The clinic application of microsurgical technique in treatment of facial soft tissue laceration Xinsheng HUANG1,a , Daofeng LIU1,band Yanbin HUANG1,c 1 Shengli oilfield central hospital No. 31, Jinan Road #1, Dongying City, Shandong Prov. 257034, China Key words: microsurgical technique; facial laceration; scar. Abstract: Objective: To investigate the application of microsurgical technique in treatment of facial laceration. Method: 64 patients who had facial laceration were randomly divided into study group and control group. Microsurgical technique was used on wounds of study group for debridement. Conventional debridement was used in control group. Wounds’ Healing were observed. Results: First healing rate was 93.88% in the study group and 60.98% in control group. Healing time was 5± 0.2 days in study group and 7 ± 0.4 days in control group. Scar in study group were obvious less than that in control group when reexamined at 3, 6 month. Patients’ satisfaction was 95.92% in study group and 68.29% in control group. There were statistically differences when comparing all the index of two groups (P <0.05). Conclusion: Using microsurgical technique in treatment of facial soft tissue laceration was better than Conventional debridement. 1 Instruction The face is in the exposure, and it is easy to be hurt. The scar and the deformity which are caused by the injury have significant effect to the appearance of the patients. The current technology can be not satisfied with the patients. And the microsurgical technology has the obvious advantage that can reduce the misdiagnosis and irritating organization. And the microsurgical technology is used in the process of facial laceration, and the effect is satisfied. 2 data and method 2.1 clinical data During June 2010 to December 2012 in our hospital, there were 90 patients with facial laceration, the age is from 3 years old to 65 years old, and the average age is 33.4 years old, and 56.7% is male, and 43.3% is female. And there were 24 frontal cases, 19 zygomatic cases, 17 buccal cases, 19 lips cases and 11 jaw cases. And the length of the wound is from 0.8cm to 15.5cm, and the average length is 7.1cm. There were 37 linear wound cases, and 53 irregular wound cases. And there were 35 superficial wound cases, and 55 cases with muscular layer and deep tissue injury. All the patients have not the damage of brain and other important organs, and signed the informed consent and agreed the process. All the patients were divided into two group, and one with 49 persons is group A, and the other with 41 persons is group B. 2.2 materials and equipment Debridement suture package, operation magnifier, microsurgery instrument (micro vascular clamp, tweezers, scissors, needles, blood vessels, clips, approximator, blood vessel expander, confrontation, miniature rinse needles). 2.3 operating steps a. First of all, research team disinfected the wound, and did local anesthesia, and clean up the wound with magnifying glass to remove the foreign body as far as possible. And pay attention to whether facial nerve damage, parotid gland duct injury or fracture happen. b. Secondly, subcutaneous tissue was thread with 4-0 absorbable suture line, and skin was thread with 6-0 absorbable suture line to make sure the skin suture without tension, and the epidermis was thread with 7-0 non-invasive cosmetic nylon thread suture. c. The other group was process with traditional method. 2.4 evaluation criteria a. healing rate of the wound: A class: good healing, B class: poor healing, inflammation but not fester, C class: fester. b. healing time of the wound: from the day of suture to the day of dismantled. c. scar after hurt: check three times after three and six months since injury, and the Vancouver scar scale(vss) was used to score the scar in color, thickness, blood vessels distribution, flexibility and so on to value the scar. And the severity of the scar was valued by the score, and the total score was 15 points. d. patients satisfaction: check three times after three and six months since injury. And there were four class. A class was very satisfied, and there was no scar, B class was satisfied, and the scar was not obvious, and C class was not satisfied, and the scar was so obvious that it would influence the social activity, and D class was very upset, and the scar was so obvious that the patients would have psychological obstacles in the social activities. 2.5 statistics: SPSS13.0 statistical software was used to analyze the data. And the healing time was tested by t. 3. Results Healing rate was 93.88%, and the healing rate of the contact group was 60.98%, and the results was valid(p<0.05). And the average healing time was 5±0.2 days, and the average healing time of the other group was 7±0.4 days. After three months, the score of the scar after hurt was 5 ±0.1, and the score of the other group was 9±0.3. After six months, the score of the scar after hurt was 3 ±0.3, and the score of the other group was 6±0.4. The satisfaction was 93.88% after three months, and the other group was 68.29%. And all the results was valid, and p<0.05. And the results were shown in Table 1, 2, 3. Table 1 the healing rate of the two groups(n=90 cases) A class B, C class total A class rate Test 46 3 49 93.88% Contrast 25 16 41 60.98%* Total 71 19 90 78.89% Table 2 the score of the scar after hurt(VSS) Three months Max Six months Min Average Max Min Average Test 7 2 5±0.1 5 1 3±0.3 Contrast 12 5 9±0.3* 10 4 6±0.4** Table 3 Satisfaction of the two groups Three months satisfied upset Six months satisfaction satisfied upset satisfaction Test 46 3 93.88% 47 2 95.92% Contrast 24 17 58.54%* 28 13 68.29%** Total 70 20 77.78% 75 15 83.33% 4 Discussions The facial soft tissue laceration is very popular, and it accounts for 65% of the maxillofacial trauma[1]. And the patients should be process the surgical treatment if the situation is allowed as soon as possible. And the traditional method often induce more scars and the patients were not satisfied. And the patients pay more and more attention to the beauty and function after injury. Microsurgical technique embodies the minimum invasion principle, and it was a revolution of surgical techniques. And it has used in nerve injury repair and pipe repair[2~4]. In this research, first healing rate was 93.88% in the study group and 60.98% in control group. Healing time was 5± 0.2 days in study group and 7 ± 0.4 days in control group. Scar in study group were obvious less than that in control group when reexamined at 3, 6 month. Patients’ satisfaction was 95.92% in study group and 68.29% in control group. There were statistically differences when comparing all the index of two groups (P <0.05). The results indicates that using microsurgical technique in treatment of facial soft tissue laceration was better than Conventional debridement. References [1] Qiu Wei. Oral and Maxillofacial Surgery. Beijing, people's medical publishing house, 2008,188. [2] Mao Chi, Yu Guangyan. 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