Fios de sutura

Medeiros, Aldo Cunha; Araújo‐Filho, Irami; Carvalho, Marília Daniela Ferreira

doi:10.20398/jscr.v7i2.11437

Cited by 12 publications

(14 citation statements)

References 1 publication

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“…16 The three forms of PDO threads (mono, cog, and screw threads) are absorbed into the body over 6 months by hydrolysis and their rate of total loss of resistance occurs in approximately 63 days, which limits their clinical efficiency and long-term patient satisfaction. 17,18 On the other hand, PLA threads were developed after PDO threads. They are made from a biocompatible polymer derived from lactic acid.…”

Section: Discussionmentioning

confidence: 99%

Patient Satisfaction with Absorbable Anchoring Facial Threads

2021

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This study aimed to evaluate satisfaction in terms of facial appearance, quality of life, and adverse effects in patients undergoing the facial thread lifting procedure using the absorbable facial threads anchored on the superficial and deep temporal fascias. The charts of patients for whom facial anchored thread lifting was performed using absorbable threads between February 2017 and September 2019 were reviewed. Demographic data including age and gender as well as data from the Face-Q scales were collected. Descriptive analysis was made for the adverse effects 1 week after the procedure. The mean value of adverse effects scales was compared 1 and 2 weeks after the procedure and also the mean values of facial appearance and quality-of-life scales were compared at baseline, 6 months, and 12 months after the procedure. All recruited subjects were females with a mean age of 43.42 years. There was a statistically significant decrease in the rate of adverse effects following the procedure between the first and second week. The mean difference in patients' perceived age 6 and 12 months after the procedure was statistically significant when compared with baseline. The psychological distress significantly decreased and the psychological function improved 6 and 12 months after the procedure. The overall satisfaction with facial appearance increased significantly after 6 months with a mean of 20.08. This was maintained at 12 months. The satisfaction in skin appearance, cheeks, nasolabial folds, marionettes, lower face, and jawline appearances improved significantly 6 months after the procedure. This was also maintained at 12 months. Face lifting using the polycaprolactone threads anchored on the temporalis fascia showed a significant improvement in the quality of life and facial appearance. The adverse effects are tolerable starting 2 weeks after the procedure.

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Section: Discussionmentioning

confidence: 99%

Patient Satisfaction with Absorbable Anchoring Facial Threads

2021

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“…In PDO threads, biodegradation is caused by penetration of the fluids that break the molecules of the suture material. [7] Their rate of total loss of resistance occurs in about 63 days[89] and the degradation occurs by excision in the amorphous regions of the material. [10] Excision begins after 15 days and changes of the interfibrillar microstructure finally cause rupture of the thread, but in the present study, it was observed much earlier.…”

Section: Discussionmentioning

confidence: 99%

In vitro degradation of polydioxanone lifting threads in hyaluronic acid

Suárez-Vega

Maldonado

Ortíz

et al. 2019

J Cutan Aesthet Surg

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Recently, some clinicians have proposed implanting polydioxanone (PDO) threads imbibed in hyaluronic acid (HA), arguing that this may reinforce the lifting effects. However, this is controversial because PDO sutures are hydrophilic and the presence of HA could increase the rate of hydrolysis. The aim of this study was to demonstrate the degradation of PDO lifting threads in HA through ultramicroscopy. It was a qualitative research and preclinical trial. Three, 1-cm-long, segments of 23-G PDO threads were immersed in 1.5-mL non-crosslinked HA in previously labeled, sterile microcentrifuge tubes. These were observed by ultramicroscopy at 4× and 10× after 24, 48, and 72 h. Microphotographs taken after 24 h show structural changes in the fibers, presenting an increase in interlaminar spaces and dilution of violet pigmentation. At 48 h, degradation continues. PDO hygroscopy is observed as aqueous content between the peripheral layers and the central core of the thread. At 72 h, as the pigment is released, larger empty spaces are observed in the central column of the thread, and there is disorganization of the peripheral fibrils with fraying all along the fiber. HA induces rapid biodegradation of the PDO thread by hydrolysis beginning 24 h after contact of the thread with the biomaterial. The non-crosslinked HA is a powerful catalyzing agent for hydrolytic degradation of the PDO thread, because this thread is highly hydrophilic. Clinically, embedding PDO threads in HA accelerates biodegradation of the suture.

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“…Both are synthetic and monofilament yarns; however, the polydioxanone yarn is absorbable by hydrolysis, with an absorption time of approximately 90-180 days, causing small inflammatory reaction when compared to other suture materials such as catgut and cotton. Polypropylene is inabsorbable and biologically inert, even in the presence of infection, with high chemical resistance to acids, alkalis and enzymes 12 .…”

Section: Introductionmentioning

confidence: 99%

Primary Sphincteroplasty Comparing Two Different Stitches in Anal Fistula Treatment: Experimental Study in Rats

Tanus

Santos

Dourado

et al. 2019

ABCD, arq. bras. cir. dig.

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Background: Anal fistula is by definition the communication between the rectum or anal canal with the perineal region, which may be epithelialized and has cryptoglandular origin in 90% of cases. There are a large number of techniques for successfully treating trans-sphincteric fistulas of 20-50%, including primary sphincteroplasty, but it is not clear whether the material used would influence the outcome. Aim: To analyze the efficacy of polydioxanone and polypropylene wire in primary post-fistulotomy sphincteroplasty in the treatment of trans-sphincteric fistulas in rats. Methods:Thirty Wistar rats had transfixation of the anal sphincter with steel wire, which remained for 30 days for the development of the anal fistula. After this period, it was removed and four groups were formed: A (control) without treatment; B (fistulotomy) submitted to such procedure and curettage only; C (polidioxanone) in which sphincteroplasty was performed after fistulotomy with polydioxanone wire; D (polypropylene) submitted to the same treatment as group C, but with polypropylene wire. After 30 days, euthanasia and removal of the specimens were performed for qualitative histopathological analysis, measurement of the area between the muscular cables edges and evaluation of the degree of local fibrosis. Results: There was persistence of the anal fistula in all animals of group A. There were no significant differences between groups B, C and D regarding the distance of the muscular cables (p=0.078) and the degree of fibrosis caused by the different treatments (p=0.373). Conclusions:There was no difference between polydioxanone and polypropylene wires in post-fistulotomy primary sphincteroplasty, and this technique was not superior to simple fistulotomy in relation to the distance of the muscular cables nor did it present differences in relation to the degree of local fibrosis.

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Fios de sutura

Cited by 12 publications

References 1 publication

Patient Satisfaction with Absorbable Anchoring Facial Threads

Patient Satisfaction with Absorbable Anchoring Facial Threads

In vitro degradation of polydioxanone lifting threads in hyaluronic acid

Primary Sphincteroplasty Comparing Two Different Stitches in Anal Fistula Treatment: Experimental Study in Rats

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