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Influence of experimental alcoholism on the repair process of bone defects filled with beta-tricalcium phosphate

2019; Elsevier BV; Volume: 197; Linguagem: Inglês

10.1016/j.drugalcdep.2018.12.031

1879-0046

Karina Torres Pomini, Tânia Mary Cestari, Íris Jasmin Santos German, Marcelie Priscila de Oliveira Rosso, Jéssica Barbosa de Oliveira Gonçalves, Daniela Vieira Buchaim, Mizael Pereira, Jesús Carlos Andreo, Geraldo Marco Rosa, Bruna Botteon Della Coletta, João Vitor Tadashi Cosin Shindo, Rogério Leone Buchaim,

Bone fractures and treatments

This study evaluated the effect of ethanol on the repair in calvaria treated with beta-tricalcium phosphate (β-TCP). Forty rats were distributed into 2 groups: Water group (CG, n = 20) and Alcohol Group (AG, n = 20), which received 25% ethanol ad libitum after an adaptation period of 3 weeks. After 90 days of liquid diet, the rats were submitted to a 5.0 mm bilateral craniotomy in the parietal bones; the left parietal was filled with β-TCP (CG-TCP and AG-TCP) and the contralateral only with blood clot (CG-Clot and AG-Clot). The animals were killed after 10, 20, 40 and 60 days. The groups CG-Clot and AG-Clot showed similar pattern of bone formation with a gradual and significant increase in the amount of bone in CG-Clot (22.17 ± 3.18 and 34.81 ± 5.49) in relation to AG-Clot (9.35 ± 5.98 and 21.65 ± 6.70) in periods of 20–40 days, respectively. However, in the other periods there was no statistically significant difference. Alcohol ingestion had a negative influence on bone formation, even with the use of β-TCP, exhibiting slow resorption and replacement by fibrous tissue, with 16% of bone formation within 60 days in AG-TCP, exhibiting immature bone tissue with predominance of disorganized collagen fibers. Defects in CG-TCP showed bone tissue with predominance of lamellar arrangement filling 39% of the original defect. It can be concluded that chronic ethanol consumption impairs the ability to repair bone defects, even with the use of a β-TCP biomaterial.