Dellon E S, Mourey R, Dellon A L
Division of Plastic Surgery, Johns Hopkins University, Baltimore, MD.
Plast Reconstr Surg. 1992 Jul;90(1):112-7. doi: 10.1097/00006534-199207000-00017.
Despite the need to evaluate sensibility for accurate diagnosis and the need to record the degree of sensation achieved in the postoperative period, the clinician has been without the ability to measure human pressure perception accurately. Traditionally, the Semmes-Weinstein monofilaments were used to measure the static one-point discrimination threshold. A new sensory testing instrument, the Pressure-Specifying Sensory Device, was used to obtain normative data from the index and little finger of the dominant hand in 35 people ranging in age from 16 to 83 with no known neurologic impairment. Pressure perceptions for static one- and two-point discrimination (s1PD, s2PD) and moving one- and two-point discrimination (m1PD, m2PD) were recorded. The mean values (+/- SD) were 0.13 +/- 0.06, 0.24 +/- 0.12, 0.22 +/- 0.10, and 0.26 +/- 0.13 gm/mm2 for s1PD, s2PD, m1PD, and m2PD, respectively, on the index finger and 0.07 +/- 0.05, 0.16 +/- 0.12, 0.17 +/- 0.07, and 0.21 +/- 0.14 gm/mm2 for s1PD, s2PD, m1PD, and m2PD, respectively, for the little finger. The little finger was significantly more sensitive than the index finger (p less than 0.001). There was no significant change in pressure perception with increasing age.
尽管准确诊断需要评估感觉功能，且术后需要记录所达到的感觉程度，但临床医生一直无法准确测量人体的压力感知。传统上，使用Semmes-Weinstein单丝来测量静态单点辨别阈值。一种新的感觉测试仪器——压力指定感觉装置，用于从35名年龄在16至83岁之间、无已知神经功能障碍的优势手的示指和小指获取标准数据。记录了静态一点和两点辨别（s1PD、s2PD）以及动态一点和两点辨别（m1PD、m2PD）的压力感知。示指上s1PD、s2PD、m1PD和m2PD的平均值（±标准差）分别为0.13±0.06、0.24±0.12、0.22±0.10和0.26±0.13 gm/mm2，小指上s1PD、s2PD、m1PD和m2PD的平均值分别为0.07±0.05、0.16±0.12、0.17±0.07和0.21±0.14 gm/mm2。小指比示指明显更敏感（p<0.001）。随着年龄增长，压力感知没有显著变化。
