Table 4.
Baseline Relationship Between Clinical Pain and Pain Sensitivity in Participants with Signs and Symptoms of Carpal Tunnel Syndrome (CTS)
| Usual Pain | Temporal Summation | After Sensation | MP flexor retinaculum | MP brachioradialis | |
|---|---|---|---|---|---|
| Usual Pain | 1 | ||||
| Temporal Summation | 0.39 0.09 |
1 | |||
| After Sensation | 0.39 0.21 |
0.37 0.24 |
1 | ||
| MP flexor retinaculum | 0.13 0.58 |
0.15 0.53 |
0.88* <0.01 |
1 | |
| MP brachioradialis | 0.27 0.24 |
0.23 0.34 |
0.08 0.81 |
0.38 0.10 |
1 |
Associations between baseline measures of pain sensitivity and clinical pain intensity. Usual pain obtained with a 101 point numeric rating scale anchored with 0= “no pain at all” to 100= “the worst pain imaginable”. Participants were instructed to indicate their usual level of pain related to carpal tunnel syndrome during the past week. Measures of after sensation are provided only for participants who reported pain at 15 seconds following the final thermal pulse in the temporal summation protocol (n=12). MP= mechanical pain sensitivity to 2.3 kg of force.
*
= significant at p< 0.05.