Electromyographic activity of frontalis and sternocleidomastoid muscles in patients with temporomandibular disorders

Little is known of the effects of an interocclusal appliance on the activity of craniocervical muscles in patients with temporomandibular disorder. The bilateral electromyographic activity of the frontalis muscle and sternocleidomastoid muscle were assessed in 10 patients with temporomandibular disorders and eight gender, age and dentally matched asymptomatic control subjects during rest and different clenching tasks with or without an interocclusal appliance. Clenching significantly increased both frontalis and sternocleidomastoid activity from rest. Clenching with an interocclusal appliance, as compared with clenching alone, also significantly reduced frontalis activity in both groups, but not for sternocleidomastoid. Increased electromyographic activity of these muscles may represent co-activation of the craniocervical musculature during clenching.     

胸锁乳突肌扳机点与老化的相关性研究

目的:研究胸锁乳突肌乳突部的肌筋膜扳机点压痛与年龄因素之间的相关性。方法:采用定量按压法,按乳突前、下、后三部分,对不同年龄段男女健康受试者胸锁乳突肌乳突部的扳机点进行检查,采取VAS压痛量化评分评定压痛程度。结果:中老年组VAS疼痛评分为5.358±2.309,青年组VAS疼痛评分为3.357±1.956。两组比较差异有显著性意义(P<0.001)。结论:胸锁乳突肌乳突部的肌筋膜扳机点压痛的发生率和疼痛程度与年龄因素有密切的关系,中老年组VAS压痛评分及压痛程度明显高于青年组。     

基于全麻下不同径路行右颈内静脉穿刺置管术的临床效果研究

目的：探讨基于全麻下经胸锁乳突肌三角中路与颈动脉旁前路行右颈内静脉穿刺术的临床效果。方法随机选取2004年9月~2014年9月本院收治的全身麻醉患者100例,均行基于全麻下右颈内静脉穿刺置管术,分为经颈动脉旁前路穿刺置管组50例,经胸锁乳突肌三角中路穿刺置管组50例,对比分析两组患者的成功率和不良反应发生率。结果经颈动脉旁前路穿刺置管组成功48例(96%),失败2例(4%),经胸锁乳突肌三角中路穿刺置管组成功40例(80%),失败10例(20%),差异有统计学意义(P<0.05);误穿动脉2例(4%),明显少于经胸锁乳突肌三角中路穿刺置管组12例(24%),差异有统计学意义(P<0.05)。结论基于全麻下右颈内静脉穿刺置管术,经颈动脉旁前路置管的效果更为显著,安全性更高,值得临床推广应用。     

带蒂胸锁乳突肌肌瓣一期修复腮腺肿瘤术后缺损的疗效

目的通过与直接拉拢缝合比较,探讨带蒂胸锁乳突肌肌瓣修复腮腺肿瘤切除后缺损的疗效。方法回顾分析2002年1月-2010年4月,采用带蒂胸锁乳突肌肌瓣一期修复38例(肌瓣组)腮腺肿瘤切除后缺损患者的临床资料,与同期直接拉拢缝合修复的35例(对照组)患者进行比较。两组患者性别、年龄、病程、肿瘤类型及大小等一般资料比较,差异均无统计学意义(P<0.05),具有可比性。分析两组术后局部凹陷畸形、Frey综合征和腮腺瘘并发症发生情况。结果肌瓣组术后肌瓣均成活,创面Ⅰ期愈合;对照组切口均Ⅰ期愈合。术后两组患者均获随访,随访时间6～98个月。随访期间肿瘤均无复发。术后6个月两组患者面部凹陷畸形程度比较,差异有统计学意义(χ2=53.202,P=0.000)。肌瓣组术后发生1例(2.6%)腮腺瘘,1例(2.6%)Frey综合征;对照组分别为8例(22.8%)及20例(57.1%);两组并发症发生率比较差异均有统计学意义(P<0.05)。结论采用带蒂胸锁乳突肌肌瓣修复腮腺肿瘤切除后缺损,可预防术后局部凹陷畸形、Frey综合征和腮腺瘘并发症的发生。     

学龄期儿童先天性肌性斜颈的治疗

目的探讨学龄期儿童先天性肌性斜颈的治疗方法。方法采用胸锁乳突肌单极切断术加术后胸颈联合斜颈矫形支具固定4~6个月,治疗学龄期儿童先天性肌性斜颈65例,男23例,女42例;手术平均年龄8岁(6~14岁)。结果本组65例,随访时间1~4年,平均2.7年。参考Cheng的疗效分级法,其中优42例(64.6%),良15例(23.1%),可5例(7.7%),差3例(4.6%)。结论胸锁乳突肌单极切断术加术后胸颈联合斜颈矫形支具,创伤小、疗效好、并发症少,是学龄期儿童先天性肌性斜颈首选的治疗方式。     

Sternocleidomastoid ultrasonography data for muscular torticollis in infants

Introduction: This study was performed to obtain normative ultrasonographic data of the sternocleidomastoid (SCM) muscle in infants and to describe an ultrasound method for evaluating muscular torticollis. Methods: The thickness and cross‐sectional area (CSA) of the sternal and clavicular heads of the SCM in 84 subjects were analyzed retrospectively. The diagnostic performance of ultrasonography (US) was estimated using receiver‐operating characteristic analysis. Results: Muscle thickness increased with age until 10 months. There were no significant differences in thickness or CSA between the right and left sides (P > 0.05) in normal subjects. A ratio of the thickness of the affected side to the unaffected side for the sternal head of the SCM muscle of >1.19 showed a diagnostic sensitivity of 97.9% and specificity of 96.4%. Conclusions: Distinguishing the heads of the SCM muscle and comparing the thickness of the same head on both sides using US may be helpful for evaluating torticollis in infants. Muscle Nerve 000: 000–000, 2013     

腮腺改良术式预防味觉出汗综合症的临床研究

目的：探讨胸锁乳突肌瓣即刻充填腮腺手术术区,同时保留腮腺咬肌筋膜对预防味觉出汗综合症的临床效果。方法：选择45例已行腮腺良性肿瘤切除术病例进行回顾性分析。观察组21例,腮腺肿瘤切除术后行胸锁乳突肌瓣即刻充填＋保留腮腺咬肌筋膜预防味觉出汗综合症;对照组24例,单纯行腮腺浅叶切除术。45例均按期随访,做碘-淀粉试验检查（Minor试验）进行客观评价。结果：经术后6～24个月随访,所有手术均获得成功,观察组Minor试验3例阳性,对照组Minor试验18例阳性,两组之间发病率有显著性差异（P〈0.01）。结论：腮腺术后术区胸锁乳突肌瓣即刻填塞＋同期保留腮腺咬肌筋膜可明显降低味觉出汗综合症的发病率。     

胸锁乳突肌扳机点疼痛部位及其性别因素分析

目的 研究胸锁乳突肌乳突部扳机点疼痛分布特征及其性别因素。方法 采用定量按压法,按其乳突附着部的前、中、后三部分,对不同年龄段男女健康受试者胸锁乳突肌乳突部的扳机点进行检查,采取VAS疼痛量化评分评定疼痛程度。结果 (1)老年男性组VAS疼痛评分为5.226±0.331,老年女性组VAS疼痛评分为5.531±0.379;组别间差异无显著性(P>0.05);(2)青年男性组VAS疼痛评分为2.940±0.331,青年女性组VAS疼痛评分为3.982±0.405;组别间差异无显著性(P>0.05);(3)胸锁乳突肌在乳突前与乳突中、乳突中与乳突后的疼痛比较差异有显著性(P<0.05);乳突前与乳突后差异无显著性(P>0.05)。结论 胸锁乳突肌乳突部扳机压痛在性别间差异无显著性,胸锁乳突肌乳突部扳机点疼痛以乳突前和乳突后最为明显。