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Three-dimensional analysis of the gap space under forearm casts / 中华创伤杂志(英文版)
Chinese Journal of Traumatology ; (6): 77-82, 2022.
Article in English | WPRIM | ID: wpr-928472
ABSTRACT
PURPOSE@#Secondary displacement represents a frequent complication of conservative treatment of fractures, particularly of the distal radius. The gap space between skin and cast may lead to a certain degree movements and this increased mobility might favor redisplacement. The aim of this study was to develop a new 3D method, to measure the gap space in all 3 geometrical planes, and to validate this new technique in a clinical setting of distal radius fractures.@*METHODS@#This study applies 3D imaging to measure the space between plaster and skin as a potential factor of secondary displacement and therefore the failure of conservative treatment. We developed and validated a new methodology to analyze and compare different forearm casts made of plaster of Paris and fiberglass. An unpaired t-test was performed to document differences between the investigated parameters between plaster of Paris and fiberglass casts. The significance level was set at p < 0.05.@*RESULTS@#In a series of 15 cases, we found the width of the gap space to average 4 mm, being slightly inferior on the radial side. Comparing the two different casting materials, plaster of Paris and fiberglass, we found a significantly larger variance of space under casts made of the first material (p=0.39). A roughness analysis showed also a markedly significantly higher irregularity of the undersurface of plaster of Paris as compared with fiberglass.@*CONCLUSION@#This study allows for a better understanding of the nature of the "gap space" between cast and skin and will contribute to develop and improve new immobilization techniques and materials.
Subject(s)

Full text: Available Index: WPRIM (Western Pacific) Main subject: Radius / Radius Fractures / Wrist Joint / Casts, Surgical / Forearm Limits: Humans Language: English Journal: Chinese Journal of Traumatology Year: 2022 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Main subject: Radius / Radius Fractures / Wrist Joint / Casts, Surgical / Forearm Limits: Humans Language: English Journal: Chinese Journal of Traumatology Year: 2022 Type: Article