Island pedicle flap

Systematic review of minimally-invasive reconstructive options for oral cavity defects

The oral cavity is a primary site for malignant neoplasms of the head and neck region. Surgery, with or without adjuvant therapy, offers the highest probability of cure by focusing on radical tumour removal and organ function restoration. Reconstructive options are represented by local and free flaps, while small defects can be managed without reconstruction. For medium-sized defects without bone involvement, local flaps can be a good alternative to free flaps in selected patients. The purposes of this article are to analyse the main minimally-invasive reconstructive techniques in oral cancer surgery through a systematic review of the literature and develop a reconstructive algorithm based on the site and size of the defect. We defined minimally-invasive reconstruction as any reconstructive option not involving flap dissection from the neck or other distant areas from the oral cavity. Options considered include: local myo-mucosal or mucosal flaps (based on the facial or buccal arteries, and palatal flap), Bichat’s fat pad flap, and nasolabial flap. Use of biological or synthetic materials is also described. In selected patients with small to moderate-sized defects, the possibility of reconstruction with local flaps can be a viable option.

Experience of Island Nasolabial Flap for Patients with Oral Cavity Cancer

Aim

To find out the utility of the island nasolabial flap in patients with oral cavity malignancy.

Materials and methods

This was an observational study conducted at a super-specialty hospital in Maharashtra from October 2019 to December 2021. Patients with oral malignancy planned for island nasolabial flaps were only considered.

Results

A total of 20 patients were operated on, out of which 16 were males and 4 were females. All the patients were followed up for a minimum period of 6 months. The hospital's online reporting system is used for the data collection including the post-operative assessment. Out of the 20 patients, 10 patients were suffering from tongue carcinoma, 6 patients from buccal mucosal carcinoma, two from hard palate carcinoma and one patient each from the floor of the mouth and lip carcinoma. The mean age of the series was 52.3 years, the average duration of the surgery is 169.4 min and the average hospital stay in the series was 4.35 days. The Ryle's tube was removed on an average of 4.35 days. No flap-related complications were noted during the series, and healing of the donor site was uneventful. The functional outcomes after the reconstruction are acceptable in all the cases except in the lip reconstruction patient where there was post-operative drooling.

Conclusion

The island nasolabial flap is relatively easy to harvest and less time-consuming. The other advantages include the post-operative surgical scar falls along the nasolabial fold, long pedicle length with preservation of the facial pedicle for future microvascular use, early transfer to the oral feed from the nasogastric feed, and early de-cannulation. In our small study, we observed that the island nasolabial flap is a very useful flap for the small to moderate-sized defects of the oral cavity. We feel, one of the disadvantages of this flap is that it is not an ideal flap for lip reconstruction.

A Comprehensive Review on the Supraclavicular Flap for Head and Neck Reconstruction

ABSTRACT

The supraclavicular artery flap (SCF) is a highly vascularized fasciocutaneous flap overlying the shoulder. The flap was first described in 1979 by Lamberty but did not gain popularity until much later due to lack of a reliable technique. The main advantages of using the SCF include avoiding microsurgical techniques, requiring only a single-stage operation, shorter operative time compared with alternative options, and a wider patient population including those with comorbidities who may be excluded from more extensive operations including free flaps surgeries. The SCF has been successfully performed on individuals with advanced age, poor nutrition, cachexia, obesity, diabetes, tobacco use, severe chronic obstructive pulmonary disease, hypertension, coronary artery disease, peripheral vascular disease, supraventricular tachycardia, atrial fibrillation, heart failure, asthma, and steroid use. The largest disadvantages of the SCF include the possibility of distal tip necrosis, size limitation without pre-expansion, and a moderately visible donor site scar. The following review and meta-analysis of the SCF details its use historically as both an island and a pedicle flap, and its application in head and neck reconstruction.

Island Flap for Upper-Lip Reconstruction: Analysis of Key Aspects and a Case Series

Upper-lip reconstruction after Mohs micrographic surgery is challenging for dermatologic surgeons. We describe a series of 15 patients (7 men and 8 women; mean age, 65.6 years) with skin cancer on the upper lip treated with Mohs surgery: 10 were basal cell carcinomas, 2 were melanomas, and 3 were squamous cell carcinomas. The resulting defects measured between 3 and 7.6cm. We used island flaps to reconstruct the defects in all cases, hiding the incisions in the nasolabial fold, at the line where the skin meets the vermillion border of the lip, and in the relaxed skin tension lines. We explain key aspects of the surgeries and design of the reconstructions, with emphasis on the importance of occasionally sacrificing small areas of healthy skin. Cosmetic and functional outcomes were satisfactory in all patients, and there were no postsurgical complications.

The supraclavicular artery island flap (SCAIF) in head and neck reconstruction: an Italian multi-institutional experience

The supraclavicular artery island flap (SCAIF) is a thin and pliable pedicled flap that is easy and quick to harvest. Thanks to its particular features and high reliability, it is best indicated for the elderly or most fragile patients. SCAIF is very versatile, as it can be used for reconstruction of oral cavity, oropharynx, hypopharynx, facial and cervical skin and tracheostomal defects. We began using this flap in four Italian tertiary referral centres, with several indications, both as first treatment and as salvage surgery. The aim of the study was to demonstrate the easy reproducibility of the flap among four different centres. A series of 28 patients underwent head and neck reconstructions with SCAIF with no recorded complications during flap harvesting. After the very first cases, harvesting time was approximately 45 minutes; 24 patients had successful flap integration at the recipient site, while the remaining 4 suffered from partial flap necrosis, two of whom needed revision surgery. Other minor complications were reported at the recipient site, always at the most distal and most delicate portion of the flap. Donor site was always closed primarily, with only three cases of partial suture dehiscence. We only selected the most fragile patients for SCAIF reconstruction, such as the elderly or those with one or more comorbidities; for this reason, we reported some serious systemic complications and one intraoperative death. SCAIF is an easy reproducible flap, with multiple possible indications. Its use as an alternative to free flaps in the head and neck region is nowadays under discussion. Its use should be encouraged among head and neck surgeons thanks to its various advantages.

The V-to-Y Advancement Flap for Distal Nasal Reconstruction: Our Experience With 39 Patients

BACKGROUND AND OBJECTIVE

The V-to-Y advancement flap, also known as the island pedicle flap, is a single-stage repair option that can be used for defects on the distal nose. We report our experience using this flap for nasal defects following Mohs micrographic surgery, as well as describe optimal patient selection and flap design.

MATERIALS AND METHODS

A retrospective review was conducted of all patient charts and operative photographs of nasal V-to-Y advancement flaps performed over 6 years at the Universtiy of Texas Southwestern Medical Center. Charts were reviewed for age, sex, tumour type and location, defect size, anticoagulation, immunosuppression, postoperative complications, revisions, and outcomes.

RESULTS

Thirty-nine patients with defects ranging from 0.7 to 1.7 cm in size (median of 1 cm) were included. Most defects involved the inferior, paramedian nose, and after accounting for 7 postrepair interventions on 6 (15%) patients, 38 (97%) patients were noted to have good to excellent cosmetic outcomes while 1 patient experienced a persistent trapdoor effect.

CONCLUSION

The V-to-Y advancement flap is an excellent single-stage option that can reliably provide good to excellent cosmetic results when used to repair small- to medium-size sized defects on the distal half of the nose.

Tissue transfer techniques in reconstructive urology

Tissue transfer techniques are an essential part of the reconstructive urologist's armamentarium. Flaps and graft techniques are widely used in genital and urethral reconstruction. A graft is tissue that is moved from a donor site to a recipient site without its native blood supply. The main types of grafts used in urology are full thickness grafts, split thickness skin grafts and buccal mucosa grafts. Flaps are transferred from the donor site to the recipient site on a pedicle containing its native blood supply. Flaps can be classified based on blood supply, elevation methods or the method of transfer. The most used flaps in urology include penile, preputial, and scrotal skin. We review the various techniques used in reconstructive urology and the outcomes of these techniques.

Single-stage interpolation flaps in facial reconstruction

BACKGROUND

Relatively deep and complex surgical defects, particularly when adjacent to or involving free margins, present significant reconstructive challenges. When the use of local flaps is precluded by native anatomic restrictions, interpolation flaps may be modified to address these difficult wounds in a single operative session.

OBJECTIVE

To provide a framework to approach difficult soft tissue defects arising near or involving free margins and to demonstrate appropriate design and execution of single-stage interpolation flaps for reconstruction of these wounds.

METHODS

Examination of our utilization of these flaps based on an anatomic region and surgical approach.

RESULTS

A region-based demonstration of flap conceptualization, design, and execution is provided.

CONCLUSION

Tunneled, transposed, and deepithelialized variations of single-stage interpolation flaps provide versatile options for reconstruction of a variety of defects encroaching on or involving free margins. The inherently robust vascularity of these flaps supports importation of necessary tissue bulk while allowing aggressive contouring to restore an intricate native topography. Critical flap design allows access to distant tissue reservoirs and placement of favorable incision lines while preserving the inherent advantages of a single operative procedure.

Buccinator-based myomucosal flaps in intraoral reconstruction: A review and new classification

The buccinator-based myomucosal flaps are axial pattern flaps that are suitable in reconstruction of medium sized oral soft tissue defects; they are rich in blood supply, have appropriate thickness and considerable mucosal paddle, and they can secrete saliva. The present study describes surgical anatomy and blood supply of these flaps and demonstrates all possible modifications of these flaps (9 modifications). Many terms (> 10) have been used to refer to buccinator-based myomucosal flaps in the literatures. This report introduces a new classification system mainly based on the remaining attachments of buccinator muscle after flap elevation in pedicle variants and axial blood supply orientation in island variants.

[Eyebrow reconstruction]

The eyebrow is an essential anatomical area, from a social point of view, so its reconstruction, in case of skin defect, must be as meticulous as possible, with the less residual sequela. Capillary density extremely varies from one person to another and the different methods of restoration of this area should absolutely take this into consideration. We are going to review the various techniques of reconstruction, according to the sex and the surface to cover.

Use of a patient and observer scar assessment scale to evaluate the V-Y advancement flap for reconstruction of medial cheek defects

BACKGROUND

The V-Y advancement flap (VYF) is not commonly used to reconstruct defects located on the medial cheek. The quantitative assessment of VYF for this indication has not been reported. In evaluation of surgical scarring, the Patient and Observer Scar Assessment Scale (POSAS) has been validated for use in burn and breast surgery scars, but its usefulness in dermatologic surgery has not been determined.

OBJECTIVE

To present our experience with the use of the POSAS to assess the success of VYF reconstruction for surgical defects on the medial cheek.

METHODS AND MATERIALS

Fourteen patients with medium to large (>5 cm(2) ) medial cheek Mohs defects reconstructed using VYF were assessed. Final cosmetic and functional results were analyzed after a follow-up of 6 months to 2 years (mean follow-up 21 months) using the POSAS.

RESULTS

Observers using the POSAS gave a mean score for VYF reconstructions of 9.1 ± 2.3 (5 represents normal skin, 50 represents worst imaginable scar). Patients using the POSAS gave a mean score for VYF reconstructions of 10 ± 4 (6 representing normal skin, 60 representing worst imaginable scar).

CONCLUSION

VYF reconstruction of medium to large defects of the medial cheek is a useful option. The POSAS may be a helpful tool for evaluating reconstructive results in dermatologic surgery.

The tunneled forehead flap in medial canthal and eyelid reconstruction

BACKGROUND

The midline forehead flap is used in the reconstruction of large, deep defects of the medial canthal area and lower eyelid. Drawbacks are a cosmetically unfavorable skin bulge at the nasal bridge and obliteration of the natural medial canthal concavity, requiring correction in a second stage.

OBJECTIVE

We adopted a modification of the technique to avoid these drawbacks.

METHODS

We reviewed the medical records and photographs of patients who received the tunneled midline forehead flap procedure in the repair of medial canthal defects and in the anterior lamellar repair of eyelid defects. The forehead flap was elevated in the subdermal plane, and the pedicle was de-epithelialized and transferred through a subgaleal tunnel from the pivot point of the flap into the primary defect.

RESULTS

Nine patients had defects of the medial canthal area, medial part of the eyelids, or both after surgical removal of malignant tumors. Follow-up ranged from 5 months to 6.1 years (mean 2.1 years, median 11 months). In all cases, flap viability was maintained, globe protection was achieved, and the concave architecture of the medial canthus was preserved.

CONCLUSION

The tunneled midline forehead flap can be an advantageous single-stage technique in medial canthal and medial eyelid repair.

Modified single-sling myocutaneous island pedicle flap: series of 61 reconstructions

BACKGROUND

Bilevel undermining above and below the transverse nasalis muscle in the construction of a myocutaneous island pedicle flap produces a bilateral or unilateral muscular sling with exceptional vascular supply for reconstruction of defects on the distal nose. We present further modification of the single-sling myocutaneous island pedicle flap that expands its application to a wide variety of nasal defects and further defines its usefulness in nasal reconstruction.

METHODS

A series of 61 consecutive myocutaneous island pedicle flap reconstructions performed after Mohs surgery between March 2005 and July 2006 are presented. Flap modifications are presented, and advantages and limitations are discussed.

RESULTS

Flap modifications introduce additional reach and rotational mobility to the flap that permit extension of the flap to defects on the nasal tip and distal ala.

CONCLUSION

Modifications of the bilevel approach to the single-sling nasalis myocutaneous island pedicle flap further define its practicality in nasal reconstruction and expand its application to a variety of nasal defects.