TY - JOUR
T1 - Evaluation of a customized 3D-printed saw guide for tibial plateau leveling osteotomy
T2 - An ex vivo study
AU - Lee, Seungeon
AU - Kang, Jinsu
AU - Kim, Namsoo
AU - Heo, Suyoung
N1 - Publisher Copyright:
© 2022 American College of Veterinary Surgeons.
PY - 2022/8
Y1 - 2022/8
N2 - Objective: To determine whether a tibial plateau leveling osteotomy (TPLO) performed with a customized 3D-printed guide and jig is more accurate than the traditional technique using a jig alone. Study design: In vitro study. Sample population: Cadaveric canine pelvic limbs (n = 10) and 20 synthetic bone models. Methods: Tibial plateau leveling osteotomy using a jig with (n = 10) and without (n = 10) a customized 3D-printed guide were performed in bone models, and TPLO using a jig with (n = 5) and without (n = 5) a customized 3D-printed guide were performed in cadaveric limbs. Angulation of the osteotomy, angulation of the proximal jig pin, angular/torsional deformity and medial cortex damage were measured from photographs of the specimens and compared. Results: In the bone models, there were differences with and without the 3D guide for mean osteotomy inclination (−0.06° vs. –1.74°, P <.001), osteotomy torsion (5268 vs. 10 469 visible osteotomy pixels, P <.001), and medial cortical damage (2970 vs. 18 562 pixels, P <.001). In the cadaveric study, osteotomy inclination (−1.1° vs. 1.01°, P <.01), induced angular deformity (0.17° vs. –3.01°, P <.001) and angulation of the proximal jig pin (−0.27° vs. 0.80°, P <.001) differed between groups. Conclusion: The 3D-printed guide during TPLO resulted in slightly more accurate osteotomies and proximal jig pin placement, and reduced medial cortex damage. Clinical significance: A customized 3D-printed guide may improve intraoperative accuracy for TPLO, although the clinical significance of the small benefits is unknown.
AB - Objective: To determine whether a tibial plateau leveling osteotomy (TPLO) performed with a customized 3D-printed guide and jig is more accurate than the traditional technique using a jig alone. Study design: In vitro study. Sample population: Cadaveric canine pelvic limbs (n = 10) and 20 synthetic bone models. Methods: Tibial plateau leveling osteotomy using a jig with (n = 10) and without (n = 10) a customized 3D-printed guide were performed in bone models, and TPLO using a jig with (n = 5) and without (n = 5) a customized 3D-printed guide were performed in cadaveric limbs. Angulation of the osteotomy, angulation of the proximal jig pin, angular/torsional deformity and medial cortex damage were measured from photographs of the specimens and compared. Results: In the bone models, there were differences with and without the 3D guide for mean osteotomy inclination (−0.06° vs. –1.74°, P <.001), osteotomy torsion (5268 vs. 10 469 visible osteotomy pixels, P <.001), and medial cortical damage (2970 vs. 18 562 pixels, P <.001). In the cadaveric study, osteotomy inclination (−1.1° vs. 1.01°, P <.01), induced angular deformity (0.17° vs. –3.01°, P <.001) and angulation of the proximal jig pin (−0.27° vs. 0.80°, P <.001) differed between groups. Conclusion: The 3D-printed guide during TPLO resulted in slightly more accurate osteotomies and proximal jig pin placement, and reduced medial cortex damage. Clinical significance: A customized 3D-printed guide may improve intraoperative accuracy for TPLO, although the clinical significance of the small benefits is unknown.
UR - http://www.scopus.com/inward/record.url?scp=85132638030&partnerID=8YFLogxK
U2 - 10.1111/vsu.13826
DO - 10.1111/vsu.13826
M3 - Article
C2 - 35570369
AN - SCOPUS:85132638030
SN - 0161-3499
VL - 51
SP - 963
EP - 973
JO - Veterinary Surgery
JF - Veterinary Surgery
IS - 6
ER -