The Journal of foot and ankle surgery : official publication of the American College of Foot and Ankle Surgeons · 2025
Fusion rates in tibiotalocalcaneal arthrodesis with tantalum-coated metal cone augmentation.
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Gallahue Aine M, Mahjoub Adel, D'Antonio Nicholas, Romiyo Vineeth, Gentile Pietro M, Freeland Erik
Аннотация
BACKGROUND: Tantalum-coated metal spacers (TCMS) have been increasingly utilized to fill and provide structure to large bony defects in the hindfoot. There is a paucity of literature assessing the outcomes of tantalum-coated metal spacers in foot and ankle surgery.
PURPOSE: This study serves to assess clinical outcomes and fusion rates of patients who underwent tibiotalocalcaneal arthrodesis with tantalum augmentation.
STUDY DESIGN: This is a retrospective cohort study (N = 65) of patients who underwent tibiotalocalcaneal arthrodesis with and without TCMS at a tertiary care center between 2015 and 2021.
METHODS: Computed tomography scans at the six-month postoperative point were reviewed to determine fusion status. Patient-reported outcomes measures were collected after at least 1 year postoperatively. A multivariate logistic regression model was used to measure the likelihood of achieving fusion with tantalum augmentation.
RESULTS: There was a statistically significant lower rate of hardware failure in the TCMS group (4.76 % vs. 34.09 %, p = 0.021). TCMS-augmentation was a nonsignificant predictor of increased odds of fusion at the six-month postoperative point (OR = 4.84, p = 0.124).
CONCLUSION: This study is the largest to date to present 6-month postoperative CT scans demonstrating successful tibiotalocalcaneal arthrodesis fusion with tantalum augmentation, contributing to our understanding of its utility. Further studies are needed to evaluate the efficacy of TCMS-augmented fusions as a viable substitute to custom printed cages.
PURPOSE: This study serves to assess clinical outcomes and fusion rates of patients who underwent tibiotalocalcaneal arthrodesis with tantalum augmentation.
STUDY DESIGN: This is a retrospective cohort study (N = 65) of patients who underwent tibiotalocalcaneal arthrodesis with and without TCMS at a tertiary care center between 2015 and 2021.
METHODS: Computed tomography scans at the six-month postoperative point were reviewed to determine fusion status. Patient-reported outcomes measures were collected after at least 1 year postoperatively. A multivariate logistic regression model was used to measure the likelihood of achieving fusion with tantalum augmentation.
RESULTS: There was a statistically significant lower rate of hardware failure in the TCMS group (4.76 % vs. 34.09 %, p = 0.021). TCMS-augmentation was a nonsignificant predictor of increased odds of fusion at the six-month postoperative point (OR = 4.84, p = 0.124).
CONCLUSION: This study is the largest to date to present 6-month postoperative CT scans demonstrating successful tibiotalocalcaneal arthrodesis fusion with tantalum augmentation, contributing to our understanding of its utility. Further studies are needed to evaluate the efficacy of TCMS-augmented fusions as a viable substitute to custom printed cages.