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41.
Shinichiro Iwata Yasunori Suda Takeo Nagura Hideo Matsumoto Toshiro Otani Yoshiaki Toyama 《Knee surgery, sports traumatology, arthroscopy》2007,15(4):343-349
The purpose of this study is to evaluate the relationship between the magnitude of knee laxity and posterior instability at
different knee flexion angles and clinical disability in isolated posterior cruciate ligament (PCL) deficient patients. Knee
laxity at 20° and 70° of knee flexion were evaluated using KT-2000 arthrometer, and the posterior instability at 20°, 45°
and 90° of flexion were evaluated using stress radiography. We assessed the differences in the knee laxity and the tibial
translation between isolated PCL deficient knees and normal knees, and between the patients with giving-way during activities
of daily living (ADL) and without giving-way. There were statistical differences in the knee laxity and the tibial translation
at all knee flexion angles between the PCL deficient knees and normal knees. The magnitude of the knee laxity at 20° of flexion
measured with KT-2000 arthrometer was significantly larger in the patients with giving-way than those in the patients without
giving-way although there was no significant difference in the tibial translation at 70° between the two groups. The tibial
translation in both medial and lateral compartments at 20° and 45° measured with stress radiography were significantly larger
in the patients with giving-way than those in the patients without giving-way although there was not significant difference
at 90° between the two groups. These results suggested that the magnitude of the knee laxity and the posterior tibial translation
at shallow knee flexion angles would be related to giving-way during ADL in isolated PCL deficient patients. 相似文献
42.
43.
报告468例500眼后房型人工晶体植入术后2周内出现的并发症发生率,其中角膜水肿73.6%,色素膜炎症反应88.4%,瞳孔变形12.8%,人工晶体表面渗出膜3.8%,后囊混浊13.8%,短暂性高眼压5.2%,晶体皮质残留5.8%,人工晶体偏位2.6%,前房出血3%。提高术后视力的关键是提高手术技巧以减少并发症的发生。 相似文献
44.
Francesco Franceschi Umile Giuseppe Longo Laura Ruzzini Paolo Simoni Bruno Beomonte Zobel Vincenzo Denaro 《Knee surgery, sports traumatology, arthroscopy》2007,15(3):266-268
Bilateral discoid medial menisci is an extremely rare condition of the knee and it can be associated to other pathological
findings, including anterior portion cyst formation. We report on the clinical features, radiographic findings, treatment
and results of one patient who presented a bilateral medial discoid meniscus combined with posterior portion cyst of the left
knee. To the best of the author’s knowledge, this is the first case of bilateral medial discoid meniscus associated with posterior
portion cyst formation. 相似文献
45.
目的探讨环孢霉素A诱发可逆性后部白质脑病综合征(PRLS)的MRI表现。资料与方法回顾性分析1例PRLS的临床资料和MRI表现并复习文献。结果MRI显示PRLS以顶枕叶为主的皮层及皮层下白质病变,病变多呈双侧对称性分布,偶可累及双侧颞叶后部及额叶,T2WI和液体衰减翻转恢复序列(FLAIR)对病变的显示有独特的作用,扩散加权成像(DWI)能够确定PRLS的临床分期。结论PRLS在MRI上具有特征性。MRI表现结合临床资料,对PRLS多能作出正确的诊断。 相似文献
46.
后颅凹成血管细胞瘤的影像学特点及其诊断 总被引:4,自引:0,他引:4
目的:探讨成血管细胞瘤的影像学特点。材料与方法:报道14例成血管细胞瘤的CT和MRI所见,分析肿瘤的特点。结果:囊性肿瘤,在MRI上表现为囊性病灶和附壁肿瘤结节;在CT上表现为该典型征象占81.8%。混合性肿瘤3例,在CT和MRI上表现实质性肿块、偏心性囊变和均一显著强化;后者还可见肿瘤旁和肿瘤内血管流空。结论:CT和MRI均是诊断成血管细胞瘤的有效检查方法。成血管细胞瘤的特征性影像学表现是囊肿和突入囊内的壁结节,以及肿瘤的异常显著增强 相似文献
47.
目的 通过107例胸腰椎骨折伴脊髓损伤病例的治疗,探讨前、后路手术适应证的选择。方法 31例经前路减压植骨,采用Z-Plate等内固定。76例经后路采用短节段椎弓根钉内固定。结果 两组均获得了满意的疗效。结论 选择前或后路手术,应综合考虑脊髓损伤程度、手术时机与技巧、骨折的部位、骨折类型和影像结果等,才能确实做到减压、恢复脊柱序列和坚强固定的目的。 相似文献
48.
F. Grisoli M.D. Th. Brue N. Graziani R. Costa J. Trouillas D. Begou Ph. Jaquet 《Acta neurochirurgica》1990,103(3-4):92-98
Summary Preliminary results obtained from 26 cases of prolactinomas less than 20 mm in diameter after treatment by enlarged adenomectomy are described.The operation consisted in removal of the adenoma, a layer of normal pituitary at the outer edge of the tumour and the pituitary capsule in contact with the sellar meninges. 24 women and 2 men were involved whose prolactin levels (PRL) were less than 200 ng/ ml. All presented abnormal PRL responses to Thyrotropin releasing hormone (TRH) and Metoclopramide (MCP) tests and an absence of a nocturnal rise in the sleep cycle study. Postoperatively, three patients developed transitory diabetes insipidus and five transitory adrenal insufficiency. Gonadotropin reserve was always found normal. All 24 women resumed normal menstrual cycles and two became pregnant within one year. From a serological viewpoint, after surgery 100% of patients were found to be normal for levels of prolactin but only 85% turned to normal dynamic tests. The results of this small series of enlarged adenomectomies seem better than those obtained using selective adenomectomy, but must be confirmed with time. 相似文献
49.
后房型人工晶状体植入术后的超声生物显微镜观察 总被引:6,自引:2,他引:4
目的:探讨后房型人工晶状体植入术后眼前节结构的改变。确切定位人工晶状体襻的位置。观察人工晶状体襻对于周围组织的影响。方法:白内障摘除及后房型人工晶状体植入术的50名患者(50眼)于术前,术后1周及三个月进行超声生物显微镜观察。结果:术后前房深度,房角宽度押送术前显著增加。人工晶状体中囊袋内植入者36枚(72%)。睫状沟植入者6枚(12%),不对称植入者8枚(16%)。人工晶状体光学部倾斜1眼(2%)。人工晶状体襻推挤虹膜根部2眼(4%)。人工晶状体襻睫状沟侵蚀3眼(6%)。术后1周2眼(4%)眼压升高。皮质少量残留5眼(10%)。结论:囊袋内为后房型人工晶状体植入的理想位置。可保证人工晶状体的良好位置。避免人工晶状体襻对于色素膜组织的干扰及对血-房水屏蔽的损伤,从而减少并发症的发生。 相似文献
50.
O. Weijtens G. W. S. Thoe Schwartzenberg J. C. Van Meurs 《Documenta ophthalmologica. Advances in ophthalmology》1996,92(1):37-40
Day care is generally accepted in anterior segment eye-surgery. In the Rotterdam Eye Hospital this option was also considered for posterior segment surgery. We were interested in the opinion, of patients on this matter and therefore asked patients, who were admitted for posterior segment eye-surgery, to answer a questionnaire. The major question was: ‘If your physician had given his permission, do you think it would have been possible for you to go home on the evening after surgery?’. Other questions evaluated problems in organising assistance at home and transportation to the out-patient clinic as well as circumstances after the operation, such as pain, nausea, dizziness and anxiety. Eighty-one out of 87 patients responded: 56% answered ‘eyes’ and 44% ‘no’ to the major question. Relating the answer to the major question to medical data and to answers to the other questions, we found organizational problems at home and anxiety to have a statistical significant relation with a negative answer. Clinical factors like age, American Society of Anesthesiologists (ASA)-class, diabetes mellitus (including insulin-dependant), type of anesthesia, time of the day the surgery was finished, duration of surgery, pain, nausea or dizziness were not signficantly related. The number of patients involved in this study, however, is too small to draw conclusions on specific subgroups of patients. 相似文献