Myelopathy Caused by Chronic Epidural Hematoma Associated with L1 Osteoporotic Vertebral Collapse: A Case Report and Review of the Literature

Epidural hematoma associated with osteoporotic vertebral collapse has not been reported yet in the literature. We report a case of myelopathy caused by chronic epidural hematoma associated with L1 osteoporotic vertebral collapse and review the relevant literature

A Study on Dialect Program and Its Policy in Chongqing City and Sichuan Province, the People’s Republic of China（1）

application/pdf本稿は，中華人民共和国の重慶市及び四川省における漢語方言を使用したラジオ・テレビ番組（方言番組）をめぐる政策を考察するものである。この隣接する2 つの行政区は，1990年代以前から方言によるテレビドラマが放送されてきた歴史を有し，2000年代の方言番組ブームを牽引してきた地域である。今号においては，こうした当該地域の特徴を踏まえ，最初に同国におけるテレビドラマの制作・放送に関する制度を概観し，次に関係法令や行政文書の確認を行うとともに，従前のラジオ放送における方言の使用状況を記述した。departmental bulletin pape

Biomechanical study on the effect of five different lumbar reconstruction techniques on adjacent-level intradiscal pressure and lamina strain.

OBJECT: The objectives of this study were to compare the biomechanical effects of five lumbar reconstruction models on the adjacent segment and to analyze the effects of three factors: construct stiffness, sagittal alignment, and the number of fused segments. METHODS: Nondestructive flexion-extension tests were performed by applying pure moments to 10 calf spinal (L3-S1) specimens. One-segment (L5-6) or two-segment (L5-S1) posterior fusion methods were simulated: 1) one-segment posterolateral fusion (PLF); 2) one-segment PLF with interbody fusion cages (one-segment PLIF/PLF); 3) two-segment PLF; 4) two-segment PLIF/PLF; and 5) two-segment PLF in kyphosis (two-segment kyphotic PLF). The range of motion (ROM) of the reconstructed segments, intradiscal pressure (IDP), and lamina strain in the upper (L4-5) adjacent segment were analyzed. The ROM was significantly decreased in the PLIF/PLF models compared with that in the PLF alone models after both the one- and two-segment fusions. If the number of fused segments was increased, the pressure and strains were also increased in specimens subjected to the PLIF/PLF procedure, more so than the PLF-alone procedure. In the one-segment PLIF/PLF model the authors observed a reduced IDP and lamina strain compared with those in the kyphotic two-segment PLF model despite the latter's higher levels of initial stiffness. CONCLUSIONS: If the number of fused levels can be reduced by using PLIF to correct local kyphosis, then this procedure may be valuable for reducing adjacent-segment degenerative changes

中華人民共和国重慶市及び四川省における方言番組をめぐる政策について（1）

application/pdf本稿は，中華人民共和国の重慶市及び四川省における漢語方言を使用したラジオ・テレビ番組（方言番組）をめぐる政策を考察するものである。この隣接する2 つの行政区は，1990年代以前から方言によるテレビドラマが放送されてきた歴史を有し，2000年代の方言番組ブームを牽引してきた地域である。今号においては，こうした当該地域の特徴を踏まえ，最初に同国におけるテレビドラマの制作・放送に関する制度を概観し，次に関係法令や行政文書の確認を行うとともに，従前のラジオ放送における方言の使用状況を記述した

Association Between Vitamin A Intake and Disease Severity in Early-Onset Heterotopic Ossification of the Posterior Longitudinal Ligament of the Spine

Study Design: A sex- and age-matched case-control study and a cross-sectional study. Objective: In our previous study, patients with early-onset (= 50 years, n = 62). In Study 2, serological validation was conducted for thoracic OPLL patients (n = 77) and non-OPLL controls (n = 101) in a nationwide multicenter study in Japan. Results: The BDHQ showed that the early-onset OPLL patients had significantly lower intakes of vitamins A and B6 than non-OPLL controls. These results were validated by lower serum vitamins A and B6 levels in the early-onset thoracic OPLL patients. The severity of OPLL negatively correlated with serum vitamin A levels in male early-onset OPLL patients. The multiple regression analysis revealed that the severity of thoracic OPLL had an association with onset age and serum vitamin A level. Conclusions: Vitamin A deficiency resulting from unbalanced dietary habits is associated with exacerbation of male early-onset OPLL