Sarcomas of head and neck — A 10 yrs experience

38 cases of sarcoma of head and neck region were analysed in a retrospective way in relation to age, anatomic location, histological, clinical profile, and surgical approaches. Compared to other types of head and neck neoplasms, such as squamous cell carcinoma, soft tissue sarcomas have low rates of regional metastases. However the biological behaviour of soft tissue sarcoma is more aggressive specially in paediatric age group. In the present series, CT scan was considered as the primary modality of investigation. Surgery generally has been recommended as the primary method of treatment for achieving local control, except in those high-grade tumours arising in sites not amenable to resection. 3-year and 5-year survival rates in this present series 50% and 31.6% respectively.     

Surface movement errors in shank kinematics and knee kinetics during gait

The movement of surface mounted targets (SMT) on a shell at the mid-shank and of bone mounted targets attached to the distal shank using a Percutaneous Skeletal Tracker (PST) were simultaneously measured during free-speed walking of three adult subjects having different body types. Surface movement errors in shank kinematic estimates were determined by expressing the segmental motion derived from the SMT relative to the PST-based segment coordinate system (SCS) located at the segment center of gravity. The greatest errors were along and around the shank longitudinal axis, with peak magnitudes of 10 mm of translation and 8° of rotation in one subject. Estimates of knee joint center locations differed by less than 11 mm in each SCS direction. Differences in estimates of net knee joint forces and moments were most prominent during stance phase, with magnitudes up to 39 N in the shank mediolateral direction and 9 N.m about the mediolateral axis. The differences in kinetics were primarily related to the effect of segment position and orientation on the expression of joint forces and on the magnitude and expression of joint moments.     

关于软腭下降机制的肌电图学研究

目的探讨软腭的下降机制。方法将腭舌肌、腭咽肌设定为软腭下降肌,用肌电图学的方法进行验证。结果在软腭下降时腭舌肌、腭咽肌都出现了肌活动电位,另外,腭舌肌、腭咽肌在讲话时也参与了构音运动。结论腭舌肌收缩使软腭下降、鼻咽腔开放,腭咽肌由于具有咽绞扼功能,不但可使软腭下降,还与咽腔闭锁密切相关。     

舒肤特治疗痤疮疗效观察

目的　探讨舒肤特对座疮的治疗作用。　方法　病人随机分为治疗组和对照组。治疗组 45例 ,男 2 8例 ,女 17例 ;对照组 45例 ,男 2 5例 ,女 2 0例。年龄 14～ 42岁 ,平均 2 4岁。病程 2周～ 6年。治疗组用舒肤特 ,对照组用2 5 %氯霉素酊 ,每日 2次 ,4～ 8周为 1疗程。每周复诊 1次。　结果　治疗组痊愈率 3 7 8% ,总有效率 84 5 % ,对照组痊愈率 17 8% ,总有效率 62 2 % ,治疗组痊愈率优于对照组 ( χ2 =10 0 2 ,P <0 0 1) ,两组总有效率差异有显著性 ( χ2=11 42 8,P <0 0 1) ,　结论　舒肤特是中西药复方制剂 ,其用于治疗痤疮效果较好 ,无明显副作用。     

复方肾华治疗大鼠改良慢性血清病肾炎的实验研究

目的　观察复方肾华胶囊对改良大鼠慢性血清病肾炎模型的治疗作用。方法　采取传统大鼠慢性血清病肾炎模型制作方法加上切除大鼠一侧肾脏、隔日饮饲牛血清白蛋白 (BSA)酸化水、腹腔注射大肠杆菌内毒素 (LPS)等措施 ,制作肾炎模型 ,与西药蒙诺作对照 ,观察中药肾华对肾炎大鼠尿蛋白、血生化、凝血指标、肾功能、病理、免疫荧光以及增殖细胞核抗原 (PCNA)表达的作用。结果　肾华胶囊能够显著减轻肾炎大鼠肾脏重量及肾重指数、降低肾炎大鼠尿蛋白、升高血清蛋白、降低胆固醇、甘油三酯、改善肾功能、纠正凝血功能紊乱、减轻肾脏病理改变、减轻免疫荧光变化、减弱PCNA的表达。结论　中药肾华胶囊对大鼠慢性血清病肾炎模型有较好的治疗作用     

Fluid-fluid levels in cavernous hemangioma of soft tissue

Five cases of cavernous hemangioma with fluid-fluid levels on magnetic resonance imaging and/or computed tomography are reported. The signal characteristics were those of blood and histological analysis of the fluid-fluid levels showed that they were blood-filled cavities in the tumor. Although this finding itself is not specific, it may help in confirming the diagnosis of cavernous hemangioma.     

软组织复发及多发性平滑肌肉瘤的临床病理、免疫组织化学及电镜研究

本组报告软组织复发及多发性平滑肌肉瘤22例(多发性2例),进行了组织学、免疫组织化学及电镜观察。本组20例复发性平滑肌肉瘤复发次数为1～5次,间隔时间为2月～12年,病理可分为高分化型、低分化型、中度分化型及临界型平滑肌肉瘤。临界型易被忽略,应进行随访。     

RP-HPLC法测定通滞苏润江胶囊中没食子酸的含量

目的建立反相高效液相色谱法测定通滞苏润江胶囊中没食子酸的外标定量方法。方法用十八烷基硅烷键合硅胶为填充剂;乙腈-含0.1%三乙胺的0.1%磷酸溶液（3∶97）为流动相;检测波长为270nm。结果没食子酸在0.373 2-0.995 2μg范围内呈良好的线性关系,r=0.999 9。结论该方法操作简便,快速,准确,灵敏度高,重现性好,适用于通滞苏润江胶囊中没食子酸的含量测定。     

Infected chronic hematoma mimicking soft tissue neoplasm

A rare case of an infected chronic hematoma in a patient with immunodeficiency syndrome mimicking a soft tissue neoplasm is presented. There are few reported cases of hematogenous infection of chronic hematomas, which be difficult to differentiate from soft tissue neoplasms.     

上肢屈曲性旋转撕脱离断伤的形成及功能挽救

目的探讨上肢轴向屈曲性旋转撕脱离断伤的形成以及侧胸和背部组织在功能挽救中的应用方式和疗效。方法2000年7月～2003年9月共收治6例上肢轴向屈曲性旋转撕脱离断伤患者,所有病例行一期再植或寄养再植。术后肩关节外展90°、肘关节屈曲100°位石膏或支具固定,6周后去除固定行功能锻炼。结果6例患者再植均顺利成活,随访3个月～2年,术后肩关节外展50°～90°,前屈50°～70°,后伸20°～30°,内收20°～40°;肘关节屈曲100°～140°,伸-20°～0°;重建术后3个月时屈肘肌力达Ⅳ～Ⅴ级。结论充分利用侧胸和背部组织特点进行分期、分层手术,解决创面覆盖和功能重建互相干扰的矛盾,是挽救严重轴向屈曲性旋转撕脱离断伤上肢,恢复其外形和功能的可靠方法。