Up to 30 % of patients with Treacher Collins syndrome may have a cleft of soft and/or hard palate. Typically there is no cleft of the alveolus or lip. Soft tissue repair is usually indicated and the need for bone grafting would be unusual.
Palate repair is most commonly performed using a palatal lengthening procedure with an intra-velar veloplasty with repair of the muscle and mucosa (Wardil-Kilner or Furlow etc.).