2021
Microcomputed tomographic, biomechanical and histological analyses of lumbar interbody fusion with iliac crest bone graft in a pig model
KRTIČKA, Milan, Vladimír NEKUDA, Daniel IRA, Radek SEDLACEK, Tomas SUCHY et. al.Základní údaje
Originální název
Microcomputed tomographic, biomechanical and histological analyses of lumbar interbody fusion with iliac crest bone graft in a pig model
Autoři
KRTIČKA, Milan (203 Česká republika, domácí), Vladimír NEKUDA (203 Česká republika, domácí), Daniel IRA (703 Slovensko, domácí), Radek SEDLACEK (203 Česká republika), Tomas SUCHY (203 Česká republika), Michaela KAVKOVA (203 Česká republika), Adam BRINEK (203 Česká republika), Eduard GOPFRT (203 Česká republika), Andrej BILIK, Jozef KAISER, Leoš KŘEN (203 Česká republika, domácí) a Ladislav PLÁNKA (203 Česká republika, garant, domácí)
Vydání
Acta veterinaria (Brno), Brno, VETERINARNI A FARMACEUTICKA UNIVERZITA BRNO, 2021, 0001-7213
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
40301 Veterinary science
Stát vydavatele
Česká republika
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 0.817
Kód RIV
RIV/00216224:14110/21:00122157
Organizační jednotka
Lékařská fakulta
UT WoS
000654628800009
Klíčová slova anglicky
Bone replacement; spine; injury
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 24. 8. 2021 13:13, Mgr. Tereza Miškechová
Anotace
V originále
The main goal of this study was to assess the progress of vertebral stability after lumbar interbody fusion related to microcomputed tomography (micro CT), biomechanical analysis, and histological assessment towards spine fusion. Twelve male pigs were used; each underwent L2-3 discectomy and implantation of an iliac crest bone graft in two groups; six spines were harvested eight weeks (A1) and six spines 16 weeks (A2) after surgery (7 native spines for biomechanical analysis). The CT was performed by GE phoenix datos vertical bar x 2.0 with a sample drift correction. The samples were divided according to fusion quality. Biomechanical evaluation was carried out on the MTS Mini Bionix testing system. In the nondestructive mode, three cycles of pure bending moments were applied (5 Nm load limit) at a rate of 20 degrees/min in flexion (+40 degrees) and extension (-40 degrees). Two representative histological sections from four samples were obtained (A1, n = 2; A2, n = 2); areas of mature bone were quantified. In micro CT, better results were achieved in group A2 (not significant). Eight weeks after the operation, flexural stiffness decreased to 48% of its initial value for native cadavers (P < 0.05); after 16 weeks it was comparable to native cadavers, demonstrating the suitability of the implanted graft (P < 0.05). The newly formed bone tissue occupied an average area of 94.205 mm(2) (A1) and 26.240 mm(2) (A2). It was confirmed that micro CT, biomechanical analysis, and histological assessment are technically feasible and suitable for the evaluation of results of other methods of large bone defect treatment.