Varley G W, Milner S, Turner G M, Crisp A J, Szypryt E P
Department of Fracture and Orthopaedic Surgery, University Hospital, Queen's Medical Centre, Nottingham, UK.
J R Coll Surg Edinb. 1994 Apr;39(2):97-9.
We report the use of ultrasound in the assessment of the efficacy of wound drains in preventing wound haematoma. 171 patients with proximal femoral fractures who underwent AO dynamic hip screw or hemiarthroplasty were randomized as to whether or not they should receive wound drainage. Patients then underwent ultrasound examination on the 5th postoperative day to localize and quantify any wound haematomas. Results show that drains are effective in preventing wound collections, but only while in situ; following the removal of drains the size of resulting wound collections is the same whether the wound has been drained or not (Student's t-test; t = 0.19, NS). This study questions current theories on the mechanisms by which wound drainage is thought to influence wound healing.
我们报告了超声在评估伤口引流管预防伤口血肿疗效方面的应用。171例接受AO动力髋螺钉或半髋关节置换术的股骨近端骨折患者，被随机分为是否接受伤口引流组。患者在术后第5天接受超声检查，以定位和量化任何伤口血肿。结果表明，引流管在预防伤口积液方面是有效的，但仅在其在位时有效；引流管拔除后，无论伤口是否已引流，所形成的伤口积液大小相同（Student t检验；t = 0.19，无显著性差异）。本研究对目前关于伤口引流影响伤口愈合机制的理论提出了质疑。
