ObjectiveTo determine the entry point and screw implant technique in posterior pedicle screw fixation by anatomical measurement of adult dry samples of the axis so as to provide a accurate anatomic foundation for clinical application. MethodsA total of 60 dry adult axis specimens were selected for pedicle screws fixation. The entry point was 1-2 mm lateral to the crossing point of two lines: a vertical line through the midpoint of distance from the junction of pedicle medial and lateral border to lateral mass, and a horizontal line through the junction between the lateral border of inferior articular process and the posterior branch of transverse process. The pedicle screw was inserted at the entry point. The measurement of the anatomic parameters included the height and width of pedicle, the maximum length of the screw path, the minimum distance from screw path to spinal canal and transverse foramen, and the angle of pedicle screw. The data above were provided to determine the surgical feasibility and screw safety. ResultsThe width of upper, middle, and lower parts of the pedicle was (7.35±0.89), (5.50±1.48), and (3.97±1.01) mm respectively. The pedicle height was (9.94±1.16) mm and maximum length of the screw path was (25.91±1.15) mm. The angle between pedicle screw and coronal plane was (26.95±1.88)° and the angle between pedicle screw and transverse plane was (22.81±1.61)°. The minimum distance from screw path to spinal canal and transverse foramen was (2.72±0.83) mm and (1.98±0.26) mm respectively. ConclusionAccording to the anatomic research, a safe entry point for C2 pedicle screw fixation is determined according to the midpoint of distance from the junction of pedicle medial and lateral border to lateral mass, as well as the junction between the lateral border of inferior articular process and the posterior branch of transverse process, which is confirmed to be effectively and safely performed using the entry point and screw angle of the present study.
目的 通过对二腹肌后腹大体和显微解剖，观察二腹肌后腹的位置与毗邻关系，为临床治疗提供依据。 方法 2011年2月－2012年6月，对10具20侧成人尸体标本作解剖学研究，观察二腹肌后腹与周围相邻组织结构的位置。 结果 二腹肌后腹位置恒定，其深面有重要的神经血管。依次有寰椎横突、颈内静脉、枕动脉、副神经、颈外动脉、面动脉、舌下神经及耳后动脉等重要结构。 结论 掌握二腹肌后腹的外科解剖特点，在进行颌面外科手术时，可以避免损伤有关神经和血管等重要结构，具有重要的临床指导意义。
目的:探讨股骨髁解剖钢板、L钢板及DCS在治疗股骨远端骨折中的应用价值。方法:采用股骨髁解剖钢板内固定治疗股骨远端骨折26例,L钢板内固定治疗股骨远端骨折32例, DCS内固定治疗股骨远端骨折21例。结果:79例经3～15月随访,其中采用解剖钢板26例中23例疗效满意,优良率为885％。采用L钢板32例中23例疗效满意,优良率为719％采用DCS 21例中17例疗效满意,优良率为809％。结论:解剖钢板内固定是治疗股骨远端骨折较为有效的方法,是预防膝关节并发症的积极措施。
目的:探讨股骨近端解剖型钢板治疗股骨粗隆间骨折的临床疗效。方法:自2005年1月至2009年1月,采用切开复位,股骨近端解剖型钢板治疗股骨粗隆间骨折46 例。结果: 术后随访6个月～3年,平均18个月,所有病例均在术后3～55个月获得骨性愈合,髋关节功能根据Harris评分标准进行评定,优32 例,良4 例。结论: 股骨近端解剖型钢板适用于治疗大多数类型的股骨粗隆间骨折,能达到良好的骨折复位和坚强的固定,促进关节早期功能锻炼,骨折愈合率高,是治疗股骨粗隆间骨折的理想选择。
Objective To explore the significance of parathyroid micro vascular anatomy in thyroid lobectomy with capsular technique. Methods The pertinent literatures in recent thirty years were screened with key words “parathyroid micro vascular anatomy， capsular technique， and protection”and reviewed. Results There were many types of number， origin， and length of parathyroid vascular， and specific measurements should be taken in thyroid lobectomy with capsular technique. Conclusion Fully awareness of parathyroid micro vascular anatomy will benefit to ensure preservation of their function during thyroid lobectomy with capsular technique.
ObjectiveTo explore the curative effect of precise hepatectomy techniques in hepatolithus. MethodsTotally 132 patients underwent precise hepatectomy and 52 patients underwent irregular hepatectomy were retrospectively analyzed, and the intraoperative and postoperative indexes such as operation time, blood loss, postoperative complications, hospitalization time, clearance rate of calculus, and cost of hospitalization were analyzed. ResultsCompared with the patients in irregular hepatectomy group, although the operative time was longer in precise hepatectomy group 〔(364.6±57.8) min vs. (292.9±44.7) min, Plt;0.001〕, but the patients in precise hepatectomy group had less blood loss 〔(558.3±90.6) ml vs. (726.7±88.7) ml, Plt;0.001〕, less postoperative complications (11.4% vs. 23.1%，P=0.004 3), and higher clearance rate of calculus (89.4% vs. 73.1%, P=0.005 5). Thus, the patients in precise hepatectomy group had shorter hospital stay 〔(22.9±4.4) d vs. (28.8±3.5) d, Plt;0.001〕 and less cost of hospitalization 〔(1.8±0.7)×104 yuan vs. (2.1±0.9)×104 yuan, P=0.016 5〕. Conclusion Precise hepatectomy is better than irregular hepatectomy in treatment for hepatolithus.
Objective To report the authors’ own experience and results of recent studies of anatomical liver resection for patients with hepatocellular carcinoma (HCC). Methods From January 2004 to June 2005, anatomical liver resection procedure were completed in 93 patients with HCC. Surgical techniques were designed to reduce intraoperative blood loss, blood transfusion and postoperative complications by parenchymal crushing with kelly forceps, inflow and outflow selective clamping. In 13 patients with large liver tumors, liver hanging maneuver performed in the course of hemihepatectomy. Liver transection with intermittent closure of the blood influx to the liver, using a Pringle manoeuvre. Results Of 93 patients undergoing hepatectomy for HCC, underlying cirrhosis was present in 82 (88%) patients. The median blood loss was 300 ml (100－6 000 ml) and 71%（66/93） of the patients did not require blood transfusion.The postoperative complication rate was 34%（32/93）, complications were primarily subphrenic collection (8 cases). Within 30 postoperative days, no death was recorded. Conclusion The anatomical liver resection of HCC may be improve the surgical outcome.
【Abstract】Objective To study the anatomy of the hepatic arteries and imitate the way to deal with the hepatic arteries in the living liver transplantation of the left lateral lobe.Methods Thirty normal adult livers were anatomyzed and 30 casting models of livers were observed. The lengths, diameters and distributaries of the hepatic arteries were described.Results The blood supply of the left lateral region came from proper hepatic artery, left hepatic artery and middle hepatic artery. The aberrant arteries included left inferior phrenic artery, left gastric artery and right gastric artery. They branched to supply the upper segment and the inferior segment.Conclusion There are five types of hepatic arteries to supply the left liver lobe. The anatomy of hepatic arteries should be studied and a reasonable approach to gain a liver graft should be designed before transplantation. The hepatic arteries should be dealt with so as to anastomose with recipient hepatic arteries.
凡是涉及一个脏器基本结构的研究，不论是大体的、显微镜的、分子的、基因水平或功能状态的研究，都属于临床外科中的基础研究范畴。解剖学研究虽然是外科临床基础研究中最古老的项目，但是随着新科技和临床外科学的发展，又从未间断地添加新的研究内容。例如当前的可视化人体的研究便是个突出的例子。肝、胆管血循环的研究在当代的胆道外科学和移植外科学中占有重要的位置, 而上世纪50年代初期的肝内管道解剖学研究，奠定了现代肝脏外科的基础。
ObjectiveTo investigate the CT presenting rate and features of gastric bare area (GBA, including the area posterior to GBA and the adipose tissue in the gastrophrenic ligament) without pathologic changes.MethodsThirty cases with superior peritoneal ascites, but without pathological involvement of GBA were included into the study to show the normal condition of GBA, including the presenting rate and CT features. We selected some cases with GBA invasion by inflammation or neoplasm to observe their CT features. ResultsAll cases with superior peritoneal ascites showed the GBA against the contrast of ascites with the presenting rate of 100%. The GBA appeared at the level of gastricesophageal conjunction and completely disappeared at the level of hepatoduodenal ligament and Winslow’s foramen. The maximum scope of GBA presented at the level of the sagital part of the left portal vein with mean right to left distance of （4.39±0.08）cm (3.8~5.7 cm) (distance between the left and right layer of the gastrophrenic ligament). In acute pancreatitis, the width of GBA increased, in which local hypodensity area could be seen. In gastric leiomyosarcoma invading GBA, the mass could not separate from the crus of the diaphragm. In lymphoma and metastasis invading GBA, the thickness of GBA increased and the density was heterogeneous, in which lymph nodes presenting as small nodes or fused mass. ConclusionThe results of this study show that it is helpful to use contrast enhanced spiral CT scanning to observe the change of GBA and to diagnose retroperitoneal abnormalities that involving GBA comprehensively and accurately.