» Articles » PMID: 21136053

Custom-made Composite Scaffolds for Segmental Defect Repair in Long Bones

Overview
Journal Int Orthop
Specialty Orthopedics
Date 2010 Dec 8
PMID 21136053
Citations 38
Authors
Affiliations
Soon will be listed here.
Abstract

Current approaches for segmental bone defect reconstruction are restricted to autografts and allografts which possess osteoconductive, osteoinductive and osteogenic properties, but face significant disadvantages. The objective of this study was to compare the regenerative potential of scaffolds with different material composition but similar mechanical properties to autologous bone graft from the iliac crest in an ovine segmental defect model. After 12 weeks, in vivo specimens were analysed by X-ray imaging, torsion testing, micro-computed tomography and histology to assess amount, strength and structure of the newly formed bone. The highest amounts of bone neoformation with highest torsional moment values were observed in the autograft group and the lowest in the medical grade polycaprolactone and tricalcium phosphate composite group. The study results suggest that scaffolds based on aliphatic polyesters and ceramics, which are considered biologically inactive materials, induce only limited new bone formation but could be an equivalent alternative to autologous bone when combined with a biologically active stimulus such as bone morphogenetic proteins.

Citing Articles

Innovative Developments in Lumbar Interbody Cage Materials and Design: A Comprehensive Narrative Review.

Chang S, Kang D, Cho S Asian Spine J. 2023; 18(3):444-457.

PMID: 38146053 PMC: 11222887. DOI: 10.31616/asj.2023.0407.


Histological and Immunohistochemical Characterization of Osteoimmunological Processes in Scaffold-Guided Bone Regeneration in an Ovine Large Segmental Defect Model.

Finze R, Laubach M, Serafini M, Kneser U, Medeiros Savi F Biomedicines. 2023; 11(10).

PMID: 37893154 PMC: 10604530. DOI: 10.3390/biomedicines11102781.


Virtual Design of 3D-Printed Bone Tissue Engineered Scaffold Shape Using Mechanobiological Modeling: Relationship of Scaffold Pore Architecture to Bone Tissue Formation.

Alshammari A, Alabdah F, Wang W, Cooper G Polymers (Basel). 2023; 15(19).

PMID: 37835968 PMC: 10575293. DOI: 10.3390/polym15193918.


Enhancing Polymethyl Methacrylate Prostheses for Cranioplasty with Ti mesh Inlays.

Nayak G, Palkowski H, Carrado A J Funct Biomater. 2023; 14(8).

PMID: 37623664 PMC: 10455644. DOI: 10.3390/jfb14080420.


Convergence of scaffold-guided bone regeneration principles and microvascular tissue transfer surgery.

Sparks D, Savi F, Dlaska C, Saifzadeh S, Brierly G, Ren E Sci Adv. 2023; 9(18):eadd6071.

PMID: 37146134 PMC: 10162672. DOI: 10.1126/sciadv.add6071.


References
1.
Hutmacher D, Schantz J, Lam C, Tan K, Lim T . State of the art and future directions of scaffold-based bone engineering from a biomaterials perspective. J Tissue Eng Regen Med. 2007; 1(4):245-60. DOI: 10.1002/term.24. View

2.
Bishop G, Einhorn T . Current and future clinical applications of bone morphogenetic proteins in orthopaedic trauma surgery. Int Orthop. 2007; 31(6):721-7. PMC: 2266667. DOI: 10.1007/s00264-007-0424-8. View

3.
Clements J, Carpenter B, Pourciau J . Treating segmental bone defects: a new technique. J Foot Ankle Surg. 2008; 47(4):350-6. DOI: 10.1053/j.jfas.2008.04.006. View

4.
Sanger C, Soto A, Mussa F, Sanzo M, Sardo L, Donati P . Maximizing results in craniofacial surgery with bioresorbable fixation devices. J Craniofac Surg. 2007; 18(4):926-30. DOI: 10.1097/scs.0b013e3180a771e9. View

5.
Theos C, Koulouvaris P, Kottakis S, Demertzis N . Reconstruction of tibia defects by ipsilateral vascularized fibula transposition. Arch Orthop Trauma Surg. 2008; 128(2):179-84. DOI: 10.1007/s00402-007-0301-3. View