Head and neck oncological reconstruction with 114 free flaps in a Portuguese tertiary cancer center

Introduction: The Portuguese experience in microsurgical reconstruction of the head and neck after oncological surgery is scantly described. The primary aim of this study was to characterize the use of microvascular reconstruction after head and neck tumor resection in a Portuguese tertiary oncological centerMaterial and Methods: The authors retrospectively evaluated 114 microvascular free flap procedures performed for head and neck reconstruction after oncological resection in a department of Head and Neck Surgery of a Portuguese tertiary oncological center. Patients were operated on from January 2012 to May 2018. Data on patient demographic features, tumour characteristics, perioperative complications, postoperative aesthetic and functional results, survival time and time to recurrence were extracted.Results: Most tumours mandating microsurgical reconstruction were mucosal squamous cell carcinomas (85%) and were located in the oral region (95.6%). Around 45% of the patients had a T4a tumour and 30% a T2 tumour. Cervical metastases were present in 45.6% of the cases. The radial forearm flap and the fibular flap were the most commonly used microsurgical reconstructive options (58% and 41%, respectively). More than 80% of patients had no post-operative complications. Partial necrosis of the flap occurred in 6.1% of patients, while total flap necrosis occurred in 3.5% of cases. Aesthetic and functional results were considered at least satisfactory in all patients in which the flaps survived.Discussion: This study is by far the largest series of microsurgical head and neck reconstruction after oncological surgery reported by a single tertiary centre in Portugal. Survival and functional benefits are similar to those reported in other large oncological centres in the world.Conclusion: Microvascular reconstruction seems like a reliable treatment option in head and neck oncological surgery at our institution.

1106 Timing of Free Flap Reconstruction in Sarcoma Patients

Aim In 1986 Godina reported that microsurgical reconstruction of traumatic wounds in the extremities undertaken with >72-hour delay caused significant tissue damage, hampering the microsurgical reconstruction and significantly increasing complication rates. It is our opinion that surgical treatment of sarcoma in the extremity is comparable to trauma surgery, given the extent of tissue destruction. The nature of sarcoma management often means that performing definitive reconstruction within 72 hours is not possible. We analyse the outcomes of our ‘delayed’ extremity reconstruction. Method We performed a retrospective analysis of 52 consecutive cases of free flap extremity reconstruction following sarcoma excision. Data was analysed for time from resection to reconstruction, significant patient demographics, details of the flap and post-operative complications. Results Between March 2017 and December 2020, we performed 52 free flaps for sarcoma reconstruction in the extremities. Mean time to reconstruction was 28 days (Median 15 days, Range: 0-316 days), with two reconstructions within 72 hours of excision. 9 patients had neoadjuvant chemo- or radiotherapy. Three patients had significant post-operative complications; two flaps failed intra-operatively (3.8%) and one patient (1.9%) experienced wound infection. Conclusions Godina’s study demonstrated the negative impact of delaying surgical reconstruction in the traumatised extremity, with a 12% failure and 17.5% infection rate in delayed reconstruction (72 hours to 3 weeks). Our results show that with advancements in microsurgical techniques and physiological optimization, it is possible to safely and successfully undertake delayed (>72 hours) microsurgical extremity reconstruction in sarcoma patients and achieve low flap failure and infection rates.

Microsurgical reconstruction of the upper limb

This chapter describes the microsurgical options for reconstruction of the hand, including replantation of amputated parts, nerve reconstruction, and free tissue transfer for reconstruction. The various free flap options for reconstruction of skin, soft tissue, and bone defects including the reconstruction of digits with toe transfer, are discussed.

Implementation and Validation of Free Flaps in Acute and Reconstructive Burn Care

Microsurgical free flap reconstruction in acute burn care offers the option of reconstructing even challenging defects in a single stage procedure. Due to altered rheological and hemodynamic conditions in severely burned patients, it bears the risk of a higher complication rate compared to microsurgical reconstruction in other patients. To avoid failure, appropriate indications for free flap reconstruction should be reviewed thoroughly. Several aspects concerning timing of the procedure, individual flap choice, selection and preparation of the recipient vessels, and perioperative measures must be considered. Respecting these specific conditions, a low complication rate, comparable to those seen in microsurgical reconstruction of other traumatic limb defects, can be observed. Hence, the free flap procedure in acute burn care is a relatively safe and reliable tool in the armamentarium of acute burn surgery. In reconstructive burn care, microsurgical tissue transfer is routinely used to treat scar contractures. Due to the more robust perioperative condition of patients, even lower rates of complication are seen in microsurgical reconstruction.

Same-Admission Microvascular Maxillofacial Ballistic Trauma Reconstruction Using Virtual Surgical Planning: A Case Series and Systematic Review

Study Design: Retrospective case series; systematic review. Objective: It is unknown whether the use of virtual surgical planning (VSP) to facilitate same-admission microsurgical reconstruction of the mandible following acute maxillofacial ballistic trauma (MBT) is sufficient to achieve definitive reconstruction and functional occlusion. Methods: A single-center retrospective analysis was conducted for patients who underwent microsurgical reconstruction of the mandible using VSP after acute MBT. The PubMed/MEDLINE, Embase, ScienceDirect, and Scopus databases were systematically reviewed using blinded screening. Studies were evaluated via thematic analysis. Results: Five patients were treated by same-admission and microsurgical reconstruction of the mandible using VSP. We observed an average of 16.4 ± 9.1 days between initial presentation and reconstruction, an average length of stay of 51.6 ± 17.9 days, 6.2 ± 2.8 operations, and 1.6 ± 0.9 free flaps per patient. Four types and 8 total flaps were employed, most commonly the anterior lateral thigh flap (37.5%). Care yielded complete flap survival. Each patient experienced at least 1 minor complication. All patients achieved centric occlusion, oral nutrition, and an approximation of their baseline facial aesthetic. Follow up was 191.0 ± 183.9 weeks. Systematic review produced 8 articles that adhered to inclusion criteria. Consensus themes in the literature were found for clinical goal and function of VSP when practicing MBT reconstruction, yet disagreement was found surrounding optimal treatment timeline. Conclusions: Same-admission microsurgical reconstruction after MBT is safe and effective to re-establish mandibular form and function. VSP did not delay reconstruction, given the need for preparation prior to definitive reconstruction.

Recent Smoking History Is Not Associated With Adverse 30-Day Standardized Postoperative Outcomes Following Microsurgical Reconstructive Procedures of the Upper Extremity: Un Antécédent de Tabagisme Récent n’est Pas Associé à des Événements Indésirables Postopératoires Standardisés 30 Jours après des Procédures Microchirurgicales de Reconstruction du Membre Supérieur

Background: Upper extremity (UE) microsurgical reconstruction relies upon proper wound healing for optimal outcomes. Cigarette smoking is associated with wound healing complications, yet conclusions vary regarding impact on microsurgical outcomes (replantation, revascularization, and free tissue transfer). We investigated how smoking impacted 30-day standardized postoperative outcomes following UE microsurgical reconstruction. Methods: Utilizing the National Surgical Quality Improvement Program, all patients who underwent (1) UE free flap transfer (n = 70) and (2) replantation/revascularization (n = 270) were identified. For each procedure, patients were stratified by recent smoking history (current smoker ≤1-year preoperatively). Baseline demographics and standardized 30-day complications, reoperations, and readmissions were compared between smokers and nonsmokers. Results: Replantation/revascularization patients had no differences in sex, race, or body mass index between smokers (n = 77) and nonsmokers. Smokers had a higher prevalence of congestive heart failure (5.2% vs 1.0%, P = .036) and nonsmokers were more often on hemodialysis (15.6% vs 10.4%, P = .030). Free flap transfer patients had no differences in age, sex, or race between smokers (n = 14) and nonsmokers. Smokers had a longer length of stay (6.6 vs 4.2 days, P = .001) and a greater prevalence of chronic obstructive pulmonary disorder (COPD; 7.1% vs 0%, P = .044). Recent smoking was not associated with increased odds of any 30-day minor and major standardized surgical complications, readmissions, or reoperations following UE microsurgical reconstruction via free flap transfer or replantation/revascularization. Baseline diagnosis of COPD was also not a predictor of adverse 30-day outcomes following free flap transfer. Conclusion: Recent smoking history was not associated with any 30-day adverse outcomes following UE microsurgical reconstruction via replantation/revascularization or free flap transfer. In light of these findings, further investigation is warranted, with particular focus on adverse events specific to free flaps and replantation/revascularization.