The John N. Insall Award: Does Melatonin Improve Subjective Sleep Quality After Total Knee Arthroplasty? A Randomized, Placebo-Controlled Trial

褪黑素 睡眠质量 安慰剂 全膝关节置换术 随机对照试验 医学 睡眠(系统调用) 物理疗法 关节置换术 物理医学与康复 麻醉 内科学 计算机科学 外科 替代医学 精神科 失眠症 病理 操作系统
作者
Drake G. LeBrun,Jacqueline Grubel,Justin Ong,Yu-Fen Chiu,Jason L. Blevins,Steven B. Haas,José A. Rodríguez,Elizabeth B. Gausden,Fred D. Cushner,Gwo‐Chin Lee,Alejandro González Della Valle,Brian P. Chalmers
出处
期刊:Journal of Arthroplasty [Elsevier BV]
卷期号:39 (8): S15-S21 被引量:8
标识
DOI:10.1016/j.arth.2024.01.018
摘要

Sleep disturbance is a common problem following total knee arthroplasty (TKA). The objective of this study was to determine if exogenous melatonin improves sleep quality following primary TKA.A randomized, double-blind, placebo-controlled trial was conducted. A total of 172 patients undergoing unilateral TKA for primary knee osteoarthritis were randomized to receive either 5 mg melatonin (n=86) or 125 mg vitamin C placebo (n=86) nightly for 6 weeks. The primary outcome was the Pittsburgh Sleep Quality Index (PSQI) at 6 weeks and 90 days postoperatively. Secondary outcomes included 6-week and 90-day patient-reported outcome measures (PROMs), morphine milligram equivalents (MMEs) prescribed, medication compliance, adverse events, and 90-day readmissions.Mean PSQI scores worsened at 6 weeks before returning to the preoperative baseline at 90 days in both groups. There were no differences in PSQI scores between melatonin and placebo groups at 6 weeks (10.2±4.2 versus 10.5±4.4, P=0.66) or 90 days (8.1±4.1 versus 7.5±4.0, P=0.43). Melatonin did not improve the Knee Injury and Osteoarthritis Outcome Score for Joint Replacement (KOOS-JR), Lower Extremity Activity Scale (LEAS), Visual Analog Scale (VAS) for pain, or Veterans Rand 12 (VR-12) Physical Component Score (PCS) or Mental Component Score (MCS) at 6 weeks or 90 days. Poor sleep quality was associated with worse PROMs at 6 weeks and 90 days on univariate and multivariable analyses, but melatonin did not modify these associations. There were no differences in MMEs prescribed, medication compliances, adverse events, or 90-day readmissions between both groups.Exogenous melatonin did not improve subjective sleep quality or PROMs at 6 weeks or 90 days following TKA. Poor sleep quality was associated with worse patient-reported function and pain. Our results do not support the routine use of melatonin after TKA.
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