Department of Orthopaedics, Raigmore Hospital, Inverness, Scotland, UK.
Surgeon. 2012 Dec;10(6):339-41. doi: 10.1016/j.surge.2011.09.005. Epub 2011 Nov 11.
Cotton crêpe and stretch bandages are commonly used in back-slabs and casts in orthopaedic practice. In theory they allow swelling to occur after injury while splinting the fracture. The application of a wet bandage prevents the Plaster-of-Paris (POP) setting too rapidly, giving time to apply a mould or attain correct limb position. However, we hypothesised that a wet bandage contracts upon drying and may cause constriction of the splint. This study aimed at determining whether there was any significant change in length of commonly used bandages when wet as well as any further change when left to dry again. Two types of bandage were evaluated. 250 mm strips of bandage were dipped into water, gently squeezed and laid flat on a bench. The bandage was then immediately measured in length. The strips were then left to dry and re-measured. This experimental study shows that both cotton crepe and cling significantly shrink by around 7% when wet. This phenomenon has the potential to significantly increase the pressure exerted on the limb by a back-slab. We speculate that the application of wet bandages is why some back-slabs may need released. It is therefore recommended that bandages should be applied only in the dry form.
棉质绉布和弹性绷带在矫形实践中常用于背板和石膏。理论上，它们可以在夹板骨折的同时允许受伤后肿胀。湿绷带的应用可防止熟石膏（POP）过快凝固，有时间上模具或达到正确的肢体位置。然而，我们假设湿绷带在干燥时会收缩，可能会导致夹板的收缩。本研究旨在确定常用绷带在湿润时的长度是否有任何显著变化，以及再次干燥时是否有进一步的变化。评估了两种类型的绷带。将 250 毫米宽的绷带条浸入水中，轻轻挤压，然后平放在长凳上。然后立即测量绷带的长度。然后让绷带干燥并重新测量。这项实验研究表明，棉质绉布和粘性绷带在湿润时都会收缩约 7%。这种现象有可能显著增加背板施加在肢体上的压力。我们推测，湿绷带的应用是为什么有些背板可能需要松开。因此，建议绷带仅以干燥形式应用。
