Mordified Restoration of Tensor Veli Palatini in Cleft Palate Repair

Not Applicable

Completed

• Conditions: Cleft Palate
• Interventions: Procedure: cleft palate repair

• Registration Number: NCT04366674
• Lead Sponsor: Peking Union Medical College Hospital

Brief Summary

to study the benefical audiological and/or otological effect by mordified restoration of tensor veli palatini in cleft palate repair compared to traditional Langenbeck's repair and merely levator veli palatini restoration.

Detailed Description

71 patients with cleft palate received surgery were divided into 3 groups. Group 1: patients who received Langenbeck surgery without specific restoration of levator veli palatini or tensor veli palatini. Group 2: patients who received palate surgery with special levator veli palatini restoration. Group 3: patients who received palate surgery with modified tensor veli palatini restoration. The conductive auditory brainstem response and 226 Hz tympanometry were used to test the audiological and otological status of the three groups. Preoperative and postoperative results were compared intragroup and intergroup.

Study Timeline

• Study Start: 2013-01-01
• Primary Completion: 2019-01-31
• Study Completion: 2019-06-30
• Status Verified: 2020-04
• Study First Submitted: 2020-04-26
• Study First Submitted QC: 2020-04-26
• Last Update Submitted: 2020-04-26
• Study First Posted: 2020-04-29
• Last Update Posted: 2020-04-29

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 71

Inclusion Criteria

• Clinical diagnosis of cleft palate.
• Primary palate repair.

Exclusion Criteria

• Severe general disease
• Confirmed hereditary hearing loss or neuropathic hearing loss.
• Received any kind of audiological or otological therapy before.
• Patients and/or his/her don't want to continue the clinical trial.

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Langerbeck's repair	cleft palate repair	Langerbeck's repair of cleft palate,without specific restoration of levator veli palatini or tensor veli palatini. Incisions along the margins of the cleft at the junction of oral and nasal mucosa. Lateral relaxing incisions were performed and the mucoperiosteal flap of hard palate were elevated on both sides except the ones with only soft palate cleft. The anterior end of the mucoperiosteal flap may be cut off for the purpose of tension relieving and would be resutured to the anterior area during closing. In the soft palate, the division was made between the oral mucous layer and the palatal musculature layer. Hamulus were broken for closing the cleft without tension. Closing was done by two seperated layers, one layer of nasal mucosa-palatal muscle, and one layer of oral mucosa.
restoration of levator veli palatini	cleft palate repair	The incision was made similar to Langerbeck's repair. During disection, the levator veli palatini was identified after the elevation of flap. The levator veli palatini was separate from the oral and nasal mucosa. During closing, the anterior end of levator veli palatini was rotated towards the midline and the two muscle bundle from the two sides were sutured in the midline. In this process, the tensor veli palatini was not intentionally identified or dissected.
mordified restoration of tensor veli palatini	cleft palate repair	Incision was made similar to Langerbeck's repair. During disection, the tensor veli palatini was identified after flap elevation. Its tendinous fibers was released from but still connected to the pterygoid process without breaking the hamulus or cutting off the tendinous fibers. If the tension is too strong during suturing, the tensor tendon could be partly dissected laterally meanwhile be kept continuity medially so that the tensor veli palatini could be rotated more medially. The levator veli palatini, tensor veli palatini, together with the palatine aponeurosis and the nasal mucosa from two sides were sutured in the middle line. The tensor veli palatini may not be jointed to the contralateral one directly.

Primary Outcome Measures

Name	Time	Method
Hearing level	0 to 3 months before surgery	Auditory brainstem response was tested in all three groups before surgery. The air conductive hearing threshold was used to assess the hearing level.
The otological status of middle ear	0 to 3 months before surgery	226 tympanometry was tested in all three groups before surgery. The results of 226 Hz tympanometry were classified based on Liden/Jerger classification. Four classes of tympanometry results were included.