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Objective <p>To evaluate the impact of rheumatoid arthritis (RA) on perioperative complications and hospital outcomes following reverse total shoulder arthroplasty (RTSA) using the National Inpatient Sample (2016–2021).</p> Methods <p>Adult patients undergoing RTSA were identified using ICD-10 procedure codes. Outcomes included prolonged length of stay (LOS), high hospital charges, inpatient complications, and mortality. Multivariable logistic regression adjusted for demographic, clinical, and hospital characteristics. Survey weights were applied to generate nationally representative estimates.</p> Results <p>A total of 389,135 patients underwent RTSA, including 18,140 (4.66%) with RA. In unadjusted analyses, RA patients had higher rates of prolonged LOS (17.8% vs. 14.8%) and acute blood loss anemia (10.7% vs. 8.6%).&#xa0;After multivariable adjustment, RA remained an independent predictor of prolonged LOS (adjusted OR 1.18, 95% CI 1.14–1.23, <i>p</i> &lt; 0.001) and acute blood loss anemia (adjusted OR 1.25, 95% CI 1.18–1.33, <i>p</i> &lt; 0.001), but not urinary tract infection. In-hospital mortality was rare and could not be modeled due to zero events in the RA group. RA patients also had slightly longer hospitalizations and higher hospital charges.</p> Conclusion <p>RA is independently associated with prolonged hospitalization and increased risk of perioperative blood loss anemia following RTSA. These findings highlight the need for targeted perioperative optimization and blood-management strategies in this high-risk population.</p>

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Impact of rheumatoid arthritis on complications and hospital outcomes following reverse shoulder arthroplasty: evidence from 389,135 hospitalizations in the national inpatient sample

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年6月14日

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  • Assil Mahamid,
  • Miri Elgabsi,
  • Muhammad Khatib,
  • Hamza Murad,
  • Feras Qawasmi,
  • Eitan Lavon,
  • Sana Zahalka,
  • Ali Yassin,
  • Mustafa Yassin

摘要

Objective

To evaluate the impact of rheumatoid arthritis (RA) on perioperative complications and hospital outcomes following reverse total shoulder arthroplasty (RTSA) using the National Inpatient Sample (2016–2021).

Methods

Adult patients undergoing RTSA were identified using ICD-10 procedure codes. Outcomes included prolonged length of stay (LOS), high hospital charges, inpatient complications, and mortality. Multivariable logistic regression adjusted for demographic, clinical, and hospital characteristics. Survey weights were applied to generate nationally representative estimates.

Results

A total of 389,135 patients underwent RTSA, including 18,140 (4.66%) with RA. In unadjusted analyses, RA patients had higher rates of prolonged LOS (17.8% vs. 14.8%) and acute blood loss anemia (10.7% vs. 8.6%). After multivariable adjustment, RA remained an independent predictor of prolonged LOS (adjusted OR 1.18, 95% CI 1.14–1.23, p < 0.001) and acute blood loss anemia (adjusted OR 1.25, 95% CI 1.18–1.33, p < 0.001), but not urinary tract infection. In-hospital mortality was rare and could not be modeled due to zero events in the RA group. RA patients also had slightly longer hospitalizations and higher hospital charges.

Conclusion

RA is independently associated with prolonged hospitalization and increased risk of perioperative blood loss anemia following RTSA. These findings highlight the need for targeted perioperative optimization and blood-management strategies in this high-risk population.