Technique of the Buccal Fat Pad Flap as an Alternative for the Surgical Defect of Pleomorphic Adenoma

Use of buccal fat pad-derived stem cells cultured on bioceramics for repair of critical-sized mandibular defects in healthy and osteoporotic rats

OBJECTIVE

To compare new bone formation in mandibular symphysis critical-sized bone defects (CSBDs) in healthy and osteoporotic rats filled with bioceramics (BCs) with or without buccal fat pad mesenchymal stem cells (BFPSCs).

MATERIALS AND METHODS

Thirty-two adult female Sprague-Dawley rats were randomized to two groups (n = 16 per group): group 1 healthy and group 2 osteoporotic (with bilateral ovariectomy). The central portion of the rat mandibular symphysis was used as a physiological CSBD. In each group, eight defects were filled with BC (hydroxyapatite 60% and β-tricalcium phosphate 40%) alone and eight with BFPSCs cultured on BC. The animals were sacrificed at 4 and 8 weeks, and the mandibles were processed for micro-computed tomography to analyze radiological union and bone mineral density (BMD); histological analysis of the bone union; and immunohistochemical analysis, which included immunoreactivity of vascular endothelial growth factor (VEGF) and bone morphogenetic protein 2 (BMP-2).

RESULTS

In both groups, CSBDs filled with BC + BFPSCs showed greater radiological bone union, BMD and histological bone union, and more VEGF and BMP-2 positivity, compared with CSBDs treated with BC alone at 4 and 8 weeks.

CONCLUSIONS

The application of BFPSCs cultured on BCs improves bone regeneration in CSBDs compared with BCs alone in healthy and osteoporotic rats.

CLINICAL RELEVANCE

Our results may aid bone regeneration of maxillofacial CSBDs of both healthy and osteoporotic patients, but further studies are necessary.

Surgery for Cystadenoma of the Retromolar Pad Area With Reconstruction Using a Buccal Fat Pad Flap: A Case Report

Salivary gland tumors can also occur rarely in the retromolar area, though common near the junction of hard and soft palate, labial mucosa, and buccal mucosa. Most salivary gland tumors in the retromolar pad area are malignant and should be excised. The cystadenoma is a rare, benign, salivary gland tumor. Importantly, incomplete resection of this tumor can lead to recurrence or cervical lymph node metastasis. We reported herein a case of cystadenoma arising in the right retromolar pad area in a 63-year-old male patient who underwent reconstruction using a buccal fat pad flap (BFPF) after the surgical removal of the tumor with a 10-mm margin left a defect with bone exposure. No evidence of recurrence or complication was found at the postoperative, three-year follow-up.

New Tunneled Buccal Fat Pad Flap for Palatal Reconstruction

In the palatal defects due to surgical resection, flap selection is very important for a correct reconstruction. Different methods have been suggested over the time, however the pedicled buccal fat pad is a simple, effective, reliable flap for reconstruction after palate tumor resection. The aim of the present study is to introduce a new surgical technique for palate reconstruction with pedicled buccal fat pad flap exposing the advantages. The Authors performed this procedure in 17 patients in order to treat medium-sized oncologic surgical defect of palate region in the period between 2016 and 2019. Complete wound healing after only 4 weeks without complication after 12 months follow-up was observed. This is the first cases series described with this new technique.

Palatal reconstruction with tunnellized Bichat fat pad flap after tumour resection

BACKGROUND

Reconstruction of palate defects following tumour ablative surgery can be a challenging problem. Different methods have been suggested over the time for the reconstruction of postoperative palatal defects. Since the first report of the Bichat fat pad flap in1977, it has become one of the most commonly used flaps for the reconstruction of palate after tumour excision. We report our results using the tunnellized Bichat fat pad (BFP) flap for 23 cases of palate reconstruction after minor salivary glands tumour excision.

METHODS

The Authors performed a tunnellized bichat fat pad flap for primary reconstruction of small- medium-sized surgical defects of the palate in 23 patients suffering from minor salivary glands palatal tumors in the period between 2016 and 2019. Each case was reviewed for primary pathologic findings, wound healing, postoperative complications.

RESULTS

All 23 tunnellized BFP procedures showed excellent recovery and uneventful follow-up. With this technique after 12 months follow-up complete wound healing after only 4 weeks without complication was observed.

CONCLUSIONS

The tunnellized BFP flap is useful, easy, and uncomplicated new alternative method for primary reconstruction of small to medium-sized palatal surgical defects, that can be performed with a very low morbidity. Submucosal tunnel for the pedicle passage introduced by the Authors adds some advantages in final outcomes with less discomfort for the patients, proving to be a technique able to adds itself to surgical reconstructive technique available today.