No abstract

Introduction: The purpose of the present study was to investigate various factors of cleft palate and to analyze their effect on fistula occurrence following palatal muscle repair using intravelar veloplasty. Methods: A retrospective review of patients who underwent palatoplasty was performed. Primary palatoplasty was performed by a single surgeon in a single center. A total of 165 patients who underwent palatoplasty were enrolled. Primary palatoplasty with levator veli palatini muscle repair using intravelar veloplasty was performed. Three extrinsic factors (age, gender, and body weight) and 6 intrinsic factors (cleft width, ratio of cleft width to intermaxillary tuberosity distance, cleft anterior margin shape, uvula position, cleft lip, and radical intravelar veloplasty) were analyzed. Results: Palatal fistula occurred in 11 (6.67%) patients. The occurrence of fistula was significantly correlated with a specific Veau classification, that is, type II ( P = .041). Fistula tended to occur more frequently with a wide cleft palate ( P = .063), and the high-risk cutoff value of the width was 7.75 mm. Conclusions: A larger cleft width tended to increase the occurrence of fistula. Close observation and information about the higher risk of fistula formation should be given to patients with a large cleft width who underwent intravelar veloplasty.

The aim of this study was to analyze the effect of acellular dermal matrix (ADM) on fistula formation after primary palatoplasty using intravelar veloplasty for levator veli palatini muscle repair. This single-center retrospective study included patients who underwent primary palatoplasty with intravelar veloplasty for reorientation of the levator veli palatini muscles between April 2014 and March 2018. In the control group (group A) conventional intravelar veloplasty was performed, while in the ADM group (group B) intravelar veloplasty using ADM was performed. The study sample was composed of 162 patients, 81 in each of the 2 groups (A and B). In group B, securely dissected muscles were overlapped, and a pentagon-shaped ADM (AlloDerm, LifeCell Corp., Branchburg, NJ) of 1.6 mm mean thickness, 11.3 mm mean width, and 14.4 mm mean length was designed, and placed under the repaired levator muscle sling. The outcome variable was the occurrence of oronasal fistula within the first 6 months after surgery. Postoperative fistula formation was reported in 6 patients in group A (7.4%) and in 5 patients in group B (6.2%). There was no statistically significant difference between the 2 groups (P = 0.755). There were 7 cases of ADM exposure and 2 cases of wound dehiscence in group B. The results of this study demonstrated that ADM use did not have any disadvantage with respect to oronasal fistula complications after intravelar veloplasty for levator veli palatini muscle repair.