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  • Title: A predictor of a postoperative fistula after double-opposing Z-plasty in bilateral cleft lip and palate patients.
    Author: Kobayashi S, Yabuki Y, Kokubo K, Yasumura K, Hirakawa T, Fukawa T, Yamamoto K.
    Journal: J Plast Reconstr Aesthet Surg; 2022 Jun; 75(6):1931-1936. PubMed ID: 35181246.
    Abstract:
    Furlow double-opposing Z-plasty (FDOZ) as primary palatoplasty for the bilateral cleft lip and palate (BCLP) closure often leads to a palatal fistula formation in cases with wide clefts. We examined the utility of the calculated maximum closable cleft width to determine the feasibility of a direct palatal closure without lateral incisions. In this retrospective study, we analyzed consecutive patients with a BCLP who were treated for 5 years from 2009. In sixty-three BCLP patients, the following dimensions were measured preoperatively: an actual distance between maxillary tuberosities (Actual X); actual cleft height, calculated from the line joining the maxillary tuberosities to the cleft edge (Actual Y); and actual cleft width at the hard-soft palate junction (Actual Z) and calculated maximum cleft width requiring a direct closure (CMZ). Six months postoperatively, the relationships between the fistula occurrence and actual Z/CMZ were examined. Median values (interquartile range) of Actual X, Y, and Z and CMZ were 35.0 (33.0-39.0) mm, 7.0 (6.0-8.0) mm, 10.0 (8.0-11.0) mm, and 4.6 (2.7-5.7) mm, respectively. The median age at operation was 8.0 (7.0-17.0) months. Fistulae at the hard-soft palate junction developed postoperatively in three cases with more than a 10-mm cleft width (4.76%). A receiver operating characteristic (ROC) curve analysis indicated that actual Z was a better predictor of a postoperative fistula formation than CMZ. An actual cleft width was a better predictor of the fistula occurrence than a calculated maximum cleft width after FDOZ for a BCLP repair. The low fistula rate of FDOZ suggested that FDOZ could be used to close the palate with less than a 10-mm cleft width.
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