Bibliometric analysis of the top 100 most-cited articles on tissue expander use in breast reconstruction: insights from CiteSpace, VOSviewer, and Bibliometrix
Highlight box
Key findings
• This bibliometric study comprehensively analyzed the 100 most-cited articles on tissue expanders in breast reconstruction. It identified leading countries (the USA, China, Canada, and the UK), major institutions (the University of Michigan and Memorial Sloan Kettering Cancer Center), and key authors (Cordeiro PG, Wilkins EG). Research hotspots included surgical optimization, complication management, biomaterials, and patient-reported outcomes, demonstrating the evolving trends in expander-based reconstruction.
What is known and what is new?
• While previous studies have primarily focused on clinical outcomes and surgical techniques, there has been no bibliometric assessment summarizing global research productivity and thematic evolution in expander-based breast reconstruction.
• This study is the first to visualize and quantitatively map the academic landscape of this field, revealing international collaborations, research trends, and the transition from technical refinement toward individualized care and patient-centered outcomes.
What is the implication, and what should change now?
• The findings underscore the importance of multidisciplinary collaboration and long-term evaluation of clinical outcomes. Future research should strengthen biomaterial safety assessment, enhance personalized reconstruction strategies, and integrate patient-reported outcomes to further improve surgical and aesthetic results.
Introduction
Tissue expanders are widely used in postmastectomy breast reconstruction to provide soft tissue coverage for implants and restore breast symmetry and aesthetics (1). Research in this field increasingly focuses on optimizing surgical strategies, preventing complications, advancing biomaterials, evaluating patient-reported outcome measures (PROMs), and developing prognostic models (2,3). Although numerous clinical and translational studies exist, no bibliometric analysis has systematically mapped the literature on tissue expanders. Narrative reviews summarize clinical experiences but cannot capture broader publication patterns, key contributors, or evolving research priorities. To address this gap, we conducted a bibliometric analysis of the 100 most-cited publications, examining research themes, publication trends, journal distribution, and leading authors and institutions. This study aims to provide a comprehensive overview of the field and a reference framework to guide future research and clinical practice. We present this article in accordance with the BIBLIO reporting checklist (available at https://gs.amegroups.com/article/view/10.21037/gs-2025-338/rc).
Methods
Study design
This study adopted a systematic literature review (SLR) approach to comprehensively analyze the academic output related to the use of tissue expanders in breast reconstruction. Literature retrieval was conducted using the Web of Science Core Collection (WoSCC) database (4).
As a key component of evidence-based research, SLR ensures transparency and reproducibility through standardized procedures for literature search and selection. This study strictly followed SLR guidelines, with detailed documentation of the search strategy, inclusion criteria, and analysis methods. The goal was to provide a clear chain of evidence and to position the findings within the context of existing research.
Search strategy
To enhance search sensitivity, two researchers (X.C. and J.S.) independently screened the literature for inclusion. As shown in Figure 1, relevant publications were retrieved from the WoSCC using professional search tools. The language was limited to English, and the document type was restricted to “Article” or “Review Article”. To minimize potential bias in bibliometric analysis using WoSCC and to avoid the inclusion of irrelevant studies, only articles with search terms appearing in the title, abstract, keywords, or author keywords were included. The search query was set as: topic search (TS) = ((“tissue expander” OR “tissue expansion”) AND (“breast reconstruction” OR “postmastectomy reconstruction” OR “breast implant”)).
Based on predefined inclusion criteria, two reviewers independently screened the titles, abstracts, or full texts to identify articles related to the use of tissue expanders in breast reconstruction. In cases of disagreement, a third reviewer (S.Z.) participated in discussion to reach a consensus on the final selection of studies.
The search was conducted on July 10, 2025, with detailed steps as shown in Figure 1. The detailed search strategy is shown in Table 1.
Table 1
| Search type | Details |
|---|---|
| Search query | TS = ((“tissue expander*” OR “tissue-expander*”) AND (“breast reconstruction” OR “breast reconstructive surgery” OR “postmastectomy reconstruction”)) |
| Language | English |
| Document type | Articles or Review Articles |
| Index | All |
TS, topic search.
Bibliometric analysis
We employed CiteSpace, VOSviewer, and Bibliometrix to conduct bibliometric and visualization analyses. CiteSpace was used to construct and visualize bibliometric networks, including keyword co-occurrence and the academic influence of countries, journals, researchers, and individual publications (5). VOSviewer facilitated the analysis of institutional collaborations and author co-authorship networks (6). Bibliometrix was applied to generate thematic evolution and thematic quadrant maps based on keywords (7). Additionally, Microsoft Office Excel was used for data organization and statistical analysis. These tools provided comprehensive support for data processing, visualization, and network analysis, ensuring the robustness and accuracy of the findings.
Clinical trial analysis
Data were extracted from ClinicalTrials.gov and the World Health Organization International Clinical Trials Registry Platform (ICTRP) on July 10, 2025. The search strategy used was: ((“tissue expander” OR “tissue expansion”) AND (“breast reconstruction” OR “postmastectomy reconstruction” OR “breast implant”)). Initially, 66 trials were identified from ClinicalTrials.gov and 37 from ICTRP. After screening for duplicates and relevance, data from both databases were merged, and redundant trials were removed. A total of 78 clinical trials involving tissue expanders in breast reconstruction were included in the analysis. Relevant variables such as study design, status, phase, conditions, interventions, outcomes, and start dates were reviewed.
Statistical analysis
This study was based on the 100 most-cited articles focusing on tissue expanders in breast reconstruction. These publications were carefully selected through a rigorous screening and verification process. The analysis employed a structured framework based on literature characteristics, keywords, countries, institutions, authors, and clinical trial data, enabling a comprehensive examination of influential contributors, collaborative networks, and thematic trends within the field of expander-based breast reconstruction. Descriptive statistics were used to summarize bibliometric indicators.
Results
Bibliometric analysis is an effective tool for information retrieval and is widely used for the quantitative evaluation of academic activities. It enables the exploration of the characteristics, structure, and development trends of scientific literature, and helps researchers quickly identify the core knowledge and research hotspots within a given field (8).
In this study, a total of 2,026 publications were initially retrieved from the Web of Science database using an SLR approach. After limiting the document type to “Article” or “Review” and the language to English, and excluding irrelevant studies, the top 100 most-cited articles were ultimately selected for bibliometric analysis. The top 100 publications by citation frequency included in the final analysis are listed in table available at https://cdn.amegroups.cn/static/public/gs-2025-338-1.xlsx.
Main information
Table 2 presents an overview of the top 100 most-cited publications on tissue expanders in breast reconstruction, covering the period from 2008 to 2020. The time span of the publications ranged from 2008 to 2020, covering 17 journals. The average citation per article was 117.61, with an average annual citation of 6.9 per article. Regarding document types, there were 78 articles, 14 conference papers, and 8 reviews. The total citation count ranged from 57 to 437.
Table 2
| Description | Results |
|---|---|
| Timespan | 2008–2020 |
| Number of journals | 17 |
| Number of articles | 100 |
| Average years from publication | 11.86 |
| Average citations per article | 117.61 |
| Number of references | 5,099 |
| Number of authors’ keywords | 260 |
| Number of keywords plus | 83 |
| Number of contributing authors | 441 |
| Authors of single-authored articles | 2 |
| Authors of multi-authored articles | 439 |
| Number of single-authored articles | 2 |
| Articles per author | 0.227 |
| Co-authors per article | 5.61 |
The most cited article was a retrospective cohort study by Chun et al., published in 2010 in Plastic and Reconstructive Surgery. This study reviewed 415 breast reconstruction cases over 6 years and suggested that the use of acellular dermal matrix (ADM) could improve reconstructive support but significantly increased the risk of postoperative seroma and infection (9).
Table 3 lists the average annual citation counts of the top 10 articles (9-18), among which three were authored by Sbitany, Hani, spanning from 2009 to 2017. Notably, all 10 highly cited articles were published in Plastic and Reconstructive Surgery, which is also the most prolific journal among the 100 selected papers, with a total of 60 publications. The second most frequent journal was Annals of Plastic Surgery, with 7 articles included.
Table 3
| Rank | Title | First author | Source title | Date | Citation index | Average citations per year |
|---|---|---|---|---|---|---|
| 1 | Implant-Based Breast Reconstruction Using Acellular Dermal Matrix and the Risk of Postoperative Complications (9) | Chun YS | Plastic and Reconstructive Surgery | 2010 | 437 | 27.31 |
| 2 | Patient Satisfaction in Postmastectomy Breast Reconstruction: A Comparative Evaluation of DIEP, TRAM, Latissimus Flap, and Implant Techniques (10) | Yueh JH | Plastic and Reconstructive Surgery | 2010 | 334 | 20.88 |
| 3 | Radiation Therapy and Breast Reconstruction: A Critical Review of the Literature (11) | Kronowitz SJ | Plastic and Reconstructive Surgery | 2009 | 305 | 17.94 |
| 4 | A Meta-Analysis of Human Acellular Dermis and Submuscular Tissue Expander Breast Reconstruction (12) | Kim JYS | Plastic and Reconstructive Surgery | 2012 | 280 | 20 |
| 5 | Intraoperative Perfusion Techniques Can Accurately Predict Mastectomy Skin Flap Necrosis in Breast Reconstruction: Results of a Prospective Trial (13) | Phillips BT | Plastic and Reconstructive Surgery | 2012 | 259 | 18.5 |
| 6 | Acellular Dermis-Assisted Prosthetic Breast Reconstruction versus Complete Submuscular Coverage: A Head-to-Head Comparison of Outcomes (14) | Sbitany H | Plastic and Reconstructive Surgery | 2009 | 257 | 15.12 |
| 7 | Retrospective Review of 331 Consecutive Immediate Single-Stage Implant Reconstructions with Acellular Dermal Matrix: Indications, Complications, Trends, and Costs (15) | Colwell AS | Plastic and Reconstructive Surgery | 2011 | 251 | 16.73 |
| 8 | Prepectoral Breast Reconstruction: A Safe Alternative to Submuscular Prosthetic Reconstruction following Nipple-Sparing Mastectomy (16) | Sbitany H | Plastic and Reconstructive Surgery | 2017 | 245 | 27.22 |
| 9 | Intraoperative Perfusion Mapping with Laser-Assisted Indocyanine Green Imaging Can Predict and Prevent Complications in Immediate Breast Reconstruction (17) | Komorowska-Timek E | Plastic and Reconstructive Surgery | 2010 | 244 | 15.25 |
| 10 | Acellular Dermis-Assisted Prosthetic Breast Reconstruction: A Systematic and Critical Review of Efficacy and Associated Morbidity (18) | Sbitany H | Plastic and Reconstructive Surgery | 2011 | 219 | 14.6 |
Analysis of contributing countries and regions
A total of 441 researchers from 12 countries contributed to publications on tissue expanders in breast reconstruction. The geographic distribution is shown in Figure 2A, with the USA, China, the UK, and Canada accounting for 94% of all publications (Table 4). International collaboration was analyzed using VOSviewer, Charticulator, and CiteSpace (Figure 2B,2C). Thicker lines indicate stronger cooperation, and the USA led in publication count, citations, and centrality (0.21), while Canada also showed notable centrality (>0.1), reflecting their pivotal roles in global collaboration.
Table 4
| Rank | Country | N | Centrality |
|---|---|---|---|
| 1 | USA | 85 | 0.21 |
| 2 | Canada | 3 | 0.12 |
| 3 | UK | 3 | 0.00 |
| 4 | China | 3 | 0.00 |
| 5 | Italy | 2 | 0.00 |
| 6 | France | 2 | 0.00 |
| 7 | Sweden | 1 | 0.00 |
| 8 | Spain | 1 | 0.00 |
| 9 | Poland | 1 | 0.00 |
| 10 | Israel | 1 | 0.00 |
N, number.
Institutional analysis
A total of 172 institutions worldwide have conducted research on tissue expanders in breast reconstruction, with Memorial Sloan Kettering Cancer Center (n=18), Harvard University (n=14), and the University of Texas (n=13) being the most productive (Table 5). VOSviewer and CiteSpace analyses (Figure 3) showed that the University of Michigan, Memorial Sloan Kettering Cancer Center, Cedars-Sinai Medical Center, and Harvard University occupy central positions in the collaboration network. Node size represents publication volume, line thickness indicates collaboration frequency, and most core institutions were active between 2010 and 2015, forming a closely connected network predominantly centered in leading U.S. medical centers.
Table 5
| Rank | Institutions | N | Centrality |
|---|---|---|---|
| 1 | Memorial Sloan Kettering Cancer Center | 18 | 0.17 |
| 2 | Harvard University | 14 | 0.03 |
| 3 | University of Texas | 13 | 0.01 |
| 4 | University of Michigan | 8 | 0.07 |
| 5 | New York University | 5 | 0.03 |
| 6 | University of Pennsylvania | 5 | 0.00 |
| 7 | Northwestern University | 3 | 0.00 |
| 8 | University of California | 3 | 0.00 |
| 9 | Georgetown University | 3 | 0.00 |
| 10 | Cornell University | 3 | 0.00 |
N, number.
Author and collaboration analysis
A total of 441 scholars participated in the research of tissue expanders in the field of breast reconstruction. Table 6 lists the top 10 authors ranked by the number of published papers, with Lee BT ranking first with 7 published papers and Pusic AL ranking second with 6 published papers.
Table 6
| Rank | Author | Count | Centrality | Cited author | Citations | Centrality |
|---|---|---|---|---|---|---|
| 1 | Lee BT | 7 | 0.00 | Spear SL | 61 | 0.04 |
| 2 | Pusic AL | 6 | 0.00 | Cordeiro PG | 33 | 0.06 |
| 3 | Colwell AS | 5 | 0.00 | Alderman AK | 29 | 0.24 |
| 4 | Cordeiro PG | 5 | 0.01 | Nahabedian MY | 28 | 0.02 |
| 5 | Kim JYS | 5 | 0.00 | Kroll SS | 25 | 0.18 |
| 6 | Kronowitz SJ | 5 | 0.00 | Breuing KH | 24 | 0.11 |
| 7 | Sbitany H | 5 | 0.00 | Salzberg CA | 21 | 0.01 |
| 8 | Serletti JM | 5 | 0.00 | Mccarthy CM | 19 | 0.05 |
| 9 | Wilkins EG | 5 | 0.01 | Zienowicz RJ | 18 | 0.00 |
| 10 | Fischer JP | 4 | 0.00 | Gamboa-Bobadilla GM | 17 | 0.03 |
Author collaboration was analyzed using CiteSpace and VOSviewer to identify core research groups and their interactions. The network (Figure 4A) highlights central authors such as Cordeiro PG, Wilkins EG, Disa JJ, and Kim Hyungjin M, with node size representing publication volume and color gradients indicating temporal evolution. Distinct clusters indicate stable collaborative teams. Bar charts (Figure 4B) confirm prolific output, with Lee BT and Pusic AL leading with seven publications each. Clustering analysis (Figure 4C) reveals differentiated research teams and cross-institutional cooperation. Temporal evolution mapping (Figure 4D) illustrates generational shifts, with early influence from Wilkins EG, Robb GL, and others, and contemporaneous sustained activity by Cordeiro PG, Djohan Risal, and others, reflecting the ongoing development and continuity within the field.
Author co-citation analysis helps identify key scholars widely recognized as the knowledge base in this field. The top three authors by co-citation frequency are Spear SL, Cordeiro PG, and Alderman AK. In the VOSviewer co-citation network (Figure 5A), node size represents co-citation frequency, and line thickness indicates the strength of co-citation links. Spear SL, Cordeiro PG, Nahabedian MY, and Alderman AK occupy central positions, reflecting their high influence and contributions to tissue expander breast reconstruction research. Different color clusters reveal thematic heterogeneity, representing distinct academic directions or technical approaches. The CiteSpace author co-citation centrality network (Figure 5B) confirms the central role of Spear SL and others, while illustrating the temporal evolution of highly cited authors. Node colors transition from purple to red, indicating citation activity over time. Notably, Spear SL, Clough KB, and Alderman AK were frequently cited from 2000 to 2015, demonstrating sustained impact on the field’s development. From the perspective of individual references, the most co-cited publication was Breuing KH’s 2005 study on AlloDerm-assisted direct-to-implant reconstruction, reflecting the close conceptual and methodological linkage between expander-based and direct-to-implant strategies, particularly regarding the integration of ADM.
Journal analysis
The analyzed literature is published across 17 journals, with the top three being Plastic and Reconstructive Surgery, Annals of Plastic Surgery, and Aesthetic Plastic Surgery; notably, Plastic and Reconstructive Surgery alone accounts for 60% of the top 100 most cited articles (Table 7).
Table 7
| Publication titles | Count | IF | JCR |
|---|---|---|---|
| Plastic and Reconstructive Surgery | 60 | 3.4 | Q1 |
| Annals of Plastic Surgery | 7 | 1.6 | Q2 |
| Aesthetic Plastic Surgery | 4 | 2.8 | Q1 |
| Journal of Plastic Reconstructive and Aesthetic Surgery | 4 | 2.4 | Q1 |
| International Journal of Radiation Oncology Biology Physics | 3 | 6.5 | Q1 |
| European Journal of Surgical Oncology | 3 | 2.9 | Q2 |
| Journal of Plastic Surgery and Hand Surgery | 3 | 0.9 | Q4 |
| Breast | 2 | 7.9 | Q1 |
| Cancer | 2 | 5.1 | Q1 |
| Annals of Surgical Oncology | 2 | 3.5 | Q2 |
| Breast Cancer Research and Treatment | 2 | 3.0 | Q2 |
| Cancer Control | 2 | 2.6 | Q3 |
| Clinical Breast Cancer | 2 | 2.5 | Q3 |
IF, impact factor; JCR, Journal Citation Reports.
A dual-map overlay generated with CiteSpace (Figure 6) shows citing journals clustered in “Dentistry, Dermatology, Surgery” and “Medicine, Medical, Clinical”, reflecting concentration within clinical specialties. Cited journals are similarly concentrated in “Dermatology, Dentistry, Surgery”, indicating that the knowledge base is largely discipline-specific. Citation pathways extending into “Molecular, Biology, Genetics” highlight integration with basic tissue engineering research, while links to “Psychology, Education, Health” suggest growing attention to patient-centered outcomes, including psychosocial well-being and aesthetic satisfaction.
Overall, research on tissue expanders demonstrates a consolidated academic network within surgical disciplines, alongside emerging interdisciplinary integration with basic science and humanistic medicine.
Keyword and cluster analysis
As shown in Table 8, the most frequently used keywords include “Breast Cancer”, “Complications”, and a tie for third place between “Mastectomy” and “Acellular Dermal Matrix”, all of which appeared over 25 times in the analyzed records. The top seven keywords (each appearing over 20 times) and the top 14 keywords (each cited at least 10 times) reflect the primary research directions in this area.
Table 8
| Rank | Count | Keyword | Centrality |
|---|---|---|---|
| 1 | 35 | Breast Cancer | 0.29 |
| 2 | 33 | Complications | 0.24 |
| 3 | 29 | Mastectomy | 0.14 |
| 4 | 29 | Acellular Dermal Matrix | 0.12 |
| 5 | 23 | Breast Reconstruction | 0.24 |
| 6 | 22 | Immediate Breast Reconstruction | 0.06 |
| 7 | 20 | Outcome | 0.20 |
| 8 | 19 | Radiotherapy | 0.04 |
| 9 | 18 | Implants | 0.08 |
| 10 | 12 | Tissue Expander | 0.05 |
| 11 | 12 | Premenopausal Women | 0.01 |
| 12 | 11 | Cancer Patients | 0.13 |
| 13 | 11 | Radiation Therapy | 0.10 |
| 14 | 11 | Expansion | 0.03 |
| 15 | 9 | Adjuvant Chemotherapy | 0.04 |
| 16 | 8 | Flap | 0.03 |
| 17 | 8 | Surgery | 0.05 |
| 18 | 8 | Impact | 0.03 |
| 19 | 7 | Capsular Contracture | 0.06 |
| 20 | 7 | Skin Sparing Mastectomy | 0.01 |
Keyword analysis reveals internal connections and research hotspots in tissue expander studies. Co-occurrence mapping (Figure 7A) highlights core topics—“breast cancer”, “mastectomy”, “implant”, “complications”, and “radiotherapy”—while bridging keywords such as “allograft dermal matrix” and “capsular contracture” connect subfields. Timeline analysis (Figure 7B) shows a shift from procedural focus to patient-centered outcomes, with recent emphasis on satisfaction and complication monitoring. Cluster and thematic evolution analyses (Figure 7C,7D) identify well-established themes (ADM, expander/implant reconstruction), foundational but developing areas (complications, mastectomy), and broader topics under refinement (breast reconstruction). Overall, the analysis demonstrates a multidimensional, evolving research landscape combining technical optimization with outcome evaluation.
Overall, research on tissue expanders in breast reconstruction is evolving from a technique-driven to a patient-centered approach. Current hotspots focus on postoperative complications, material selection, and patient satisfaction, reflecting a shift from structural reconstruction toward functional recovery and PROMs (19).
Clinical trial analysis
Table available at https://cdn.amegroups.cn/static/public/gs-2025-338-2.xlsx summarizes clinical studies of tissue expanders in breast reconstruction. The earliest retrievable trial, “Quantification of Breast Sensation Following Postmastectomy Breast Reconstruction” (NCT00588419, 2008, Memorial Sloan Kettering), evaluated recovery of touch, vibration, pain, and temperature after mastectomy with or without reconstruction, and compared implant-based with autologous techniques. This observational study provided early evidence on sensory outcomes. Research activity subsequently increased, peaking in 2013 with seven registered trials (Figure 8A).
Among the 78 included studies, tissue expander trials, as medical device studies, generally do not follow the traditional drug trial phases I–IV. Phase-designated trials mainly involved ADM and postoperative pain management, with phase IV being most frequent (6 studies), followed by phase II (5 studies) (Figure 8B).
Current research emphasizes optimization of expanders, ADM use, and surgical techniques. Trials explore expansion methods, shaping outcomes, pain control, and device safety. Such as ADM studies emphasize safety and efficacy in breast reconstruction, comparing different ADM products with traditional implants, single-stage versus two-stage reconstructions, and their impact on surgical complexity, complications, and aesthetics.
Additional trials address surgical optimization (prepectoral, robot-assisted, nipple-sparing), complication prevention, autologous tissue/fat grafting, radiotherapy effects, sensory recovery, novel technologies, rehabilitation, patient satisfaction, cost-effectiveness, implant safety, and adjunct therapies, reflecting a multidimensional trend (Figure 8C).
Discussion
Key finding
Tissue expanders are a cornerstone of postmastectomy breast reconstruction, enabling progressive skin and soft-tissue expansion for definitive implant or autologous procedures. Advances in biomaterials and surgical techniques have optimized device design and complication management, yet complications such as necrosis, infection, and radiation failure persist, highlighting the need for refined operative strategies, expansion protocols, and adjunctive materials (20).
In this study, we analyzed the top 100 most-cited articles on tissue expanders in breast reconstruction using CiteSpace, VOSviewer, and Bibliometrix. CiteSpace identified the foundational knowledge and emerging research frontiers, VOSviewer visualized co-occurrence networks, and Bibliometrix validated findings and provided regional insights. This bibliometric synthesis offers a clear overview of key research trends, highlights knowledge gaps, and provides guidance for future studies or clinical research planning.
Research insights and positioning
From a temporal perspective, publication activity peaked in 2010–2013 and 2017–2022, with overall output remaining stable, reflecting a mature and sustained research trajectory. From an institutional perspective, research is dominated by the USA (85 publications, centrality =0.21), whereas other countries, including Canada, the UK, and China, each contributed only three publications with limited network connectivity. From an authorship perspective, core contributors such as Cordeiro PG, Wilkins EG, Kim Hyungjin M, and Lee BT address both clinical and translational topics, while co-citation analysis highlights foundational contributions from Spear SL, Alderman AK, and Cordeiro PG. Publications are concentrated in leading surgical journals, with citation trends increasingly linking clinical practice to molecular, engineering, and psychosocial research (21,22). Future progress will likely depend on strengthened international and interdisciplinary collaboration.
Research on tissue expander-based breast reconstruction can be broadly categorized into five interconnected areas: optimization of reconstructive strategies (23), prevention of postoperative complications (24), application of biomaterials (25), PROMs (26), and development of prognostic models (27). These themes reflect the field’s multidimensional nature and its shift toward individualized, evidence-based approaches. Evidence indicates that delayed and delayed-immediate reconstruction strategies, each applicable in specific clinical scenarios (e.g., anticipated postoperative radiotherapy), can reduce overall complication rates compared to immediate reconstruction in high-risk patients, emphasizing tailored surgical planning based on patient-specific factors such as radiotherapy needs, soft tissue status, and aesthetic goals (28). Complication prevention remains critical, with standardized operative protocols and intraoperative perfusion assessment using indocyanine green imaging shown to mitigate risks such as flap necrosis. Innovations in biomaterials, especially ADM, improve implant stability and contour but require careful patient selection and meticulous intraoperative management to minimize seroma and infection (29). Additionally, PROMs and prognostic models for risk stratification are increasingly employed to evaluate reconstructive success and guide precision breast reconstruction (30,31). Collectively, these directions highlight opportunities to optimize safety, efficacy, and patient-centered outcomes in future research (32,33).
Future research should refine surgical protocols, optimize individualized biomaterial selection, and integrate advanced technologies (34,35), including remote-controlled expanders, artificial intelligence (AI)-assisted risk prediction, and predictive modeling, to enhance safety, efficiency, and patient-centered outcomes (36). Multicenter studies and strengthened international collaboration will be essential to validate innovations, reduce complications, and advance precision breast reconstruction (37).
Comparison with similar research
Comparison with similar research Previous studies on tissue expander-based breast reconstruction have largely focused on single aspects, such as ADM application, surgical strategies, or PROMs providing valuable clinical insights but lacking a comprehensive overview of research trends. In contrast, our study integrates temporal, institutional, and authorship analyses with keyword clustering and emerging technology assessment, offering a multidimensional bibliometric perspective. This approach not only highlights persistent challenges, including complication prevention and variability in patient outcomes, but also identifies underexplored areas and emerging directions such as remote-controlled expansion systems, novel biomaterials, and AI-assisted predictive modeling (38), providing strategic guidance beyond descriptive clinical studies.
Strengths and limitations
This study has limitations. First, reliance on the WoSCC may have introduced selection bias by excluding other databases. Second, software-based screening and integration may have caused minor systematic errors. Third, citation counts favor older studies, potentially underrepresenting recent work. In addition, automatic figure generation led to formatting inconsistencies, though data validity was unaffected. Despite these constraints, the analysis identified representative literature and provided insights into research hotspots and future directions, offering meaningful guidance for subsequent studies.
Conclusions
This bibliometric review of the 100 most-cited studies on tissue expanders in breast reconstruction reveals a transition from technical exploration to personalized strategies, material innovation, and long-term evaluation. Research is led by the USA with increasing global participation. Future progress depends on enhanced international collaboration and multidisciplinary integration. Specifically, translating emerging trends identified in this analysis—such as the development of remote-controlled expansion systems, novel biomaterials, and AI-assisted predictive models for risk stratification—into clinical practice will be crucial. These innovations, guided by robust evidence, will help address complex scenarios like radiotherapy, ADM use, and implant positioning, ultimately advancing the field toward a more precise, efficient, and patient-centered reconstruction framework.
Acknowledgments
None.
Footnote
Reporting Checklist: The authors have completed the BIBLIO reporting checklist. Available at https://gs.amegroups.com/article/view/10.21037/gs-2025-338/rc
Peer Review File: Available at https://gs.amegroups.com/article/view/10.21037/gs-2025-338/prf
Funding: This work was supported by
Conflicts of Interest: All authors have completed the ICMJE uniform disclosure form (available at https://gs.amegroups.com/article/view/10.21037/gs-2025-338/coif). All authors report receiving financial support from the Key Laboratory of Advanced Materials of Ministry of Education (No. Advmat-2510) for this study’s design, data analysis, and manuscript preparation. The authors have no other conflicts of interest to declare.
Ethical Statement: The authors are accountable for all aspects of the work in ensuring that questions related to the accuracy or integrity of any part of the work are appropriately investigated and resolved.
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References
- Shammas RL, Wang J, Boe LA, et al. Infection Risk and Patient-Reported Outcomes Across Complete Submuscular, Partial Submuscular, and Prepectoral Tissue Expander Placement. Plast Reconstr Surg 2025; Epub ahead of print. [Crossref]
- Francis SD, Kang AW, Maheta BJ, et al. Impact of post-operative infection on revision procedures in breast reconstruction: A marketscan database analysis. J Plast Reconstr Aesthet Surg 2024;93:103-10. [Crossref] [PubMed]
- Amro C, Sorenson TJ, Boyd CJ, et al. The Evolution of Implant-Based Breast Reconstruction: Innovations, Trends, and Future Directions. J Clin Med 2024;13:7407. [Crossref] [PubMed]
- Zhang H, Feng T, Lin J, et al. Bibliometric-driven research on chemoresistance in breast cancer: knowledge mapping, hotspot evolution, and emerging insights (1994-2024). Discov Oncol 2025;16:1676. [Crossref] [PubMed]
- Liu Y, Deng K, Zhang C, et al. The Rise of Intelligent Plastic Surgery: A 10-Year Bibliometric Journey Through AI Applications, Challenges, and Transformative Potential. Aesthetic Plast Surg 2025; Epub ahead of print. [Crossref]
- Ma HF, Lu Y, Shen J. Bibliometric analysis of robotic surgery research in breast cancer conducted between 2008 and 2022. Gland Surg 2023;12:767-79. [Crossref] [PubMed]
- Yu HB, Han BJ, Hu JQ, et al. Worldwide research on 3D printing for cancer: a dual-method analysis of bibliometrics and stratified focused thematic. Int J Surg 2025; Epub ahead of print. [Crossref]
- Song G, Zheng Z, Zhu Y, et al. A review and bibliometric analysis of global research on proton radiotherapy. Medicine (Baltimore) 2024;103:e38089. [Crossref] [PubMed]
- Chun YS, Verma K, Rosen H, et al. Implant-based breast reconstruction using acellular dermal matrix and the risk of postoperative complications. Plast Reconstr Surg 2010;125:429-36. [Crossref] [PubMed]
- Yueh JH, Slavin SA, Adesiyun T, et al. Patient satisfaction in postmastectomy breast reconstruction: a comparative evaluation of DIEP, TRAM, latissimus flap, and implant techniques. Plast Reconstr Surg 2010;125:1585-95. [Crossref] [PubMed]
- Kronowitz SJ, Robb GL. Radiation therapy and breast reconstruction: a critical review of the literature. Plast Reconstr Surg 2009;124:395-408. [Crossref] [PubMed]
- Kim JYS, Davila AA, Persing S, et al. A meta-analysis of human acellular dermis and submuscular tissue expander breast reconstruction. Plast Reconstr Surg 2012;129:28-41. [Crossref] [PubMed]
- Phillips BT, Lanier ST, Conkling N, et al. Intraoperative perfusion techniques can accurately predict mastectomy skin flap necrosis in breast reconstruction: results of a prospective trial. Plast Reconstr Surg 2012;129:778e-88e. [Crossref] [PubMed]
- Sbitany H, Sandeen SN, Amalfi AN, et al. Acellular dermis-assisted prosthetic breast reconstruction versus complete submuscular coverage: a head-to-head comparison of outcomes. Plast Reconstr Surg 2009;124:1735-40. [Crossref] [PubMed]
- Colwell AS, Damjanovic B, Zahedi B, et al. Retrospective review of 331 consecutive immediate single-stage implant reconstructions with acellular dermal matrix: indications, complications, trends, and costs. Plast Reconstr Surg 2011;128:1170-8. [Crossref] [PubMed]
- Sbitany H, Piper M, Lentz R. Prepectoral Breast Reconstruction: A Safe Alternative to Submuscular Prosthetic Reconstruction following Nipple-Sparing Mastectomy. Plast Reconstr Surg 2017;140:432-43. [Crossref] [PubMed]
- Komorowska-Timek E, Gurtner GC. Intraoperative perfusion mapping with laser-assisted indocyanine green imaging can predict and prevent complications in immediate breast reconstruction. Plast Reconstr Surg 2010;125:1065-73. [Crossref] [PubMed]
- Sbitany H, Serletti JM. Acellular dermis-assisted prosthetic breast reconstruction: a systematic and critical review of efficacy and associated morbidity. Plast Reconstr Surg 2011;128:1162-9. [Crossref] [PubMed]
- Haas EJ, Hamzeh BF, Aryanpour Z, et al. Improving the Patient Experience in Breast Reconstruction: ERAS and Beyond. J Clin Med 2025;14:5595. [Crossref] [PubMed]
- Gorostiza A, Cacicedo J, Alayo I, et al. Basing healthcare decisions on value: patient-reported outcomes for patients diagnosed with breast cancer in a European cohort. Eur J Public Health 2025;35:835-43. [Crossref] [PubMed]
- Stoian A, Duru Ç, Chogan F, et al. Breast Tissue Reconstruction Strategies: A Tissue Engineering Approach. Tissue Eng Part B Rev 2025; Epub ahead of print. [Crossref]
- Cătană A, Iordănescu I, Filip GG, et al. Quality-of-Life Assessment in Patients Undergoing Mastectomy and Breast Reconstruction for Moderate-Penetrance Gene-Related Breast Cancer. J Clin Med 2025;14:1140. [Crossref] [PubMed]
- Xu H, Zheng H, Dabu X, et al. Comparative study of layered breast defect reconstruction and traditional surgery in the treatment of plasma cell mastitis: a single-center study. Gland Surg 2025;14:1473-82. [Crossref] [PubMed]
- Phuyal D, Abbas F, Darras O, et al. Evaluating the Safety of Immediate Lymphatic Reconstruction With Implant-Based Breast Reconstruction: Eight-Year Institutional Review. Microsurgery 2025;45:e70119. [Crossref] [PubMed]
- Casella D, Rocco N, Luridiana G, et al. Enhancing Breast Reconstruction with Bovine Pericardium: A Preliminary STEP (Surgical Techniques and Efficacy in Pericardium Use) Towards Improved Outcomes. J Clin Med 2025;14:6296. [Crossref] [PubMed]
- Su R, Snyder C, Wu AW, et al. A systematic review of patient-reported outcome measures (PROMs) to assess health-related quality of life (HRQoL) for breast cancer patients who are undertaking adjuvant endocrine therapy. Qual Life Res 2025;34:2471-88. [Crossref] [PubMed]
- Gutierrez Salazar M, Rakoczy P, Doherty C, et al. A Clinical Prediction Model in Prognosticating Salvage of the Infected Implant in Alloplastic Breast Reconstruction. Plast Reconstr Surg 2025; Epub ahead of print. [Crossref]
- Marquez JL, Sudduth JD, Kuo K, et al. A Comparison of Postoperative Outcomes Between Immediate, Delayed Immediate, and Delayed Autologous Free Flap Breast Reconstruction: Analysis of 2010-2020 NSQIP Data. J Reconstr Microsurg 2023;39:664-70. [Crossref] [PubMed]
- Salgarello M, Barbera M, Visconti G, et al. Prepectoral Breast Reconstruction: Early and Long-term Complications and Outcomes of Total Coverage ADM and Implants vs Polyurethane-Coated Implants Without Use of Acellular Dermal Matrix. Aesthet Surg J 2025;sjaf158. [Crossref] [PubMed]
- Merenda M, Earnest A, Ruseckaite R, et al. The BREAST-Q Implant Surveillance Module (BREAST-Q IS) as a Predictor of Breast Implant Revision Surgery. Aesthet Surg J 2025;sjaf128. [Crossref] [PubMed]
- Deal AL, DeGeorge BR, Campbell CA. Single assessment numeric evaluation score as a simplified measure of patient satisfaction following breast reconstruction. J Plast Reconstr Aesthet Surg 2025;103:58-62. [Crossref] [PubMed]
- Fijany AJ, Chaker SC, Holan CA, et al. Post-mastectomy Breast Reconstruction With Gas vs Saline Tissue Expanders: Does the Fill Type Matter? Aesthet Surg J 2024;44:612-22. [Crossref] [PubMed]
- Rothchild E, Smith IT, Popoola SO, et al. Surgeon Experience and Outcomes in Microsurgical Breast Reconstruction: A 10-Year Single Surgeon Analysis. J Reconstr Microsurg 2025; Epub ahead of print. [Crossref]
- Huang Z, Chen Z, Fu X, et al. Single-incision robotic nipple-sparing mastectomy with immediate breast reconstruction: a comprehensive surgical technique and strategy. Gland Surg 2025;14:1612-21. [Crossref] [PubMed]
- Haddock NT, Teotia SS, Farr D. Robotic Nipple-Sparing Mastectomy and Breast Reconstruction with Profunda Artery Perforator Flaps. Plast Reconstr Surg 2025;156:337e-41e. [Crossref] [PubMed]
- Rugină AI, Ungureanu A, Giuglea C, et al. Artificial Intelligence in Breast Reconstruction: A Narrative Review. Medicina (Kaunas) 2025;61:440. [Crossref] [PubMed]
- Siegwart LC, Grünherz L, Weitgasser L, et al. Evolution and practice pattern in microsurgical breast reconstruction-A European multicenter study. J Plast Reconstr Aesthet Surg 2025;106:254-64. [Crossref] [PubMed]
- van Winkel SL, Peters J, Janssen N, et al. AI as an independent second reader in detection of clinically relevant breast cancers within a population-based screening programme in the Netherlands: a retrospective cohort study. Lancet Digit Health 2025;7:100882. [Crossref] [PubMed]


