[An experimental study of a cyanoacrylate biological adhesive in view of its use in the fixation of various fractures of the fingers]

Application of COMPONT Medical Adhesive Glue for Tension-Reduced Duraplasty in Decompressive Craniotomy

BACKGROUND The aim of this study was to evaluate the application of medical adhesive glue for tension-reduced duraplasty in decompressive craniotomy. MATERIAL AND METHODS A total of 56 cases were enrolled for this study from Jan 2013 to May 2015. All patients underwent decompressive craniotomy and the dura was repaired in all of them with tension-reduced duraplasty using the COMPONT medical adhesive to glue artificial dura together. The postoperative complications and the healing of dura mater were observed and recorded. RESULTS No wound infection, epidural or subdural hematoma, cerebrospinal fluid leakage, or other complications associated with the procedure occurred, and there were no allergic reactions to the COMPONT medical adhesive glue. The second-phase surgery of cranioplasty was performed at 3 to 6 months after the decompressive craniotomy in 32 out of the 56 cases. During the cranioplasty we observed no adherence of the artificial dura mater patch to the skin flap, no residual COMPONT glue, or hydropic or contracture change of tissue at the surgical sites. Additionally, no defect or weakening of the adherence between the artificial dura mater patch and the self dura matter occurred. CONCLUSIONS COMPONT medical adhesive glue is a safe and reliable tool for tension-reduced duraplasty in decompressive craniotomy.

Bond strength evaluation of cyanoacrylate-based adhesives and screws for bone fixation

INTRODUCTION

Bone graft is a very common procedure that is performed when bone volume needs to be increased before a dental implant. Screws and miniplates are the clinical standards for osteosynthesis. However, some disadvantages for this method have been reported, including artifacts on radiological images, infection, screw loosening, and the need to remove screws that interfere with the dental implants. Bone adhesives are a promising alternative for bone graft surgery.

PURPOSE

The aim of this study was to compare the shear bond strength of two cyanoacrylate-based adhesives and titanium screws for bone graft fixation.

METHODS

Pig jaw samples were cut into rectangular bars (2 × 6 × 20 mm) and bonded with a 5-mm overlap of N-butyl cyanoacrylate and ethyl cyanoacrylate, and 1.5-mm titanium screws were inserted into the center of the contact area. The blocks were fixed on a shear bond strength device that was coupled to a universal testing machine. The maximum force (N) was recorded on a computer and divided by the bonded area (in mm(2)) in order to calculate the bond strength (MPa). The data were statistically analyzed with ANOVA and Tukey's test (α = 0.05).

RESULTS

The shear bond strengths of the screws were significantly higher than both cyanoacrylate adhesives, which presented statistically similar bond strength means, and have the biomechanical potential to be used for bone fixation.

CONCLUSIONS

Ethyl cyanoacrylate is an inexpensive adhesive that has multiple purposes and can be considered as an alternative for bone fixation.

Use of cyanoacrylate in the coaptation of edges of surgical wounds

Cyanoacrylate has been used in several fields of different surgical specialties as an adhesive for closure of gingival flaps and in mucous and cutaneous lacerations. One of its advantages is that it has an excellent immunological response. In view of aesthetic needs, cyanoacrylate has been applied with satisfactory results, when compared with sutures. It presents better coaptation of edges of cutaneous and mucosal lesions, smaller residual scars, and biocompatibility. However, it is limited to areas of little tissue tension. This work attempts to provide a literature review with the aim of revealing the advantages of using tissue adhesives, especially cyanoacrylates, in wound coaptation in comparison with conventional methods.