【進手術房卻不真的開刀？假手術竟然也能改善膝蓋的問題？】
在研究上，有一種實驗方式是讓受試者分成兩組，一組接受正規的治療方式，另一組只是”假裝”接受正規的治療方式，但實際上卻沒有提供任何治療。當然在實驗過程中會設計讓受試者不知道自己到底真的有接受到治療，還是接受到無效的治療。
有趣的是，很多時候這類研究會發現，即便受試者接受到的是無效的治療，但他們還是會感覺到症狀有改善，而這樣的現象被稱作安慰劑效應。這在一些藥物、或是物理治療等研究上很常會使用到，但你知道手術竟然也可以，而且也有安慰劑效應嗎？
這次的影片要來跟大家分享的是芬蘭所發布的一篇為期五年的研究，針對退化性的半月板撕裂問題，接受手術與假手術是否對於症狀的改善程度有任何不同？
In research, there is an experimental method that participants are divided into two groups, one receives regular treatment, and the other just receives sham treatment. During the experiment, the sham treatment is made to resemble the real treatment. All of the participants and the researchers who assess the outcomes are blinded to the treatment assignment.
Interestingly, a lot of researches find those sham treatment groups also report positive outcomes; sometimes, their improvements are more significant than the regular one. This result is called placebo effect. This kind of experimental method is common in drugs or physiotherapy research, but do you know surgery is possible, and it could also have a placebo effect?
In this video, I’m going to share a 5 year follow-up of the sham surgery for degenerative meniscus tear research from Finland with you, and to see if there are any different results between groups.
Reference:
https://pubmed.ncbi.nlm.nih.gov/28522452/
https://pubmed.ncbi.nlm.nih.gov/32855201/
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