Comparison of TPLO tibial tuberosity fractures with and without an in situ rotational pin

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Abstract

Objective: Cranial cruciate ligament (CCL) rupture is a common cause of pelvic limb lameness in dogs. The tibial plateau leveling osteotomy (TPLO) is a well-described surgical procedure that treats CCL ruptures. The objective of this study was to compare the risk of tibial tuberosity fractures from TPLO procedures using a TPLO reduction pin in situ versus patients with a TPLO reduction pin removed at the time of surgery. Our hypothesis is that patients with a TPLO reduction pin left in situ will have a decreased incidence of tibial tuberosity fractures. Results: A total of 400 dogs that fitted the criteria of 200 consecutive TPLO surgeries performed with each group were included in the study. The Student's t-test revealed a statistically significant difference in fractures observed in group 1 (in situ pin) and group 2 (no pin). In univariate logistic regression analysis, only the covariate for the presence of the reduction pin was associated with a statistically significant reduction in the likelihood of tibial tuberosity fracture. In the multivariate model, the presence of the reduction pin was associated with an approximate 92% reduction in the likelihood of tibial tuberosity fracture.

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Morgan, M. J., & Frazho, J. K. (2018). Comparison of TPLO tibial tuberosity fractures with and without an in situ rotational pin. BMC Research Notes, 11(1). https://doi.org/10.1186/s13104-018-3474-7

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