Various tissue flaps are currently used to repair the defect and injury of bone and joint. In this paper, based upon a series of anatomical studied, the author presents anatomical guidelines and principles for the selection of vaseularized bone flaps. Under these guidelines, the applied anatomical essential for vaseularized transplantation of ilium, scapula, fibula, costa, tibia, radius, ulna, humerus, femur and clavicle are provided.
目的:对腰动静脉的位置分布及变异进行描述和统计分析,以提高腰骶段脊柱手术手术的安全性和有效性.方法:对30具尸体标本进行解剖学研究,主要观察(1)腰动静脉的数量与缺失,各节段腰动静脉发出点位置的定性描述,(2)腰动静脉左右共干与上下共干的概率以及腰动静脉的其他变异。结果: 腰动脉的数量以及位置相对固定,有5对腰动脉的一共有5例,腰动脉发出点的位置也不是完全与腰椎对应。腰动脉左右共干的占9.6%,未见上下共干。动脉中仅有65.3%的动脉有静脉伴行。腰静脉的数量变异非常大,最少一侧仅有1支腰静脉,最多有5支,最常见的情况是3支,占36.7%。腰静脉的位置变异也较大,与椎体没有特别的规律。腰静脉的左右共干的概率要大于动脉,为38.5%,而上下共干也是腰静脉的独有的现象,总共有26支,占总数的12.5%。另外,腰静脉的其他变异多见。结论:当脊柱手术选择腹主动脉左侧入路或者腹主动脉下腔静脉之间入路时,腰动脉和腰静脉的解剖特点尤为重要。动脉的位置相对较恒定,而静脉则变异较大,缺失常见,左右共干,上下共干,静脉之间的大的交通支常见,与腰椎的对应性不如动脉,且其与动脉并非严格伴行,这些原因都造成了静脉容易损伤的原因,在手术中应该特别注意。
Objective To assess the possibility of placing the posterior pedicle screw on atlas. Methods Twenty human cadaver specimens were used to insert pedicle screws in atlas, through the posterior arch or the pedicle of C1 into the lateral mass. The screw entry point was on the posterior surface of C1 posterior arch and at the intersection of the vertical line through the center of C2 inferior articular process and the horizontal line at least 3 mm below the superior rim of the C1 lamina. The screw of 3.5 mm in diameter was placed in a direction of 10° medial angle and 5° upwardangle. After placement of C1 pedicle screw, the distance from C1 screw entry point to the mediallateral midpoint of C1 pedicle, the maximum length of screw trajectory and the actual screw trajectory angles were measured. The direction of screw penetrating through the cortical of C1 pedicle or lateral mass and the injuries to the vertebral artery and spinal cord were observed.Results Forty pedicle screws were placed on atlas, the mean distance from C1 screw entry point to the medial-lateral midpoint of C1 pedicle was (2.20±0.42)mm, the maximum length of screw trajectory averaged (30.51±1.59)mm, and the actual screw trajectory angle measured (9.7±0.67)° in a medial direction and (4.6±0.59) ° in a upward direction. Only 1 screw penetrated the upper cortical bone of the atlas pedicle because the upward angle was too large, and 8 screws were inserted so deep that the inferior cortical bone of the C1 lateral mass was penetrated. But no injuries to the vertebral artery and spinal cord wereobserved. Conclusion C1 posterior pedicle screw fixation is quite accessible and safe, but the su
ObjectiveTo exclusively compare the short-and long-term outcomes of hepatic resection (HR) patients with multifocal tumors meeting the Milan criteria between locating in same and different sections. MethodsA total of 219 consecutive HR patients with multifocal tumors meeting the Milan criteria were divided into group SS (n=97, same section) and group DS (n=122, different sections) according to their anatomical location (Couinaud's segmentation). ResultsThe 1-, 3-, and 5-year overall survival (OS) and recurrence-free survival (RFS) rates were significantly higher in the group SS than those in the group DS (P < 0.05). The subgroup analysis showed that patients with 2 tumors and those undergoing en bloc resection were associated with better OS and RFS (P < 0.05). ConclusionsFor HCC patients with multifocal tumors meeting the Milan criteria, those with tumors locating in same hepatic section may have better longterm survival and lower HCC recurrence rates than those locating in different sections after HR.
目的:探讨后路寰枢椎椎弓根螺钉内固定的术前计划方案,明确其手术指导意义。方法:选取经CT评估寰枢椎椎弓根螺钉置入可行的,并拟选择该手术治疗的上颈椎不稳患者15例,容积再现重建(VR)寰枢椎椎弓表面影像,了解个体椎弓后方表面解剖形态与骨性解剖标志。同时按寰枢椎椎弓根理想的钉道走行,多平面重建(MPR)个体椎弓根断面影像。术前根据这些解剖影像设计手术暴露路经、理想的进钉点与钉道轨迹。术中按该术前计划手术暴露,找到理想的进钉点并钻孔置椎弓根螺钉。将术中观察到的C1后弓及C2椎弓表面解剖,与术前CT重建影像对比。术后CT复查,评价螺钉置入情况。结果:15例术中观察到的C1后弓及C2椎弓表面解剖特征与术前CT容积再现的影像一致。参照寰枢椎椎弓CT影像解剖制定术前计划方案,术中按其逐一操作,手术简单、直观,无重要血管神经损伤,置钉准确。结论:根据CT容积再现与多平面重建的寰枢椎解剖影像,制定后路寰枢椎椎弓根螺钉内固定术前计划方案,指导手术安全、可靠。
Objective To explore anatomical features and variation of non-recurrent laryngeal nerve and to summarize identification method, operation skill, and damage treatment experience of it. Method The clinical data of 15 patients with non-recurrent laryngeal nerve in 4 054 patients who underwent thyroidectomy from our division by the same medical group from January 2006 to January 2016 were retrospectively analyzed. Results A total of 6 626 recurrent laryngeal nerve (left side 3 248, right side 3 378) were exposed in 4 054 cases. Fifteen patients with non-recurrent laryngeal nerve were detected with an incidence of 0.23% (15/6 626), all located on the right side. There were 3 males and 12 females. There were 3 cases of type Ⅰ, 10 cases of type Ⅱa, 2 cases of type Ⅱb. And 2 patients with non-recurrent laryngeal nerve were injured. Conclusions Incidence of non-recurrent laryngeal nerve is lower, most of which occur on right side of neck, there is a high injury rate for its special anatomical location. It’s key to prevent nerve injury for careful interpreting preoperative auxiliary examination results and improving awareness of non-recurrent laryngeal nerve, fining dissection, conventional exposuring recurrent laryngeal nerve, and accurate using nerve monitor during operation.
局部解剖学是一门非常重要的医学课程,是基础医学与临床医学的桥梁。重视局部解剖课外科技活动,能有效增强医学生的自学能力、团结协作能力、科研创新能力以及综合素质的提高。
ObjectiveTo summarize the current status and progress of the treatment of chronic lateral ankle instability (CLAI). MethodsThe literature about the anatomical repair of CLAI at home and abroad was reviewed and summarized. ResultsBroström and its modified operations are the most common surgical treatment of CLAI. The operations showed satisfactory clinical outcomes in the short-, medium-, and long-term follow-up and low complication rate. Suture anchor technique and arthroscopic techniques are gradually used in Broström and its modified operations with satisfactory short-term effectiveness, but long-term effectiveness needs further observation because of the limitation of the short clinical application time. ConclusionBroström and its modified operations are effective, convenient, and safe to treat CLAI. Based on the researches of biomechanics and dynamic anatomy, the more personalized design of the rehabilitation program is the further research direction.
Objective To compare the effectiveness of anatomical single-bundle (ASB) and over-the-top singlebundle (OSB) reconstruction of the anterior cruciate l igament (ACL). Methods Between January 2008 and June 2008, 64 patients with ACL injury underwent arthroscopic ACL reconstruction. ASB ACL reconstruction was performed in 28 cases (ASB group) and OSB ACL reconstruction in 36 cases (OSB group). There was no significant difference in gender, age, diseaseduration, International Knee Documentation Committee (IKDC) score, Lysholm score, and side-to-side difference between 2 groups (P gt; 0.05). Results All incisions healed by first intention; no infection or other compl ications occurred. All cases were followed up 20-24 months (mean, 21.5 months). There were significant differences in the IKDC score, Lysholm score, and the side-to-side difference between last follow-up and preoperation in 2 groups (P lt; 0.05), but there was no significant difference between 2 groups at last follow-up (P gt; 0.05). Significant differences were found in negative rate of the pivot shift test between last follow-up and preoperation in ASB group and between 2 groups at last follow-up (P lt; 0.05), but there was no significant difference between last follow-up and preoperation in OSB group (P gt; 0.05). Conclusion The effectiveness of arthroscopic ASB ACL reconstruction is better than that of arthroscopic OSB ACL reconstruction, especially in controll ing rotational stabil ity.