A morphometric study of the lumbar spinous process in the Chinese population

Our goal was to analyze the anatomical parameters of the lumbar spine spinous process for an interspinous stabilization device designed for the Chinese population and to offer an anatomical basis for its clinical application. The posterior lumbar spines (T₁₂-S₁) of 52 adult cadavers were used for measuring the following: distance between two adjacent spinous processes (DB), distance across two adjacent spinous processes (DA), thickness of the central spinous processes (TC), thickness of the superior margin of the spinous processes (TS), thickness of the inferior margin of the spinous processes (TI), and height of the spinous processes (H). Variance and correlation analyses were conducted for these data, and the data met the normal distribution and homogeneity of variance. DB decreased gradually from L_1-2 to L₅-S₁. DA increased from T₁₂-L₁ to L_2-3 and then decreased from L_2-3 to L_4-5. The largest H in males was noted at L₃ (25.45±5.96 mm), whereas for females the largest H was noted at L₄ (18.71±4.50 mm). Usually, TS of the adjacent spinous process was lower than TI. Based on the anatomical parameters of the lumbar spinous processes obtained in this study, an “H”-shaped coronal plane (posterior view) was proposed as an interspinous stabilization device for the Chinese population. This study reports morphometric data of the lumbar spinous processes in the Chinese population, which provides an anatomical basis for future clinical applications.     

应用PASO标准评估两种手术方式治疗单侧醛固酮瘤疗效的对比研究

目的 通过应用原发性醛固酮增多症手术结局(PASO)标准比较肾上腺全切与部分切除术治疗单侧醛固酮瘤的疗效,为单侧醛固酮瘤的手术方式选择提供依据.方法 回顾性分析2013年1月至2020年3月该院泌尿外科收治的245例单侧醛固酮瘤患者的临床资料,其中行后腹腔镜肾上腺全切术(TA)124例(50.6％,TA组),行后腹腔镜肾上腺部分切除术(PA)121例(49.4％,PA组).术后随访6～72个月,中位24个月.比较两组患者基本特征、手术资料、围术期并发症、术后激素补充和术后随访结果.结果 245例患者手术均获成功,无中转开放手术患者.两组患者手术时间、术中出血量、24 h血红蛋白下降值、围术期输血率、术后临床指标、术后住院时间、术后激素补充百分比比较,差异均无统计学意义(P>0.05).TA组患者中多发瘤15例(12.1％);肾上腺静脉取血诊断准确率为89.4％,CT诊断准确率为76.4％.依据PASO标准,TA组患者总体临床缓解率(完全缓解、部分缓解,97.6％)、总体生化缓解率(99.2％)与PA组(分别为94.2％、99.2％)比较,差异均无统计学意义(P>0.05).TA组患者复发率(0)低于PA组(2.5％),但差异无统计学意义(P>0.05).结论 单侧TA可能是单侧醛固酮瘤更有效的手术方式.     

绝经后妇女骨密度和血清骨转换指标与骨桥蛋白水平的相关性研究

目的探讨绝经后妇女循环骨桥蛋白(OPN)水平与骨转换和骨密度(BMD)之间的关系。方法 2015年7月至2017年8月,共有287名绝经后妇女纳入本研究。分析血清OPN水平,核因子κB(NF-κB)配体受体激活剂(RANKL)和骨转换标志物。采用双能X线吸收仪测定BMD。结果根据世界卫生组织(WHO)标准,102名受试者(35.5%)被诊断为骨质疏松症,125名(43.6%)骨质减少,60名(20.9%)正常骨密度。骨质疏松组的OPN水平显著高于骨量减少组和正常组(均为P0.001)。OPN诊断绝经后骨质疏松症的临界值为10.2 ng/mL,敏感性为90.1%,特异性为56.8%,曲线下面积为0.949。血清OPN和骨质疏松症组中甲状旁腺激素(PTH),腰椎BMD和股骨颈骨密度呈负相关,与I型前胶原氨基端前肽(PINP),I型的羧基端交联端肽胶原(CTX)和RANKL呈正相关。在多元回归分析中,腰椎骨密度,PTH和RANKL可以作为血清OPN水平的预测指标。结论 OPN血清水平与BMD呈负相关,与中国绝经后妇女骨转换水平呈正相关。