Benjamin L Judkins1, Kevin A Hao2, Thomas W Wright3, Braden K Jones3, Andre P Boezaart4,5, Patrick Tighe4, Terrie Vasilopoulos4, MaryBeth Horodyski3, Joseph J King6. 1. Department of Orthopedic Surgery, Prisma Health - Upstate, Greenville, SC, USA. 2. College of Medicine, University of Florida, Gainesville, FL, USA. 3. Department of Orthopaedic Surgery and Sports Medicine, Orthopaedics and Sports Medicine Institute, University of Florida, 3450 Hull Road, Gainesville, FL, 32611, USA. 4. Department of Anesthesiology, University of Florida, Gainesville, FL, USA. 5. Lumina Health Pain Medicine Collaborative, Surrey, UK. 6. Department of Orthopaedic Surgery and Sports Medicine, Orthopaedics and Sports Medicine Institute, University of Florida, 3450 Hull Road, Gainesville, FL, 32611, USA. kingjj@ortho.ufl.edu.
Abstract
PURPOSE: Mixed modalities are frequently utilized in total shoulder arthroplasty (TSA) to control pain, improve patient satisfaction, reduce narcotics use and facilitate earlier discharge. We investigate the relationship between early postoperative pain control and long-term functional outcomes after shoulder arthroplasty. METHODS: A retrospective review identified 294 patients (314 shoulders) who underwent anatomic or reverse TSA and received a continuous cervical paravertebral nerve block perioperatively. Opioid and non-opioid analgesics were also available to the patients in an "as needed" capacity to augment perioperative pain control. In addition to demographic and surgical characteristics, the impact on functional outcomes of relative pain (i.e., a patient's subjective pain relative to the entire cohort), pain gradient (i.e., the slope of a patient's subjective pain), and opioid consumption during the first 24 h postoperatively were assessed. Shoulder function was assessed using validated outcome measures collected at 2 year follow-up. Outcomes were measured using American Shoulder and Elbow Surgeons questionnaire (ASES), Shoulder Pain and Disability Index (SPADI), SPADI-130, Raw and Normalized Constant Score, SST-12 and UCLA score. RESULTS: Patients younger than 65, females, reverse TSA, revisions, and preoperative opioid users had worse functional outcomes. On univariate analysis, increased pain perioperatively (> 50% percentile relative pain) was associated with decreased function at 2 years when analyzed with all seven outcome scores (P < .001 for all), reaching minimal clinically important difference (MCID) using the Constant Score. On multivariate analysis, increased pain in the first 24 h postoperatively (assessed on a continuous scale) was independently associated with worse ASES, SPADI, and SPADI-130 scores. Intraoperative ketamine administration and opioid consumption in the 24 h postoperative period did not influence long-term shoulder function. CONCLUSION: Patients reporting reduced pain after TSA demonstrated improved shoulder function with the Constant score at 2 years postoperatively in both univariate and multivariate analysis. Larger-scale investigation may be warranted to see if this is true for other functional outcome measures. LEVEL OF EVIDENCE: III, treatment study.
PURPOSE: Mixed modalities are frequently utilized in total shoulder arthroplasty (TSA) to control pain, improve patient satisfaction, reduce narcotics use and facilitate earlier discharge. We investigate the relationship between early postoperative pain control and long-term functional outcomes after shoulder arthroplasty. METHODS: A retrospective review identified 294 patients (314 shoulders) who underwent anatomic or reverse TSA and received a continuous cervical paravertebral nerve block perioperatively. Opioid and non-opioid analgesics were also available to the patients in an "as needed" capacity to augment perioperative pain control. In addition to demographic and surgical characteristics, the impact on functional outcomes of relative pain (i.e., a patient's subjective pain relative to the entire cohort), pain gradient (i.e., the slope of a patient's subjective pain), and opioid consumption during the first 24 h postoperatively were assessed. Shoulder function was assessed using validated outcome measures collected at 2 year follow-up. Outcomes were measured using American Shoulder and Elbow Surgeons questionnaire (ASES), Shoulder Pain and Disability Index (SPADI), SPADI-130, Raw and Normalized Constant Score, SST-12 and UCLA score. RESULTS: Patients younger than 65, females, reverse TSA, revisions, and preoperative opioid users had worse functional outcomes. On univariate analysis, increased pain perioperatively (> 50% percentile relative pain) was associated with decreased function at 2 years when analyzed with all seven outcome scores (P < .001 for all), reaching minimal clinically important difference (MCID) using the Constant Score. On multivariate analysis, increased pain in the first 24 h postoperatively (assessed on a continuous scale) was independently associated with worse ASES, SPADI, and SPADI-130 scores. Intraoperative ketamine administration and opioid consumption in the 24 h postoperative period did not influence long-term shoulder function. CONCLUSION: Patients reporting reduced pain after TSA demonstrated improved shoulder function with the Constant score at 2 years postoperatively in both univariate and multivariate analysis. Larger-scale investigation may be warranted to see if this is true for other functional outcome measures. LEVEL OF EVIDENCE: III, treatment study.
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