一、诊断
对烧伤怀疑合并骨关节损伤的伤员,早期诊断以病史、体征为主,如主诉疼痛、局部压痛、叩击痛。X线检查需在病人没有重要内脏伤和严重休克时进行,最好在急诊室内用小型X线摄像机在不搬动病人情况下摄片。X线片可确定骨折部位、类型,对诊断和治疗均有帮助。严重多发伤,特别是交通伤或其他挤压伤后,骨盆骨折发生率较高,骨盆骨折凭体征极易查出,表现为骨盆部畸形,耻骨联合、髂骨翼部的触痛,常伴有股骨上端或转子骨折。骨盆骨折本身多无致命危险,但骨折同时发生的盆腔脏器伤或后腹膜大血管伤、腹膜后血肿易漏诊,髂部血管伤后进行性腹膜后出血,常致伤员死亡。
二、急救
急救处理与单纯烧伤或骨关节伤大致相同。但注意后送时将伤肢妥善固定、伤口予以适当加压包扎,不要因烧伤而忽视。抗休克处理时输液和输血量亦应较单纯烧伤者为多,尤其是合并血管损伤大出血的伤员。
三、骨关节损伤的处理
一般应在休克被控制、全身情况稳定后再进行,但有大出血的伤员,必须立即手术;开放性骨关节伤者手术也应尽早实施。抗休克复苏的同时妥善固定伤肢,以减少疼痛,防止骨折移位造成的骨断端损伤血管,加重出血。
对局部皮肤无烧伤的骨关节伤处理,其方法与单纯骨关节损伤基本相同。
对局部皮肤有烧伤的骨关节伤,原则上无论烧伤面积大小,应在积极防治休克的同时,尽可能争取在伤后6~12h内进行清创。利用肌肉或应用局部皮瓣、肌皮瓣将骨折端封闭覆盖,同时削除或切除骨关节周围烧伤焦痂组织,游离移植自体皮或自异体皮混合移植,封闭创面。对合并大血管损伤者,应及早手术进行血管吻合、修补或自体静脉移植术,以挽救肢体。除非肢体已烧毁,否则不要轻易截肢。对合并头、面、颈和脊椎等特殊部位的骨关节伤,一般对其他创面的处理影响较小,可暂不作特殊处理。其处理方法大致如下:
1.大面积烧伤合并闭合性骨关节伤,一般早期不宜做过多的骨关节伤处理,只要伤情允许,深度烧伤创面争取早期切痂植皮,尤其骨关节损伤处优先考虑。至于骨折的处理方式依伤情而定,若伤员情况良好,切痂植皮同时采用切开复位内固定或外固定架固定。
2.小面积深度烧伤合并闭合性骨关节伤,最好一次全部切除坏死组织,应用大张自体皮游离移植或轴型皮瓣覆盖创面,术中视骨折情况行手法复位外固定或切开复位内固定。
3.小面积浅度烧伤合并闭合性骨关节伤,若能手法复位者,可采用复位后加压包扎,外用固定架固定,1周左右检查创面,若无创面感染征象,可固定至骨折基本愈合为止;若有感染迹象,应加强创面换药,有针对性地使用抗生素。不能手法复位者,如股骨骨折、小腿或前臂双骨折等,可考虑行骨牵引。牵引针尽可能避免通过烧伤创面,若必须经过创面,则进针处的局部深Ⅱ度或Ⅲ度创面应先削除烧伤组织,植自体皮后再进行,以减少感染的机会。
【典型病例】
患者:张某,男性,33岁。因车祸并起火伤及双上肢及左下肢。右上肢及胸部严重烧伤,表皮呈焦痂状,左上肢有多个散在伤口,有鲜血流出,左下肢疼痛剧烈、畸形并觉有骨擦感,活动受限。伤后曾在当地医院治疗,伤后2d转来我院。入院专科查体:右上肢除手掌部分掌面正常外,其余均为Ⅲ度烧伤创面,面积约为11%,外侧已切开减张,有较多的渗血渗液,运动较正常。左下肢肿胀畸形,左股骨中段,左胫腓骨中段、左尺桡骨远端压痛、伴有骨擦音及反常活动,左股骨髁上及跟骨持续牵引,力线良好,牵引重量分别为6kg和3kg,肢体远端血运良好,感觉正常,左上肢、左下肢及面部有多个散在的不规则皮肤挫裂伤口,已清创缝合。X线示:左股骨骨折、左胫腓骨骨折、左尺桡骨远端骨折伴有腕关节脱位。
入院诊断:①烧伤11%,Ⅲ度,右上肢及胸部;②多发骨折:左股骨、左胫腓骨、左尺桡骨远段骨折;③左腕关节脱位。
治疗过程:入院后根据其辅助检查结果,给予支持治疗并完善术前准备,行右上肢削痂植皮、右大腿取皮术,大张异体皮加微粒皮植皮术。术中,同时行左股骨、左胫腓骨骨折手法整复外固定架固定术,左尺桡骨骨折手法整复、外固定架固定术,术中在透视下对骨折进行手法整复,骨折对位良好,用外固定架经皮外固定,骨折稳定牢固。术后复查X线片示骨折均接近解剖对位。经过1周的严格规范治疗,病情得以明显好转。后经过复诊及追踪治疗显示病人恢复较好,骨折愈合速度正常,压痛消失,纵向叩击痛存在,皮肤挫裂伤痊愈。右上肢异体皮经过良好的护理,1个月左右异体皮排斥,微粒皮生长良好,创面完全愈合,肢体功能恢复良好。
治疗经验:患者由于为复合伤,急性失血较多(股骨骨折失血800~1000ml,胫腓骨骨折失血400~600ml,左尺桡骨骨折失血100~200ml)加上Ⅲ度烧伤的右上肢、胸部创面的渗出,同时机体消耗也增加,蛋白质合成减少或受限。在基层医院未予及时补充蛋白质等,致使患者来院时一般情况较差,呈低蛋白血症、贫血状态,经过加强支持治疗及足量补充蛋白质(白蛋白200g,悬浮红细胞16U,血浆2000ml)后一般状态才得以纠正,创造了手术条件。通过一次手术,同时完成切痂、微粒皮加大张异体皮覆盖,减少了创面的丢失,骨折给予了手法整复和牢固的外固定,达到了尽快封闭创面、缩短愈合时间的目的。
(柴家科 曹卫红 刘 伟)
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