Researchers investigated persistent postoperative pain in orthopedic hip, knee, and spinal surgeries, including 297 patients aged 55 years and older. At the one-year mark after their surgeries, 34.6% of patients reported persistent pain, with a mean score of 1.2 on a numerical rating scale. Factors associated with increased risk of persistent pain included lower preoperative bodily pain and higher preoperative C-reactive protein (CRP) levels.
Reference: Wang X, Ida M, Uyama K, Naito Y, et al. Persistent postoperative pain at 1 year after orthopedic surgery and its association with functional disability. J Anesth. 2023 Apr;37(2):248-253. doi: 10.1007/s00540-022-03156-2. Epub 2022 Dec 24. PMID: 36565365.
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