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.
目的探讨胸腔镜辅助肋骨内固定术治疗连枷胸的优势及合理性。 方法纳入我院2006年1月至2012年1月因外伤导致连枷胸行肋骨内固定手术40例患者，采用胸腔镜辅助对多发性肋骨骨折连枷胸行NiTi合金肋骨环抱器内固定术20例为胸腔镜辅助组，其中男14例、女6例，年龄（44.8±7.7）岁；常规开胸切口进胸探查暴露肋骨骨折并行NiTi合金肋骨环抱器内固定术20例为传统手术组，其中男15例、女5例，年龄（43.0±4.7）岁；比较两组临床结果。 结果与传统手术组相较，胸腔镜辅助组无再出血，患者能较早脱离呼吸机并适当活动，术后疼痛症状较轻，住院时间短，6个月后随访无慢性胸痛，伤侧胸部切口无麻木感。 结论胸腔镜辅助肋骨内固定术较常规开胸手术治疗多发性肋骨骨折有优势，值得推广。
目的 探讨胸外伤开胸探查的手术指征及救治策略。 方法 回顾性分析我院自 2006 年 1 月至 2014 年 12 月经开胸探查救治 51 例胸外伤患者的临床资料，其中男 43 例、女 8 例，年龄 24（17～75）岁。 结果 全组损伤严重度评分（ISS）平均 19.4 分。闭合性损伤 16 例，开放性损伤 35 例，治愈 45 例（88.24%），死亡 6 例（11.76%）。死亡原因为心脏破裂、失血性休克、感染性休克、多器官功能障碍综合征（MODS）、弥散性血管内凝血（DIC）。 结论 及时就医、快速诊断、准确把握手术指征、多科室联合诊治是救治胸外伤的关键。
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.
Pulmonary contusion is frequent and a serious injury in the chest trauma patients in emergency department. And it is easy to induce acute respiratory distress syndrome (ARDS) and respiratory failure. Since the development of modern technology and transportation, flail chest with pulmonary contusion happens more frequently than the past. And its complications and mortality are higher. In order to understand it better and improve the effect of the therapy on flail chest with pulmonary contusion, we reviewed the relative literatures. In this article, the main contents are as followed:① The pathophysiological changes of pulmonary contusion; ② The pathophysiological changes of flail chest with pulmonary contusion; ③ Clinical manifestation of flail chest with pulmonary contusion; ④ Imaging change of flail chest with pulmonary contusion; ⑤ progress in diagnosis and treatment.
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。
The incidence of rib fracture in patients with chest trauma is about 70%. Simple rib fractures do not need special treatment. Multiple rib fractures and flail chest are critical cases of blunt trauma, which often cause serious clinical consequences and need to be treated cautiously. Nowadays, there is a controversy about the diagnosis and treatment of multiple rib fractures and flail chest. In the past, most of the patients were treated by non-operative treatment, and only less than 1% of the patients with flail chest underwent surgery. In recent years, studies have confirmed that surgical reduction and internal fixation can shorten the hospital stay, and reduce pain and cost for patients with flail chest, but there is still a lack of relevant clinical consensus and guidelines for diagnosis and treatment, which leads to great differences in clinical diagnosis and treatment plans. This article reviewed the treatment, surgical indications and surgical timing of multiple rib fractures and flail chest.