Evaluation of a customized 3D-printed saw guide for tibial plateau leveling osteotomy: An ex vivo study.
Vet Surg
; 51(6): 963-973, 2022 Aug.
Article
in En
| MEDLINE
| ID: mdl-35570369
ABSTRACT
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. STUDYDESIGN:
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. CLINICALSIGNIFICANCE:
A customized 3D-printed guide may improve intraoperative accuracy for TPLO, although the clinical significance of the small benefits is unknown.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Tibia
/
Dog Diseases
Limits:
Animals
/
Humans
Language:
En
Journal:
Vet Surg
Year:
2022
Document type:
Article
Affiliation country:
South Korea