Marson B M, Keenan M A
Department of Orthopaedic Surgery, Albert Einstein Medical Center, Philadelphia, Pennsylvania 19141.
J Orthop Trauma. 1993;7(3):275-8. doi: 10.1097/00005131-199306000-00013.
Electronic sensors were used to measure skin surface pressures beneath plaster and fiberglass short leg casts. Pressures were recorded after casting, univalving, bivalving, and spreading of casts. Fiberglass resulted in significantly higher pressures than plaster. Beneficial effects of bivalving and cast spreading are confirmed by significant pressure drops. Application of casts by different orthopaedic surgeons and technologists showed pressure differences due to operator technique. However, fiberglass pressures again proved to be significantly greater than those caused by plaster. Excessive pressure beneath casts can cause skin ulceration, and results confirm the need for extreme care, especially when using fiberglass. It is suggested that plaster is safer than fiberglass when significant extremity swelling is likely or when a patient's skin is more vulnerable to breakdown.
使用电子传感器测量石膏和玻璃纤维短腿石膏下的皮肤表面压力。在打石膏、单瓣切开、双瓣切开和撑开石膏后记录压力。玻璃纤维导致的压力明显高于石膏。双瓣切开和石膏撑开的有益效果通过显著的压力下降得到证实。不同骨科医生和技术人员打石膏时，因操作技术导致压力存在差异。然而，玻璃纤维导致的压力再次被证明明显高于石膏导致的压力。石膏下的压力过大可导致皮肤溃疡，研究结果证实需格外小心，尤其是使用玻璃纤维时。建议在肢体可能出现明显肿胀或患者皮肤更容易破损时，石膏比玻璃纤维更安全。
