J 2021

Lumbar Interbody Fusion Conducted on a Porcine Model with a Bioresorbable Ceramic/Biopolymer Hybrid Implant Enriched with Hyperstable Fibroblast Growth Factor 2

KRTIČKA, Milan, Ladislav PLÁNKA, Lucy VOJTOVÁ, Vladimír NEKUDA, Premysl STASTNY et. al.

Basic information

Original name

Lumbar Interbody Fusion Conducted on a Porcine Model with a Bioresorbable Ceramic/Biopolymer Hybrid Implant Enriched with Hyperstable Fibroblast Growth Factor 2

Authors

KRTIČKA, Milan (203 Czech Republic, belonging to the institution), Ladislav PLÁNKA (203 Czech Republic, belonging to the institution), Lucy VOJTOVÁ (203 Czech Republic, guarantor), Vladimír NEKUDA (203 Czech Republic, belonging to the institution), Premysl STASTNY (203 Czech Republic), Radek SEDLACEK (203 Czech Republic), Adam BRINEK (203 Czech Republic), Michaela KAVKOVA (203 Czech Republic), Eduard GOPFERT (203 Czech Republic), Vera HEDVICAKOVA (203 Czech Republic), Michala RAMPICHOVA (203 Czech Republic), Leoš KŘEN (203 Czech Republic, belonging to the institution), Květoslava LIŠKOVÁ (203 Czech Republic, belonging to the institution), Daniel IRA (703 Slovakia, belonging to the institution), Jana DORAZILOVA (203 Czech Republic), Tomas SUCHY (203 Czech Republic), Tomas ZIKMUND (203 Czech Republic), Jozef KAISER, David STARÝ (203 Czech Republic, belonging to the institution), Martin FALDYNA (203 Czech Republic) and Martin TRUNEC (203 Czech Republic)

Edition

BIOMEDICINES, BASEL, MDPI, 2021, 2227-9059

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10608 Biochemistry and molecular biology

Country of publisher

Switzerland

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 4.757

RIV identification code

RIV/00216224:14110/21:00122158

Organization unit

Faculty of Medicine

UT WoS

000676188200001

Keywords in English

micro-CT; biomechanics; histology; animal model; lumbar spinal fusion; tissue engineering; autograft; ceramic; collagen; FGF2

Tags

International impact, Reviewed
Změněno: 24/8/2021 14:20, Mgr. Tereza Miškechová

Abstract

V originále

Many growth factors have been studied as additives accelerating lumbar fusion rates in different animal models. However, their low hydrolytic and thermal stability both in vitro and in vivo limits their workability and use. In the proposed work, a stabilized vasculogenic and prohealing fibroblast growth factor-2 (FGF2-STAB(R)) exhibiting a functional half-life in vitro at 37 degrees C more than 20 days was applied for lumbar fusion in combination with a bioresorbable scaffold on porcine models. An experimental animal study was designed to investigate the intervertebral fusion efficiency and safety of a bioresorbable ceramic/biopolymer hybrid implant enriched with FGF2-STAB(R) in comparison with a tricortical bone autograft used as a gold standard. Twenty-four experimental pigs underwent L2/3 discectomy with implantation of either the tricortical iliac crest bone autograft or the bioresorbable hybrid implant (BHI) followed by lateral intervertebral fixation. The quality of spinal fusion was assessed by micro-computed tomography (micro-CT), biomechanical testing, and histological examination at both 8 and 16 weeks after the surgery. While 8 weeks after implantation, micro-CT analysis demonstrated similar fusion quality in both groups, in contrast, spines with BHI involving inorganic hydroxyapatite and tricalcium phosphate along with organic collagen, oxidized cellulose, and FGF2- STAB(R) showed a significant increase in a fusion quality in comparison to the autograft group 16 weeks post-surgery (p = 0.023). Biomechanical testing revealed significantly higher stiffness of spines treated with the bioresorbable hybrid implant group compared to the autograft group (p < 0.05). Whilst histomorphological evaluation showed significant progression of new bone formation in the BHI group besides non-union and fibrocartilage tissue formed in the autograft group. Significant osteoinductive effects of BHI based on bioceramics, collagen, oxidized cellulose, and FGF2-STAB(R) could improve outcomes in spinal fusion surgery and bone tissue regeneration.