Enwemeka C S
Scand J Rehabil Med. 1986;18(2):47-9.
The accuracy of knee goniometry was examined by comparing goniometric measurements with radiographic bone angle measurements of six positions of the knee, namely, 0 degree, 15 degrees, 30 degrees, 45 degrees, 60 degrees, and 90 degrees. Within the first 15 degrees of knee flexion joint excursion measured by goniometry differed significantly from bone angle measurement (p less than 0.01). With 30 degrees of knee flexion or more, no significant difference was found between goniometric measurements and bone angle measurements of knee motion. These findings suggest that within the first 15 degrees of knee flexion, goniometric measurement of joint excursion may be remarkably wrong. On account of this, it was suggested that when range of motion is limited at the knee joint, caution should be exercised in determining movement gains or losses within the initial 15 degrees of knee flexion.
通过将膝关节测角法测量结果与膝关节六个位置（即0度、15度、30度、45度、60度和90度）的X线骨角度测量结果进行比较，来检验膝关节测角法的准确性。在通过测角法测量的膝关节屈曲关节活动的前15度范围内，测量结果与骨角度测量结果存在显著差异（p小于0.01）。当膝关节屈曲30度或更多时，膝关节活动的测角法测量结果与骨角度测量结果之间未发现显著差异。这些发现表明，在膝关节屈曲的前15度范围内，关节活动的测角法测量可能存在明显误差。因此，有人建议，当膝关节活动范围受限 时，在确定膝关节屈曲初始15度范围内的活动增加或减少时应谨慎。
