Woodward K L, Kenshalo D R
Plast Reconstr Surg. 1987 Mar;79(3):428-35. doi: 10.1097/00006534-198703000-00021.
Two cross-sectional studies were made of the recovery of tactile and pain sensitivity in subjects having skin flaps in the region of the chest and neck as a result of tumor excision. In experiment 1, stimuli ranging from 2.46 to 17.10 gm of force were delivered by von Frey hairs to the flaps and comparable normal sites in 35 subjects at times ranging from 1 month to 10 years after surgery. No subjects perceived stimuli of less than 11.80 gm, thermal, or moving touch applied to flaps, whereas 21 percent perceived 11.80 gm or greater force (judged as painful applied to normal skin). The results of experiment 2 showed that these findings were not due to visual information available to subjects. Possible explanations for the fact that these results are radically different from those reported in the literature are discussed.
对因肿瘤切除而在胸部和颈部区域进行皮瓣移植的受试者的触觉和疼痛敏感性恢复情况进行了两项横断面研究。在实验1中，在35名受试者术后1个月至10年的不同时间，用von Frey毛发将2.46至17.10克力的刺激施加于皮瓣及相应的正常部位。没有受试者能感知施加于皮瓣的小于11.80克力的刺激、热刺激或移动触摸，而21%的受试者能感知11.80克力或更大的力（施加于正常皮肤时判定为疼痛）。实验2的结果表明，这些发现并非由于受试者可获得的视觉信息。讨论了这些结果与文献报道的结果截然不同这一事实的可能解释。
