A standing posture support device that reduces laparoscopic surgeons’ occupational lower limb stress

Background: We developed a surgical knee rest (SKR) that can be used to decrease the stress placed on the lower half of the body when surgeons work in the standing position. We tested the effectiveness of this device in the context of laparoscopic surgery.

Material and methods: Five healthy, right-handed male surgeons participated, and we recorded surface electromyography (sEMG) signals from the two heads of the left and right gastrocnemius (Gc) muscles during laparoscopic resections of colorectal cancer. The outcome variable was the percentage of maximum Gc muscle effort generated, reported as percent maximal isometric voluntary contraction (%MVC), and this variable was compared between surgeries performed with and without use of the SKR. Assessment covered the first 100?min of surgery, subdivided into two 50-min periods.

Results: Mean %MVC of the left Gc muscle for the full 100-min test period was significantly decreased when the SKR was used (p?=?.027, vs. SKR not used). Notably, mean %MVC of both Gc muscles was significantly decreased during the first 50?min of surgery (p?=?.008 and p?=?.0046).

Conclusion: The SKR is useful for decreasing physical stress incurred by laparoscopic surgeons when working in the standing position.     

经椎旁肌间隙入路与微创经皮入路手术治疗胸腰椎骨折的效果比较

目的比较胸腰椎骨折患者接受经椎旁肌间隙入路与微创经皮入路手术治疗的效果及关节功能。方法回顾性分析2014年4月-2015年10月在该院接受内固定手术治疗的胸腰椎骨折患者,根据手术入路不同分为椎旁入路组和经皮微创组,分别接受经椎旁肌间隙入路与微创经皮入路手术治疗。比较两组患者的手术情况、围手术期血清创伤分子含量以及远期功能恢复情况和矫正畸形效果。结果椎旁入路组的手术时间明显短于经皮微创组,差异有统计学意义(P0.05);术中出血量、术后引流量、术后卧床时间、住院总时间与经皮微创组比较,差异均无统计学意义(P0.05);两组患者术后当天的血清肌酸激酶(CK)、肌红蛋白(Myo)和乳酸脱氢酶(LDH)含量比较,差异均无统计学意义(P0.05),术后3、6和12个月时的伤椎前后缘高度比、Cobb角、视觉模拟评分(VAS)比较,差异均无统计学意义(P0.05)。结论椎旁肌间隙入路与微创经皮入路手术治疗胸腰椎骨折的效果和创伤程度相当,椎旁肌间隙入路的手术操作更为简单、手术时间更短。     

超声引导下腹横肌平面阻滞在腹腔镜下胆囊切除术术后镇痛的疗效与评价

目的 探讨超声引导下腹横肌平面阻滞在腹腔镜下胆囊切除术术后镇痛的疗效与评价。方法 将2018年1月～2019年3月在我院肝胆外科行腹腔镜下胆囊切除术的60例患者随机分为两组,对照组使用气管插管全身麻醉,观察组使用气管插管全身麻醉联合超声引导下腹横肌平面阻滞,比较两组患者术后静息及咳嗽时的疼痛情况、术后镇静程度、不同时间点血压及心率变化、不良反应情况。结果 在静息及咳嗽状态下,观察组出PACU时、术后4 h、术后24 h的VAS疼痛评分均明显低于对照组(P0.05);观察组入PACU后5 min、10 min、15 min的镇静评分低于对照组(P0.05),而入PACU后30 min的镇静评分无明显差异(P0.05);两组在术中及入PACU后各时间点的MAP无明显差异(P0.05),观察组在入PACU 10 min的心率慢于对照组(P0.05),其他时间点无明显差异(P0.05);观察组术后头痛、头晕、嗜睡、恶心呕吐、皮肤瘙痒、颤抖等不良反应发生率与对照组相比无明显差异(P0.05)。结论 超声引导下腹横肌平面阻滞在腹腔镜下胆囊切除术术后镇痛的疗效显著,对血流动力学影响小,安全性高,具有积极的临床意义。