前路经枕寰枢关节螺钉内固定的临床解剖学研究

[目的]探讨前路经枕寰枢关节螺钉的临床应用解剖学依据。[方法]取30具国人干燥枕颈部标本,测量与经枕寰枢关节螺钉内固定术相关的解剖径线及钉道参数;并以此类数据为依据,在所测量的干燥标本上模拟行经枕寰枢关节螺钉内固定术,经X线摄片检查内固定位置并测量钉道实际角度。[结果]前路经枕寰枢关节螺钉内固定的钉道在矢状面上呈后倾,在冠状面上呈外倾。左右两侧钉道角度大小差异无统计学差异,理想外倾角为(18.15±3.70)°,理想后倾角为(24.20±4.91)°,理想钉道长度为(34.45±2.9)mm;模拟行内固定验证,术后影像学及直视下检查结果显示,螺钉钉道均经过枕寰枢关节,角度均在此范围内,无穿出骨质者。[结论]采用前路经枕寰枢关节螺钉行枕颈融合内固定在解剖上是可行的。     

经椎板间孔入路间断内窥镜下治疗L5、S1椎间盘突出症疗效分析

目的探讨经椎板间孔入路间断内窥镜下治疗L5、S1椎间盘突出症的临床效果。方法 2006年11月-2010年8月,收治L5、S1椎间盘突出症115例,其中男79例,女36例;年龄14～79岁,平均38岁。病程2～15个月,平均8.3个月。均表现为S1神经根支配区症状。采用经椎板间孔入路穿刺,建立工作通道。穿刺针测试工作面无神经根或硬膜囊后,使用器械直接摘除椎间盘组织,然后在内窥镜下观察神经根减压情况;游离型的患者在内窥镜下观察神经根压迫情况,摘除神经根周围椎间盘组织,然后进入椎间隙摘除游离的椎间盘组织。结果术中4例穿刺失败,1例改为小开窗手术,3例改为后外斜入路手术;其余采用经椎板间孔入路间断内窥镜技术。术后80例获随访,随访时间12～36个月,平均18个月。术前Oswestry功能障碍指数(ODI)为73%±12%,术后12个月和末次随访时分别为13%±5%和12%±8%,与术前比较差异均有统计学意义(P<0.01);术后12个月和末次随访时比较差异无统计学意义(P>0.05)。末次随访时根据改良的Macnab疗效评定标准进行疗效评定,优59例,良15例,可3例,差3例,优良率92.5%。结论经椎板间孔入路间断内窥镜下治疗L5、S1椎间盘突出症能达到理想的治疗效果,具有手术时间短、创伤小、康复快的特点。     

Kidney transplantation from donation after cardiac death donors: lack of impact of delayed graft function on post‐transplant outcomes

Singh RP, Farney AC, Rogers J, Zuckerman J, Reeves‐Daniel A, Hartmann E, Iskandar S, Adams P, Stratta RJ. Kidney transplantation from donation after cardiac death donors: lack of impact of delayed graft function on post‐transplant outcomes.
Clin Transplant 2011: 25: 255–264. © 2010 John Wiley & Sons A/S. Abstract: Introduction: Delayed graft function (DGF) is more common in recipients of kidney transplants from donation after cardiac death (DCD) donors compared to donation after brain death (DBD) donors. Methods: Single‐center retrospective study to evaluate the impact of DGF on controlled (Maastricht category III) DCD donor kidney transplant outcomes. Results: From 10/01 to 6/08, 578 adult deceased donor kidney transplants were performed including 70 (12%) from DCD and 508 (88%) from DBD donors. Mean follow‐up was 36 months. DCD donor kidney transplants had significantly greater rates of DGF (57% DCD vs. 21% DBD, p < 0.0001)) and acute rejection (29% DCD vs. 16% DBD, p = 0.018) compared to DBD donor kidney transplants, but patient and graft survival rates were similar. DBD donor kidney transplants with DGF (n = 109) had significantly greater rates of death‐censored graft loss (12.5% DCD vs. 31% DBD), primary non‐function (0 DCD vs. 10% DBD) and higher 2 year mean serum creatinine levels (1.4 DCD vs. 2.7 mg/dL DBD) compared to DCD donor kidney transplants with DGF (n = 40, all p < 0.04). On univariate analysis, the presence of acute rejection and older donor age were the only significant risk factors for death‐censored graft loss in DCD donor kidney transplants, whereas DGF was not a risk factor. Conclusion: Despite higher rates of DGF and acute rejection in DCD donor kidney transplants, subsequent outcomes in DCD donor kidney transplants with DGF are better than in DBD donor kidney transplants experiencing DGF, and similar to outcomes in DCD donor kidney transplants without DGF.     

Machine perfusion versus cold storage for preservation of kidneys from expanded criteria donors after brain death

The purpose of this study was to analyze the possible effects of machine perfusion (MP) versus cold storage (CS) on delayed graft function (DGF) and early graft survival in expanded criteria donor kidneys (ECD). As part of the previously reported international randomized controlled trial 91 consecutive heart‐beating deceased ECDs – defined according to the United Network of Organ Sharing definition – were included in the study. From each donor one kidney was randomized to MP and the contralateral kidney to CS. All recipients were followed for 1 year. The primary endpoint was DGF. Secondary endpoints included primary nonfunction and graft survival. DGF occurred in 27 patients in the CS group (29.7%) and in 20 patients in the MP group (22%). Using the logistic regression model MP significantly reduced the risk of DGF compared with CS (OR 0.460, P = 0.047). The incidence of nonfunction in the CS group (12%) was four times higher than in the MP group (3%) (P = 0.04). One‐year graft survival was significantly higher in machine perfused kidneys compared with cold stored kidneys (92.3% vs. 80.2%, P = 0.02). In the present study, MP preservation clearly reduced the risk of DGF and improved 1‐year graft survival and function in ECD kidneys. (Current Controlled Trials number: ISRCTN83876362).     

Anterior endoscopically assisted transcervical reconstruction of the upper cervical spine

Anterior decompression and/or reconstruction can be an effective method for the surgical treatment of ventral spinal cord compression in the upper cervical spine. Options for traditional surgical approaches include transoral, transnasal, and extraoral. The risk and complex anatomy with the aforementioned approaches induces surgeons to use the transcervical route to expose the upper cervical spine. A traditional transcervical approach, however, carries the disadvantages of a deep operative field and steep trajectory. We performed a new endoscopically assisted method of anterior reconstruction for the treatment of ventral lesions in upper cervical spine. Six patients were treated from January 2005 to December 2007. Among those six patients, three patients were diagnosed with fixed atlantoaxial dislocations, two with plasmacytomas, and one with a giant cell tumor. All patients were treated by combined endoscopically assisted anterior reconstruction and posterior fusion. One patient with a fixed atlantoaxial dislocation sustained a cerebrospinal fluid leak in the immediate postoperative period, which spontaneously resolved 7 days after surgery. None of the patients had any neurologic deterioration following surgery, nor did any require admission to the intensive care unit for any reason. At the final follow-up, all patients were found to have evidence of a successful clinical outcomes and radiographic fusion. There were no implant failures or radiographic signs of implant migration or loosening. In conclusion, this study demonstrates that an anterior transcervical decompression using endoscopic visualization combined with a posterior arthodesis can achieve good clinical and radiographic outcomes.     

不同手术入路治疗腰椎结核疗效分析

目的比较不同手术入路治疗腰椎结核手术效果。方法手术治疗158例腰椎结核患者,分别采用侧前路入路手术病灶清除植骨钢板内固定59例（A组）、后路病灶清除减压内固定49例（B组）、前路减压病灶清除后路内固定50例（C组）。观察手术时间、出血量、截瘫缓解情况、植骨融合情况、后凸畸形矫正情况。结果平均手术时间：A组（170.5±18.3）min,B组（130.3±26.8）min,C组（208.5±18.3）min;平均出血量：A组（520.4±53）ml,B组（535.8±62）ml,C组（750.6±91）ml。组间比较差异有统计学意义（P〈0.05）。随访9-24个月。3组均无严重并发症发生,A组1例出现结核脓肿复发,窦道形成,经前路脓肿清除后治愈,1例术中损伤髂总静脉,行修补术。末次随访时所有植骨均获骨性融合,无内固定松动及断裂出现。3组的ASIA分级、Cobb角变化程度比较差异无统计学意义（P〉0.05）。结论一期侧前路病灶清除植骨融合内固定术治疗胸腰椎结核,后路病灶清除植骨融合内固定术以及前后路联合术式均可获得较好的治疗效果,但手术入路的选择应根据病灶侵蚀的范围、节段、患者的耐受能力以及手术者的习惯来决定。     

脊髓型颈椎病一期后前路减压术后疗效不佳原因分析

目的 观察采用一期后前路联合手术治疗脊髓型颈椎病的临床效果,分析部分病例疗效不佳的原因.方法 回顾性研究采用一期后前路联合手术治疗的脊髓型颈椎病67例,得到随访的55例,男38例,女17例;年龄32-74岁,平均52.0岁.比较手术前、术后随访时JOA评分,评价临床治疗效果,从年龄、病程、肌肉萎缩、术前JOA评分及MR...     

应用腹腔镜行下腰椎手术的解剖学研究

目的 观察研究下腰椎前方、侧方毗邻的血管结构的位置及走行,并测量各节段手术空间的大小,为腹腔镜下行腰椎手术提供安全区的解剖学依据.方法 解剖15例成人尸体标本(男9例,女6例),记录腰椎前方和侧方毗邻的主要血管解剖学参数,并测量出相应的结果.结果 腹主动脉分叉点变异较多,髂总静脉汇合点相对恒定,腹主动脉分叉点、髂总静脉...     

俯卧位背侧人路后腹腔镜肾囊肿去顶术的临床分析（附12例报告）

目的：探讨俯卧位经背侧人路后腹腔镜肾囊肿去顶术的方法和疗效。方法：回顾性分析俯卧位经背侧入路后腹腔镜肾囊肿去顶术治疗12例单纯性肾囊肿患者的临床资料。其中男7例,女5例,年龄为31～67岁,平均42．6岁。术前均行泌尿系B超、静脉尿路造影（IVu）和肾脏CT平扫及增强检查明确囊肿大小、数量及位置,证实与肾盂集合系统不相通。囊肿直径4．5～12．0cm,平均7．6cm。结果：12例患者均在后腹腔镜下顺利完成手术。手术时间30～105min,平均48．5min;术中出血量5～25ml,平均14．2ml;术后住院时间3～6天,平均4．8天。围手术期未出现并发症。随访12~20个月,平均15．3个月,未见囊肿复发。结论：俯卧位背侧入路后腹腔镜肾囊肿去顶术治疗单纯性肾囊肿安全可行。经背侧入路后腹腔镜手术的成功实施为临床手术路径的研究提供一种新的思路。     

小骨窗显微手术切除大型桥小脑角肿瘤及神经功能保护

目的探讨大型（直径≥3cm）桥小脑角肿瘤的小骨窗显微手术切除方法及神经功能保护。方法回顾性分析经乙状窦后入路小骨窗显微手术切除的32例大型桥小脑角肿瘤患者的临床资料,肿瘤全切除28例（87．5％）,次全切除4例（12．5％）。结果本组无手术死亡病例。面神经解剖保留率为93．8％（30／32）,面神经功能（House—BrackmannI、Ⅱ级）保留率为78．1％（25／32）,听神经解剖保留率为87．5％（28／32）,听力保留率68．8％（22／32）。结论采用乙状窦后入路小骨窗显微手术切除大型桥小脑角肿瘤是一种安全、有效的手术方法,在保留神经功能完整性的前提下应尽量切除肿瘤。