Absorbable versus Non-Absorbable Sutures in Paediatric Facial Trauma - A Cosmetic Assessment

Paediatric age group is most vulnerable to trauma. Children often suffer facial injuries. Though many topical skin adhesives and strips are available in the market which have given excellent cosmetic results, deeper injuries especially along the lines of high tension need suturing both with buried and skin sutures. Different variety of sutures are available in the market which are used as per the choice of the surgeon. Children are more apprehensive when it comes to suture removal. So use of absorbable sutures in place of non-absorbable sutures in skin can save the children from this fear factor. MethodsA prospective study was done in the department of plastic surgery from May 2012 to Dec. 2013 with an objective of studying the outcome of plain catgut suture as skin sutures versus non-absorbable skin suture Nylon in facial trauma in the paediatric age group. Chromic catgut was used as buried suture in both groups. All the patients presenting in emergency department with facial trauma with age 10 years or less were included in the study. Skin sutures, where needed removal, were removed on 5th post-operative day followed by follow up on 7th post-operative day, 3rd month and 8th month during which cosmetic assessment of scar was done. 25 patients who presented first in emergency and fulfilled the study criteria were sutured with 5 - 0 chromic catgut buried sutures and skin suture used was 6 - 0 Nylon and this group was labelled group A. Next 25 patients who presented in emergency for suturing were sutured with 5 - 0 chromic catgut as buried and plain catgut as skin suture. This group was labelled as Group B. Cosmetic outcome was assessed on 7th post-operative day, 3rd month and 8th month by using Beusang E cosmetic scar assessment scale based on two parameters which included colour and texture of scar.1 Statistical analysis was done with continuous variables expressed as Mean ± S.D. and categorical variables were expressed as count (percentage). Chi-square was used to compare the categorical variables between groups or Fisher exact test was used. ResultsOn 7th post-operative day follow up, out of 50 patients, 25 patients (50 %) in whom nylon was used as skin suture, 4 patients (16 %) had mismatch of colour. All scars were smooth in texture. In rest 25 patients (50 %) in whom plain catgut was used as a skin suture, 1 (4 %) patient had mismatch of the colour. None of the patients had frank pus in both groups & hypertrophic scar was seen in one patient. On 3rd month follow up, Group A patients with nylon as skin suture, 1 (4 %) patient showed hypertrophic scar whereas in Group B (8 %) patients had hypertrophic scar. On 8th month follow up, both group A & B had colour mismatch of 12% with firm texture of scar in 8% patients. ConclusionsThere is no long-term differences in cosmetic outcomes and complication rates between absorbable catgut suture and commonly used nylon sutures in the repair of facial trauma in paediatric age groups. So, absorbable sutures are acceptable alternative to non-absorbable suture especially in paediatric age group, keeping in mind their apprehensive nature and fear of suture removal.

Effects of different materials for partial sciatic nerve ligation on glial cell activation in rat models of chronic constriction injury / 南方医科大学学报

OBJECTIVE@#To compare the effects of different materials for partial sciatic nerve ligation on glial cell activation in the spinal cord in a rat model of chronic constriction injury (CCI).@*METHODS@#SD rats were randomly divided into the sham group (=15), silk suture CCI group (=15) and chromic catgut CCI group (=14). The mechanical withdrawal threshold (MWT) and thermal withdrawal latency (TWL) of the rats were detected at 3, 7, 11 and 15 days after the operation. The changes in the sciatic nerve, the activation of spinal cord glial cells and the expression of inflammatory factors were observed using Western blotting and RT-PCR.@*RESULTS@#At 3 to 15 days after the surgery, MWT and TWL of the rats were significantly lower in silk suture group and chromic catgut group than in the control group ( < 0.05), and was significantly lower in chromic catgut group than in the silk suture group ( < 0.05) at 3 days after the surgery. The results of sciatic nerve myelin staining showed that the sciatic nerve was damaged and demyelinated in both the ligation groups. The expressions of CD11b, GFAP, IL-1β and TNF-α in the two ligation groups were similar and all significantly higher than those in the control group ( < 0.05). IL-6 mRNA level was significantly higher in chromic catgut group than in the silk suture group ( < 0.05).@*CONCLUSIONS@#The CCI models established by partial sciatic nerve ligation with silk suture and chromic catgut all show glial activation, and the inflammatory response is stronger in chromic catgut group.

Gross and histologic evaluation of abdominal adhesions associated with chromic catgut and polypropylene sutured enteropexies in dog / Evaluación macroscópica e histológica de las adherencias abdominales asociadas a enteropexias suturadas con catgut crómico y polipropileno en perros

The gross and histologic patterns of abdominal adhesions formed by the use of chromic catgut and polypropylene suture materials were evaluated in dogs. Gross and histologic examinations did not reveal significant difference (p>0.05) in the degree of adhesions observed at enteropexy sites in both suture materials. The use of polypropylene with superior suture qualities should be considered instead of chromic catgut for procedures in which adhesion is desired in the dog.

Fueron evaluados los patrones macroscópicos e histológicos de las adherencias abdominales formadas por el uso de catgut crómico y materiales de sutura de polipropileno. Los exámenes macroscópicos e histológicos no revelaron diferencias significativas (p> 0,05) en el grado de adherencias observadas en los sitios de la enteropexia en ambos materiales de sutura. El uso de suturas de polipropileno con mejores cualidades debe ser considerado en lugar del catgut cromado para procedimientos en los que la adherencia en el perro es deseada.

Clinical Effects of Punctal Occlusion Using Chromic Catgut

The treatment of dry eye patients is based on the management of the main causes of the disease. When the process of disease continues regardless of various conventional treatments, punctal occlusion can be employed. We used collagen implant. 1-0 and 2-0 chromic catgut in 33 eyes of dry eye patients to evalute the efficacy of punctal occlusion using chromic catgut. Symptoms(grade 0 to 3) were improved from the first week and persistently decreased in symptom grade during four weeks' follow-up period. The superficial corneal punctate erosion(grade 0 to 3) was improved after 2 weeks of the procedure in the whole 33 eyes(p<0.05). There was no superiority between collagen implant and chromic catgut. There was no improvement by score of the Schirmer test and the BUT in each group(p<0.05). We concluded that chromic catgut was easily applicable, very effective, inexpensive and showed less complication compared with collagen implant. We suggested that it could be used more widely in punctal occlusion in dry eye patients.