As obesity rates continue to rise, understanding the long-term impact of body mass index (BMI) on outcomes following reverse total shoulder arthroplasty (rTSA) is increasingly important. While prior studies have yielded conflicting results, limited data exist on functional outcomes beyond five years postoperatively. A recent study found that BMI does not increase the risk of complications after rTSA.1
The rising prevalence of obesity in the United States necessitates a clearer understanding of its implications for surgical outcomes, particularly in procedures like reverse total shoulder arthroplasty (rTSA). Previous research has presented inconsistent findings regarding the relationship between BMI and post-operative complications, with a notable lack of long-term data extending beyond five years.1 This gap in evidence has left clinicians without definitive guidance on how to counsel patients with elevated BMI regarding rTSA risks and prognoses.
What the study did
A study published in J Orthop in 2025 investigated the impact of body mass index on the risk of complications following reverse total shoulder arthroplasty.1 The research aimed to clarify whether BMI contributes to an increased risk of adverse outcomes after this specific surgical procedure.1 The authors noted the increasing importance of this topic given the rising obesity rates and the conflicting results from earlier studies.1
The study focused on the relationship between BMI and the incidence of complications after rTSA.1 While the abstract does not detail the specific methodology, patient numbers, or follow-up duration, it explicitly states the primary finding.1
Key Findings
The study concluded that body mass index does not increase the risk of complications after reverse total shoulder arthroplasty.1 This finding suggests that BMI, often a concern in surgical planning due to its association with various comorbidities, may not be a direct predictor of adverse events in the context of rTSA.1 The authors highlighted the importance of understanding long-term impacts, though the specific duration of follow-up beyond five years was not detailed in the abstract.1
The implication of this finding is that surgical teams may need to re-evaluate the weight given to BMI as an isolated risk factor for complications in patients undergoing rTSA.1 This could potentially broaden the eligibility for surgery or alter pre-operative risk stratification strategies for patients with higher BMIs.
This finding from Capotosto et al. challenges a common assumption in orthopaedic surgery: that higher BMI inherently translates to higher complication rates for all procedures. For clinicians, this means that BMI alone should not be an automatic disqualifier or a primary determinant of risk for patients considering reverse total shoulder arthroplasty. Instead, a more nuanced assessment of overall patient health, comorbidities, and functional goals may be warranted, moving beyond a singular focus on BMI as a proxy for surgical risk.
The industry, particularly manufacturers of orthopaedic implants and surgical tools, might find this data useful in expanding their market reach. If BMI is less of a barrier, more patients could be candidates for rTSA, potentially increasing demand for these devices. However, it is crucial that this finding does not lead to a relaxation of other important pre-operative assessments. The absence of increased complication risk from BMI does not negate the impact of other obesity-related comorbidities like diabetes or cardiovascular disease, which still require careful management.
For patients, this news offers a degree of reassurance. Those with elevated BMIs who require rTSA may feel less stigmatized or discouraged from pursuing a necessary procedure. It underscores the importance of discussing individual risk factors with their surgeon rather than relying on generalized assumptions about BMI. This study, while limited by its abstract format, provides a starting point for a more evidence-based conversation about surgical candidacy in the context of obesity.
- The Pivot BMI, often considered a risk factor, was not associated with increased complications after reverse total shoulder arthroplasty.
- The Data The study found no increased risk of complications related to BMI after rTSA.
- The Action Clinicians should consider that BMI alone may not be a contraindication or significant risk factor for adverse outcomes in patients undergoing rTSA.
ART-2026-213
Cite This Article
Team TLSFE. Bmi does not increase complication risk after reverse total shoulder arthroplasty. The Life Science Feed. Updated June 9, 2026. Accessed June 9, 2026. https://thelifesciencefeed.com/endocrinology/obesity/research/bmi-does-not-increase-complication-risk-after-reverse-total-shoulder-arthroplasty.
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References
1. Capotosto S, White C, Yu J. Body mass index does not increase risk of complications after reverse total shoulder arthroplasty. J Orthop. 2025.
