Clinical trial NCT05515016: A Fatty Flap Taken From the Double Chin for Chin Enhancement: a New Surgical Technique
Official title: A Fatty Flap Sculpted From the Double Chin for a Better Face Profile: an Original Technique
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: NA
Conditions: Adiposity
Micrognathism
Keywords: Retrognathia
Mandibular advancement
Adipose tissue
Cervicoplasty
Lead sponsor: Mohamed Tahar Maamouri University Hospital
Sponsor class: OTHER
First posted: 2022-08-25
Enrollment: 10
Sex: ALL
Minimum age (years): 45
Maximum age (years): 52
Standard ages: ADULT
Accepts healthy volunteers: no
Allocation: NA
Intervention model: SINGLE_GROUP
Intervention model description: The same surgical procedure was performed on 10 participants. These participants had a double chin with skin redundancy and a receding chin. The result was evaluated with photos and chin advancement was measured with a Vernier caliper.
Primary purpose: TREATMENT

Brief summary: The double chin is a troublesome component of the lower third of the face. It gives an embarrassing and unpleasant facial appearance to both men and women leading them to ask for liposuction. Moreover, a "receding chin" causes blunting of the cervico-mental angle, a fleshy appearing neck, a disproportion in the profile line of the face with a prominent looking nose, and an irregular mandibular border. This study is about an innovative surgical procedure: Instead of doing liposuction of the double chin, the investigators used the fat of this area as a flap to improve a "receding chin". hence both the double chin and the receding chin are treated.

Detailed description: the surgical technique was performed on 10 participants. written informed consent was obtained from all the participants.

Description of the surgical technique:

The investigators began by delineating the undesirable subplatysmal fat located in the submental region, just below the subcutaneous fat. The skin redundancy assessed by the pinch test was excised. Under general anesthesia, an incision was made behind the submental crease followed by the excision of the skin excess. The subplatysmal fatty compartment was individualized through a subcutaneous dissection. Then, the lower part of the subplatysmal fat was cut to start its separation from the platysma muscle, thus obtaining a real vascularized fatty flap. This flap could be folded on itself, then easily turned over to be fixed on the thin layer of the pre-muscular fat overlying the chin. Hemostasis was performed correctly avoiding the establishment of drainage.

chin projection and submental rejuvenation were obtained. The advancement of the chin ranged from 3,5 to 12 millimeters. The stability of the translated fat was observed after surgery for more than two years.

Eligibility criteria: Inclusion Criteria:

* the presence of a "double chin" with slightly redundant skin and a "receding chin" causing a fleshy appearing neck, and a disproportion in the face profile

Exclusion Criteria:

* any history of a precedent surgery on the neck, the presence of a traumatic or a burn scar on the cervical region.

Primary outcomes:
measure: Chin advancement measure
timeFrame: The change of chin projection at 6 months after the surgical procedure
measure: Chin advancement measure
timeFrame: The change of chin projection at 12 months after the surgical procedure
measure: Chin advancement measure assessing the stability of the result
timeFrame: The change of chin projection at 24 months after the surgical procedure
measure: Fat deposits removal in the submental region
timeFrame: At 6 months after the surgical procedure
measure: Fat deposits removal in the submental region
timeFrame: At 12 months after the surgical procedure
Secondary outcomes:
measure: The evaluation of the surgical scar
timeFrame: At 6 months after the surgical procedure
measure: The evaluation of the surgical scar
timeFrame: At 12 months after the surgical procedure
Other outcomes:
Locations:
Study officials:
affiliation: Teaching hospital Mohamed Tahar Maamouri, nabeul
name: IMEN T MEHRI TURKI, Dr
role: PRINCIPAL_INVESTIGATOR
References:
citation: Shamban AT. Noninvasive Submental Fat Compartment Treatment. Plast Reconstr Surg Glob Open. 2016 Dec 14;4(12 Suppl Anatomy and Safety in Cosmetic Medicine: Cosmetic Bootcamp):e1155. doi: 10.1097/GOX.0000000000001155. eCollection 2016 Dec.
citation: Strauss RA, Abubaker AO. Genioplasty: a case for advancement osteotomy. J Oral Maxillofac Surg. 2000 Jul;58(7):783-7. doi: 10.1053/joms.2000.7266.