Background: This study updates our institutional experience with modified Furlow palatoplasty, evaluating speech outcomes and incidence of secondary speech surgery throughout development and at skeletal maturity.
Methods: Nonsyndromic patients undergoing primary modified Furlow palatoplasty between 1985 and 2005 with post-operative speech evaluations were retrospectively reviewed. Secondary speech surgery and Pittsburgh Weighted Speech Scale (PWSS) scores prior to secondary speech or orthognathic surgeries were assessed in the 5-7, 8-11, 12-14, and 15+ age groups and analyzed by Veau cleft type.
Results: Five hundred fifty-one patients with 895 total speech assessments were analyzed. Of 364 patients followed to age 15 or older, 19.8% underwent secondary speech surgery. Speech assessment of patients aged 15 or older without prior secondary speech surgery showed competent velopharyngeal mechanisms in 77% of patients. PWSS nasal emission scores were worse in the 5-7 age range (p=0.02), while resonance scores remained stable throughout development (p=0.2). Patients with Veau type I or II clefts had worse overall PWSS classifications in the age 5-7 and 8-11 age groups (p=0.01, p=0.03), with greater odds of secondary speech surgery relative to those with Veau type III (OR 2.9, p<0.001) or IV clefts (OR 3.6, p=0.001).
Conclusions: Most patients undergoing primary modified Furlow palatoplasty do not require secondary speech surgery and achieve socially acceptable speech at skeletal maturity. However, Veau type I and II clefts are associated with increased risk for early velopharyngeal dysfunction and secondary speech surgery. Incidence of secondary speech surgery was 19.8%, an increase from our previously reported rate of 8%.
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