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Year : 2017  |  Volume : 4  |  Issue : 3  |  Page : 50-60

Reliability and validity of tomographic anthropometric parameters in patients with cleft lip and palate

Fernando Ortiz Monasterio, Craneofacial Anomalies Foundation at Health Services, Angeles Group, Angeles del Pedregal Hospital, Mexico City, Mexico

Correspondence Address:
Tatiana Izchel Castillo Torres
Hospital Angeles Del Pedregal, Oficce # 6, Heroes de Padierna, 10700 Mexico City
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/jclpca.jclpca_81_17

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Background: The main stigma of cleft lip and palate (CLP) is the nasal asymmetry, anthropometry helps to evaluate results, the computerized tomography (TC) assesses the maxillary conditions, and the three-dimensional (3D) reconstruction can aide to evaluate soft tissues. Repeatability and validity of tomographic anthropometric parameters of nasal symmetry have not been estimated before. Aims: The aim of the study was to estimate the repeatability and validity of tomographic nasal symmetry anthropometric parameters in patients with CLP. Settings and Design: This study was a cross-sectional study. The sample size was 63 measurements in patients with CLP 9–18 years. Variables such as sex, age, clinics and tomographic anthropometric measurements, Sn-C, Sn-Prn, A, Gsup-Gbase, Ac-Prn, C, D, Nt-Nm/Nb-Nl, La med-La lat, Sa inf-Sa sup, Sn-Al, B, Sn-Ac, Sn-Sbal were used. Subjects and Methods: Two measurements of reconstructed anthropometric tomographic 3D were evaluated twice to assess repeatability. Validity of tomographic was calculated comparing with clinical anthropometric measurements (gold standard). Statistical Analysis: Intraclass correlation coefficient was used to assess the repeatability and the individual differences for criterion validity. Results: Fifty-one subjects were included, mean age was 12.82 ± 2, and 64.71% were males. Sn-C, Sn-Prn, A, Gsup-Gbase, C, D, Nt-Nm/Nb-Nl, La med–La lat, Sa sup–Sa inf, Sn-Al, B, Sn–Ac, and Sn-Sbal had a repeatability CCI above 0.70. For validity, Sn-Prn, Prn-Ac, D, Nt-Nm/Nb-Nl, La med-La lat, Sa sup-Sa inf, Sn-Al, B, Ac-Sn, and Sn-Sbal tomographic measurements showed a mean difference ≤1 mm in comparison with clinical anthropometric measurements. Conclusions: Nine tomographic measures were closer to clinical measurements. The tomographic measures are a good way to evaluate nose symmetry in patients with CLP.

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