prosthesis or a hybrid construct (anterior lumbar interbody fusion and lumbar disc prosthesis) in the setting of painful degenerative lumbar discopathy. This single-center, retrospective 10-year study included 92 patients ˃18 years old with chronic low back pain evolving for at least 1 year. The patients had degenerative disc disease and had failed conservative treatment and underwent lumbar arthroplasty. Radiographic and clinical outcomes were assessed preoperatively and 1 year after surgery. Functional evaluation was based on the Oswestry Disability Index (ODI) and a numerical rating scale. Radiological analysis was based on lumbar x-rays and magnetic resonance imaging parameters. Patients were assigned to 2 groups according to the reduction in ODI score (>15 points or <15 points), and statistical analysis was done in both groups to find predictive radiological factors for a satisfactory functional outcome. Clinically, 60 patients (65.2%) had a satisfactory functional result and 32 patients (34.8%) had a poor outcome according to ODI score. Radiographically, gain in segmental lordosis was statistically associated with good functional outcomes (8.9° for ODI decrease >15 vs. 3.2° for ODI decrease <15). This study determined that gain in segmental lordosis is associated with a satisfactory functional outcome after a single-level lumbar disc prosthesis or a hybrid construct. Our study demonstrates that segmental lordosis gain may represent a significative useful positive predictor factor of patient outcome. This study determined that gain in segmental lordosis is associated with a satisfactory functional outcome after a single-level lumbar disc prosthesis or a hybrid construct. Our study demonstrates that segmental lordosis gain may represent a significative useful positive predictor factor of patient outcome. Lumbar spinal stenosis (LSS) is a common disease in spinal surgery. Many related treatment methods have been reported, but their effectiveness still lacks a systematic comparison. https://www.selleckchem.com/products/U0126.html We aimed to evaluate the clinical outcomes related to the efficacy and safety of these treatment strategies via a network meta-analysis. Relevant clinical studies were retrieved from the databases of PubMed, Embase, Web of Science, and Cochrane library updated to July 29, 2020. The data were extracted from the eligible literature and the results were presented as standardized mean differences with 95% confidence intervals (CIs). A network meta-analysis was executed using the netmeta, rjags, and gemtc packages in R software, and Begg and Egger tests were used to assess the publication bias within the included studies. A total of 21 eligible studies based on 2890 patients with degenerative LSS were included. The newer microdecompression technique (bilateral decompression via unilateral laminotomy [BDUL]) performed better in decreasing the visual analog scale (VAS) score compared with conventional decompressive laminectomy (VAS score back pain, 1.22; 95% CI, 0.28-2.17; VAS score leg pain, 1.39; 95% CI, 0.82-1.96), but its Oswestry Disability Index improvement was slightly inferior to that of posterolateral fusion. BDUL could effectively alleviate VAS pain of patients, and had a lower incidence of complications. Although BDUL was slightly inferior to posterolateral fusion in terms of Oswestry Disability Index improvement, the postoperative quality of life of patients treated with BDUL had been significantly improved compared with that before surgery. BDUL could effectively alleviate VAS pain of patients, and had a lower incidence of complications. Although BDUL was slightly inferior to posterolateral fusion in terms of Oswestry Disability Index improvement, the postoperative quality of life of patients treated with BDUL had been significantly improved compared with that before surgery.