{
  "abstract": "Background and Aims The Perioperative Pain Service (POPS) at Hospital for Special Surgery (HSS) is a multidisciplinary team specializing in pain management in orthopedic surgical patients. Under POPS, the Chronic/Complex Pain Service (CPS) preoperatively identifies high-risk patients and tailors perioperative pain management plans while the Acute Pain Service (APS) is consulted during hospitalization for patient-controlled analgesia (PCA) when a patient experiences uncontrolled postsurgical pain without any previously known risk factors, or when surgeons pre-emptively request PCAs. The aim of this study was to map and compare acute pain trajectories in patients undergoing Total Knee Arthroplasty (TKA) with and without POPS involvement.Methods After IRB approval, adult patients undergoing unilateral total knee arthroplasty receiving neuraxial anesthesia between January 10th, 2022, to February 28th, 2025 at HSS were extracted from an institutional registry. Baseline patient characteristics, length of stay, and pain trajectories were generated from patients managed by APS, CPS, and without the pain team.Results A total of 11,760 TKA cases were identified; patients managed by CPS had a higher comorbidity burden for certain comorbidities, more frequently used prescription opioids and self-reported substance use preoperatively and had higher average hourly pain scores and incidences of severe pain over 72 hours postoperatively ( table 1 and figure 1). High-risk patients who received preoperative pain consults had lower acute pain scores (figure 2).Abstract EP012 Table 1Descriptive table for baseline patients’ characteristics, comorbidities, and pain scores and other outcomes by APS vs CPS vs Non-POPS among TKA patientsAbstract EP012 Figure 1(A) Hourly average pain scores in the first 72 hours post-TKA and (B) incidence rate for NRS pain scores >= 7 defined by every 2 hours in patients managed by the Acute Pain Service (APS), Complex Pain Service (CPS) and without the pain team (NonPOPS)Abstract EP012 Figure 2Average hourly acute pain scores in patients with complex pain managed by CPS during surgical admission and the impact of preoperative CPS pain consultationsConclusions Acute pain trajectories after TKA vary depending on pre-existing known and yet to be identified patient and surgical factors. Patients with complex/chronic pain experience more severe acute pain and preoperative pain consultations may modify the trajectory.",
  "authors": [
    {
      "affiliations": [
        "Pain Prevention Research Center (PPRC), Department of Anesthesiology, Critical Care and Pain Management, Hospital for Special Surgery, New York, USA",
        "Department of Anesthesiology, Weill Cornell Medicine, New York, USA"
      ],
      "name": "Faye Rim"
    },
    {
      "affiliations": [
        "Department of Anesthesiology, Critical Care and Pain Management, Hospital for Special Surgery, New York, USA"
      ],
      "name": "Junying Wang"
    },
    {
      "affiliations": [
        "Pain Prevention Research Center (PPRC), Department of Anesthesiology, Critical Care and Pain Management, Hospital for Special Surgery, New York, USA"
      ],
      "name": "William Chan"
    },
    {
      "affiliations": [
        "Department of Anesthesiology, Critical Care and Pain Management, Hospital for Special Surgery, New York, USA"
      ],
      "name": "Angelina Colamarino"
    },
    {
      "affiliations": [
        "Department of Anesthesiology, Weill Cornell Medicine, New York, USA",
        "Department of Anesthesiology, Critical Care and Pain Management, Hospital for Special Surgery, New York, USA"
      ],
      "name": "Daniel Maalouf"
    },
    {
      "affiliations": [
        "Pain Prevention Research Center (PPRC), Department of Anesthesiology, Critical Care and Pain Management, Hospital for Special Surgery, New York, USA",
        "Department of Anesthesiology, Weill Cornell Medicine, New York, USA"
      ],
      "name": "Jiabin Liu"
    },
    {
      "affiliations": [
        "Pain Prevention Research Center (PPRC), Department of Anesthesiology, Critical Care and Pain Management, Hospital for Special Surgery, New York, USA"
      ],
      "name": "Jashvant Poeran"
    },
    {
      "affiliations": [
        "Pain Prevention Research Center (PPRC), Department of Anesthesiology, Critical Care and Pain Management, Hospital for Special Surgery, New York, USA",
        "Department of Anesthesiology, Weill Cornell Medicine, New York, USA"
      ],
      "name": "Alexandra Sideris"
    }
  ],
  "title": "EP012 Acute pain trajectories in patients undergoing total knee arthroplasty managed by the perioperative pain service",
  "uid": "12ad5a5e-db64-51e7-87aa-a989eb880a95"
}