3D modeling of anterior 2/3rds glossectomy reconstruction: A volume based donor site evaluation.

OBJECTIVE: Anterior 2/3rds glossectomy results in significant patient morbidity due to speech and swallowing impairment. Microvascular free flap reconstruction compensates for large volume defects. Flap volume is based on the adipose content of the donor site and varies by patient body mass index (BMI) and donor site location. We sought to correlate flap thickness at different donor sites with patient BMI to determine optimal donor site selection. METHODS: Patients with CT scans of the oral cavity, thorax and lower extremity were identified and included. The volumes of the anterior 2/3rds of the tongue were measured and recorded using computed tomography-generated modeling. Pre-muscular tissue thicknesses at anterolateral thigh (ALT), deep inferior epigastric artery (DIEP), latissimus dorsi, and parascapular donor sites were measured. The donor site adequency was defined as reconstructing the tongue volume within 10% of the ideal volume required and stratified based on patient BMI. RESULTS: In 144 patients, the average anterior 2/3rds glossectomy defect was 100.3 cm3. Glossectomy defect size was highly correlated with BMI (p < 0.001). The DIEP flap had the largest volume (155.4 cm3), followed by latissimus (105.6 cm3), parascapula (97.8 cm3), and ALT (60.5 cm3). For patients with BMI ≤ 30, the DIEP flap best reconstructed native tongue volume (up to 113 % of native tongue volume). In patients with BMI > 30.1, native tongue volumes were approximated by the latissimus flap (89-92 % of native tongue) and parascapular flap (85-95 % of native tongue volume). In BMI > 30.1 the DIEP flap provided excess tissue bulk (129-135 % of native tongue volume). CONCLUSION: The DIEP flap more closely approximates the volume needed to reconstruct anterior two-thirds tongue defects for BMIs ≤ 30. The subscapular system flaps provided the best volume match for BMIs > 30 and the DIEP flap provided excess tissue bulk which could be adjusted in the reconstruction process.

Reconstruction techniques using free jejunal transfer for total pharyngolaryngectomy with total glossectomy.

BACKGROUND: Total pharyngolaryngectomy is sometimes combined with total glossectomy for advanced hypopharyngeal or cervical esophageal cancers involving the tongue base. The optimal reconstruction method for total pharyngolaryngectomy with total glossectomy has not been established due to a considerable diameter mismatch between the floor of mouth and the esophageal stump. This report describes two reconstruction methods using free jejunal transfer. METHODS: Five consecutive patients who underwent total pharyngolaryngectomy with total glossectomy were included, with a mean age of 67.0 (range 55-75) years. Primary tumors included tongue, hypopharyngeal, cervical esophagus, and laryngeal cancers. The mean defect size was 17.0 (16-19) × 6.8 (6-7) cm. Surgical techniques involved either a simple incision or a two-segment method to address the size mismatch between the jejunum and the floor of mouth. In the simple incision method, a longitudinal cut was made to the antimesenteric or paramesenteric border of a jejunum wall to expand the orifice. In the two-segment method, a jejunal graft was separated into two segments to reconstruct the floor of mouth and the cervical esophagus, and these segments were connected with a longitudinal incision to the cervical esophageal segment to form a funnel-shaped conduit. RESULTS: Of the five patients, three underwent the simple incision method and two the two-segment method. Postoperative pharyngoesophagography showed a smooth passage for all patients. Postoperative courses were uneventful except for one flap loss due to arterial thrombosis. Four patients achieved oral feeding, while one became gastric-tube dependent. At a mean follow-up of 22.1 (4-39) months, one patient required tube feeding, two tolerated full liquid, and two consumed a soft diet. CONCLUSIONS: Both the simple incision and two-segment methods achieved satisfactory swallowing function. The choice between these reconstruction methods may depend on the extent of resection of the posterior pharyngeal wall.

Neurotized profunda artery perforator flap for subtotal tongue reconstruction - Prospective case series.

BACKGROUND: Total or subtotal glossectomy defects cause significant functional deficits in swallowing and speech and subsequently impair patients' quality of life (QOL). Recently, the profunda artery perforator (PAP) flap has emerged as a potential alternative for reconstructing extensive glossectomy defects. While previous studies assessing recovery of neurotized anterolateral thigh (ALT) flaps in head and neck reconstruction reported superior sensory recovery, improved swallow function, and improved overall patient satisfaction in patients with neurotized flaps vs. non-neurotized ALT flap reconstruction, PAP flap neurotization has not been described and systematically assessed in head and neck patients. METHODS: Six patients underwent subtotal tongue reconstruction with neurotized PAP flaps at the authors' institution from May 2022 until August 2023. A branch of the posterior femoral cutaneous nerve of the PAP flap was coaptated to the lingual nerve. Two-point discrimination, Semmes-Weinstein monofilament, pain, and temperature assessments were conducted at 3, 6, and 12 months postoperatively on the neo-tongue. The MD Anderson speech and deglutition scales and the EORTC-QLQ-H&N35 were used to record functional outcomes and QOL. RESULTS: The mean age was 69 ± 4 years, and the mean body mass index was 25 ± 7 kg/m2. Neo-tongue median 2-point discrimination at the tip improved from >10 mm at 3 months to 6 mm at 12 months. All patients had protective pain and temperature perception at the neo-tongue tip at the 6-month follow-up. Speech and swallowing functions were similar at the 12-month follow-up to data on neurotized ALT flaps from literature. No neuropathic pain was reported at the donor site at the 6-month follow-up. CONCLUSIONS: This is the first case series of PAP flap neurotization in head and neck patients, suggesting potential functional advantages with minimal donor-site morbidity. LEVEL OF EVIDENCE: V Case Series.

The Depth of Invasion and Level IV Cervical Node Metastasis in Patients with Clinically N0 Tongue Cancer.

BACKGROUND: The accurate indication for level IV dissection is crucial for preventing complications such as phrenic nerve damage and chylous fistulas in clinically N0 tongue cancer. Although the depth of invasion is an established independent risk factor for occult lymph node metastasis in tongue cancer, its relationship with level IV metastasis has not been evaluated. This study investigated the relationship between the depth of invasion and level IV nodal metastasis in clinically N0 tongue cancer. METHODS: We retrospectively investigated clinical N0 patients who underwent glossectomy and level I-IV neck dissection. We examined lymph node metastasis, risk factors, and the relationship between depth of invasion and metastasis. RESULTS: Our study included 58 patients, and no patient had isolated level IV metastasis. Additionally, there was no level IV metastasis in well-differentiated tumors. Tumor size, depth of invasion, differentiation, and perineural invasion were significantly associated with level IV neck metastasis. We found a critical tumor size of 2.5 cm and depth of invasion of 8 mm for level IV neck metastasis. CONCLUSION: Based on our findings, we recommend that level IV dissection should be considered for poorly differentiated tumors, tumors greater than 2.5 cm in size, and those deeper than 8 mm. This study highlights the importance of depth of invasion as a prognostic factor for predicting level IV metastasis and suggests that our findings can be used to prevent unnecessary level IV dissections that may lead to complications in tongue cancer surgery.

Tongue prosthesis after total glossectomy: a case report.

Squamous cell carcinoma (SCC) is the type of cancer that most frequently affects the oral cavity, mainly in men older than 50 years of age. Treatment for oral SCC often involves surgical excision of the affected margins, resulting in mutilation that affects the patient's quality of life. The objective of this case report is to describe the prosthetic treatment of a 56-year-old man who underwent total glossectomy, resulting in speech and swallowing difficulties. The proposed treatment was a tongue prosthesis retained by orthodontic clasps on the mandibular first molars. After maxillary and mandibular complete-arch impressions were performed and casts were prepared for prosthetic planning, an acrylic resin plate and 3 tongue prototypes were fabricated. Esthetic and functional tests were carried out, and 2 tongue models (1 for speech and 1 for eating) were selected for acrylization, finishing, and polishing. After placement of the prostheses, the patient was referred for follow-up with a speech therapist to improve his adaptation with the prostheses. The patient was satisfied with the prostheses and able to perform the functions of chewing, swallowing, and speech production, which helped in his social reintegration and improved his quality of life.

Surgical Management of Pediatric Obstructive Sleep Apnea Beyond Tonsillectomy & Adenoidectomy: Tongue Base and Larynx.

Pediatric patients with persistent obstructive sleep apnea (OSA) after adenotonsillectomy often have additional sites of upper airway obstruction such as the tongue base or larynx. Sleep endoscopy and cross-sectional, dynamic imaging can be used to direct surgical management of persistent OSA. The tongue base is one of the most common sites of obstruction in children with persistent OSA, especially for patients with Trisomy 21. Lingual tonsillectomy, tongue suspension, and/or posterior midline glossectomy may be used to address lingual tonsil hypertrophy and tongue base obstruction. Epiglottopexy and/or supraglottoplasty may be used to address laryngomalacia and epiglottic prolapse resulting in OSA.

Evaluation of keyhole-pattern reduction glossoplasty for macroglossia in beckwith-wiedemann syndrome: A multidimensional analysis of postoperative course and outcomes.

The aim of this study was to evaluate the postoperative course and long-term functional and aesthetic outcomes in patients with Beckwith-Wiedemann syndrome (BWS) following surgical reduction of macroglossia, using multiple questionnaires. Patients with BWS who underwent keyhole reduction for macroglossia were included in this study. The postoperative course for each patient was recorded, and multiple questionnaires were administered to evaluate aesthetic concerns, oral incompetence or feeding difficulties, sleep-disordered breathing symptoms, and speech. Nine patients underwent ten reduction glossoplasty surgeries. The mean age at surgery was 22 months. The postoperative course for each case was uneventful, except for one patient who had wound dehiscence. The questionnaires revealed significant improvements in tongue appearance, feeding, drooling, facial appearance, and psychosocial outcomes. There was also a significant reduction in sleep-disordered breathing symptoms after surgery. Keyhole reduction glossoplasty is a safe and effective procedure for the treatment of macroglossia in BWS patients, with excellent functional and aesthetic outcomes and a low complication rate.

Comparison of complications and functional outcomes following total or subtotal glossectomy with laryngeal preservation using a deep inferior epigastric artery perforator free flap versus a rectus abdominis musculocutaneous free flap.

OBJECTIVE: Wide defects resulting from subtotal or total glossectomy are commonly reconstructed using a bulk flap to maintain oral and speech functions. The flap, including muscle tissue, diminishes with time. This study aimed to compare the surgical outcomes of deep inferior epigastric artery perforator and rectus abdominis musculocutaneous free flap reconstructions after glossectomy with laryngeal preservation. METHODS: Medical records of 13 and 26 patients who underwent deep inferior epigastric artery perforator and rectus abdominis musculocutaneous free flap reconstructions, respectively, from 2014 to 2022 at our institution were reviewed. Patients who underwent middle pharynx resection except for the base of the tongue, mandibular bone resection, and sensory reinnervation were excluded. RESULTS: The rectus abdominis musculocutaneous groups showed a higher number of lymph node dissection and shorter operative time than the deep inferior epigastric artery perforator groups. No significant differences in postoperative complications or functional oral intake scale scores at 6 months were observed. Volumetric changes on computed tomography images at 6 and 12 months were significantly lower in the deep inferior epigastric artery perforator group. Cancer recurrence was significantly associated with reduced oral function. CONCLUSIONS: Oral function in patients with cancer is influenced by various other factors. However, the deep inferior epigastric artery perforator flap may be suitable for tongue reconstruction because of the minimal postoperative changes in flap volume, easy adjustment of flap thickness, elevation of multiple flaps, and minimal complications at the donor site.

Risk factors for late postoperative bleeding after partial glossectomy for tongue cancer.

BACKGROUND: Partial glossectomy is the most common procedure for early-stage tongue cancer. Although late postoperative bleeding occasionally occurs, the associated risk factors have not been adequately identified. AIMS/OBJECTIVES: We aimed to investigate the rate and risk factors for late postoperative bleeding after transoral partial glossectomy with or without neck dissection for tongue cancer at our institution. MATERIAL AND METHODS: We analysed 211 patients who had undergone transoral partial glossectomy between January 2016 and January 2023. The potential risk factors associated with late postoperative bleeding were investigated using univariate and multivariate logistic regression analyses. RESULTS: Of the 211 patients, 40 (19%) showed late postoperative bleeding, with 19 (9%) classified as grade IIIa (Clavien-Dindo classification). Regarding all grades, late postoperative bleeding was significantly higher in patients aged <70 years and in those with polyglycolic acid (PGA) sheets (p = .046 and .030, respectively). For grade ≥ IIIa, late postoperative bleeding was significantly higher in patients with a history of anticoagulant/platelet administration, a mucosal defect covered with fibrin glue and a PGA sheet (p = .045 and .026, respectively). CONCLUSIONS AND SIGNIFICANCE: The findings of this study suggest that primary closure decreases the frequency of late postoperative bleeding.

A Pilot Study: Free Flap Atrophy in Tongue Reconstruction Using 3D Volumetric Analysis.

OBJECTIVE: To identify factors influencing volume change in non-osseous oral free flap reconstruction using postoperative cross-sectional imaging and 3-dimensional segmentation of the free flap's muscular and adipose tissue content. METHODS: Oral tongue free flap reconstruction cases (2014-2019) were reviewed with inclusion of patients with 3 postoperative, cross-sectional imaging studies with 1 within 6 months, 1 within 1 year, and 1 that spanned 2 years post-reconstruction. Exclusion criteria included recurrence, significant dental artifact, bony reconstruction, and flap failure. Demographics, risk factors, and surgical/clinical treatments were identified. Flap volumes were measured using Materialise MIMICS. RESULTS: Twenty-two patients met strict inclusion criteria. Four flaps were anterolateral thighs and 18 radial forearms. Median percent volume loss greater than 2 years post-reconstruction was 53.2% overall, 58.1% for radial forearms, and 45.4% for ALTs (21.4% for adipose tissue and 57.4% for muscular tissue). Univariate analysis revealed glossectomy amount was associated with percent volume loss (P = .0417). Each successive postoperative month, the flap decreased by 1.54% (P < .0001). Checking for the interaction effect, the percent of flap loss across time was different for glossectomy amount (P = .0093), obesity status (P = .0431), and base of tongue involvement (P = .0472). CONCLUSION: Glossectomy type, and thus flap size, is a positive predictor for flap atrophy. Obesity and base of tongue involvement are negative predictors for flap atrophy. The amount of tissue loss may differ from classical teachings with median atrophy 53.2% greater than 2 years post-reconstruction.

Clinical, functional, and patient-reported outcomes of radial forearm versus anterolateral thigh free tissue transfer for reconstruction of glossectomy defects.

BACKGROUND: There is a lack of literature of health-related quality of life endpoints for radial forearm (RF) versus anterolateral thigh (ALT) free flap reconstruction for glossectomy defects. Our goal was to perform a comprehensive evaluation of clinical, functional, and quality of life outcomes after glossectomy reconstruction using a RF or ALT flap. METHODS: A retrospective review was performed on patients who underwent glossectomy and immediate reconstruction with RF or ALT flaps between 2016 and 2021. Outcomes of interest included readmission and reoperation rates, functional assessments, tracheostomy and gastrostomy tube status, and FACE-Q Head and Neck Cancer scores. RESULTS: Seventy-eight patients consisting of 54 RF and 24 ALT free flaps were included. ALT patients had a larger median flap size (72 vs. 48 cm2 , p = 0.021) and underwent mandibulotomy (50% vs. 7.4%, p < 0.0001) and base of tongue resection (58.3% vs. 24.1%, p = 0.005) at higher rates. No significant differences were found with respect to other outcomes. CONCLUSION: The RF and ALT flaps are suitable for glossectomy reconstruction, with minimal differences seen in postoperative outcomes. Our study suggests that ALT can be used in patients with base of tongue and larger defect sizes, while providing similar functional and clinical outcomes to RF reconstruction.

Favourable swallowing outcomes after subtotal glossectomy with laryngeal suspension.

Subtotal or total glossectomy for advanced tongue cancer has an adverse impact on swallowing. The purpose of this retrospective study was to analyse postoperative swallowing outcomes and to determine the ideal reconstruction method in these patients. The clinical and swallowing data of patients with tongue cancer who underwent subtotal glossectomy at the study institution between 2005 and 2019 were reviewed retrospectively. Data were available for 101 patients. The most common reconstruction method was a free rectus abdominis musculocutaneous flap (69 cases). The postoperative feeding tube dependency rate was 11.1% at discharge and 9.4% at 1 year. During the study period, laryngeal suspension and/or a cricopharyngeal myotomy was performed in 39 patients (38.6%), with 25 of these operations performed after 2017. Patients treated in 2017-2019 were significantly more able to take thin liquid (P < 0.001) and lost less weight (P = 0.015) compared to those treated in 2005-2016. Multivariate analysis of 61 patients who did not undergo laryngeal suspension and/or cricopharyngeal myotomy showed significant feeding tube dependency in those aged 65 years and older (P = 0.004). Thin liquid intake was significantly improved after subtotal glossectomy with laryngeal suspension, which led to better postoperative swallowing and improved quality of life.

Quality of life and swallowing outcomes following major glossectomy: A prospective single-center experience.

BACKGROUND: There exists a lacuna in the structured reporting of swallowing dysfunction and quality of life (QoL) outcome following major glossectomy. METHODS: Prospective cohort study to assess the swallowing dysfunction and QoL following STG (subtotal glossectomy) or NTG (near total glossectomy) over a 6-month period using FEES and PAS scale, MDADI, and FACT-HN. RESULTS: Twenty-four patients were available for analysis. The pre- and post-adjuvant evaluation revealed a statistically significant improvement in the composite MDADI and FACT-HN scores. Subscale analysis of FACT-HN scores revealed maximum deficit in the head and neck cancer-specific score domain followed by functional domain and social well-being domain, with serial improvement noted in the post-adjuvant setting. CONCLUSION: This study showed serial improvement in terms of swallowing dysfunction although social and functional well-being domains related to QoL continued to reveal major deficits. Better outcomes were seen with preservation of bilateral base of tongue and mandible.

Volumetric changes in post hemiglossectomy reconstruction with anterolateral thigh free flap versus radial forearm free flap.

The volume of the reconstructed tongue is considered a critical factor for tongue function. Studies investigating the difference in volume loss between the anterolateral thigh free flap (ALTF) and radial forearm free flap (RFFF) used in reconstruction of the tongue after hemiglossectomy are lacking. The aim of this study was to determine whether there is a significant difference in shrinkage between these two flaps. This was a retrospective study of all patients treated for tongue cancer by hemiglossectomy who underwent either ALTF or RFFF reconstruction at the University of Florida College of Medicine between January 2018 and April 2022. Computed tomography scans were used to measure the volumetric changes in the ALTF and RFFF at two time points over a 6-month period. Of the 85 patients assessed, 10 fulfilled the inclusion criteria: five were reconstructed with an ALTF and five with a RFFF. All underwent adjuvant radiotherapy. The mean ALTF percentage shrinkage was 39.6% ± 3.9%, while for the RFFF it was 51.1% ± 6.2% (P = 0.008). Therefore, it is recommended that the difference in volume loss between the two flaps is taken into consideration. It is suggested that in hemiglossectomy cases, the ALTF is made 1.4 times larger than the defect, while the RFFF is made 1.5 times larger.

Free Vertical Latissimus Dorsi Flap for Tongue Reconstruction After Total Glossectomy.

BACKGROUND/AIM: The tongue is an important anatomical structure, playing an significant role in natural speech, swallowing, and sense of taste. Immediate reconstruction using autologous tissue must be performed following glossectomy for tongue cancer to improve patient quality of life. This study aimed to demonstrate the usefulness of a surgical technique using the free vertical latissimus dorsi flap (FvLDF) for tongue reconstructions using autologous tissue. PATIENTS AND METHODS: Among patients who underwent total glossectomy for tongue cancer from November 2014 to February 2023, we selected 10 patients who underwent immediate tongue reconstruction with a radial free forearm flap (RFFF) or free anterolateral thigh flap and four patients who underwent FvLDF. The patients were compared regarding postoperative function (width of oropharyngeal space in computed tomography, language-speech evaluation), aesthetic results, and features. RESULTS: All four patients who underwent FvLDF showed successful flap survival, with no severe complications. Because vertical incision was made during flap harvest with primary closure possible with the mid-axillary line, donor morbidity was significantly lower in patients who underwent reconstruction with FvLDF than in those who underwent reconstruction with RFFF, and good aesthetic results were obtained. In comparing the oropharyngeal space of patients on neck CT preoperatively and postoperatively, the width increase rate of patients who underwent reconstruction with FvLDF was significantly smaller. FvLDF patients demonstrated good speech and swallowing functions. CONCLUSION: Considering the advantages of reconstruction with FvLDF in terms of features and aesthetic results, this surgical technique may be a reliable alternative technique for tongue defects after glossectomy.

Depth of resection predicts loss of tongue tip sensation after partial glossectomy in oral tongue cancer: A pilot study.

OBJECTIVE(S): To characterize the change in sensory function following partial glossectomy for oral tongue cancer (OTC) and to identify predictors of loss of tongue-tip sensation (LoTTS). MATERIALS AND METHODS: Patients with at least three months follow-up after partial glossectomy for primary OTC were included. All patients underwent a qualitative tongue sensation assessment and an objective tongue sensory exam of the native tongue tip. Additional details regarding the oncologic resection, surgical reconstruction, and pathological stage were collected. Multiple linear and logistic regressions were used for statistical analysis. RESULTS: Sixty-four patients were enrolled, including 34 (53%) men with a median age of 65 at enrollment. Ten (15%) patients reported LoTTS. Increased depth of resection (DOR) was an independent predictor of LoTTS on multivariate analysis, with an increased risk at a threshold of 1.3 cm. LoTTS was also associated with worse subjective quality of life and perceptive speech performance in our qualitative tongue assessment. CONCLUSIONS: In this pilot study, we found that DOR is a critical prognostic factor in predicting post treatment function. Patients with an increased DOR, particularly above 1.3 cm, are at greatest risk of LoTTS and associated morbidity. These findings may be used to predict post-operative sensory deficits, manage patients' expectations, and optimize the reconstructive approach. Future studies are needed to validate and replicate our results.