|Year : 2018 | Volume
| Issue : 3 | Page : 344-348
Local tongue flap for posterolateral tongue defects after partial glossectomy: a prospective cohort study
Mahmoud G Hagag, Mahmoud A Shahin, Asem Fayed, Ahmed F El-Kased
Department of General Surgery, Faculty of Medicine, Menofia University, Shebeen El-Kom, Egypt
|Date of Submission||13-Feb-2018|
|Date of Acceptance||12-Mar-2018|
|Date of Web Publication||17-Aug-2018|
Mahmoud G Hagag
Department of General Surgery, Faculty of Medicine, Menoufia University Hospitals, Shebeen El-Kom, 32511
Source of Support: None, Conflict of Interest: None
Objectives Tongue is a common site of squamous cell carcinoma of the oral cavity (OTSCC) with the subsequent high rate of local or regional recurrence owing to the complexity of its structure. In the present prospective study, we aimed to evaluate the novel local tongue flap technique for reconstruction of posterolateral tongue defects after partial glossectomy.
Patients and methods The present study was approved by the Institutional Review Board of the Menoufia University Hospital. We conducted a prospective cohort study on 17 patients with OTSCC who underwent partial glossectomy. Local tongue flap was performed to reconstruct posterolateral tongue defects after partial glossectomy. Patients were followed for 2 months postoperatively.
Results Most patients were male (70%), and the mean age of included patients was 57.47±9.53 years. Tumors were locally excised with mean safety margins of 1.06±0.48 cm and 64% of the patients with OTSCC underwent neck dissection. Postoperatively, 82.5% of the patients exhibited a good tongue healing result with adequate tongue function. Three (17.6) patients experienced tongue infection with partial dehiscence, which healed completely after 2 weeks with conservative treatment.
Conclusion Local tongue flap is an effective technique for reconstruction of posterolateral tongue defects after partial glossectomy.
Keywords: partial glossectomy, reconstruction, tongue flap, tongue healing
|How to cite this article:|
Hagag MG, Shahin MA, Fayed A, El-Kased AF. Local tongue flap for posterolateral tongue defects after partial glossectomy: a prospective cohort study. Egypt J Surg 2018;37:344-8
|How to cite this URL:|
Hagag MG, Shahin MA, Fayed A, El-Kased AF. Local tongue flap for posterolateral tongue defects after partial glossectomy: a prospective cohort study. Egypt J Surg [serial online] 2018 [cited 2019 May 27];37:344-8. Available from: http://www.ejs.eg.net/text.asp?2018/37/3/344/239116
| Introduction|| |
Squamous cell carcinoma of the oral cavity (OSCC) is one of the most commonly encountered malignancies of head and neck, and it accounts for more than 90% of all cases of head and neck cancers . In addition, OSCC is the sixth most common cancer in the world and accounts for nearly 3% of all cancer cases, according to 2017 global cancer statistics . Tongue is a common site of OSCC with the subsequent high rate of local or regional recurrence owing to the complexity of its structure . Surgical removal of the affected side of the tongue, especially with T1 or early T2 carcinoma, remains the main line of management of oral tongue squamous cell carcinoma (OTSCC) . However, reconstruction of the resulted tongue defects through the primary closure of the remaining tongue or skin grafting may result in distorted tongue, and such distortion may significantly lead to defective tongue ability to control food and liquid in the oral cavity, salivary pooling, and speech problems .
In the recent years, a novel technique for reconstruction of tongue defects through local tongue flap has been proposed . The local tongue flap procedure is based mainly on the rotation of the remaining tongue, which offers restoration of a full-bodied mobile tongue. Lam et al.  described a case with a 2-cm (T2N0M0) squamous cell carcinoma that involved the posterior right lateral border of the tongue, and the sliding anterior hemitongue flap resulted in a full-bodied tongue in the posterior oral cavity with excellent tongue mobility, speech ability, and swallowing.
In the present prospective study, we aimed to evaluate local tongue flap for reconstruction of posterolateral tongue defects after partial glossectomy.
| Patients and methods|| |
We followed the recommendations of the Strengthening the Reporting of Cohort Studies in Surgery during the preparation of the present prospective study .
The study was conducted in accordance with the International Conference on Harmonization Good Clinical Practice guidelines, the Declaration of Helsinki, and applicable local regulatory requirements and laws. The study was approved by the Institutional Review Board of the Menoufia University Hospital.
Study design and setting
We conducted a prospective cohort study at General Surgery Department, Menoufia University Hospital from May 2013 to January 2016.
In the present study, we recruited 17 patients who presented with tongue ulcers and were diagnosed with T1 or T2 OTSCC involving the posterior part of the tongue after incisional biopsy. Metastatic workup was done using radiological methods, and neck nodes assessment was done using ultrasound and computed tomography scan. Patients with more advanced lesions (T3 or T4) and those with previous tongue excision procedures were excluded.
Local tongue flap technique
Initially, patients underwent partial hemiglossectomy with adequate margins (≥0.5 cm) of mucosa and soft tissue, and neck dissection − if indicated − ([Figure 1] and [Figure 2]). The remaining usable tongue was divided down through the genioglossus muscle at the median fibrous septum, and the divided part was carried anteriorly ([Figure 3]). A curvilinear incision was then extended to the contralateral anterior tongue and the remaining anterior half of the resected tongue was rotated along the curvilinear incision and moved posteriorly to be sutured to the remaining of the posterior part of the tongue. The affected side was sutured to the unaffected side by two layers.
- Division of the remaining tongue along the median septum.
- Preserving the anterior third of the tongue.
- Rotation posteriorly along the curvilinear incision.
- Suturing the flap.
Patients were given fluid on the first day after the operation, followed by soft diet to the end of the first week. The regular feeding was then continued from the beginning of the week 2 ([Figure 4]). The included patients were followed postoperatively and assessed for tongue healing and neck complications. The total duration of follow-up was 2 months ([Figure 5]), and the patients were assessed at the week 1, week 2, 1 month, and 2 months postoperatively.
The statistical analysis was carried with statistical package for the social sciences software (SPSS, version 24; SSPS Inc., Chicago, Illinois, USA). Frequency tables with percentages were used for categorical variables, and descriptive statistics (mean and SD) were used for numerical variables.
| Results|| |
The mean age of included patients was 57.47±9.53 years old, and the majority of them were male (70%). Approximately half of them were either smokers or diabetic, and six patients were both smokers and diabetic. The mean tumor size was 2.04±0.85 cm. Tumors were locally excised with mean safety margins of 1.06±0.48 cm. Overall, 64% of the patients with OTSCC underwent neck dissection, and the mean number of the positive lymph nodes was 3±2.13. [Table 1] shows the characteristics of included patients.
Postoperatively, 82.5% of the patients exhibited a good tongue healing with adequate tongue function. Three (17.6) patients experienced tongue infection with partial dehiscence, which healed completely after 2 weeks with conservative treatment. Regarding neck complications, 17.6% of the patients had infections and dehiscence, whereas only two patients had seromas ([Table 2]).
| Discussion|| |
Local tongue flap is a novel technique for the restoration of fully functioning tongue following partial hemiglossectomy. In the present prospective study, local tongue flap was an effective technique for reconstruction of posterior tongue defects after partial glossectomy of OTSCC. Most included patients (82.4%) exhibited a good tongue healing postoperatively, with a low rate of tongue infections which healed completely after conservative treatment.
The primary management of early OTSCC is based on partial glossectomy, with or without neck dissection. However, the subsequent tongue defects represent a reconstructive challenge that required special attention from the surgeon. Functional restoration is the main goal of reconstruction of tongue defects through providing both bulk and mobility . Currently, the most commonly used surgical options for reconstruction of partial tongue defects are primary closure, skin grafting (either by full thickness or split thickness), pedicled flaps, and free flaps ,. However, there is a growing body of evidence that shows a defect in the restoration of fully functioning tongue with those techniques. A previous systematic review by Lam and Samman  reported a significant decline in speech and swallowing function following free flap reconstruction limited to either the oral tongue or the base of tongue in early postoperative period; in addition, speech and swallowing outcomes were markedly declined following free flap reconstruction involving both oral and base of tongue.
To overcome the limitations of the commonly used surgical options, local tongue flap was proposed to restore a fully bodied mobile tongue. Lam et al.  reported excellent tongue mobility, speech ability, and swallowing following sliding anterior hemitongue flap. Moreover, another report showed that the sliding tongue flap, following partial glossectomy of T1/T2 cancers in the anterior half of the tongue, resulted in natural bilateral symmetry of the tongue and good cosmetic appearance postoperatively . The sliding posterior tongue flap of mid-tongue defect showed similar results, as well . In the present prospective study, the local tongue flap was associated with high rate of good tongue healing and a limited number of wound infections.
Regarding postoperative complications, 17.6% of the patients in the present study had infections and dehiscence, whereas only two patients had seromas. This low rate of neck complications is similar to rates associated with other reconstruction techniques, Nueangkhota et al.  reported no incidence of wound dehiscence or infection following reconstruction of the tongue defect through nasolabial island flap in seven patients with small to moderate OTSCC.
| Conclusion|| |
Local tongue flap is an effective technique for reconstruction of posterolateral tongue defects after partial glossectomy. Local tongue flap is associated with high rate of good healing and low rate of complications. Further large-scale studies are still needed to establish the effectiveness of this technique.
Financial support and sponsorship
Conflicts of interest
There are no conflicts of interest.
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[Figure 1], [Figure 2], [Figure 3], [Figure 4], [Figure 5]
[Table 1], [Table 2]