A Comprehensive Flap Classification: Beyond the Reconstructive Ladder.

ABSTRACT: Perforator flaps have progressed massively in the last years. The improved vascular imaging techniques and the use of supermicrosurgery have shifted the practice from the traditional predefined angiosomal flaps to the endless variations of custom-made flaps. In this article, we propose a broadened classification of free-style flaps in 3 categories, the angiosomal, including all traditional perforator flaps and their variations, the extra-angiosomal, including flaps that are manufactured to include tissue from a different angiosome, such as turbocharging or supercharging a flap, and neoangiosomal flaps, which are based on the process of neoangiogenesis on autologous or allogenous tissue, such as the venous flow-through flap and integra flap. With this classification, we hope to help unify the classifications and, by doing so, facilitate the exchange of ideas, techniques and knowledge.MeSH terms: surgical flap / classification, terminology as topic.

A Novel Approach to Facial Reanimation and Restoration Following Radical Parotidectomies.

Background: Parotidectomies are indicated for a variety of reasons. Regardless of the indication for surgery, facial reanimation may be required because of facial nerve sacrifice or iatrogenic damage. In these cases, facial restoration performed concurrently with ablative surgery is considered the gold standard, and delayed reanimation is usually not attempted. Methods: A retrospective review of all patients who underwent parotidectomies from 2009 to 2022 in a single institution was performed. Indications, surgical techniques, and outcomes of an algorithmic template were applied to these cases using the Sunnybrook, Terzis scores, and Smile Index. A comparison was made between immediate vs. late repairs. Results: Of a total of 90 patients who underwent parotidectomy, 17 (15.3%) had a radical parotidectomy, and 73 (84.7%) had a total or superficial parotidectomy. Among those who underwent complete removal of the gland and nerve sacrifice, eight patients (47.1%) had facial restoration. There were four patients each in the immediate (n = 4) and late repair (n = 4) groups. Surgical techniques ranged from cable grafts to vascularized cross facial nerve grafts (sural communicating nerve flap as per the Koshima procedure) and vascularized nerve flaps (chimeric vastus lateralis and anterolateral thigh flaps, and superficial circumflex perforator flap with lateral femoral cutaneous nerve). Conclusions: The algorithm between one technique and another should take into consideration age, comorbidities, soft tissue defects, presence of facial nerve branches for reinnervation, and donor site morbidity. While immediate facial nerve repair is ideal, there is still benefit in performing a delayed repair in this algorithm.

Comment on Kehrer et al. Using High-Resolution Ultrasound to Assess Post-Facial Paralysis Synkinesis-Machine Settings and Technical Aspects for Facial Surgeons. Diagnostics 2022, 12, 1650.

In "Using High-Resolution Ultrasound to Assess Post-Facial Paralysis Synkinesis-Machine Settings and Technical Aspects for Facial Surgeons", Andreas Kehrer et al. present ultrasound (US) device settings for facial muscle examination to be used by facial surgeons to improve their workflow and enhance their image quality [...].

Comparative Study of Multimodal Therapy in Facial Palsy Patients.

Introduction In chronic facial palsy, synkinetic muscle overactivity and shortening causes muscle stiffness resulting in reduced movement and functional activity. This article studies the role of multimodal therapy in improving outcomes. Methods Seventy-five facial palsy patients completed facial rehabilitation before being successfully discharged by the facial therapy team. The cohort was divided into four subgroups depending on the time of initial attendance post-onset. The requirement for facial therapy, chemodenervation, or surgery was assessed with East Grinstead Grade of Stiffness (EGGS). Outcomes were measured using the Facial Grading Scale (FGS), Facial Disability Index, House-Brackmann scores, and the Facial Clinimetric Evaluation scale. Results FGS composite scores significantly improved posttherapy (mean-standard deviation, 60.13 ± 23.24 vs. 79.9 ± 13.01; confidence interval, -24.51 to -14.66, p < 0.0001). Analysis of FGS subsets showed that synkinesis also reduced significantly ( p < 0.0001). Increasingly, late clinical presentations were associated with patients requiring longer durations of chemodenervation treatment ( p < 0.01), more chemodenervation episodes ( p < 0.01), increased doses of botulinum toxin ( p < 0.001), and having higher EGGS score ( p < 0.001). Conclusions This study shows that multimodal facial rehabilitation in the management of facial palsy is effective, even in patients with chronically neglected synkinesis. In terms of the latency periods between facial palsy onset and treatment initiation, patients presenting later than 2 years were still responsive to multimodal treatment albeit to a lesser extent, which we postulate is due to increasing muscle contracture within their facial muscles.

Overcoming the Patent Gap: A Guide to Patenting for Plastic Surgeons.

BACKGROUND: Patenting protects innovation, fosters academic incentives, promotes competition, and generates new revenue for clinician-inventors and their institutions. Despite these benefits, and despite plastic surgery's history of innovation, plastic surgery-related patent applications are few. The goal of this article was to use unpublished data and formulate a robust discussion. METHODS: The U.S. Patent and Trademark Office's boolean search was investigated between the timeline of 1975 and June 23, 2020, to identify patents related to the key phrases to contrast patent (both, issued and filed) tally in each specialty. Queries for two key phrases related to plastic surgery and a core plastic surgical activity, both with and without the added term "plastic surgery," were performed. RESULTS: Total patents with "cardiology" outnumber those with "plastic surgery" by 22,450 versus 7749 (i.e., almost 3:1). The overwhelming number of patents with "cosmetic" are non-plastic-surgery related: 87,910 total versus 2782 for those with plastic surgery. The corresponding numbers for "wound healing" are 36,359 versus 2703. Reasons for the patent gap between clinical innovations in plastic surgery and number of patents in our field are identified. Clear steps to bridge this gap are delineated that include a step-by-step process for patenting, from idea creation through commercialization. The authors propose "breakthrough to bank," a framework wherein academic medical centers can create an environment of innovative freedom, establish the infrastructure for technological transfer of intellectual property, and generate a pipeline toward commercial applications. CONCLUSIONS: Innovation and inventions are important hallmarks for the progress of plastic surgery. Using a stepwise process, it may be possible to convert ideas into patents.