J 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.