Mapping the scientific landscape of robotic hernia repair: a bibliometric and topic modeling analysis of thematic transitions

Clinical Snapshot

Key Findings

• P Value: Not reported for thematic transition regression analyses; R² = 0.96 reported for growth curve fitting

• Effect Size: Publication growth R² = 0.96 for longitudinal trend modelling; peak annual output of 262 publications in 2025; US contribution n=892 (59.3% of corpus)

• Primary Outcome: Identification of four major research domains in robotic hernia repair literature via LDA topic modelling: (1) anatomical spectrum, (2) resource and risk management balance, (3) hardware evolution and surgical education, and (4) technical complexity with high-level evidence generation

• Nnt Or Sensitivity: Not applicable (bibliometric/meta-research study); thematic probability regression coefficients for longitudinal transitions not quantitatively reported in abstract

• Confidence Interval: Not reported

Clinical Application

The findings are directly applicable to research agenda-setting and funding prioritisation. The identified shift toward cost-effectiveness evaluation and RCT generation provides actionable direction for surgical trialists and health economists. Implementation of robotic hernia repair programmes requires institutional investment in training infrastructure, consistent with the 'Education' domain identified Australia is not identified among leading contributing nations, suggesting an opportunity for Australian surgical researchers to contribute to the evidence base. The identified priority of cost-effectiveness evaluation is highly relevant to the Australian context: robotic surgical systems (predominantly da Vinci platforms) are not currently PBS-subsidised for hernia repair, and TGA approval does not equate to Medicare reimbursement. RACGP and surgical college guidelines for hernia management do not yet specifically endorse robotic approaches over laparoscopic repair. The emphasis on value-based evaluation aligns with the Australian Commission on Safety and Quality in Health Care's focus on evidence-based surgical innovation. Australian health technology assessment through the Medical Services Advisory Committee (MSAC) would require precisely the kind of cost-effectiveness and high-quality RCT evidence this bibliometric study identifies as the current research frontier Surgeons, surgical researchers, health technology assessment bodies, and hospital administrators involved in robotic hernia repair programme development and research prioritisation

Abstract

Robotic hernia repair (RHR) has profoundly transformed modern surgery, yet it remains intensely debated. To understand this dynamic field, bibliometric analysis offers a powerful tool to evaluate its evolving research trends. Our study presents a comprehensive bibliometric and machine learning analysis of 1,503 publications from 2003 to 2025. The literature demonstrates a growth trend (R2 = 0.96), characterized by initial latency (2003-2015), steady adoption (2016-2020) and a recent exponential explosion (2020-2025) peaking at 262 publications in 2025. The United States is the leading contributing nation (n = 892), followed by Italy (n = 98), Germany (n = 71), and China (n = 68). Key contributors include Kudsi OY, Malcher F, and Muysoms F, with Surgical Endoscopy serving as the predominant publication venue (n = 203). Spatial and relational networks were mapped using VOSviewer and CiteSpace. Critically, Latent Dirichlet Allocation (LDA) topic modeling combined with principal component analysis (PCA) stratified the corpus into four major research domains comprising the anatomical spectrum, the balance between resource and risk management, hardware evolution and surgical education, and technical complexity coupled with high-level evidence. Longitudinal regression of thematic probabilities revealed a significant thematic transition in research emphasis from early hardware feasibility and technical exploration toward value-based evaluation. Current research priorities are increasingly focused on rigorous cost-effectiveness evaluation in high-risk populations together with the generation of high-quality randomized evidence. In conclusion, this multidimensional analysis illustrates how this field is increasingly guided by the interconnected domains of Evidence, Education and Economics, which align with established frameworks for sustainable surgical progress.

References

1. 1.Yuan, Y., Wang, L., Chen, L., Ke, Q., Chen, K., Li, Z., & Zheng, J. (2025). Mapping the scientific landscape of robotic hernia repair: a bibliometric and topic modeling analysis of thematic transitions. Journal of Robotic Surgery. https://doi.org/10.1007/s11701-025-02485-0