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Published on: November 8, 2019
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Non-suturing microvascular anastomosis in maxillofacial reconstruction- a comparative study
Surya Kiran Mudigonda1, Senthil Murugan2, K Velavan1
1Department of Oral & Maxillofacial Surgery, SRM Dental College and Hospital, Bharathi Salai, Ramapuram, Chennai, Tamil Nadu, 600089, India.
Summary
Non-suturing techniques for venous anastomosis significantly reduce ischemic time and improve patency compared to conventional microsuturing. These methods, including couplers, staplers, and Laser Assisted Vascular Anastomosis (LAVA), offer faster, more reliable results for tissue reconstruction.
Area of Science:
- Microsurgery and Vascular Anastomosis
- Tissue Reconstruction Techniques
- Surgical Innovation
Background:
- Conventional microsuturing is the traditional method for creating venous anastomoses in reconstructive surgery.
- Limitations of microsuturing include longer operative times and potential for leakage or delayed patency.
- Advancements in surgical technology have led to the development of non-suturing techniques for vascular anastomosis.
Purpose of the Study:
- To compare the advantages and disadvantages of non-suturing anastomotic methods against conventional microsuturing.
- To evaluate the efficacy of techniques such as couplers, staplers, and Laser Assisted Vascular Anastomosis (LAVA).
- To assess key parameters including anastomotic time, flap ischemic time, patency, and leakage.
Main Methods:
- Eighty patients undergoing hard and soft tissue reconstruction were randomly assigned to five groups.
- Group I: Conventional microsuturing; Group II: Fibrin sealant reinforced microsuturing.
- Groups III, IV, V: Non-suturing techniques (couplers, staplers, LAVA, respectively).
Main Results:
- Non-suturing groups (III, IV, V) demonstrated significantly reduced mean ischemic times (139-193 min) compared to sutured groups (I, II: ~256 min) (p < 0.001).
- Mean anastomotic times were substantially shorter in non-suturing groups (3.8-5.3 min) versus microsuturing groups (19.8-20.3 min) (p < 0.001).
- Immediate patency was achieved in all non-suturing groups, contrasting with 18.8% delayed patency in the conventional microsuturing group (p = 0.030); leakage was absent in non-suturing groups.
Conclusions:
- Non-suturing techniques for venous anastomosis offer significant advantages over conventional microsuturing.
- These methods result in reduced ischemic and anastomotic times, improved patency, and decreased leakage.
- Non-suturing techniques are recommended for venous anastomosis when clinically appropriate for reconstructive surgery.
