Indications for pedicled pectoralis major flap in a free tissue transfer practice

Factors Influencing Postoperative Prognosis in Patients with Hypopharyngeal and Laryngeal Carcinoma

OBJECTIVES

Despite the increasingly modern surgical techniques in the oncology field, the factors that influence postoperative prognosis in patients with hypopharyngeal and laryngeal carcinoma (HLC) remain unclear. The study aimed to evaluate the factors influencing the prognosis of HLC patients with pathological diagnosis of squamous cell carcinoma, and the findings are intended to direct follow-up management strategies.

METHODS

A retrospective cohort study was performed. The study population included 407 postoperative patients with HLC from 2011 to 2015. Univariate and multivariate analyses were used to examine the prognostic factors identified.

RESULTS

Based on univariate analysis results, smoking and alcohol history, tumor differentiation, preoperative radiotherapy, primary tumor sites, flap reconstruction, lymph node invasion (LNI), and preoperative albumin levels (PAL) significantly affects the prognosis of HLC patients (P < .05). Meanwhile, multivariate analysis revealed that smoking pack-year (OR = 1.002, 95% CI = 1.001 ∼ 1.003), primary tumor sites (OR = 6.241, 95% CI = 1.715 ∼ 18.433), LNI (OR = 2.869, 95% CI = 1.095 ∼ 8.743), and PAL (OR = .020, 95% CI = .004 ∼ 0.104) were associated with complications. Tumor differentiation (OR = 0.650, 95% CI = .383 ∼ 0.855), primary tumor sites (OR = 12.392, 95% CI = 3.290 ∼ 26.679), LNI (OR = 16.323, 95% CI = 2.726 ∼ 47.729), preoperative radiotherapy (OR = 9.300, 95% CI = 3.182 ∼ 27.181), and PAL (OR = .321, 95% CI = .141 ∼ .732) were associated with overall survival rates.

CONCLUSION

Smoking and alcohol history, tumor differentiation, LNI, primary tumor sites, flap reconstruction, PAL, and preoperative radiotherapy are crucial factors that influence the postoperative prognosis of patients with HLC. In addition, a monogram of five factors was established to predict the survival rates of HLC patients.

Reconstruction in Salvage Surgery for Head and Neck Cancers

Introduction

Salvage surgery is the treatment option in recurrences and second primary tumors. This paper aimed to study the options and outcomes of reconstruction and the predictors of poor reconstructive outcomes in salvage surgery for head and neck cancers.

Study Design

This is a retrospective study of all patients who underwent reconstructive flap surgery as part of salvage surgery for head and neck cancers between the years 2004 and 2017.

Methods

The initial treatment may be single modality radiotherapy or surgery or multimodality with combinations of surgery, radiotherapy, and chemotherapy. Any pathology that required surgical salvage was included. Any procedures done purely as reconstructive surgery were excluded. Predictor variables included demographical, clinical, and treatment factors. The outcome parameter was the occurrence of any flap-related complication or not. The complications and morbidity related to the procedures are reported.

Results

Ninety-three patients underwent loco-regional flaps (LRF group), and 100 had free flaps (FF group). Pectoralis major flap was the commonest flap used in 68 patients (73.1%). Anterolateral thigh (ALT) flap was the commonest free flap and comprised 41% of the FF group. Any skin-related complication was seen in 35 patients (37.6%) and 41 (41%), respectively, in LRF and FF subsets. Any flap-related complication was seen in 16 patients (17.2%) and 29 patients (29%), respectively, in LRF and FF subsets. A summary measure "any one of the complications" was seen in 46 (49.5%) and 57 (57%), respectively, in LRF and FF subsets. Univariate and multivariate analysis for any flap-related complication identified no statistically significant predictor.

Conclusions

Soft tissue flaps were preferred in salvage reconstruction, though the defects had a bony component. In the microvascular free flap reconstruction era, pectoralis major flap has shifted its role from a "workhorse flap" to a "salvage flap." About half of the patients develop some complications. Flap-related complications are also common. In salvage surgery, it is important that an appropriate flap is selected, suitable for the setting, according to the indications, neck, and patient conditions.

Has the Pectoralis Major flap Really Become Obsolete?

Aim

To evaluate the current role of pectoralis major (PM) flap including the reasons for selecting it over free flaps.

Materials and methods

All patients who underwent PM flap at Apollo Hospitals Ahmedabad during the 3-year period from January 2020 to December 2022 were included. Patient demographics, tumour characteristics and complications were studied and reasons for selecting pectoralis major flap were analyzed. Data was entered in Microsoft excel spreadsheet and analyzed using online statistical calculators. The p value of < 0.05 was considered statistically significant.

Results

57 patients underwent reconstruction with PM flap while 154 patients underwent free flap reconstruction. 54 were male and 3 were female. Median age was 51 years. PM flap was used for intraoral lining in 25 patients, and it was bilobed in 26 patients with full thickness cheek defect. Most common complication was wound infection seen in 10 patients. 5 patients developed marginal necrosis of the flap and 5 had donor site wound dehiscence. No complete flap loss was seen. During the same period, 15/154 (9.74%) patients with free flaps developed complete flap necrosis and this was statistically significant (p = 0.012). Reasons for choosing PM flap were also analyzed. 14 patients had major comorbidities, 18 had extensive disease, in 5 patients it was used for salvage post free flap failure, while 10 previously treated patients had unavailability of suitable vessels for anastomosis. 12 patients underwent PM flap due to financial constraints.

Conclusion

Thus, PM flap is not obsolete and continues to maintain its place in head and neck reconstruction.

Pharyngeaoesophageal Reconstruction

Pharyngoesophageal reconstruction is one of the most challenging reconstructive dilemmas that demands extensive planning, meticulous surgical execution, and timely management of postoperative complications. The main goals of reconstruction are to protect critical blood vessels of the neck, to provide alimentary continuity, and to restore functions such as speech and swallowing. With the evolution of techniques, fasciocutaneous flaps have become the gold standard for most defects in this region. Major complications include anastomotic strictures and fistulae, but most patients can tolerate an oral diet and achieve fluent speech after rehabilitation with a tracheoesophageal puncture.

The Role of Fluorescent Angiography in Free Flap Reconstruction of the Head and Neck

OBJECTIVES

Highlight the use of fluorescent angiography in free flap reconstruction of the head and neck. Qualify how fluorescent angiography can be selectively added to management paradigms for head and neck free flap reconstruction.

METHODS

Retrospective chart review of 993 free flaps completed from the time the SPY Elite® system first became available at our institution between September 2013, until August 2020. Cases that used the SPY Elite® system were grouped into three broad categories: evaluation during initial flap harvest while still attached to the donor site, evaluation after anastomosis in the head and neck area, and evaluation post-operatively for questionable flap viability.

RESULTS

The SPY Elite® system was used in 64 cases. Forty flaps were evaluated intraoperatively during initial harvest and before anastomosis to the head and neck area. Of these, 20 had signs of poor perfusion of the entire skin paddle, 12 had large myogenous or skin flaps with questionable perfusion of the distal aspect, and 8 were evaluated for other reasons. In this group the use of SPY Elite® changed the management of the patient in 20 cases (50%). Ten flaps were evaluated intraoperatively after anastomosis to the head and neck to ascertain adequate flow to the entire flap. In this group management was changed in two (20%). Fourteen flaps were evaluated 3-5 days post operatively due to suspected failure of a component. In five cases (36%), the use of SPY Elite® determined management with either trimming or discarding the flap.

CONCLUSION

Assessment of flap perfusion via fluorescent angiography during initial flap harvest or when flap compromise is suspected post-operatively can guide decision making in free flap reconstruction of the head and neck and can be added to existing planning and management paradigms.

LEVEL OF EVIDENCE

4 Laryngoscope, 2022.

Partition of Pectoralis Major Musculocutaneous Flap as a Salvage Procedure for Simultaneous Coverage of the Exposed Carotid Artery and Reconstruction of Cervical Esophagus

BACKGROUND

In advanced pharyngoesophageal cancer patients, a critical event is represented by the failure of primary reconstruction with exposure of the carotid artery and partial or total defect of the cervical esophagus. For these high-risk patients, a partitioned pectoralis major musculocutaneous (PMMC) flap can prevent carotid blowout and provide skin for simultaneous esophageal reconstruction.

METHODS

Twenty-six patients needing pharyngoesophageal reconstruction together with coverage of carotid artery exposure were included in this retrospective case series. The patients were treated with a partitioned PMMC flap, based on the branching pattern of the pectoral branch of the thoracoacromial artery and the perforators of the pectoralis major muscle, to simultaneously reconstruct the defect and provide coverage for the carotid artery.

RESULTS

In 25 patients, the partitioned PMMC flap reconstructions resulted in complete wound healing without occurrence of carotid blowout syndrome or fistula formation. Minor complications as partial flap necrosis (7.7%) and strictures formation (7.7%) were recorded but did not compromise reconstruction. Twenty-two patients were able to adopt a semisolid diet, and 4 had recurrence of cancer.

CONCLUSIONS

The partitioned PMMC flap reconstruction represents a useful salvage solution to simultaneously restore the continuity of the alimentary tract and provide reliable coverage for the exposed carotid artery.

Functional Shoulder Outcome and Quality of Life Following Modified Muscle-Sparing Pectoralis Major Flap Surgery

BACKGROUND

The pedicled pectoralis major muscle flap (PMMF) is a well established flap for fistula prophylaxis after salvage laryngectomy. To reduce donor site morbidity, we established a modified muscle-sparing harvesting technique. We herein investigate postoperative shoulder function and health-related quality of life (HRQOL).

METHODS

A chart review of patients receiving the modified muscle-sparing pectoralis major muscle flap between 2013-2020 was performed. Nineteen patients (male = 18, female = 1) were potentially eligible and six male patients were ultimately enrolled. Postoperative shoulder function was assessed on both sides (flap side versus non-flap side) using the Constant Murley Score and the Bak criteria. Health-related quality of life was assessed with the European Organization for Research and Treatment of Cancer Quality of Life Questionnaire in cancer patients (EORTC QLQ-C30) and head and neck cancer patients (EORTC H&N35).

RESULTS

No Constant Murley Score subscale was statistically significant (p ≥ 0.180). Bak criteria was overall rated "Good". Solely upper extremity adduction force was significantly altered on the flap side (p = 0.039). Median EORTC QLQ-C30 score was 82.2 (IQR 11.1) on the functional scale and 10.3 (IQR 2.6) on the symptomatic scale. Median quality of life score was 75.0 (IQR 33.3) and median EORTC QLQ-H&N35 was 20.6 (IQR 9.8).

CONCLUSIONS

Postoperative shoulder function after modified muscle-sparing pectoralis major muscle flap surgery is comparable to function of the healthy side with a significant deficiency in adduction force not compromising daily life in this small study cohort.

Use of a sternocleidomastoid muscle flap to protect the carotid artery during laryngectomy

OBJECTIVES

This paper describes a simple method of securing tissue coverage of the great vessels at the initial surgery by rotating the divided sternal heads of the sternocleidomastoid muscle, a routine step during laryngectomy, and approximating them to the prevertebral fascia. The paper presents an illustrated case example where this technique in a salvage laryngectomy repair resulted in a protected vascular axis following a salivary leak.

RESULTS

Since utilising this technique, there has been a marked reduction in the requirement of subsequent flap procedures to protect vessels, and no episodes of threatened or actual carotid blowout.

The chimeric medial sural artery perforator flap as the ideal for partial tongue reconstruction: A case series and technical refinements

BACKGROUND

The medial sural artery perforator free flap (MSAP) has gained increasing popularity in head and neck reconstruction. Its slightly bulkier nature than the radial forearm flap, combined with negligible donor site morbidity, makes it an ideal candidate for the reconstruction of partial glossectomy defects. The ability to harvest the MSAP as a chimeric flap with a portion of the medial gastrocnemius muscle gives it greater flexibility in soft tissue reconstruction.

METHODS

A retrospective study of patients with partial glossectomy defects reconstructed using the MSAP by a single surgeon was performed. Perioperative data, donor and recipient site characteristics, complications, and outcomes were analyzed. A video is included to show technical points for the harvest of the flap.

RESULTS

A total of 10 patients were included. The average age was 59.1 years, with a mean of 43.5% of the tongue resected. All flaps survived, with no major complications. At follow-up, the patients had regained an average of 86.5% of original speech, with none requiring NG feeding. The average MSAP skin flap thickness was 7.8 mm, with 6 flaps being harvested as chimeric fasciocutaneous muscle flaps. Five flaps incorporated 2 perforators. Two case examples are presented.

CONCLUSION

The chimeric MSAP perforator allows for more robust partial glossectomy reconstruction with improved postoperative functional outcomes. It should be considered as the workhorse flap for partial tongue reconstruction.

Analysis of the efficacy of the pectoralis major myocutaneous flap in reconstructive head and neck surgery

INTRODUCTION

Although free flaps have been used predominantly in past decades for the soft tissue reconstruction of head and neck malignancies, Pectoralis major myocutaneous flap (PMMF) is still a reliable workhorse for patients with co-existing co-morbidities or low economic status where free flaps are not feasible.

PATIENTS AND METHODS

It was a retrospective study done on 36 patients of head and neck malignancies over the period of 5 years in which PMMF was used as a method of reconstruction in our hospital. Patients were followed up for a period of one year and outcome of PMMF was evaluated.

RESULTS

Out of 36 patients 31 were of oral cancer and 5 were of carcinoma hypopharynx. Incidence of total flap necrosis was nil and partial flap necrosis was 16.6%. Orocutaneous fistula was found in 16.6%, wound dehiscence was in 19.4% and infection was found in 13.5% of patients. Non-flap related complications were found in 13.8% of patients. 35 out of 36 patients (97.2%) eventually achieved satisfactory surgical outcome of PMMF reconstruction.

CONCLUSION

PMMF is a reliable method of reconstruction for head and neck malignancies especially in basic healthcare settings. With minimal expertise and groundwork, it is still a cost-effective workhorse flap for head and neck reconstruction.

Surgical Techniques for Head and Neck Reconstruction in the Vessel-Depleted Neck

The vessel-depleted neck presents a unique and challenging scenario for reconstructive surgery of the head and neck. Prior surgery and radiation often result in significant scarring and damage to the neck vasculature, making identification of suitable recipient vessels for microvascular free tissue transfer exceedingly difficult. Therefore, alternative reconstructive techniques and/or vessel options must be considered to obtain a successful reconstructive outcome for a patient. In this article, we discuss our experience and approach to the management of the vessel-depleted neck, emphasizing the importance of preoperative planning and having multiple backup options prior to surgery. The various preoperative imaging modalities and available options for recipient arteries and veins are presented in detail. Additionally, we discuss modifications of select free flaps to maximize their utility in successful reconstruction. Together with thoughtful preoperative planning, these techniques can help aid the reconstructive surgeon in addressing the complex decisions associated with the vessel-depleted neck.

A Head-to-Head Comparison of the Medial Sural Artery Perforator versus Radial Forearm Flap for Tongue Reconstruction

BACKGROUND

 For tongue reconstruction, the radial forearm flap (RFF) is commonly used. In the last decade, the medial sural artery perforator (MSAP) flap has been successfully used with reportedly superior donor-site outcomes. Our study is the first to compare the RFF and MSAP for reconstruction of partial glossectomy defects (<50% of tongue).

METHODS

 We conducted a retrospective review of 20 patients with partial glossectomy defects reconstructed at a tertiary referral center. Patient demographics, perioperative data, and postoperative complications were analyzed. Objective measures of speech, swallowing, and subjective patient satisfaction with their donor site were recorded.

RESULTS

 Ten RFF and MSAP were each used, with a mean partial glossectomy defect size of 40.5 and 43.5%, respectively. The MSAP was significantly thicker (7.8 vs. 4.3 mm, p < 0.05) with a longer harvest time (122.5 vs. 75.0 minutes, p < 0.05). There were no cases of free flap failure. Donor-site healing times were comparable, but the MSAP group experienced significantly less donor-site complications (n = 1 vs. n = 7, p < 0.05). Functional outcomes were comparable with 13 patients achieving normal speech and diet after 3 months (MSAP = 6 vs. RFF = 7, p = 1.00). All patients were satisfied with their donor-site outcome with the MSAP group having a marginally higher score.

CONCLUSION

 Both flaps are good options for partial glossectomy reconstruction. Though more challenging to harvest, the MSAP gives comparable functional results and has become our first reconstructive option given its superior donor-site outcomes.

Choice of Regional Flaps for Oral Cancer Defects: Relevance in Current Era

Introduction

Microvascular free flaps (MVFF) are the current standard of care for reconstruction of oral ablative defects; however, pedicled myocutaneous flaps (PMCF) are still used widely in India. The rationale behind the preference for selecting PMCF in the present era is not well understood. The associated complications and swallowing outcomes are variable.

Methods

We retrospectively analysed the records of patients who underwent reconstructive surgery for oral cancer ablative defects over a 3-year period.

Results

Ninety-seven pedicled myocutaneous flaps [89 pectoralis major myocutaneous (PMMC) flaps, eight lower trapezius island myocutaneous (TMC) flaps] and 113 MVFFs were performed. The reasons for selecting PMCF were financial constraints 38.7%, MVFF salvage 22.5%, medically compromised 10.7%, vessel-depleted neck 6.4%, old age with PS2 + 5.3%, early recurrence 5.3%, borderline resectable 4.3%, palliative resection 2.1%. Overall complication rate was 20.4%. Of patients, 50.7% and 34.7% were on regular and semisolid diet, respectively; 66.6% had acceptable swallowing-related social well-being.

Conclusion

PMCFs have an important role in developing countries with patients having financial constraints. The other potential reasons driven by patient factors were discussed. The swallowing outcomes are good, with majority of the people having socially acceptable swallowing function.

The Pectoralis Major Island Flap: Short Scar Modified Muscle-Sparing Harvesting Technique Improves Aesthetic Outcome in Reconstructive Head and Neck Surgery

BACKGROUND

Pectoralis major flap reconstruction is often associated with large unappealing scars in head-neck surgery. We recently established an alternative harvesting technique that improves aesthetic outcome.

OBJECTIVES

The objective of this study was to demonstrate a modified surgical technique that harvests the pectoralis major muscle as an island flap and focuses on minimizing incision lines and applying a muscle-sparing approach.

METHODS

A retrospective analysis covering the period 2008-2018 was conducted. Patients who underwent pectoralis major island flap reconstruction for fistula prophylaxis after salvage laryngectomy at the Medical University of Innsbruck were included. Flap harvesting was performed subcutaneously using two small incision lines, thereby sparing the clavicular and upper sternocostal aspects of the pectoralis muscle.

RESULTS

Twenty-three patients with squamous cell carcinoma of the larynx (n = 19) or pharynx (n = 4) underwent salvage laryngectomy and consecutive reconstruction using a pectoralis major island flap and our muscle-sparing technique. Mean overall operation time was 147 ± 48.6 min. The majority (70%) of patients had an uneventful course of recovery and showed satisfying aesthetic results and low donor site morbidity as compared to traditional harvesting techniques. Six (26%) patients had major complications that required surgical revision. Three (13%) cases were complicated with fistulas.

CONCLUSION

The pectoralis major island flap is shown to be reliable in otolaryngeal surgery. This surgical technique minimizes scarring and preserves thoracic wall architecture by taking a less invasive approach, thereby improving aesthetic outcome and reducing overall patient morbidity.

Comparison of the reconstruction of through-and-through cheek defects involving the labial commissure following tumor resection using four types of local and pedicle flaps

Background

The reconstruction of through-and-through cheek defects involving the labial commissure following cancer ablation is a surgical challenge.

Methods

This study evaluated 35 patients with buccal squamous cell carcinoma (SCC) involving the labial commissure who underwent Abbe–Estlander (A-EF), folded extended supraclavicular fasciocutaneous island (SFIF), folded pectoralis major muscle (PMMF), or folded extended vertical lower trapezius island myocutaneous (TIMF) flap reconstruction of through-and-through cheek defects involving the labial commissure following radical resection.

Results

The A-EF and SFIF groups differed significantly (P < 0.05) from the PMMF and TIMF groups in terms of tumor clinical stage and type of treatment. The inner PMMF (median 6.3 × 4.5) and TIMF (median 9.8 × 6.7) skin paddle dimensions were larger than those of the A-EF (median 1.8 × 2.2) and SFIF (median 5.5 × 4.3) groups (P < 0.05). The outer PMMF (median 6.3 × 6.6) and TIMF (median 9.8 × 13.2) dimensions were larger than those of the A-EF (median 1.8 × 3.8) and SFIF (median 5.5 × 4.6) groups (P < 0.05). The esthetic results, orbicularis oris function, and speech function were significantly (P < 0.05) better in the A-EF group than in the SFIF, PMMF, and TIMF groups. The patients were followed for 6–38 months (median 26.8, 25.0, 22.1, and 20.8 months in the A-EF, SFIF, PMMF, and TIMF groups, respectively). At the final follow-up, 4 (80.0%) patients in the A-EF, 7 (87.5%) in the SFIF, 5 (55.6%) in the PMMF, and 5 (38.4%) in the TIMF groups were alive with no disease; 1 (20.0%), 1 (22.2%), 2 (22.2%), and 4 (30.8%) patients, respectively, were alive with disease; and 2 (22.2%) patients in the PMMF and 4 (30.8%) in the TIMF group had died of local recurrence or distant metastases at between 9 and 38 months. There was a significant survival difference in the A-EF and SFIF groups compared with the PMMF and TIMF groups (P < 0.05).

Conclusions

The A-EF is suitable for reconstructing defects of clinical stage II disease; the SFIF for clinical stage II or III disease; the PMMF for clinical stage III or IV; and the TIMF for clinical stage rCS III or rCS IV disease.

PMMC Flap Revisited and its Clinical Outcome in 150 Patients

Introduction

Pectoralis myocutaneous flap remains the workhorse for the reconstruction of large defects in the head and neck region despite free flaps gaining popularity; because of its drawbacks such as long operating hours, high cost and special skill techniques, it is not used in most of the institutions. Even in our institution, free tissue transfers are carried out on a regular basis, but there is a definite scope and role for PMMC flap in reconstruction. We present our experience with pectoralis major myocutaneous flap in terms of postoperative complications, donor site morbidity, flap survival and long-term healing of the flap.

Materials and methods

In this study, 150 patients who underwent pectoralis myocutaneous flap reconstruction from 2008 to 2016 were analysed for postoperative complications like donor site morbidity, flap survival and long-term healing of the flap.

Results

On analysis of our data, it was found that the most common complication was wound dehiscence, which was seen in 25 patients(16%), followed by orocutaneous fistula in 15 (10%), wound infection and partial skin margin necrosis, which was seen in a maximum of 12 each(8%), hematoma in 5 (3%), and donor site wound dehiscence in 5 (3%), and there was no case of total flap failure or carotid blowout.

Discussion

We conclude that PMMC flap along with its modifications is the most cost-effective and associated with least complications.

Free Flap Versus Pedicled Flap Reconstruction of Laryngopharyngeal Defects: A 10-Year National Surgical Quality Improvement Program Analysis

OBJECTIVES/HYPOTHESIS

Large defects after total laryngectomy (TL) and total laryngopharyngectomy (TLP) often benefit from free flap (FF) or pedicled flap (PF) reconstruction to maintain continuity of the aerodigestive tract, protect great vessels, or reinforce pharyngeal closure. Although both techniques are commonly used, no consensus exists as to which results in fewer complications. The goal of this study was to determine if 30-day morbidity/mortality outcomes differ between PF and FF reconstruction in patients undergoing TL/TLP.

STUDY DESIGN

Retrospective cohort study.

METHODS

Patients were analyzed who underwent TL/TLP with reconstruction using records from the American College of Surgeons National Surgical Quality Improvement Program database (2005-2015).

RESULTS

A total of 347 patients were included; 204 received FF reconstruction, whereas 143 received PF reconstruction. FF reconstruction was more commonly used with TLP defects (P = .001). The total operative time in the FF (590 ± 140 minutes) was longer than the PF (441 ± 125 minutes) group (P < .0001). There was a higher rate of postoperative transfusions in those undergoing FF reconstruction (P = .022). There was no significant difference in complication rates among TLP patients. Among TL patients only, FF reconstruction had a higher association with wound infections than PFs (P = .040). On multivariate analysis, low hematocrit was associated with complications (P = .031). Age (P = .031) and congestive heart failure exacerbation (P < .001) were associated with increased hospital stay. Overall, there were no differences in readmissions, reoperations, or deaths between the groups.

CONCLUSIONS

Reported complication rates after TL/TLP remain high, despite widespread usage of vascularized flaps in reconstruction. This comparison reveals no significant difference in postoperative complications between patients who received PF and FF laryngopharyngeal reconstruction.

LEVEL OF EVIDENCE

4 Laryngoscope, 129:105-112, 2019.

Effectiveness of pectoralis major myocutaneous flap in the surgical management of oral cancer: A retrospective study

INTRODUCTION

Over 80,000 oral cancer cases get diagnosed each year in India, majority undergoing extensive resections owing to their late presentation. Pectoralis major myocutaneous (PMMC) flap is a pedicled axial pattern flap which is based on thoracoacromical artery. It is readily available as a viable alternative to free flap reconstruction, especially for the economically poor and malnourished patients. Its proximity to head and neck structures gives added advantage to reconstruct complex and large volume oral and maxillofacial defects. It provides a relatively good possibility of functional and aesthetic restoration providing both mucosal lining and skin cover.

MATERIALS AND METHODS

This was a prospective observational study of 29 PMMC flap reconstructions, conducted between 2013-2016. The reconstruction outcomes assessed in this study were divided into two categories namely "success" and "failure" based on certain functional parameters observed during follow-up of 1 year. The complications were broadly classified as major/minor and flap related/non-flap related. We assessed the feasibility of using a PMMC flap for reconstructing various subsites of oral cavity cancer. Further, the association of patient variables with complication rates and outcome of reconstruction were analysed.

RESULTS

Out of 29 patients overall complications were noted in 15 (51.7%) cases with a female preponderance. Flap-related complications were noted in 9 whereas non-flap-related complications were seen in 6 patients. Major and minor complications were noted in 2 (both flap related) and 13 cases respectively. Complete full thickness flap necrosis was not encountered in any patient. Patients with flap skin paddle size ≤ 36 cm² (n = 12) had significantly increased overall complication rates. Despite complications a high success rate (93.1%, n = 27) was achieved with this mode of reconstruction.

CONCLUSION

The PMMC flap reconstruction is a versatile, reliable and an affordable single staged procedure with a high success rate in terms of achieving treatment goals. Although it has moderately high complication rates, but PMMC flap proved to be a workhorse in locally advanced cases of head and neck cancer at the end of 1 year follow-up.

Comparison of outcomes with extensive segmental pectoralis major myocutaneous flap via the anterior axillary line and the conventional technique in oral and oropharyngeal cancer

BACKGROUND

This study compared the outcomes of an extensive segmental pectoralis major myocutaneous flap (esPMMF) and a conventional pectoralis major myocutaneous flap (PMMF).

METHODS

The study enrolled 91 patients with primary oral and oropharyngeal squamous cell carcinoma (SCC) who underwent radical resection followed by reconstruction of the defect using either an esPMMF via the anterior axillary line or a PMMF. The pedicle lengths of the esPMMF and PMMF were 22-28 and 18-22 cm, respectively. The esPMMF and PMMF had skin paddle dimensions of 5 × 8 to 7 × 14 cm and 6 × 7 to 8 × 17 cm, respectively.

RESULTS

The esPMMF pedicle was longer than that of the PMMF. The range of shoulder abduction was significantly greater in the esPMMF group and the donor-site aesthetic results were better.

CONCLUSION

The esPMMF has a longer pedicle flap, enables a greater range of shoulder abduction, and has a better aesthetic result than the conventional technique.

Anatomical versus functional motor points of selected upper body muscles

INTRODUCTION

In this study we aimed to identify nerve entry points (NEPs) of superficial skeletal muscles obtained by dissection of 20 human cadavers and compared them with motor points (MP) obtained previously by electrical stimulation.

METHODS

The biceps brachii (BB), trapezius (TZ), latissimus dorsi (LD), pectoralis major (Pmaj), and pectoralis minor (Pmin) muscles were dissected from human cadavers. NEP data (mean ± standard deviation) from each muscle were calculated. F-tests with Bonferroni corrections were used to compare NEPs and MPs.

RESULTS

The number of NEPs was 2 in BB, 1 in Pmin, 4 in TZ, and 3 in LD, whereas the total number in Pmaj varied from 3 to 5. NEPs and MPs were statistically equal only in Pmin and in the descending part of TZ.

DISCUSSION

The findings show crucial differences between NEPs and MPs, possibly impacting the effectiveness of several medical treatment strategies. Muscle Nerve 57: 460-465, 2018.

Pectoralis Major Myocutaneous Flap for Head and Neck Defects in the Era of Free Flaps: Harvesting Technique and Indications

The role of the pectoralis major myocutaneous flap (PMMF) in head and neck reconstruction is challenged recently due to its natural drawbacks and the popularity of free flaps. This study was designed to evaluate the indications and reliability of using a PMMF in the current free flap era based on a single center experience. The PMMF was harvested as a pedicle-skeletonized flap, with its skin paddle caudally and medially to the areola, including the third intercostal perforator, preserving the upper one third of the pectoralis major muscle. The harvested flap was passed via a submuscular tunnel over the clavicle. One hundred eighteen PMMFs were used in 114 patients, of which 76 were high-risk candidates for a free flap; 8 patients underwent total glossectomy, and 30 underwent salvage or emergency reconstruction. Major complications occurred in 4 patients and minor complications developed in 10. Tracheal extubation was possible in all cases, while oral intake was possible in all but 1 case. These techniques used in harvesting a PMMF significantly overcome its natural pitfalls. PMMFs can safely be used in head and neck cancer patients who need salvage reconstruction, who are high risk for free flaps, and who need large volume soft-tissue flaps.

Radial free forearm flap versus pectoralis major pedicled flap for reconstruction in patients with tongue cancer: Assessment of quality of life

Background

This study investigated the quality of life of Chinese patients with tongue cancer who had undergone immediate flap reconstruction surgery. In addition, we compared 2 groups of patients: those who had received radial forearm free flap (RFFF) surgery and others who had received pectoralis major myocutaneous flap (PMMF) surgery.

Material and Methods

Patients who received RFFF or PMMF reconstruction after primary tongue cancer treated with total and subtotal tongue resection were eligible for the current study. The patients’ demographic data, medical history, and quality of life scores (14-item Oral Health Impact Profile (OHIP-14) and the University of Washington Quality of Life (UW-QOL) questionnaires) were collected.

Results

A total of 41 of 63 questionnaires were returned (65.08%). There were significant differences between the 2 groups in the gender (p< .05). Patients reconstructed with RFFF performed better in the shoulder domains, in addition to worse appearance domains.

Conclusions

Using either RFFF or PMMF for reconstruction of defects after tongue cancer resection significantly influences a patient’s quality of life. Data from this study provide useful information for physicians and patients during their discussion of reconstruction modalities for tongue cancers.

Key words:Quality of life, radial forearm free flaps, pectoralis major myocutaneous flap, tongue cancer, oral function.

Regional Myocutaneous Flaps for Head and Neck Reconstruction: Experience of a Head and Neck Cancer Unit

Background:

Pectoralis major myocutaneous pedicle flap and other regional myocutaneous pedicle flaps (RMF), despite the superiority shown by free flaps, have remained relevant in the reconstruction of major head and neck oncologic defects. It has continued to find relevance as the preferred reconstruction of choice in some general head and neck reconstructive applications. While its role has been defined in developed environment, the same cannot be said for developing environment. The aim thus, was to review our experiences with RMFs in head and neck reconstructions, with a view to evaluating the indications and outcomes in a limited opportunity environment with some free flaps expertise.

Materials and Methods:

This was a retrospective cohort study from records of RMF cases performed for head and neck reconstruction, at the study institution. Eligibility for study inclusion comprised case cohorts with advanced head and neck diseases requiring ablative surgery and reconstruction with pectoralis major flaps and other RMFs.

Results:

A total of 17 cases were treated with RMFs. 10 were pectoralis major flaps while 7 were other RMFs. The main indications were failed free flaps and financial constraints. No regional pedicle flap failure was recorded; however, complication rate was 35.5% (6/17).

Conclusion:

Pectoralis major flaps and other RMFs were very reliable option for head and neck reconstruction. Free flap failure and financial constraints were the main indications for RMF reconstruction indications in head and neck reconstruction in a developing environment with some free flap expertise.

A new option with the pedicle thoracoacromial artery perforator flap for hypopharyngeal reconstructions

OBJECTIVES/HYPOTHESIS

The reconstruction of hypopharyngeal defects should focus on minimizing morbidity in a high-risk population while achieving adequate functional results with regard to the restoration of speech, swallowing, and airway control. We introduce the clinical application of the thoracoacromial artery perforator (TAAP) flap as a new reconstructive option for hypopharyngeal defects.

METHODS

This method was used to restore oncologic hypopharyngeal defects in nine patients: three who had previous irradiation and surgery, one who had previous surgery only, and another who had previous radiotherapy only.

RESULTS

All of the TAAP flaps of our series were transferred successfully and survived entirely. The donor sites were closed primarily in all cases. No fistulas, stenosis/strictures, dehiscence, or swelling occurred. Pectoralis major muscle function was completely preserved in all patients.

CONCLUSIONS

The use of TAAP flap to reconstruct hypopharyngeal defect is a simple and effective method that does not require microsurgical skills. The flap is thin and pliable, with a reliable blood supply.

LEVEL OF EVIDENCE

4. Laryngoscope, 126:1315-1320, 2016.

Extended vertical lower trapezius island myocutaneous flap versus pectoralis major myocutaneous flap for reconstruction in recurrent oral and oropharyngeal cancer

BACKGROUND

The purpose of this study was to compare the use of an extended vertical lower trapezius island myocutaneous flap (TIMF) and a pectoralis major myocutaneous flap (PMMF).

METHODS

A total of 39 patients with advanced recurrent oral and oropharyngeal squamous cell carcinoma (SCC) underwent salvage surgery followed by placement of either an extended lower vertical TIMF or PMMF for reconstruction. Twenty-one patients received extended lower vertical TIMFs, whereas 18 received PMMFs.

RESULTS

The pedicle length of the TIMF was longer than that of the PMMF, and the skin paddle of the TIMF was both wider and longer than the PMMF. No major complication developed in any of the patients. The TIMF group experienced a lower rate of minor flap failure than did the PMMF group.

CONCLUSION

Use of an extended vertical lower TIMF, which has a longer pedicle flap and a larger skin paddle than a PMMF, is optimal for reconstruction of major defects. © 2015 Wiley Periodicals, Inc. Head Neck 38: E159-E164, 2016.

[Renaissance of pedicled flaps in oral and maxillofacial surgery]

A retrospective analysis in the period 2007 to 2011 included 71 surgically treated patients for carcinoma of the head and neck region and subsequent reconstruction with 36 pedicled distant flaps and 47 free flaps. Patient specific parameters of data collection with SPSS 17.0 were age and sex distribution, TNM stage and treatment. The specific type of flap reconstruction, duration of surgery, complications, intensive care and inpatient treatment were recorded. The results showed that the healing process was uneventful in 26 (72.2 %) pedicled flaps, 14 (38.9 %) pedicled flaps were transplanted in a preoperatively irradiated area of the head and neck region and in 86.0 % with a positive healing process. Tumor stage, general physical condition of the patient and type of therapy are the key parameters for the choice of reconstruction.

Prophylactic chimera anterolateral thigh/vastus lateralis flap: preventing complications in high-risk head and neck reconstruction

PURPOSE

In high-risk head and neck cases treated with tumor resection and associated radical neck dissection, orocutaneous fistulas and wound breakdowns in the neck are relatively frequent and can have serious consequences, such as carotid blowout syndrome (CBS), the need for salvage reoperations, and prolonged recovery time. The authors present the application of a prophylactic chimeric anterolateral thigh (ALT) and vastus lateralis (VL) flap to prevent complications.

MATERIALS AND METHODS

A retrospective review was performed of a historical group (96 patients) of patients with head and neck cancer treated with tumor resection, radical neck dissection, and microsurgical reconstruction of the tumor site only and a prospective cohort (21 patients) in which a chimeric ALT-VL flap was used to simultaneously reconstruct the tumor site and sternocleidomastoid muscle to fill dead space and protect the carotid artery.

RESULTS

The rate of complications was higher in the historical group: CBS occurred in 4.1% and orocutaneous fistulas in 11.5% of patients; 5.2% of patients required major salvage surgery for a wound complication. In the cohort group, no CBS or orocutaneous fistula occurred and no major salvage surgical procedure was needed.

CONCLUSIONS

Prophylactic ALT-VL flaps in high-risk head and neck cancers provide adequate and long-lasting soft tissue coverage for the carotid artery, with minimal additional morbidity, and could be beneficial in preventing serious and life-threatening wound complications and the need for reoperation.

Indications and outcomes for 100 patients managed with a pectoralis major flap within a UK maxillofacial unit

There are few studies reporting the role of the pedicled pectoralis major (PPM) flap in modern maxillofacial practice. The outcomes of 100 patients (102 flaps) managed between 1996 and 2012 in a UK maxillofacial unit that preferentially practices free tissue reconstruction are reported. The majority (88.2%) of PPM flaps were for oral squamous cell carcinoma (SCC), stage IV (75.6%) disease, and there was substantial co-morbidity (47.0% American Society of Anesthesiologists 3 or 4). The PPM flap was the preferred reconstruction on 80.4% of occasions; 19.6% followed free flap failure. Over half of the patients (57%) had previously undergone major surgery and/or chemoradiotherapy. Ischaemic heart disease (P=0.028), diabetes mellitus (P=0.040), and methicillin-resistant Staphylococcus aureus (MRSA) infection (P=0.013) were independently associated with flap loss (any degree). Free flap failure was independently associated with total (2.0%) and major (6.9%) partial flap loss (P=0.044). Cancer-specific 5-year survival for stage IV primary SCC and salvage surgery improved in the second half (2005-2012) of the study period (22.2% vs. 79.8%, P=0.002, and 0% vs. 55.7%, P=0.064, respectively). There were also declines in recurrent disease (P=0.008), MRSA (P<0.001), and duration of admission (P=0.014). The PPM flap retains a valuable role in the management of advanced disease combined with substantial co-morbidity, and following free flap failure.

Comparison between anterolateral thigh perforator free flaps and pectoralis major pedicled flap for reconstruction in oral cancer patients--a quality of life analysis

The aim of this study was to compare the differences between anterolateral thigh perforator free flaps (ALTFF) and pectoralis major myocutaneous flap (PMMF) for reconstruction in oral cancer patients. Method Patients: who received free flap or PMMF reconstruction after ablation surgeries were eligible for the current study. The patients' demographic data, medical history, and quality of life scores(Medical Outcomes Study-Short Form-36 (MOS SF-36) and the University of Washington Quality of Life (UW-QOL) questionnaires were collected.

RESULTS

81 of 118 questionnaires were returned (68.64%). There was significant differences between two groups in the gender (P<0.005). Patients reconstructed with ALTFF had better appearance domains and better shoulders domains, in addition to better role emotion domains.

CONCLUSION

Using either PMMF or ALTFF for reconstruction of oral defects after cancer resection significantly influences a patient's quality of life. Data from this study provide useful information for physicians and patients during their discussion of reconstruction modalities for oral cancers.