Surgical outcomes and strategy of hypertrophic obstructive cardiomyopathy   总被引：1，自引：0，他引：1  

朱亚彬  刘志勇 《Journal of Zhejiang University. Science. B》2006,7(2):148-153

Objective： To evaluate the surgical clinical results of hypertrophic obstructive cardiomyopathy. Methods： We retrospectively collected data on 24 patients who underwent surgical management in the past ten years in two hospitals in China and Madras Medical Mission in India. Myomectomy was carried out on all patients. Among them 3 patients underwent mitral valve replacement; 2 patients underwent mitral valve repair （anterior mitral leaflet plication）; 2 patients underwent aortic valve replacement; 1 patient underwent aortic valve repair; 2 patients underwent aortic root replacement; 1 patient underwent Bentall＇s procedure and 1 patient underwent coronary artery bypass grafting because of a breached muscle bridge, Results： One patient died of post-operative heart failure. The mean follow-up time was 4.3 years, There was significant improvement in the symptomatic status. Sixteen patients were asymptomatic with good effort tolerance and only four patients had New York heart association （NYHA） Classes Ⅰ-Ⅱ due to associated valvular lesions, Conclusion： Our experience proved that symptomatic hypertrophic obstructive cardiomyopathy or non-symptomatic hypertrophic obstructive cardiomyopathy with combined heart disease is indication for surgery as surgical intervention could get better clinical results in this kind of patients compared with other non-surgical method because it beneficially reduces the systolic anterior motion （SAM） of the mitral valve leaflet, which could not be avoided by other non-surgical treatment.  相似文献   

运动员膝关节前交叉韧带损伤的机制及重建治疗   总被引：4，自引：0，他引：4  

王芝琴  李友寒 《湖南科技学院学报》2007,28(4):177-179

膝关节为全身最大、最复杂的关节,运动中膝关节比较容易受伤,其中前交叉韧带损伤是临床上较为常见又严重的运动损伤。前交叉韧带的功能解剖基础、损伤的发生率、损伤机制、手术重建治疗方法等对前交叉韧带损伤的了解和进行治疗的功能重建有非常重要的意义。本文将有关文献资料进行整理,为前交叉韧带损伤提供科学的理论知识。  相似文献   

前牙金属烤瓷桥56件失败原因分析与改进     

陈正国 《泰州职业技术学院学报》2011,11(3):82-83

目的分析金属烤瓷桥在前牙列缺损修复过程中失败的原因,探索改善金属烤瓷桥在前牙列缺损修复中的修复效果,努力提高修复的成功率和病人的满意度。方法：通过对968例1228件前牙金属烤瓷桥修复体3￣5年的临床观察,就其中56件修复失败的原因进行分析探讨,并根据失败原因提出改进措施。结果：56件前牙金属烤瓷桥修复失败的原因分别是：崩瓷24件,牙龈炎12件,基牙牙髓炎10件,牙龈变色及色泽不协调6件,瓷脱4件。结论：严格掌握适应症和正确的牙体预备与设计,以及合理的比色环境和方法都是金属烤瓷桥修复成功的关键所在。  相似文献   

关节镜下6股髌韧带重建前交叉韧带手术的护理配合     

莫丽平  谭云燕  罗冬兰  吕廉威  李捷琼  黄秋溪 《大众科技》2015,(6)

目的:总结了关节镜下6股髌韧带重建前交叉韧带术的手术配合要点。方法:对38例关节镜下6股髌韧带重建前交叉韧带术手术患者给予充分术前准备,巡回护士术中严密观察病情变化,正确使用气压止血带和各种关节镜精密仪器,器械护士积极主动配合手术步骤。结果:手术配合默契,无并发症发生,伤口一期愈合,膝关节功能恢复良好。结论:高度重视术前准备,术中合理有效的护理措施,科学熟练的手术配合是保证手术成功的关键。  相似文献   

Influence of sex and limb dominance on lower extremity joint mechanics during unilateral land-and-cut manoeuvres     

Joshua T. Weinhandl  Bobbie S. Irmischer  Zachary A. Sievert  Kevin C. Fontenot 《Journal of sports sciences》2017,35(2):166-174

Limb dominance theory suggests that females tend to be more one-leg dominant and exhibit greater kinematic and kinetic leg asymmetries than their male counterparts, contributing to the increased risk of anterior cruciate ligament injury among female athletes. Thus, the purpose of this study was to examine the influences of sex and limb dominance on lower extremity joint mechanics during unilateral land-and-cut manoeuvres. Twenty-one women and 21 men completed land-and-cut manoeuvres on their dominant limb as well as their nondominant limb. Three-dimensional kinematics and kinetics were calculated bilaterally for the entire stance phase of the manoeuvre. Women performed land-and-cut manoeuvres with altered hip motions and loads as well as greater knee abduction at touchdown compared to men. Dominant limb land-and-cut manoeuvres where characterised by decreased hip flexion at touchdown as well as decreased hip flexion and adduction range of motion compared to nondominant land-and-cuts regardless of sex. The observed sex differences are consistent with previous research regarding mechanisms underlying the sex disparity in anterior cruciate ligament injury rates. However, observed differences regarding limb dominances appear somewhat arbitrary and did not suggest that the dominant or nondominant limb would be at increased risk of anterior cruciate ligament injury.  相似文献   

前锯肌力量训练对提高散打运动员出拳力量的实验研究     

耿建华  王晓敏  邹文龙  陈翔 《福建体育科技》2012,31(3):22-24

目的:研究前锯肌的力量训练对散打运动员出拳力量的影响。方法:通过以12名散打运动员为实验对象,随机分为实验组和对照组,分别采用传统的力量训练和传统的力量与前锯肌力量结合训练的方式进行8周的实验研究并对其力量训练进行监控,以及运用生物力学等方法对出拳力量进行分析,对实验前后结果进行对比分析。结果:对照组的训练效果呈显著差异(P<0.05),而实验组的训练效果呈非常显著性差异(P<0.01).结论:增强前锯肌的力量训练对运动员的出拳力量有重要的影响。此实验为散打运动员的出拳力量训练提供参考依据。  相似文献   

The effects of limb dominance and a short term,high intensity exercise protocol on both landings of the vertical drop jump: implications for the vertical drop jump as a screening tool     

Enda F. Whyte  Patrick Kennelly  Oliver Milton  Chris Richter  Siobhán O’Connor  Kieran A. Moran 《Sports biomechanics / International Society of Biomechanics in Sports》2018,17(4):541-553

The effectiveness of vertical drop jumps (VDJs) to screen for non-contact ACL injuries is unclear. This may be contributed to by discrete point analysis, which does not evaluate patterns of movement. Also, limited research exists on the second landing of VDJs, potential lower limb performance asymmetries and the effect of fatigue. Statistical parametric mapping investigated the main effects of landing, limb dominance and a high intensity, intermittent exercise protocol (HIIP) on VDJ biomechanics. Twenty-two male athletes (21.9 ± 1.1 years, 180.5 ± 5.5 cm, 79.4 ± 7.8 kg) performed VDJs pre- and post-HIIP. Repeated measures ANOVA identified pattern differences during the eccentric phases of the first and second landings bilaterally. The first landing displayed greater (internal) knee flexor (η² = 0.165), external rotator (η² = 0.113) and valgus (η² = 0.126) moments and greater hip (η² = 0.062) and knee (η² = 0.080) flexion. The dominant limb generated greater knee flexor (η² = 0.062), external rotator (η² = 0.110) and valgus (η² = 0.065) moments. The HIIP only had one effect, increased thoracic flexion relative to the pelvis (η² = 0.088). Finally, the dominant limb demonstrated greater knee extensor moments during the second landing (η² = 0.100). ACL injury risk factors were present in both landings of VDJs with the dominant limb at potentially greater injury risk. Therefore, VDJ screenings should analyse both landings bilaterally.  相似文献   

落地侧切动作对下肢关节的影响与分析     

陈豪  李建设  宋万翔 《浙江体育科学》2022,(2)

目的:确定运动员在落地后即刻启动完成侧切变向(LSC)动作的下肢踝、膝和髋三关节矢状面的运动学和动力学特点,并与平地跑动侧切变向(SC)对比分析、探讨这些差异对下肢关节造成的影响。方法:以14名高水平足球运动员为背景的大学生完成落地侧切和平跑侧切动作时的下肢运动学和动力学数据进行采集与分析。结果:LSC动作的踝、膝关节ROM和关节角速度显著增加,髋关节ROM则呈相反趋势(P<0.05或P<0.01);LSC的踝、膝和髋关节力矩峰值,踝、髋关节功率峰值呈现显著大于SC(P<0.01),膝关节功率峰值小于SC(P<0.05);LSC在水平向后、垂直向上地反峰值及峰值加载率有明显的增加(P<0.01),水平向右地反无明显差异(P>0.05)。结论:LSC虽然略降低了膝关节功率峰值,但其余所有运动学、动力学及GRF都预示其下肢关节所承受的损伤风险更高,尤其是踝关节和膝关节。踝关节的高功率和跖屈肌的持续紧张、伸膝力矩和三维地反的显著升高,使得该动作比公认高损伤风险的平跑侧切损伤风险几率更大。  相似文献   

太极拳运动中膝关节损伤机制和预防   总被引：6，自引：0，他引：6  

朱雅敏 《体育与科学》2002,23(2):59-60,71

膝关节损伤在太极拳运动中较常发生，它的损伤与太极拳运动的动作姿势、技术动作、下肢肌肉的收缩力和韧带的牵拉力等因素有密切关系。研究太极拳运动中膝关节损伤的原因，是为了更好而有效地达到预防膝关节损伤的目的，也为改进教学、训练的方式方法提供依据。  相似文献   

A novel approach to the dissection of the human knee     

F. Richard Clemente  Philip A. Fabrizio  Michael Shumaker 《Anatomical sciences education》2009,2(1):41-46

The knee is one of the most frequently injured joints of the human body with injuries affecting the general population and the athletic population of many age groups. Dissection procedures for the knee joint typically do not allow unobstructed visualization of the anterior cruciate or posterior cruciate ligaments without sacrificing the collateral ligaments. In many cases, the relationships of the intraarticular structures are lost as dissection systematically removes superficial structures to gain access to deeper structures. The authors present an alternative technique for dissection of the human knee joint that allows maximal visualization of intraarticular structures such as the cruciate ligaments and menisci with minimal disturbance to the tibial and fibular collateral ligaments, thus preserving the relationships of the ligamentous and intraarticular structures. Anat Sci Ed 2:41–46, 2009. © 2009 American Association of Anatomists.  相似文献