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Weight-bearing CT Hounsfield unit algorithm assessment of calcaneal osteotomy healing. A prospective study comparing metallic and bio-integrative screws

Publication ,  Journal Article
Barbachan Mansur, NS; Tazegul, T; Alencar Mendes de Carvalho, K; Chu Kim, K; Dibbern, K; Lalevee, M; De César Netto, C
Published in: Journal of the Foot & Ankle
April 30, 2022

Objective: To investigate the capability of biointegrative screws to achieve similar radiographical healing outcomes to metallic screws, measured using Hounsfield Unit (HU) algorithms, in medial displacement calcaneus osteotomies (MDCO). Our main hypothesis is that both implant methods would demonstrate comparable results. Methods: In this prospective comparative study, patients undergoing MDCO were allocated to either a biointegrative or a metallic group. Surgeon, primary diagnosis, technique, and displacement were the same for both groups. Patients were assessed using weight-bearing computed tomography preoperatively and at weeks 2, 6, and 12 postoperatively. A 40x40x40 mm cube was centered on the osteotomy site, defining a volume of interest (VOI). Image intensity (Hounsfield Units) profiles along lines perpendicular to the osteotomy line and crossing it were recorded. Graphical plots of the HU distributions were generated for each line and then used to calculate the HU contrast. Results: Three patients were allocated to the metallic group (age: 50.66; BMI: 27.78) and three to the biointegrative group (age: 47.33; BMI: 39.35). At two weeks, mean HU intensity was lower in the metallic group on the center (403.25 vs. 416.28; p=0.312) and superior lines (438.97 vs. 497.92), but not on the inferior line (513.24 vs. 386.57; p<0.001). At six weeks, the mean HU intensity was higher in the biointegrative group on the center line (p<0.001) and the superior line (p=0.018). At 12 weeks, the metallic group presented lower HU values on the center (p<0.001) and inferior (p<0.001) lines, but higher values on the superior line (p=0.010). Contrast was higher in the metallic group patients in the second (p=0.034) and 12th weeks (p=0.049). Conclusion: Bone healing radiographical status results were similar for metallic and bio-integrative screws. Maximum HU values were equivalent, indicating comparable results at the osteotomy sites. However, the biointegrative group had lower contrast, portraying lower variability of bone density over the area. Level of Evidence II; Prospective Comparative Study.

Duke Scholars

Published In

Journal of the Foot &amp; Ankle

DOI

EISSN

2675-2980

Publication Date

April 30, 2022

Volume

16

Issue

1

Start / End Page

52 / 58

Publisher

Associacao Brasileira de Medicina e Cirurgia do Tornozelo e Pe (ABTPe)
 

Citation

APA
Chicago
ICMJE
MLA
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Barbachan Mansur, N. S., Tazegul, T., Alencar Mendes de Carvalho, K., Chu Kim, K., Dibbern, K., Lalevee, M., & De César Netto, C. (2022). Weight-bearing CT Hounsfield unit algorithm assessment of calcaneal osteotomy healing. A prospective study comparing metallic and bio-integrative screws. Journal of the Foot &amp; Ankle, 16(1), 52–58. https://doi.org/10.30795/jfootankle.2022.v16.1630
Barbachan Mansur, Nacime Salomão, Tutku Tazegul, Kepler Alencar Mendes de Carvalho, Ki Chu Kim, Kevin Dibbern, Matthieu Lalevee, and César De César Netto. “Weight-bearing CT Hounsfield unit algorithm assessment of calcaneal osteotomy healing. A prospective study comparing metallic and bio-integrative screws.” Journal of the Foot &amp; Ankle 16, no. 1 (April 30, 2022): 52–58. https://doi.org/10.30795/jfootankle.2022.v16.1630.
Barbachan Mansur NS, Tazegul T, Alencar Mendes de Carvalho K, Chu Kim K, Dibbern K, Lalevee M, et al. Weight-bearing CT Hounsfield unit algorithm assessment of calcaneal osteotomy healing. A prospective study comparing metallic and bio-integrative screws. Journal of the Foot &amp; Ankle. 2022 Apr 30;16(1):52–8.
Barbachan Mansur, Nacime Salomão, et al. “Weight-bearing CT Hounsfield unit algorithm assessment of calcaneal osteotomy healing. A prospective study comparing metallic and bio-integrative screws.” Journal of the Foot &amp; Ankle, vol. 16, no. 1, Associacao Brasileira de Medicina e Cirurgia do Tornozelo e Pe (ABTPe), Apr. 2022, pp. 52–58. Crossref, doi:10.30795/jfootankle.2022.v16.1630.
Barbachan Mansur NS, Tazegul T, Alencar Mendes de Carvalho K, Chu Kim K, Dibbern K, Lalevee M, De César Netto C. Weight-bearing CT Hounsfield unit algorithm assessment of calcaneal osteotomy healing. A prospective study comparing metallic and bio-integrative screws. Journal of the Foot &amp; Ankle. Associacao Brasileira de Medicina e Cirurgia do Tornozelo e Pe (ABTPe); 2022 Apr 30;16(1):52–58.

Published In

Journal of the Foot &amp; Ankle

DOI

EISSN

2675-2980

Publication Date

April 30, 2022

Volume

16

Issue

1

Start / End Page

52 / 58

Publisher

Associacao Brasileira de Medicina e Cirurgia do Tornozelo e Pe (ABTPe)