Frequency of symptoms related to neuropathic pain after surgery on postoperative month 2. The occurrence of allodynia, hypoesthesia and numbness were significantly lower in U-VATS group than in M-VATS group. *, P<0.05. PDQ, pain DETECT questionnaire. U-VATS, uniportal video-assisted thoracoscopic surgery; M-VATS, multi-port video-assisted thoracoscopic surgery.