[Research progress in three-dimensional-printed bone scaffolds combined with vascularized tissue flaps for segmental...

Area of Science:

• Biomaterials Science
• Regenerative Medicine
• Surgical Innovation

Background:

• Segmental bone defects pose significant clinical challenges.
• Current repair methods often have limitations in promoting complete healing and functional restoration.

Purpose of the Study:

• To review and summarize recent advancements in repairing segmental bone defects.
• To highlight the combined use of three-dimensional (3D)-printed bone scaffolds and vascularized tissue flaps.

Main Methods:

• Literature review of studies on 3D printing technology for bone scaffolds.
• Analysis of combining various biomaterials scaffolds with different vascularized tissue flaps.
• Evaluation of factors influencing osteogenesis and vascular regeneration.

Main Results:

• 3D-printed scaffolds (polymer, bio-ceramic, metal) combined with vascularized flaps (omental, fascial, periosteal, muscular, bone) provide structural support and promote healing.
• Scaffolds facilitate osteogenesis and vascular regeneration by supplying blood to the defect site.
• Scaffold properties (mechanical, porous, biocompatible) and loaded active components (cells, growth factors) are crucial for efficacy.

Conclusions:

• The integration of 3D-printed scaffolds and vascularized flaps represents a novel strategy for segmental bone defect repair.
• This combined approach enhances material science with surgical techniques, improving clinical treatment outcomes.