Postoperative Orthognathic Surgery Edema Assessment With and Without Manual Lymphatic Drainage.

Objective: To evaluate the effects of manual lymphatic drainage (MLD) on facial edema and pain in patients who underwent orthognathic surgery from patient and professional perspectives and clinical measures. Methods: It is a randomized double-blind clinical trial, where 30 patients who underwent bimaxillary orthognathic surgery were divided into 2 groups (treatment and placebo). One group (treatment) received MLD from 2nd postoperative day, besides cryotherapy and postoperative medications. The other group (placebo) received cryotherapy, medications, and manual superficial sliding movements as placebo. For edema evaluation, facial measurements with tape and photographs were used. To evaluate patients' perception, visual analog scale for pain and edema was used. In statistical analysis, quantitative data were analyzed using Student t test for normally distributed variables and Mann-Whitney test for non-normal to find differences between groups; 5% significance level was adopted. Results: No difference was found between groups in the amount of maximum developed edema (P = 0.290) nor on what day the edema peak occurred (P = 0.091). However, it was found that treatment group showed faster and greater regression of swelling compared with placebo (P

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