Repair of salivary fistula after reconstruction of pharyngoesophagus

We describe three surgical methods used to repair salivary fistulas in different situations that are seen after reconstruction of the pharyngoesophagus in patients with hypopharyngeal cancer. The principle of these methods is the same; a cervical skin flap next to the fistula is used as the internal lining and an anterior chest skin flap is rotated as an external lining to cover it. For the primary closure of heavily irradiated fistulas, this combination may not always be effective, and we emphasize that a combined use of a pedicled pectoralis major muscle flap with these two kinds of pedicled skin flap is extremely reliable.     

Mandibular reconstruction using free bone flap after preoperative chemoradiation

When treating head and neck cancer of an advanced stage, additional therapy modalities are often combined with surgery. This sets new challenges for the reconstructive surgery, especially after segmental mandibulectomy. There is continuous discussion considering the optimal timing of the surgery with relation to other treatment methods such as radiation therapy and chemotherapy. In this work, we have analyzed a series of 10 patients treated with segmental mandibulectomy and preoperative irradiation or chemoradiation in our institute between 1999 and 2006. Surgery was scheduled within 5 weeks from the radiation therapy. 9 out of 10 reconstruction flaps were vital at the last follow-up. In general the outcome of these patients was consistent with the results published earlier by other institutes using postoperative irradiation or chemoradiation. We conclude that preoperative irradiation does not have negative impact on microvascular reconstruction with free bone flap and this procedure offers an equal option for the treatment of these patients.     

Functional outcomes after free flap reconstruction of the upper aerodigestive tract

PURPOSE OF REVIEW: When the complex structures of the upper aerodigestive tract are disrupted after resection of head and neck tumors, an appropriate reconstructive option should be chosen in an attempt to regain maximum function. Reconstructions using microvascular free tissue transfer offer unparalleled flexibility, both in tissue composition and in placement. This article will examine functional outcomes after free flap reconstruction of the upper aerodigestive tract. RECENT FINDINGS: With the maturation of free tissue transfer techniques, functional outcomes are being analyzed with increasing frequency. Recent reports show promising results for free flap reconstruction of oral cavity, oropharyngeal, and hypopharyngeal soft tissue defects, as well as for bony mandibular and maxillary defects. SUMMARY: For both soft tissue and bony defects of the upper aerodigestive tract, microvascular free flaps provide good functional outcomes. In the future, randomized studies are needed to compare the functional outcomes of microvascular free flaps with those of other reconstructive options.     

喉全切除前臂桡侧游离皮瓣发音重建

喉全切除后发音重建一直是临床研究的重要课题之一，目前国内外已有众多方法，术后疗效亦各不相同。前臂皮瓣由杨果凡等于1979年8月创用，目前已广泛用于头颈部软组织缺损的修复，成为头颈缺损修复重建应用最多的游离组织瓣。我们将该皮瓣用于喉全切除后发音重建，自2001年10月-2003年1月共完成5例手术，本文对此手术效果、手术操作及一些有关问题进行回顾性分析。     

Oncological outcome after free jejunal flap reconstruction for carcinoma of the hypopharynx

It has been a common practice among the oncologist to reduce the dosage of adjuvant radiotherapy for patients after free jejunal flap reconstruction. The current aims to study potential risk of radiation to the visceral flap and the subsequent oncological outcome. Between 1996 and 2010, consecutive patients with carcinoma of the hypopharynx requiring laryngectomy, circumferential pharyngectomy and post-operative irradiation were recruited. Ninety-six patients were recruited. TNM tumor staging at presentation was: stage II (40.6%), stage III (34.4%) and stage IV (25.0%). Median follow-up period after surgery was 68?months. After tumor ablation, reconstruction was performed using free jejunal flap (60.4%), pectoralis major myocutaneous (PM) flap (31.3%) and free anterolateral thigh (ALT) flap (8.3%). All patients underwent adjuvant radiotherapy within 6.4?weeks after surgery. The mean total dose of radiation given to those receiving cutaneous and jejunal flap reconstruction was 62.2?Gy and 54.8?Gy, respectively. There was no secondary ischaemia or necrosis of the flaps after radiotherapy. The 5-year actuarial loco-regional tumor control for the cutaneous flap and jejunal flap group was: stage II (61 vs. 69%, p?=?0.9), stage III (36 vs. 46%, p?=?0.2) and stage IV (32 vs. 14%, p?=?0.04), respectively. Reduction of radiation dosage in free jejunal group adversely affects the oncological control in stage IV hypopharyngeal carcinoma. In such circumstances, tubed cutaneous flaps are the preferred reconstructive option, so that full-dose radiotherapy can be given.     

Fistula analysis after radial forearm free flap reconstruction of hypopharyngeal defects

Objective/Hypothesis: To evaluate risk factors and management options for fistula formation after hypopharyngeal reconstruction using the radial forearm free flap reconstruction. Study Design: Retrospective cohort study. Methods: Patients undergoing radial forearm free flap for hypopharyngeal reconstruction were retrospectively reviewed. A total of 104 patients underwent this procedure between 2001 and 2007. Fistulas were classified as mild or severe depending on the response to conservative management. Demographics, operative details, pathology, and postoperative course were recorded as the prognostic variables. Univariate analysis and a logistic regression model were used to identify associated factors. Results: Pharyngocutaneous fistula developed in 30 (28.8%) patients. Recurrence, cancer stage, cancer location, type of ablative surgery, and the addition of other oncologic procedures were identified as significant predictors of fistula formation. Fistula significantly increases hospital stay and recipient site complications such as flap survival, infection, and bleeding. Functional results such as diet, deformity, and socialization were also negatively affected by fistula development. One third of the cases responded to conservative management, and 20 cases required a surgical procedure to definitively close the fistulous track. Conclusions: Fistula formation remains a significant cause of morbidity associated with hypopharyngealreconstruction. Postoperative course and successful preventive strategies are discussed.     

Midface reconstruction with the fibula free flap

OBJECTIVE: To evaluate the use, indications, and outcomes of the fibula osteocutaneous free flap when reconstructing the midface. DESIGN: Retrospective review of a case series. SETTING: Tertiary referral center. PATIENTS: We evaluated all patients requiring midface reconstruction after tumor resection between January 1, 1994, and January 1, 2000. Twenty-seven individuals who lacked sufficient retentive surfaces and/or teeth to support a conventional prosthesis were offered vascularized bony reconstruction. INTERVENTIONS: All patients underwent fibular osteocutaneous free flap reconstruction of the midface: 16 primarily, 11 secondarily. MAIN OUTCOME MEASURES: Success of free tissue transfer, perioperative complications, oral diet, speech, type of dental reconstruction, and cosmesis. RESULTS: Twenty-six of 27 flaps survived. Four patients had wound complications managed successfully with local wound care. Fourteen patients achieved a regular diet and 13 patients maintain a soft diet. Eighteen patients had osseointegrated implants placed, and 14 patients used an implant-borne prosthesis. Cosmetic results were judged to be excellent in 14 patients; good in 8; fair in 4; and poor in 1. CONCLUSIONS: Use of the fibula osteocutaneous free flap to reconstruct the midface is highly reliable and our flap of choice for lower maxillary defects requiring bony reconstruction. However, when orbitozygomatic support is the primary objective, the utility of this flap is limited. Because of the complexity of this procedure, the choice of midface reconstruction technique should be individualized for each patient.     

Radial forearm free flap pharyngoesophageal reconstruction

OBJECTIVES: This study evaluates the outcome of pharyngoesophageal reconstruction using radial forearm free flaps with regard to primary wound healing, speech, and swallowing in patients requiring laryngopharyngectomy. STUDY DESIGN: Retrospective review in the setting of a tertiary, referral, and academic center. PATIENTS AND METHODS: Twenty patients underwent reconstruction of the pharyngoesophageal segment using fasciocutaneous radial forearm free flaps. RESULTS: All free flap transfers were successful. An oral diet was resumed in 85% of the patients after surgery. Postoperative pharyngocutaneous fistulas occurred in 4 patients (20%) with 3 resolving spontaneously. Distal strictures also occurred in 20% of the patients. Five patients who underwent tracheoesophageal puncture achieved useful speech. CONCLUSIONS: Advantages of radial forearm free flaps for microvascular pharyngoesophageal function include high flap reliability, limited donor site morbidity, larger vascular pedicle caliber, and the ability to achieve good quality tracheoesophageal speech. The swallowing outcome is similar to that achieved after jejunal flap pharyngoesophageal reconstruction. The main disadvantage of this technique relates to a moderately high incidence of pharyngocutaneous fistulas, which contributes to delayed oral intake in affected patients.     

Microsurgical techniques in free flap reconstruction

Free flap reconstruction is discussed with emphasis on microsurgical technique utilized in union of blood vessels 1 mm in external diameter. Proper microsurgical instrumentation, magnification and small vessel suture technique are all of importance in achieving a successful microvascu-lar anastomosis. Technical maneuvers employed in identifying and avoiding small vessel thrombosis are presented. Surgical techniques, as presented here, have allowed us to successfully use free flaps to reconstruct large oral cavity defects following ablative cancer operations.     

Hypopharyngeal reconstruction with gastro-omental free flap

Three types of reconstruction are possible following total laryngopharyngectomy (TLP) for advanced hypopharyngeal cancer: locoregional tubularized island flaps, gastric pull-up and free flaps. Gastro-omental free flap (GOFF) is rarely used in this setting. However, because of its composite nature, this flap has the advantage of being able to restore digestive continuity and reconstruct part of the skin of the neck when it needs to be sacrificed because of tumour invasion or poor trophicity. The GOFF is a reliable and robust flap particularly indicated in hostile environments: repeated neck surgery, atrophic and devascularized skin after radiotherapy, sepsis in the context of fistula and/or pharyngostomy. It requires the collaboration of two or even three surgical teams. In this article, we describe the flap harvesting technique and the complications and functional outcome.     

Functional outcomes after primary mandibular resection and reconstruction with the fibular free flap

OBJECTIVE: This study examined prospectively the functional outcomes of a cohort of patients who have undergone mandibulectomy and primary fibular free flap reconstruction, with particular emphasis on longitudinal comparison of the preoperative function with that in the postoperative and post-radiation therapy time periods. METHODS: Speech and swallowing data were gathered at three evaluation times (preoperatively, pre-radiation therapy, and post-radiation therapy) for patients treated for oral cavity cancer with mandibular resection and reconstruction with a fibular free flap. Single words and sentences were recorded and analyzed for speech intelligibility. Modified barium swallows of liquid, pudding, and cookie consistencies were analyzed and graded for problems in the oral preparatory and oral phase according to the University of Chicago Center for Speech and Swallowing Disorders Oropharyngeal Mobility Data Form. RESULTS: There was no significant difference across any of the evaluation times for single-word or sentence intelligibility. The swallowing data showed no instances of post-treatment aspiration or laryngeal penetration. There were also no significant differences in any of the swallowing parameters across treatment times. CONCLUSIONS: Osteocutaneous fibular free flaps are an excellent reconstructive option for mandibular and floor of the mouth defects.     

Functional results of speech and swallowing after oral microvascular free flap reconstruction

Purpose  

To study speech and swallowing in patients who underwent microvascular free flap reconstruction after major surgery of the oral cavity.     

Functional outcome after partial glossectomy with reconstruction using radial forearm free flap

Objective

The purpose of this study was to investigate the relationship between the radial forearm free flap (RFFF) volume changes and speech and swallowing outcomes.

Methods

The study included 18 subjects with squamous cell carcinoma of the oral tongue.

Results

Average percentage changes in flap volume between 3 and 12 months was 19.2%. Postoperative free flap volume changes were significantly and negatively correlated with the word and sentence intelligibility (Y = −0.338X + 43.641, r² = 0.383, p = 0.006 and Y = −0.246X + 34.322, r² = 0.321, p = 0.014, respectively). A significant positive correlation was also found between word and sentence intelligibility and floor of mouth resected, postoperative irradiation. Postoperative flap volume changes between 3 and 12 months were correlated with reduced posterior bolus movement by tongue (p = 0.002), reduced tongue base to posterior pharyngeal wall contact (p = 0.002), reduced laryngeal elevation (p = 0.005), increased aspiration (p = 0.005), delayed oral (p = 0.010) and pharyngeal transit time (p = 0.011). Floor of mouth resected, tongue base resected, and postoperative irradiation also influenced the swallowing outcomes.

Conclusions

This study shows that postoperative flap volume changes are significantly related to speech and swallowing outcomes in patients undergoing partial glossectomy reconstructed with RFFF.