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Rehabilitation Practice and Science

Translated Title

使用水平測量儀及紙張厚度校正法測量功能性下肢長度差異

Abstract

The objective of this study is to determine the reliability and validity of a clinical measurement for functional leg-length discrepancy (LLD) using the level and paper thickness correction (LPC) method to determine intra-rater and inter-rater reliability and validity. We induced a simulated LLD (5-30 mm) for each subject twice in a block-simulating group (n=17), none of whom had an apparent LLD. The X-ray group (n=7), who had LLD, were measured using radiographs to measure the LLD. The examiner performed the LPC method in both groups by adjusting the bilateral height of the top iliac crest margin via the level and correcting the identified differences by adding some sheets of paper. The paper thickness correction was measured using dial calipers. The reliability of the LLD measurement (n=18) was determined using the LPC method to measure the LLD. block-simulation validity (n = 17) was performed by comparing the LPC measurement with the extent of the induced LLD. X-ray validity (n=7) used the difference in heights of the superior aspect of the iliac crest from standing radiographs. The intra-class correlation coefficients (ICCs) for the intra-rater and inter-rater reliability were .88 and .94, respectively. The Pearson r for the block-simulation and X-ray validities were .94 and .90, respectively. The LPC technique for measuring LLD is highly reliable and valid. We recommend using this method to measure and quantify the LLD when there is no history of pelvic deformity and the iliac crests can be readily palpated.

Language

Traditional Chinese

First Page

187

Last Page

194

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