000168735 001__ 168735
000168735 005__ 20260217214838.0
000168735 0247_ $$2doi$$a10.52312/jdrs.2026.2233
000168735 0248_ $$2sideral$$a148144
000168735 037__ $$aART-2025-148144
000168735 041__ $$aeng
000168735 100__ $$aDurán-Serrano, María
000168735 245__ $$aPatient-specific 3D printed guides for repairing posterior root tears of the medial meniscus: A cadaveric study
000168735 260__ $$c2025
000168735 5060_ $$aAccess copy available to the general public$$fUnrestricted
000168735 5203_ $$aObjectives: The aim of this study was to evaluate the accuracy of tibial tunnel placement using patient-specific three-dimensional (3D)-printed guides for repairing medial meniscus posterior root tears designed from magnetic resonance imaging (MRI) scans.
Materials and methods: Five right fresh-frozen cadaveric knees underwent MRI scanning with 1-mm isotropic slices. For each specimen, custom guides were created to generate two transosseous tibial tunnels, with design based on anatomical landmarks including the medial tibial eminence (MTE) and the posterior cruciate ligament (PCL) insertion. Guide design was done using Rhinoceros software, segmentation of bone structures and soft tissues in 3D Slicer, and printing in polyamide. After arthroscopic repair, computed tomography scans and anatomical dissections were performed to measure the accuracy of tunnel placement relative to the native medial meniscus posterior root attachment (MMPRA), the MTE, and the PCL. Individual pre- and postoperative measurements were compared to verify anatomical accuracy, and pooled data from all knees were analyzed.
Results: Individual evaluation showed minimal differences between pre- and postoperative measurements, ranging from 0.00 to 0.09 mm. Pooled analysis revealed no significant differences in the measurements taken: PCL-MMPRA (p=0.313), MTEMMPRA (p=0.705) or the width of MMPRA (p=0.125). The guides enabled precise and reproducible tunnel placement, with consistent targeting of the anatomical footprint. Each guide cost approximately €30, with a production turnaround time of less than one week.
Conclusion: Patient-specific 3D-printed guides enable the effective creation of two anatomically accurate tibial tunnels for medial meniscus posterior root repair. This approach offers a rapid and precise solution for anatomical restoration using MRI-guided planning.
000168735 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc$$uhttps://creativecommons.org/licenses/by-nc/4.0/deed.es
000168735 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000168735 700__ $$aColom-Diaz, Ignacio
000168735 700__ $$aLaclériga-Giménez, Antonio-Francisco
000168735 700__ $$aDelfau-Lafuente, Daniel
000168735 700__ $$0(orcid)0000-0001-7441-8731$$aRoche-Albero, Adrián$$uUniversidad de Zaragoza
000168735 700__ $$aLizcano-Palomares, Miguel
000168735 700__ $$0(orcid)0000-0002-0858-0340$$aMartín-Hernández, Carlos
000168735 7102_ $$11013$$2830$$aUniversidad de Zaragoza$$bDpto. Cirugía$$cÁrea Traumatología y Ortopedia
000168735 773__ $$pJt. dis. relat. surg.$$tJoint diseases and related surgery$$x2687-4784
000168735 8564_ $$s1276338$$uhttps://zaguan.unizar.es/record/168735/files/texto_completo.pdf$$yVersión publicada
000168735 8564_ $$s2620331$$uhttps://zaguan.unizar.es/record/168735/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000168735 909CO $$ooai:zaguan.unizar.es:168735$$particulos$$pdriver
000168735 951__ $$a2026-02-17-20:14:33
000168735 980__ $$aARTICLE