McBride Craig A, Kempf Margit, Kimble Roy M, Stockton Kellie
Pegg Leditschke Children's Burns Centre, Department of Paediatric Surgery, Children's Health Queensland Hospital and Health Service, Queensland, Australia; Centre for Children's Burns and Trauma Research, Queensland Children's Medical Research Institute, University of Queensland, Australia.
Pegg Leditschke Children's Burns Centre, Department of Paediatric Surgery, Children's Health Queensland Hospital and Health Service, Queensland, Australia; Centre for Children's Burns and Trauma Research, Queensland Children's Medical Research Institute, University of Queensland, Australia.
Burns. 2017 Nov;43(7):1552-1560. doi: 10.1016/j.burns.2017.02.010. Epub 2017 Aug 8.
Split-thickness skin grafts (STSG) taken using calibrated powered dermatomes are assumed to yield a graft of uniform thickness, though this assumption has never been analysed statistically. This study aims to test that assumption in a paediatric population.
STSGs from a consecutive cohort of paediatric patients were analysed for mean thickness, measured from a central biopsy. All STSGs were taken from the thigh at a dialled thickness of 0.007in. Data were analysed using non-parametric methods.
There were 140 STSGs taken from 91 children. The median thickness was 6.94 thousandths of an inch, with a spread of thicknesses about this median (IQR 5.05-9.28). There were no significant differences when results were analysed by surgeon, patient age or gender, swipe number within the case, or the number of previous passes with the same blade.
STSG thickness is inconsistent, with a broad spread about a median value. This study provides no data to suggest there are pre-operative predictors of STSG thickness being significantly more or less than that dialled on a powered dermatome.
尽管从未对该假设进行过统计学分析，但使用校准的电动取皮刀获取的中厚皮片（STSG）被认为能产生厚度均匀的皮片。本研究旨在在儿科人群中验证这一假设。
对连续队列的儿科患者的中厚皮片进行分析，通过中央活检测量其平均厚度。所有中厚皮片均取自大腿，设定厚度为0.007英寸。使用非参数方法分析数据。
从91名儿童身上获取了140块中厚皮片。中位厚度为6.94千分之一英寸，厚度围绕该中位值分布（四分位间距为5.05 - 9.28）。按外科医生、患者年龄或性别、病例内的划动次数或同一刀片之前的划动次数分析结果时，均无显著差异。
中厚皮片厚度不一致，围绕中位值有较大分布范围。本研究未提供数据表明存在术前预测因素可使中厚皮片厚度显著高于或低于电动取皮刀设定的厚度。
