XXXX in orthognathic surgery: a clinical study.

@entity1 @entity353
OBJECTIVE: To analyse weight change, body composition change and Body Mass Index change in @entity1 undergoing orthognathic surgery. DESIGN: A service evaluation was undertaken in orthognathic @entity1 pre-operatively and at 4 weeks post-surgery. SETTING: Queen Elizabeth Hospital Birmingham outpatient department. SUBJECTS: Thirty-one @entity1 scheduled for single- or two-jaw orthognathic surgery and rigid internal fixation. METHODS: Immediately pre-operatively and at 4 weeks post-surgery the following information was gathered: (1) @entity1 height; (2) @entity1 weight (kg); (3) @entity1 Body Mass Index; and (4) @entity1 body fat percentage. RESULTS: In the 4-week post-operative period, the average @entity353 was -4  96 kg (range: -9  6 to +3  0 kg), with a body fat reduction of -3  07% (range: -5  80% to +2  30%) and an average reduction in Body Mass Index of -1  63 (range: -3  4 to +0  8). There was no statistically significant difference in @entity353 (P=0  1562) or body fat composition change (P=0  2391) between single- or two-jaw surgery. There was no statistically significant difference in @entity353 (P=0  4858) or body fat composition change (P=0  5321) between male and female @entity1 . CONCLUSIONS: @entity353 observed was similar to that reported in studies using inter-maxillary fixation. Closer psychological and dietetic support is needed for @entity1 who have a low normal or underweight Body Mass Index. Better and more bespoke tailored Oral Nutritional Supplementation must be provided for all orthognathic surgery @entity1 to potentially reduce this significant @entity353 .
