ArticleWorld journal of surgical oncology2026
Clinical outcomes and mechanical evaluation of patient-specific mandibular reconstruction following tumor resection: a retrospective study with finite element analysis.
Article in World journal of surgical oncology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
4 authors.
Funding
Abstract
backgroundMandibular defects most frequently result from ablative oncologic surgery and pose major functional and esthetic challenges. While vascularized osseous free flaps remain the gold-standard treatment, patient-specific implants (PSIs) fabricated by three-dimensional (3D) printing are an increasingly popular alternative. PSIs provide superior anatomical conformity and improved cosmetic outcomes, yet their long-term mechanical reliability and fatigue resistance remain unclear. This study aimed to evaluate both the biomechanical performance and clinical outcomes of 3D-printed PSIs for mandibular reconstruction.
methodsThis retrospective study analyzed nine patients who underwent mandibular reconstruction with PSIs at Seoul National University Dental Hospital. Clinical outcomes and complications were reviewed at final follow-up (mean 36.1 ± 17.3 months; range, 5.5–63.9 months). Reconstruction plates were categorized into two types: Non-Filling Contour Plate (NFCP) and Defect-Filling Mesh Plate (DFMP). Finite element analysis (FEA) was performed on representative cases to assess stress distribution and fatigue behavior under physiological loading.
resultsDuring a mean follow-up of 36.1 months, two fractures occurred (22%): one NFCP at 34 months and one DFMP at 20 months, with both exhibiting segmental defects. FEA showed deformation of 2.01 mm in NFCP, 2.20 mm in DFMP, and 1.45 mm in modified DFMP. Peak stress was 683.3 MPa for NFCP, 378.2 MPa for DFMP and 498.8 MPa for modified DFMP, with DFMP showing mesh stress (156.6 MPa) exceeding local strength (68.2 MPa). NFCP fatigue analysis predicted ~ 184,000 cycles (≈ 3 months at maximal load), equivalent to 6–21 months under physiologic loading. Modified DFMP reduced mesh stress to 41.3 MPa.
conclusionsPSIs showed favorable clinical outcomes with excellent anatomical fit. Distinct failure mechanisms underscore the importance of fatigue life assessment, and design optimization like mesh repositioning may improve reliability for long-term use in oncologic mandibular reconstruction.
trial registrationRetrospectively registered.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.