Mandibular morphology and spatial position following one-stage simultaneous repair of complete unilateral cleft lip and palate.
OBJECTIVE
To assess mandibular structure and spatial position following one-stage simultaneous repair of the unilateral cleft lip and palate.


METHODS
Forty boys and 17 girls with complete unilateral cleft lip and palate who underwent one-stage simultaneous repair of the cleft by the same surgeon at the age of 9.23 months (standard deviation = 1.74) were selected. Lateral cephalograms taken at the age of approximately 10 years were analyzed and were compared with a sex- and age-matched control group that consisted of individuals with Angle Class I, no crossbite, positive overbite <5 mm, mild crowding (Incisor Irregularity Index <3.5 mm), and harmonious facial build.


RESULTS
No intergroup differences were demonstrated regarding structure of the cranial base. The mandible was found to be retruded and at a larger inclination to the cranial base as compared with controls. Both total mandibular length (ArGn) and length of the mandibular body were larger in the control group, at <2 mm. Height of the ramus and gonial angle were similar in both groups. Intergender comparison showed few significant differences in control subjects only (SN, SGo, and NMe variables).


CONCLUSIONS
The mandible, following a one-stage simultaneous repair of cleft, was found to be retrusive, and the length of mandibular body was <2 mm shorter than that of the controls.
Fudalej
Piotr
P
Center for Craniofacial Disorders, Department of Child Surgery, Institute of Mother and Child, Warsaw, Poland. pfudalej@gmail.com
Obloj
Barbara
B
Dudkiewicz
Zofia
Z
Hortis-Dzierzbicka
Maria
M
D016022:Case-Control Studies; D002508:Cephalometry; D002648:Child; D002971:Cleft Lip / Q000150:complications / Q000601:surgery*; D002972:Cleft Palate / Q000150:complications / Q000601:surgery*; D005260:Female; D006801:Humans; D008297:Male; D008334:Mandible / Q000002:abnormalities*; D019647:Oral Surgical Procedures / Q000379:methods*; D011044:Poland; D019651:Plastic Surgery Procedures / Q000379:methods; D063173:Retrognathia / Q000209:etiology / Q000473:pathology*; D019291:Skull Base / Q000033:anatomy & histology