Abstract
[Purpose] Complex regional pain syndrome (CRPS) is considered to occur due to an inconsistency between the visual and somatic senses (multiple senses). The lower extremity is a part of the body, which is difficult to visually control. This paper reports a case of lower-extremity CRPS, in which symptom improvement by multisensory integration was insufficient, but it was promoted by integrating the somatic sense (unisensory approach). [Subjects and Methods] A patient with bilateral lower-extremity CRPS performed multi- and unisensory integration tasks for 2 months, respectively. During each period, the correct answer rate and changes in the symptoms were recorded. [Results] Symptom improvement was insufficient despite a correct answer rate of 100% when performing the multisensory integration task. In contrast, the subsequent unisensory approach promoted the improvement. [Conclusion] Intervention based on unisensory integration may be effective for lower-extremity CRPS.
