Abstract:Objective To investigate the difference of the white membrane formed after coblation tonsillectomy and conventional tonsillectomy and the feasibility of the white membrane can be used as the observation index of wound recovery.Methods From October 2018 to October 2019, 60 patients who underwent tonsillectomy in our department were randomly divided into two groups: 30 patients who underwent coblation tonsillectomy (coblation tonsillectomy group) and 30 patients who underwent conventional tonsillectomy (conventional tonsillectomy group). The formation of white membrane, the time of forming white membrane, and the time of falling off were compared between the two groups. Besides above, 30 ICR mice were selected. The oral mucosa on both sides of the mice were prepared with coblation and conventional. The pathological sections were made after obtaining the white membrane, and the histomorphological characteristics of the white membrane were compared.Results The formation of white membrane in the coblation tonsillectomy group was better than that in the conventional tonsillectomy group (P < 0.05). The time of forming white membrane in the coblation tonsillectomy group was earlier than that in the conventional tonsillectomy group (P < 0.05). The time of falling off of white membrane in the coblation tonsillectomy group was later than that in the conventional tonsillectomy group (P < 0.05). The pathological results of the white membrane on the oral mucosa of mice showed that the white membrane formed by coblation was composed of denatured collagen and inflammatory cells, while the white membrane formed by conventional operation was composed of infiltrated inflammatory cells and proliferated fibrous tissue.Conclusion Coblation tonsillectomy has the advantages for early formation of white membrane and good growth of white membrane, which is helpful to the recovery of patients after operation. However, the time of falling off of white membrane is longer than that of conventional tonsillectomy. Through the analysis of pathological results of white membrane, it is suggested that the traditional peeling off has more advantages in the prevention of infection after tonsillectomy.