The Translation of a Curvilinear Osteotomy from Plan to Patient Using Guided TPLO Is More Accurate Compared to the Traditional Technique

Introduction: The objective of this study was to compare the accuracy of a curvilinear osteotomy using an OssAbility guide compared with the traditional method. We hypothesized that the use of the guidance system would improve TPLO accuracy in the sagittal and frontal planes and that surgeon experience would improve traditional unguided osteotomy accuracy but would not influence guided osteotomy accuracy.

Materials and Methods: A randomized controlled ex vivo experimental study was used to evaluate the impact of a surgical osteotomy guide on curvilinear cuts performed on bone models. Eight participants at varying levels of surgical training were included to perform osteotomies utilizing a traditional approach versus applying a custom guide.

Results: Centring of guided osteotomies were significantly closer to their ideal location than unguided (p = 0.005). The difference in osteotomy angulation in the sagittal plane compared with the ideal angle of 90 degrees was lower for the unguided osteotomies (p = 0.042). No statistically significant association was made between the participant’s clinical experience and the accuracy of their cuts in the frontal and transverse planes.

Discussion/Conclusion: Accuracy of the positioning of a curvilinear osteotomy was improved when a custom surgical guide was utilized regardless of clinical experience and may improve TPLO accuracy for surgeons of various levels of active training.

Acknowledgment

Bone models and osteotomy guides were provided by OssAbility.

Publikationsverlauf

Artikel online veröffentlicht:
15. Juli 2025