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Closure of Huge Palatal Fistula in an Adult Patient with Isolated Cleft Palate: A Technical Note

Rahpeyma, Amin DDS*; Khajehahmadi, Saeedeh DDS

Plastic and Reconstructive Surgery - Global Open: February 2015 - Volume 3 - Issue 2 - p e306
doi: 10.1097/GOX.0000000000000279
Ideas and Innovations
Iran

Summary: Closure of huge palatal fistula surrounded by fully erupted permanent dentition in the adult patients with cleft is a challenge. Posteriorly based buccinator myomucosal flap is a neurovascular pedicled flap, with inherent nature of thin thickness, saliva secretion, and axial pattern blood supply. Vicinity of donor site to the palate and low donor-site morbidity are the other advantages. It is an ideal choice in such situation. In this article, the details of surgical technique and the effectiveness of this method are presented.

From the *Department of Oral and Maxillofacial Surgery, Oral and Maxillofacial Diseases Research Center, School of Dentistry, Mashhad University of Medical Sciences, Mashhad, Iran; and Department of Oral and Maxillofacial Pathology, Dental Research Center, School of Dentistry, Mashhad University of Medical Sciences, Mashhad, Iran.

Received for publication November 5, 2014; accepted January 5, 2015.

Disclosure: The authors have no financial interest to declare in relation to the content of this article. This study was supported by a grant from the Vice Chancellor of Research of Mashhad University of Medical Sciences. The Article Processing Charge was paid for by the authors.

Saeedeh Khajehahmadi Dental Research Center of Mashhad University of Medical Sciences Vakilabad Boulevard Mashhad 91735–984, Iran E-mail: khajehahmadis@mums.ac.ir

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Small palatal fistula in patients with cleft often results from wound dehiscence of the mucoperiosteal flaps that are used for palatal closure.1 Huge palatal fistula in the palate after cleft palate surgery is due to near-total avascular necrosis of the elevated flaps.2 Closure of this fistula cannot be obtained by conventional methods via hinged flaps for nasal floor reconstruction and local palatal flaps for oral side closure.

In such situation, there is a need for regional flaps, such as tongue flap, temporal flap, temporoparietal flap, facial artery musculomucosal flap, and submental flap.3–7 Free flaps such as radial forearm flap are also indicated for large palatal closure.8

Posteriorly based buccinator myomucosal flap is a good choice in such situation. With a case, details of surgical technique and effectiveness of this method are presented.

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PATIENT AND SURGICAL TECHNIQUE

Patient

The patient was a 22-year-old woman with a large fistula in the palate, extended posteriorly from primary palate to soft palate, 3 cm width × 5 cm length. The width of the fistula was more than half the width of the palate (Fig. 1). The upper and lower dental arches were complete and third molars were also had been erupted. Occlusal relationship was normal with class I canine/molar relationship and no palatal stricture.

She was born with palatal cleft without cleft lip and alveole. In the early childhood, she underwent surgical repair of the palatal fistula with unfortunate results. Her chief complaints were difficulty in eating and hypernasal speech.

Bilateral posteriorly based buccinator myomucosal flaps were used to close the fistula.

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Surgical Technique

The procedure was performed under general anesthesia with nasotracheal intubation. The maxillary erupted wisdom teeth were removed. In the region between the right pterygomandibular raphe and posterior margin of the fistula, a turnover flap composed of mucosa and underlying connective tissue was elevated and turned backward. The same procedure was done in the left side. Great care was paid to not including the soft palate muscles in these flaps.

These 2 flaps in the right and left were sutured together in the midline. This maneuver provides nasal-side closure in posterior half of the fistula.

In anterior half of the fistula, small semicircular mucoperiosteal flap with the width equal to 3 mm was reflected around the fistular anterior margin.

From left cheek region, a long posteriorly based buccinator myomucosal flap was designed and used for oral side coverage of the fistula. This flap was sutured to the small elevated mucoperiosteal flap that is described above. Another short length posteriorly based buccinator myomucosal flap was reflected and was used to cover the raw surface of the soft palate. This flap has no role in oral side coverage of the palatal fistula but acts as a supplementary flap to avoid secondary healing of denuded soft palate (Fig. 2).

Donor site was reconstructed with bilateral buccal fat pad mobilization.

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DISCUSSION

Closure of huge oronasal fistula (ONF) in the cleft patients is a challenge for reconstructive surgeons.9 Tongue flap application for closure of very wide palatal fistula has width limitation.10 Dorsal tongue flaps that have been recommended for large palatal perforation closure can be anteriorly or posteriorly based, although the anteriorly based is more recommended.11,12

The width of dorsal flaps that is recommended for large palatal fistula closure should be 20% larger than the width of ONF while the remaining tongue could be approximated primarily.13

Temporal and temporoparietal fascial flaps need the incision in the scalp, and the fear of the injury to the frontal branch of the facial nerve and alopecia of the incision line are the other concerns. In the case of temporal flap, there is need for the reconstruction of the donor site or mobilization of the posterior part. Both of the flaps (temporal and temporoparietal) need transmaxillary transfer for palatal reconstruction in the case of fully erupted teeth and complete maxillary dentition in class I occlusal relationship.14,15

Facial artery musculomucosal flap is a good option for palatal fistula closure. Superiorly based pedicle flap can cover the fistula with maximum 2.5 cm width, but it needs edentulous space in posterior quadrant to pass the flap pedicle and need the second surgery for pedicle division.16

Submental flap needs extraoral submental skin incision, and there is risk of injury to the marginal mandibular branch of facial nerve. Reverse flow variant is suitable for palatal reconstruction.17 Free radial forearm flaps are very reliable but need special training and have donor-site morbidity.18

Posteriorly based buccinator myomucosal flap has the advantage of replacing the lost tissue with the same type of tissue: “ideal reconstruction.”19

Vicinity of donor site to the palatal region, avoiding extraoral skin incision, and minimal donor-site morbidity are the other advantages.20 Its blood supply comes from buccal artery (a branch of maxillary artery), and it is a neurovascular axial pattern flap, so the return of sensibility in the flap is anticipated.21 It is a thin flap, so the patient can be extubated at the end of operation. Saliva secretion by this flap is another benefit. This flap has indications in cleft palate surgery during the primary palatoplasty in wide palatal clefts for lengthening the soft palate and decreasing the chance of velopharyngeal insufficiency. It has also been reported for closure of the fistula in the junction of the soft and hard palate.22–24

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CONCLUSION

Posteriorly based buccinator myomucosal flap should be considered as an option for closure of the huge ONF in adult patients with cleft palate.

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REFERENCES

1. Kaban LB, Pogrel MA, Perrott DH Complications in Oral and Maxillofacial Surgery. 19971st ed Philadelphia: W.B. Saunders Co:285
2. Booth PW, Schendel SA, Hausamen JE Maxillofacial Surgery. 19991st ed Edinburgh Churchill Livingstone:1085–1086
3. Pigott RW, Rieger FW, Moodie AF. Tongue flap repair of cleft palate fistulae. Br J Plast Surg. 1984;37:285–293
4. van der Wal KG, Mulder JW. The temporal muscle flap for closure of large palatal defects in CLP patients. Int J Oral Maxillofac Surg. 1992;21:3–5
5. Parhiscar A, Har-El G, Turk JB, et al. Temporoparietal osteofascial flap for head and neck reconstruction. J Oral Maxillofac Surg. 2002;60:619–622
6. Shetty R, Lamba S, Gupta AK. Role of facial artery musculomucosal flap in large and recurrent palatal fistulae. Cleft Palate Craniofac J. 2013;50:730–733
7. Rahpeyma A, Khajehahmadi S, Nakhaei M. Submental artery island flap in reconstruction of hard palate after wide surgical resection of verruccous carcinoma, two case reports. Iran J Otorhinolaryngol. 2013;25:177–181
8. Christiano JG, Dorafshar AH, Rodriguez ED, et al. Repair of recurrent cleft palate with free vastus lateralis muscle flap. Cleft Palate Craniofac J. 2012;49:245–248
9. Ashtiani AK, Emami SA, Rasti M. Closure of complicated palatal fistula with facial artery musculomucosal flap. Plast Reconstr Surg. 2005;116:381–386
10. Kim MJ, Lee JH, Choi JY, et al. Two-stage reconstruction of bilateral alveolar cleft using Y-shaped anterior-based tongue flap and iliac bone graft. Cleft Palate Craniofac J. 2001;38:432–437
11. Charan Babu HS, Bhagvandas Rai A, Nair MA, et al. Single layer closure of palatal fistula using anteriorly based dorsal tongue flap. J Maxillofac Oral Surg. 2009;8:199–200
12. Johnson PA, Banks P, Brown AE. Use of the posteriorly based lateral tongue flap in the repair of palatal fistulae. Int J Oral Maxillofac Surg. 1992;21:6–9
13. Vasishta SM, Krishnan G, Rai YS, et al. The versatility of the tongue flap in the closure of palatal fistula. Craniomaxillofac Trauma Reconstr. 2012;5:145–160
14. Demas PN, Sotereanos GC. Transmaxillary temporalis transfer for reconstruction of a large palatal defect: report of a case. J Oral Maxillofac Surg. 1989;47:197–202
15. Arvier JF, Molla MR, Fitzpatrick B, et al. Trans-antral temporalis transfer for the repair of adult cleft palates. Aust Dent J. 1997;42:307–314
16. Pribaz J, Stephens W, Crespo L, et al. A new intraoral flap: facial artery musculomucosal (FAMM) flap. Plast Reconstr Surg. 1992;90:421–429
17. Rahpeyma A, Khajehahmadi S. Oral reconstruction with submental flap. Ann Maxillofac Surg. 2013;3:144–147
18. Schwabegger AH, Hubli E, Rieger M, et al. Role of free-tissue transfer in the treatment of recalcitrant palatal fistulae among patients with cleft palates. Plast Reconstr Surg. 2004;113:1131–1139
19. Rahpeyma A, Khajehahmadi S. Buccinator-based myomucosal flaps in intraoral reconstruction: a review and new classification. Natl J Maxillofac Surg. 2013;4:25–32
20. Rahpeyma A, Jafarian AH, Khajeh Ahmadi S, et al. A schwannoma of the soft palate in a child: histological and immunohistochemical features and surgical method. Iran J Otorhinolaryngol. 2012;24:95–99
21. Bozola AR, Gasques JA, Carriquiry CE, et al. The buccinator musculomucosal flap: anatomic study and clinical application. Plast Reconstr Surg. 1989;84:250–257
22. Mann RJ, Fisher DM. Bilateral buccal flaps with double opposing Z-plasty for wider palatal clefts. Plast Reconstr Surg. 1997;100:1139–1143–discussion 1144–1145
23. Hens G, Sell D, Pinkstone M, et al. Palate lengthening by buccinator myomucosal flaps for velopharyngeal insufficiency. Cleft Palate Craniofac J. 2013;50:e84–e91
24. Nakakita N, Maeda K, Ando S, et al. Use of a buccal musculomucosal flap to close palatal fistulae after cleft palate repair. Br J Plast Surg. 1990;43:452–456
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