01 / CONTINUITY OF A BIOMECHANICAL SCHOOL
The historical principle is preserved while the planning tools advance.
Professor Gino Emilio Lasco's biomechanical orthognathic surgery treated mandibular movement, muscular vectors, occlusion, joint position and healing as parts of one functional system. This 2024 article is presented as a later proposal for modification and advancement of that biomechanical approach.
It does not alter the original historical record or replace Professor Lasco's technique. It documents the team's continuing experience and reflection: how contemporary digital imaging, three-dimensional design and additive manufacturing can be used to develop and test a new mandibular osteotomy while retaining the original concern for anatomy, function and biomechanical stability.
02 / THE PROPOSED ADVANCEMENT
A beveled ramus osteotomy designed from patient imaging.
The study converted computed-tomography DICOM data into an STL mandibular model. The digital mandible was then used to determine the osteotomy direction, angle and depth and to design a patient-matched guide for a piezoelectric cutting instrument.
The proposed oblique, beveled surface was intended to improve contact between the mandibular segments while preserving intraoral access, the inferior alveolar neurovascular bundle, the dentoalveolar boundaries and the teeth. The authors proposed that these features could reduce surgical difficulty, operative time, neurovascular risk and postoperative complications. These remain design objectives requiring clinical validation.
03 / PROOF OF TECHNICAL FEASIBILITY
The digital design was transferred to a physical mandibular model.
The osteotomy developed in the digital environment was reproduced on an additively manufactured synthetic mandible with bone-like density. This allowed the investigators to compare the planned geometry with the performed cut and to confirm that the digital workflow could be translated into a physical surgical model.
The article is a design and feasibility study. It does not report a treated patient series, comparative clinical outcomes or long-term follow-up. Its value in this archive is therefore prospective: it shows how a historical biomechanical concept can generate a testable contemporary surgical proposal.
This entry records the relationship identified by the archive curator between Professor Lasco's biomechanical orthognathic tradition and the later 3D osteotomy proposal. The peer-reviewed article remains the authoritative source for the design, methods and conclusions.
04 / PUBLISHED RECORD
Read the complete open-access article.
Andreucci, C.A.; Fonseca, E.M.M.; Jorge, R.N. “Biomechanics of a Novel 3D Mandibular Osteotomy Design.” Designs 2024, 8, 57.
OPEN-ACCESS ARTICLE · DESIGNS, 2024Biomechanics of a Novel 3D Mandibular Osteotomy DesignOpen the article and complete figures ↗