Measurement of the consistency of patellar-tendon-bearing cast rectification
Measurement of the consistency of patellar-tendon-bearing cast rectification
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DOI：
10.1080/03093640308726683
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发表时间：
2003-12-01
影响因子：
1.5
通讯作者：
McHugh, B
中科院分区：
文献类型：
--
作者：
Convery, P;Buis, AWP;McHugh, B
经胫骨髌骨肌腱支承（PTB）承窝的配合质量可能会受到铸造、矫正或对线一致性的影响。本文首次量化了两名经验丰富的假肢专家之间的矫正模型的变化以及每个假肢专家的矫正模型之间的变化。假肢专家A和B观察了一个典型的经胫骨截肢者的手模型。每位修复师提供5个先前测量的复制石膏模型。两名修复师根据他们自己对基本矫正指南的解释矫正了提供的石膏模型。两名假肢专家都是单独进行手术的。将重新测量的校正石膏模型数据与未校正的数据进行比较。计算了每个石膏模型1800个位置的矫正程度。在主要矫正区，修复师之间的平均差异量化为2 mm，每个修复师的平均值的标准差（SD）为+/-1mm。10个改良模型的腓骨头顶点坐标表明，最大的变化是在轴向，修复师A的SD为4.3min，修复师B的SD为2.8mm。修复师A矫正的5个石膏模型长度的SD为0.2mm，修复师B矫正的5个石膏模型长度的SD为2.9mm。
The quality of fit of a trans-tibial patellar-tendon-bearing (PTB) socket may be influenced by consistency in casting, rectification or alignment. This paper quantifies, for the first time, the variations in the rectified casts between two experienced prosthetists and the variation between the rectified casts of each individual prosthetist.Prosthetists A and B observed the hand casting of a typical trans-tibial amputee. Each prosthetist was supplied with 5 previously measured duplicated plaster models. The two prosthetists rectified the supplied plaster models based on their own interpretation of basic rectification guidelines. Both prosthetists operated in isolation. The re-measured rectified plaster model data was compared with the unrectified data. The extent of rectification at each of 1800 locations per plaster model was calculated. In zones of major rectification, the mean difference between prosthetists was quantified as 2mm and the standard deviation (SD) about that mean was +/-1mm for each prosthetist.The co-ordinates of the apex of the fibular head for the 10 modified casts indicated that the maximum variation was in the axial direction with a SD of 4.3min for prosthetist A and a SD of 2.8mm for prosthetist B. The lengths of the 5 plaster models rectified by prosthetist A indicated a SD of 0.2mm, whereas the lengths of the 5 plaster models rectified by prosthetist B indicated a SD of 2.9mm.