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1.
A number of masses and pseudomasses may be encountered during the echocardiographic examination of the transverse and oblique sinuses with significant clinical implications. This review discusses the clinically relevant anatomy of the pericardial sinuses emphasizing diagnostic pitfalls that may be encountered during their echocardiographic examination. 相似文献
2.
目的 探讨Ⅴ型斜视伴原发性下斜肌功能过强的治疗效果。方法根据手术方式将49例Ⅴ型斜视伴下斜肌功能过强惠者分为四组,分别采用水平肌加强减弱术不联合下斜肌切断减弱术(Ⅰ组)、联合单侧下斜肌切断减弱术(Ⅱ组)、联合双侧下斜肌对等切断减弱术(Ⅲ组)及联合双侧下斜肌不对等切断并部分切除减弱术(Ⅳ组)治疗Ⅴ型斜视。结果Ⅴ型斜视伴原发性下斜肌功能过强采用四种方式治疗后,眼位正位,下斜肌功能亢进改善+~++,双侧下斜肌功能对等,术前术后原在位度数和上下注视25。斜视角之差的差异有非常显著性(P〈0.001)。结论根据单侧或双侧下斜肌功能过强的具体情况来选择不同的手术方式治疗Ⅴ型斜视伴原发性下斜肌功能过强,眼位矫正满意,同时手术方式简单、安全有效。 相似文献
3.
目的评价以髂深血管为蒂的髂骨—腹内斜肌双岛状瓣(简称同蒂双岛状瓣)修复下颌复合组织缺损的临床应用价值。方法2005年1月至2006年10月,应用同蒂双岛状瓣修复10例下颌骨复合组织缺损(包括下颌骨体部、下颌角和下颌骨升支及其周围软组织,其中有7例还包含髁突的缺损)。结果10例同蒂双岛状瓣移植均获成功,仅1例出现局部轻度感染,换药后二期愈合。术后随访3~24个月,均无肿瘤复发,颌面外形两侧基本对称,咬合关系恢复正常,且供区未见明显的并发症。结论同蒂双岛状瓣具有切口隐蔽、单一,对供区功能影响小,软硬组织复合缺损同期修复效果好等特点,是半侧下颌骨复合周围软组织大型缺损功能重建的较好方案。 相似文献
4.
M. M. Moneer 《Surgery today》1997,27(11):1022-1025
This study consists of a preliminary report of 94 cases with various types of inguinal hernias. All cases were repaired by
a new technique, in which the herniotomy is performed via a preperitoneal approach and the repair is achieved by using a bipedicled
flap from the external oblique aponeurosis, which is transpositioned into the preperitoneal space and sutured to the iliopubic
tract. The details of this technique are herein described. After a follow-up ranging from 15 to 48 months, both the early
and late complications are presented. They were minimal and of minor significance, apart from a hernial recurrence in one
case. 相似文献
5.
6.
Effects of knee joint angles and fatigue on the neuromuscular control of vastus medialis oblique and vastus lateralis muscle in humans 总被引:1,自引:0,他引:1
The effects of different knee joint angles and fatigue on the neuromuscular control of the vastus medialis oblique (VMO)
and vastus lateralis (VL) muscles were investigated in 17 (11 men, 6 women) young subjects. The electromyogram (EMG) activities
and the force generation capacities were monitored before and after a fatigue protocol at three different knee joint angles,
90°, 150°, 175° of knee extension, on three occasions. In response to randomly triggered light signals, the subjects performed
three isometric maximal voluntary contraction (IMVC) that lasted for 4 to 8 s. This was then followed by the fatigue protocol
which consisted of six bursts of contractions fixed at 30 s on and 10 s off. Immediately after the exercise to fatigue, the
subjects performed another three IMVC in response to the light signals. Repeated measures ANOVA were performed to examine
the effects of fatigue at these three positions on the electromechanical delay (EMD), median frequency (f
med), peak force (F
peak) and root mean square (rms)-EMG:F
peak quotient of VMO and VL. The results revealed a significant effect of the three knee joint angles on the EMD before the fatigue
(P < 0.05). The fatigue protocol induced a significant decrease in F
peak at all the three positions (P < 0.01). However, the fatigue induced a significant decrease of f
med at only 90° and 150° of knee extension (P < 0.01). This occurred in parallel with the lengthening of EMD at these two joint angles (P < 0.01 and P < 0.05). The effects of fatigue on the f
med and EMD were not significant between VMO and VL at all three angles. The insignificant difference in f
med and EMD between VMO and VL at the three knee positions before and after fatigue indicated that no preferential onset activation
between VMO and VL had occurred.
Accepted: 1 September 2000 相似文献
7.
BackgroundThe surgical treatment of moderate-advanced hallux rigidus is controversial. Cheilectomy is widely used but has recurrence rates of up to 30%. Dorsal oblique metatarsal osteotomy (DOO) has also shown good results, however, there is no study comparing outcomes of the DOO against cheilectomy.MethodsThis was a retrospective propensity score matched study based on registry data from a single tertiary institution. Between 2007 and 2017, all patients who had undergone dorsal cheilectomy or DOO for hallux rigidus were included. Patients with previous foot surgery, revision surgeries, and concomitant surgical procedures were excluded. Clinical outcomes, complication rates, revision rates and patient satisfaction were assessed at 2 years postoperatively.ResultsThere were 44 patients (34 cheilectomy, 10 DOO). After propensity score matching, 17 cheilectomy and all 10 DOO cases were selected for comparison. Patients in both groups had a significant improvement in visual analogue pain scores (VAS) and AOFAS 1st toe scores 2-years post-operatively (P < 0.001) with high levels of post-operative satisfaction (85.1%). Overall there were no statistically significant differences in post-operative scores, improvement in scores, complication rates, revision rates, and levels of patient satisfaction between groups.ConclusionsBoth the DOO and cheilectomy give similarly good outcomes for moderate-advanced hallux rigidus. Further studies are needed to elucidate differences in indications for each procedure. 相似文献
8.
探讨DR颈椎斜位影像中应用组织均衡技术的优势 总被引:4,自引:0,他引:4
目的探讨颈椎斜位直接数字化X线摄影(direct digital radiography,DR)中,采用组织均衡技术的DR图像与标准DR图像的差别。方法利用中国医科大学附属第一医院引进的GE—Revolution XQ/Ⅰ型DR机对所摄的颈椎斜位影像中随机抽取100例作为分析资料。应用组织均衡技术对图像进行处理,同时与标准DR图像进行比较。结果应用组织均衡技术的图像,同一幅图像上不同部位的细节均可清晰显示;标准DR图像需调节不同的窗宽、窗位才能清晰显示或不能显示不同体厚部位的细节。结论在直接数字化X线摄影中,应用组织均衡技术能明显改善因受体厚度影响而难于观察部分的可视性,同时又不牺牲其他部分的细节显示,使DR的应用更完美。 相似文献
9.
目的:探讨伴有相关疾病的先天性上斜肌麻痹的诊断与治疗方法,以获得满意的手术效果。方法:查清相关病的病因,排除其对眼部的影响;结合上斜肌检查,确定眼科手术方式和手术量,保证安全地实施手术。结果:使14例伴有相关疾病的先天性上斜肌麻痹的患者安全地实施了手术,不正常的眼位和头位得到了满意矫正。结论:伴有相关疾病的先天性上斜肌麻痹是较难诊治的眼病;只要设法排除相关疾病对眼部体征的影响,选择适当的手术方式和手术量,就能获得满意的手术效果 相似文献
10.