目的 通过对连枷胸两种不同治疗方法的比较,探讨该病的优化治疗方案。 方法 将2005年1月-2012年11月收治的80例枷胸患者按入选标准分为:保守组40例,通过胸部外固定和(或)呼吸机内固定等方法治疗;手术组40例,采用镍钛记忆合金环抱式接骨器手术内固定骨折的肋骨,比较两种治疗方法和疗效及并发症情况。 结果 保守组和手术组各死亡3例,原因为呼吸道感染致呼吸衰竭,两组无差异,但ICU停留和住院天数、机械通气时间、呼吸道感染等并发症手术组明显低于保守组(P<0.01)。手术组无胸壁畸形,而保守组有18例,两组比较差异有统计学意义(P<0.01)。出院3个月后,手术组患者部分肺功能指标显著优于保守组(P<0.01)。 结论 手术治疗连枷胸可迅速稳定胸壁,消除反常呼吸和激烈疼痛对呼吸的影响,还可减轻连枷胸对患者远期肺功能的影响,具有较高的临床应用价值。
目的探讨同种异体骨对多发性肋骨骨折内固定的治疗疗效。 方法回顾性分析我院2011年1月至2013年9月多发性肋骨骨折40例患者的临床资料,其中男33例、女7例,年龄23~67岁。 结果全组无1例死亡,手术时间为55~120 min,出血量30~120 ml,骨折矫形效果满意,浮动胸壁控制良好,反常呼吸消失,胸廓塑形满意,活动后疼痛减轻。随访3~24个月,内固定材料无明显移位、无折断,无明显急性或慢性排异反应,无骨折不愈合或延迟愈合,近远期无严重并发症发生。 结论用同种异体冻干骨对多发性肋骨骨折进行内固定治疗安全、有效。
Objective To evaluate clinical efficacy of four-claw Ti-planes for internal fixation of multiple rib fractures and flail chest. Methods Clinical data of 93 patients with multiple rib fractures and flail chest who were admittedto Shanghai Pudong Hospital from December 2011 to November 2012 were retrospectively analyzed. There were 78 male and 15 female patients with their age of 20-80 years. All the patients received internal fixation of rib fractures using four-clawTi-planes. Finite element modeling and analysis were performed to investigate biomechanical behaviors of rib fractures after internal fixation with four-claw Ti-planes. Results The average number of rib fractures of the 93 patients was 5.9±2.1,and each patient received 3.8±1.3 four-claw Ti-planes for internal fixation. The operations were performed 6.3±3.2 days after admission. After the rib fractures were fixed with four-claw Ti-planes,rib dislocations and chest-wall collapse of flail chest were restored,and patients’ pain was relieved. Postoperative CT image reconstruction of the chest showed no dislocationor displacement at the fixation areas of the four-claw Ti-planes. Rib fractures were stabilized well,and normal contours of the chest were restored. Finite element analysis showed that the maximum bearable stress of the rib fractures after internal fixation with four-claw Ti-planes was twice as large as normal ribs. Conclusion Clinical outcomes of four-claw Ti-planesfor internal fixation of rib fractures are satisfactory with small incisions and less muscle injury of the chest wall,so this technique deserves wide clinical use.
Objective To explore the feasibility of establishing a rabbit model of flail chest. Methods Flail chest model was eatablished in 12 New Zealand white rabbits after anesthesia and sterile surgery. The paradoxical movement of chest wall was recorded by the biological signal acquisition system, arterial blood was collected for blood gas analysis, the vital signs were recorded by electrocardiogram (ECG) and the lung tissue was taken for the pathological analysis at the end of the experiment. The effect of flail chest on the respiratory function of experimental animals was analyzed to evaluate the feasibility of establishing flail chest model. Results All surgeries were successful without mortality. The operation time was 41.42±7.08 min. Duration of endotracheal intubation was 79.33±12.21 min. Statistical results showed that the pH, partial pressure of arterial carbon dioxide (PaCO2) and base excess (BE) increased; while partial pressure of oxygen (PaO2) and oxygen saturation (SaO2) reduced. Pathological results showed that flail chest not intervented for a long period would lead to organic lesions. Conclusion The rabbit model of flail chest is feasible, safe, repeatable, easy and simple to handle. The animal is easy to access which is the foundation to study the disease process, recovery procedure and the efficacy after intervention.