Thanh N H, Poetsma P A, Jensen J Steen
International Society for Prosthetics and Orthotics, Copenhagen, Denmark.
Prosthet Orthot Int. 2009 Jun;33(2):130-4. doi: 10.1080/03093640802676457.
A sand-casting technique for transtibial sockets was applied to 28 amputees in 2005. Although this meant an improvement in the quality of fitting as compared to historical reports with plaster of Paris casting, a total contact required three (two to five) stump socks. Continuing research leads the inventor, Dr Y. Wu, to replace the sand with micro polystyrene beads and simplify the equipment by eliminating the need for fluidization of silica sand by an air compressor during casting of the amputation stump. In a pilot series of 10 transtibial amputees, socket casting was performed with the new CIR casting technique and compared with the former sand-casting technique conducted by the same Category-I prosthetist. It was possible to obtain a good fit in eight out of 10 cases, which is an improvement from 19 out of 28 in the old series. Furthermore, there was a highly significant reduction in circumference measurements on the positive model with the new technique as compared to sand-casting.
2005年，一种用于经胫骨接受腔的砂型铸造技术应用于28名截肢者。尽管与使用巴黎石膏铸造的历史报告相比，这意味着贴合质量有所提高，但完全贴合需要三双（两到五双）残肢袜。持续的研究促使发明者吴博士用微聚苯乙烯珠代替沙子，并通过在截肢残肢铸造过程中省去空气压缩机使硅砂流化的需求来简化设备。在一个由10名经胫骨截肢者组成的试验系列中，使用新的CIR铸造技术进行接受腔铸造，并与同一位一级假肢师采用的原砂型铸造技术进行比较。10例中有8例能够获得良好的贴合效果，这比旧系列的28例中的19例有所改善。此外，与砂型铸造相比，新技术在阳模上的周长测量值有极显著的降低。
