ArticleEuropean journal of trauma and emergency surgery : official publication of the European Trauma Society2025
High-Accuracy reduction of comminuted diaphyseal femur fractures using on-site 3-D-printed guides.
Article in European journal of trauma and emergency surgery : official publication of the European Trauma Society, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
purposePersistent malalignment-especially rotational error-after fixation of comminuted femoral shaft fractures compromises function and often necessitates revision surgery. This study evaluated whether point-of-care, patient-specific three-dimensional printed reduction guides can reproducibly restore native femoral length, coronal-sagittal alignment and axial rotation in a cadaveric model simulating highly comminuted shaft fractures.
methodsTen freshfrozen human legs were CTscanned, virtually reduced, and fitted with patientspecific guides printed in a sterilizable medical resin. A 2 cm midshaft segment was resected to simulate a comminuted fracture. Each construct was reduced with the guides and stabilized with a locking compression plate. Postoperative CT volumes were superimposed to the preoperative plan to quantify absolute deviations in length, coronal (varus/valgus), sagittal (procurvatum/recurvatum), and axial rotation.
resultsAll reductions were completed without technical difficulty. Mean ± SD absolute errors were 1.50 ± 1.08 mm in length, 0.92 ± 0.41° in the coronal plane, 1.33 ± 1.34° in the sagittal plane, and 4.33 ± 1.88° in rotation-well within acceptable clinical limits.
conclusionOn‑site printed, patient‑specific guides achieved high accuracy in a comminuted femoral fracture model. Clinical studies are required to determine whether this accuracy translates into improved patient outcomes.
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