Evolution of craniofacial surgery

Indications for Furlow Double-Opposing Z-Plasty in Patients with Velopharyngeal Insufficiency following 2-Flap Palatoplasty

BACKGROUND

Various surgical methods have been developed for treating velopharyngeal insufficiency (VPI); however, the choice of surgical treatment is controversial. The pharyngeal flap, which is commonly used, has a high success rate but frequently leads to airway complications. Furlow double-opposing Z-plasty (DOZ) does not deform the velopharyngeal port; therefore, it is expected to show good speech outcomes while reducing airway complications if an appropriate indication is noted. This study aimed to identify indications for DOZ in cases of VPI after palatoplasty.

METHODS

Nonsyndromic patients who underwent palatoplasty were prospectively followed from 2008 to 2016, and those diagnosed with VPI were treated with DOZ. Preoperative facial computed tomography (CT) and postoperative nasometric assessment results were examined. Surgical indication was set based on a 30% threshold value for postoperative nasalance.

RESULTS

Comparing the preoperative CT measurements of both groups, high need ratio (NR), wide width of the nasopharynx (WNP), and long velopharyngeal depth (VPD) were contributing factors to VPI occurrence ( P < 0.05). Analyzing preoperative CT and postoperative speech evaluation results, a linear relationship was observed between preoperative NR, WNP, and VPD and postoperative nasalance. In cases where NR was less than 0.81, WNP was less than 27.64 mm, and VPD was less than 20.34 mm, DOZ showed favorable outcomes ( P < 0.05).

CONCLUSIONS

Preoperative CT evaluation should be performed in patients with VPI. When WNP, VPD, and NR values are small, DOZ can achieve sufficient correction of VPI and reduce the risk of airway complications. In cases where the indication range is exceeded, the pharyngeal flap is considered.

CLINICAL QUESTION/LEVEL OF EVIDENCE

Risk, III.

Surgical management of severe cherubism persisting into early adulthood: a case report and literature review

Cherubism is a rare fibro-osseous condition characterized by bilateral expansion of the mandible and maxilla. Due to its rarity, treatment guidelines for cherubism have not been clearly established. Observation without surgical intervention is typically recommended, as cherubism often regresses spontaneously after puberty. However, a surgical intervention may be necessary if aggressive lesions lead to severe complications. In this report, we present a case involving surgical management of cherubism that did not spontaneously regress until early adulthood. An 18-year-old man was diagnosed with cherubism, presenting characteristic upward-looking eyes and a swollen face. He strongly desired surgical management. Gross contouring of the mandible was performed using an osteotome. Subsequently, delicate contouring was performed by bone burring and curettage. The remaining multiple locular bony defects were filled with demineralized bone matrix. No major complications, including infection and hematoma, occurred during the 8-month follow-up period. The facial contour remained stable without the aggravation of cherubism. The patient was satisfied with the cosmetic results. Considering that cherubism is a rare disease globally, with few reported cases in Korea, and that treatment guidelines are not clearly established, we anticipate that the results of this case will contribute to the development of future protocols for treating cherubism.

Cranioplasty and temporal hollowing correction with a three-dimensional printed bioresorbable mesh and double vertical suture anchor muscle sling: a case report

Postoperative temporal hollowing is a common complication of craniotomy. Damage and repositioning of the temporalis muscle can lead to a depression in the temporal side of the skull with inferior bulging, worsening aesthetic outcomes. We report a case of cranioplasty with three-dimensional (3D) printed mesh involving an additional correction using a temporalis muscle sling to help address this problem. A 3D-printed bioabsorbable mesh was prepared based on preoperative facial computed tomography, and was fixed to the hollowed area for tissue augmentation. The temporalis muscle was elevated and fanned out to its original position, and a sling was attached to a screw that was fixed to the mesh. For reinforcement, an additional sling was attached to another screw fixed to the mesh 2–3 cm vertically above the first screw. Aesthetic results were confirmed immediately after surgery and later during outpatient follow-up. Both depression and lateral bulging were resolved, and there was no delayed drooping of the temporalis muscle on 6-month follow-up. There were no complications, and the patient was satisfied with the appearance. This is a simple yet effective technique with a low risk of complications, and should be considered for postoperative temporal hollowing patients, especially those with severe lateral bulging.