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Abstract：
After total knee arthroplasty (TKA), approximately 20% of patients experience persistent postoperative pain (PPP). Although preoperative and postoperative pain intensity is a relevant factor, more detailed description of pain is needed to determine specific intervention strategies for clinical conditions. This study aimed to clarify the associations between preoperative and postoperative descriptions of pain and PPP. Fifty-two TKA patients were evaluated for pain intensity and description of pain preoperatively and 2 weeks postoperatively, and the intensities were compared. In addition, the relationship between pain intensity and PPP at 3 and 6 months after surgery was analyzed using a Bayesian approach. Descriptions of arthritis (\"Throbbing\" and \"aching\") improved from preoperative to 2 weeks postoperative. Several preoperative (\"Shooting\", \"Aching\", \"Caused by touch\", \"Numbness\") and postoperative (\"Cramping pain\") descriptors were associated with pain intensity at 3 months postoperatively, but only \"cramping pain\" at 2 weeks postoperatively was associated with the presence of PPP at 3 and 6 months postoperatively. In conclusion, it is important to carefully listen to the patient\'s complaints and determine the appropriate intervention strategy for the clinical condition during perioperative pain management.
摘要：
全膝关节置换术（TKA）后，约20%的患者经历持续性术后疼痛(PPP).尽管术前和术后疼痛强度是相关因素,需要对疼痛进行更详细的描述,以确定针对临床病症的具体干预策略.本研究旨在阐明术前和术后疼痛描述与PPP之间的关联。对52例TKA患者进行了术前和术后2周的疼痛强度和疼痛描述评估，并对强度进行了比较。此外,采用贝叶斯方法分析术后3个月和6个月疼痛强度与PPP之间的关系.从术前到术后2周，关节炎的描述（“抽搐”和“疼痛”）有所改善。术前几个（“射击”，\"Aching\",\"触摸引起\"，“麻木”）和术后（“痉挛疼痛”）描述符与术后3个月的疼痛强度相关，但只有术后2周时的“痉挛疼痛”与术后3个月和6个月时的PPP相关。总之,在围手术期疼痛管理过程中，仔细倾听患者的主诉，并针对临床情况确定适当的干预策略是很重要的。
