SMAS repositioning technique utilizing cog thread: Anatomical perspectives.

INTRODUCTION: Face-lifting surgeries were once common among individuals over 60 years old due to skin laxity, but recent trends favor thread lifting in this age group. Understanding dynamic changes in facial anatomy during postural shifts is essential. METHOD: Fresh cadaver studies have demonstrated the passage of threads through the superficial musculoaponeurotic system (SMAS) layer, confirming the efficacy of the technique. Proper insertion depth targeting SMAS repositioning, rather than superficial skin layers, is crucial. RESULT: The natural movement of tissues secured by thread (N-Cog and N-Fix, N-Finders Inc., Korea) insertion results in lifting effects. However, complications may arise if threads affect deeper facial muscles, leading to discomfort. Fibrous septa play a significant role in guiding thread placement, with different densities influencing thread maneuverability and tissue response during lifting. CONCLUSION: Procedures targeting SMAS repositioning using threads aim to maintain the new position of relocated tissues. Understanding structural variations in facial regions informs thread selection and placement. Aligning threads with tissue movement and the intended SMAS layer positioning is vital to prevent complications. Balancing thread insertion depth and tissue traction is critical for successful outcomes. Modern thread lifting techniques prioritize SMAS repositioning, enhancing lifting effects while ensuring procedure safety and efficacy.

Clinical Practice Patterns in Facelift Surgery: A 15-Year Review of Continuous Certification Tracer Data from the American Board of Plastic Surgery.

BACKGROUND: This study evaluates change in practice patterns in facelift surgery based on a 15-year review of tracer data collected by the American Board of Plastic Surgery as part of the Continuous Certification process. METHODS: Tracer data for facelift was reviewed from 2006 to 2021. The 15-year collection period was divided into an "early cohort (EC)" from 2006 to 2014 and a "recent cohort (RC)" from 2015 to 2021. RESULTS: Of 3400 facelifts (1710 EC/1690 RC) performed, 18% were done in hospital and 76% were done in an accredited office facility. Ninety one percent of patients were female with an average age of 61 years. There was an increase in the number of secondary facelifts (4% EC vs 18% RC; p < 0.001) and an increased number of patients concerned about volume loss/deflation (25% EC vs 37% RC; p < 0.001). The surgical approach to the SMAS involved plication (40%), flaps (35%), SMASectomy (22%) and MACS lift (6%). One percent of facelifts were subperiosteal and 8% skin-only. Significantly more surgeons used the lateral SMAS flap (14% EC vs 18% RC, p < 0.005), while less used an extended SMAS flap (21% vs 18%; p = 0.001) and MACS lift (10% EC vs 6% RC; p = 0.021) techniques. The concomitant use of facial fat grafting is becoming more common (15% EC vs 24% RC, p = 0.0001). CONCLUSIONS: A 15-year review of ABPS tracer data provides an excellent venue for the objective assessment of the current status of facelift surgery, and key changes in practice patterns during that time. LEVEL OF EVIDENCE III: This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .

Superior Vector Plication of the Mobile Anterior Midface: The Delta Facelift.

BACKGROUND: Traditional plication techniques have been ineffective in addressing the anterior midface when compared to the sub-superficial musculoaponeurotic system (SMAS) "deep plane" approaches. However, by moving the plication much closer to the mobile medial fat tissues, a more effective and long-lasting plication can be accomplished without releasing the SMAS layer. OBJECTIVES: The authors' "Delta facelift" approach combines a rotation vertical advancement of the midface fat with a dual-vector platysmaplasty and deep cervicoplasty as indicated for a harmoniously youthful neck. METHODS: A retrospective chart review was performed on all patients who underwent facial rejuvenation with the Delta facelift technique between January 1, 2012, and May 30, 2021, for patient demographics, procedure details, outcomes, and complications. RESULTS: A total of 283 patients underwent Delta facelift (273 females, 10 males). The average age was 60.8 years old. Primary facelift was performed in 229 patients, whereas 54 facelifts were secondary or further procedures. Adjunctive procedures included autologous fat grafting (93%), blepharoplasty (52%), and skin rejuvenating procedures (35%). There were 11 self-resolving neuropraxias, 6 minor hematomas, and 6 infections. Nine patients underwent repeat Delta facelift at an average of 9.3 years. CONCLUSIONS: The Delta rotation vertical advancement of the anterior facial fat counters the descent and deflation associated with facial aging. Dual-vector platysmaplasty, with or without myotomy, effectively manages the jowl and delineates the jawline. Addition of deep cervicoplasty is recommended for patients with oblique necks or those with subplatysmal volume excess.

Progressive Contouring of the Platysma With Barbed Sutures.

BACKGROUND: As the prevalence of neck lift surgeries increases, the field is continually enriched by evolving techniques for enhancing neck aesthetics. While many recent publications focus on deep neck procedures, it is essential not to overlook the significance of platysmal contouring as an integral aspect of neck rejuvenation surgery. Accordingly, we would like to elucidate our unique approach to contouring the platysma. OBJECTIVES: This study was designed to assess the efficacy of the progressive contouring concept, a technique in which the neck is reshaped with barbed sutures synergistically with other treatment strategies. METHODS: Our study encompassed 337 patients who received neck rejuvenation treatment with the progressive contouring technique from 2014 to 2021. We conducted a retrospective review to evaluate the change in cervicomental angle (CMA) with Mirror software during the preoperative and postoperative stages. RESULTS: The study sample predominantly comprised females (304 out of 337), with a median age of 61 years (24-88). Most patients (95%) underwent deep cervicoplasty, with a surgical net applied in all cases for skin adaptation. After a median follow-up of 14 months, significant improvements were observed in CMA values (reduced from 149.8° to 106.7°). This demonstrated statistically significant differences when comparing preoperative and postoperative outcomes. CONCLUSIONS: Progressive shaping of the neck with barbed sutures is an effective technique in neck rejuvenation. It utilizes multipoint and multivector plication, particularly when integrated with other adjunctive surgical maneuvers.

Facelift: Assessment of Total Platysma Muscle Transection to Prevent the Recurrence of Platysmal Bands.

INTRODUCTION: Determining which facelift technique yields the most effective long-term rejuvenation results and ensures optimal stability over time remains a significant question in cosmetic surgery: Does the most invasive surgery lead to the best long-term outcomes? This study aims to evaluate the authors' approach using total platysma muscle transection to prevent platysma band recurrence, and to provide anatomical observations supporting and justifying their procedure. MATERIAL AND METHODS: A preliminary study in anatomical basic sciences was conducted to establish the rationale for our method. A prospective single-blind study was conducted, involving eighty patients seeking facial rejuvenation with platysmal band correction. They underwent face and neck-lift procedures with total platysma transection by the same surgeon between May 2013 and May 2016. Cosmetic outcomes were assessed using the Face and Neck-Lift Objective Photo-Numerical Assessment Scale. Scores by three blind evaluators before surgery, at 1 and 5 years postoperatively, were compared using a matched T Test (p < 0.05). RESULTS: The preliminary anatomical study revealed a consistent anastomotic system between the cervical branch of the facial nerve and the branches of the cervical plexus. Incomplete platysma section during a facelift might contribute to platysma band recurrence. The clinical study demonstrated satisfactory outcomes, with significant overall appearance improvement (p < 0.00001) and no platysma band recurrence. Complication rate was low. CONCLUSION: The authors' technique achieved satisfactory long-term results with minimal complications. However, due to the lengthy operating time and steep learning curve, it should be reserved for highly motivated patients. LEVEL OF EVIDENCE II: This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .

The deep cervical fascia neck lift.

The main and more frequent problem in face lift is recurrence of neck bands. To improve face lift stability, a new aging analysis is proposed. The visible sign of face aging is skin excess. Superficial musculo aponeurotic system (SMAS) retraction is a much less visible sign. Nevertheless, botulinum toxin injections elongate muscles of the SMAS and rejuvenate the face. In the Face Recurve Concept, MRI studies prove the mimic muscles retraction that comes with aging. Face lift techniques include SMAS plication, traction or excision, which increases discrepancy between the envelope, the skin and the core, the SMAS. As skin excision is poorly efficient because performed posteriorly, far from the anterior skin excess located at the medial neck, the association to SMAS retraction exacerbates the gradient difference between envelop and core. This analysis shows that it is paramount to preserve the SMAS. (1) The sub-skin dissection has to be executed moving beyond the marionette fold and the paramedian neck bands; (2) no action is performed on the SMAS, only an horizontal section of the platysma at the hyoid height that will avoid platysma band recurrence. A botulinum toxin injection performed herein just after, blocks muscle regeneration; (3) the skin is pulled backward with a clear posterior transposition to the platysma. The skin at the cervico-mental angle and all along the cervico-mental crease is fixed to the deep cervical fascia, in the gap between the edges of the sectioned platysma, blocking muscle recreation. A resorbable barbed thread is used, with a first bite made at the cervico-mental angle through the deep cervical fascia then in the direction of the mastoid, with long bites through the deep cervical fascia versus short subcutaneous bites. Thanks to this strong shift, the cervico-mental crease is definitely recreated with no need of pre-auricular skin tension. Thirty-two patients have been operated with this technique on a one-year period. The results are a lot more stable and swelling is lowered down to the minimum.

The Mastoid Crevasse and 3-Dimensional Considerations in Deep Plane Neck Lifting.

BACKGROUND: Advances in face and neck lifting involve release of tethering points along the superficial musculoaponeurotic system-platysma complex to freely manipulate the deep natural glide plane in the face and neck. OBJECTIVES: The aim of this article was to determine a combination of deep plane techniques for addressing the face and neck and to elucidate, for the first time, a measurable endpoint for the gonial angle. Analysis of deep plane tethering and decussation zones was also undertaken. METHODS: Extended deep plane surgery performed in 79 patients (158 hemifaces; age, 30-75 years; 95% female), over a 3-month period, was reviewed. Patients were followed for 1 year. Measurements were performed systematically during deep plane face and neck lifting. RESULTS: Before intervention, the mean [standard deviation] gonial depth was 9.4 [3.6] mm on the left and 8.3 [2.7] mm on the right. The mean depth created below the gonial angle when measuring the traditional suspension to the anterior mastoid was 15.8 [3.3] mm on the left and 13.7 [2.5] mm on the right. The distance postoperatively when measuring the gonial depth after performing the crevasse technique was 23.2 [2.2] mm on the left and 22.5 [2.5] mm on the right. This represents a mean increase in the advancement of 7.4 mm on the left and 8.8 mm on the right (average, 8.1 mm) which was demonstrated to be statistically significant bilaterally (P < .0001). CONCLUSIONS: The deep plane techniques described here aid manipulation of the deep plane and deep neck space, while also providing measurable endpoints and more effective modes of fixation by utilizing the mastoid crevasse. The use of techniques that release tension and allow redrape produce the most natural and well-balanced results.

Skin Anatomy and Analysis.

This article provides a comprehensive review and strong reference for facial and neck anatomy. An anatomic foundation is built for the dermatologic concepts, techniques, procedures, and surgeries detailed in noninvasive skin treatments. Superficial anatomic landmarks have been established that allow for more nuanced navigation and measurement of facial features. Throughout this article, we discuss key anatomic features of the face and neck, compare dermal thickness in various regions and ethnic anatomic differences, review insertion points of retaining ligaments of the superficial musculoaponeurotic system, and detail diagnostic tools including ultrasound and optical coherence tomography analysis of the skin.

Surgical Management of Platysma Bands: A Narrative Review of Evolving Concepts and Changing Techniques for Neck Rejuvenation.

INTRODUCTION: Platysmal bands are an unappealing feature of the aging face. Incomplete understanding of anatomy and physiology of platysmal bands has led to a long period of flawed or incomplete treatment. This review aims to elucidate the correct study of platysmal bands along with the most recent surgical treatments. MATERIALS AND METHODS: To identify all articles related to the topic of surgical management of platysmal bands, an extensive search was performed on PubMed and Medline databases for all articles related to platysmal bands from 1990 to 2023. The articles were then reviewed by 2 independent reviewers, and all relevant articles were selected. The search was narrowed down to clinical trials and cohort studies. RESULTS: 6130 articles were identified, of which 21 articles matched the inclusion criteria and were selected for the study totaling 2331 patients. Different surgical procedures were mentioned. Assessment of results was mostly subjective and done by the surgeon. CONCLUSION: Composite platysma-skin flap repositioning as opposed to wide skin undermining with or without submental incisions is being gradually accepted as a valid approach, with closed platysma myotomy and platysma denervation emerging as effective less invasive surgical modalities. Nevertheless, merits of more extensive procedures involving wide skin undermining and anterior platysma plication must not be lightly forgotten. LEVEL OF EVIDENCE III: This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors   www.springer.com/00266 .

Temporal Facelift: A New Method for Temporal and Mid-face Lifting.

Lifting the temporal and mid-face areas creates a very dynamic change in the facial appearance and different planes of dissection were described before. In this article, a new plane of dissection is described which allows the surgeon to perform a very quick and safe dissection in both the temporal and mid-face regions. Patients were operated on using the presented technique and brow lift, cantopexy, and mid-facelift were performed. The outcome of the surgery was analyzed by the authors from standardized photos before and 6 months after the surgery with measurements of the brow and lateral canthus. The plane of dissection is just over the subgaleal fascia which is actually the sub-superficial musculoaponeurotic system layer in the mid-face. This plane of dissection is easy and quick and creates a very mobile mid-face and temporal flap. Forty female patients were operated using the presented technique with a mean follow-up period of 15 months, the longest follow-up was 26 months. No major complication was encountered in these patients. In 5 patients, transient unilateral frontal branch palsy was encountered. In 1 patient, bilateral temporal area depression was observed 8 months after the surgery and treated with a fat injection under local anesthesia. One patient had alopecia in the temporal suture line which can be covered with hair. Temporal facelift is a versatile method with long-lasting results due to its important features; creating a very mobile flap for suspension dissection area, a large surface for adherence, and numerous sutures sharing the tension on the key sutures. Despite its slightly difficult early healing period, the technique should be kept in mind for the rejuvenation of the periorbital area and mid-face. Level of Evidence: Level I.

Evaluation of functional and aesthetic outcomes of free dermal fat graft versus superficial musculoaponeurotic system flap after superficial parotidectomy: randomized clinical trial.

BACKGROUND: Parotidectomy is the standard procedure for treatment of many parotid lesions; however, it has several drawbacks. Facial asymmetry and Frey's syndrome are the most annoying complications to patients. Insertion of interpositioning grafts into the parotidectomy bed can decrease these complications significantly. Free dermal fat graft (FDFG) and superficial musculoaponeurotic system (SMAS) flap have very promising results. This RCT aimed to compare these two techniques regarding functional and aesthetic outcomes. METHODS: Between February 2016 and October 2021, adult patients undergoing superficial conservative parotidectomy in a single centre for a benign indication were randomized into two equal groups using a closed envelope method. In one group, FDFG was inserted at the parotidectomy bed, whereas, in the other group, SMAS flap was performed. Preoperative, operative, and postoperative data were recorded and analysed. The primary outcome was the development of Frey's syndrome. RESULTS: Seventy-eight patients were randomized into two equal groups of 39 patients. There was no significant difference between the two groups regarding development of Frey's syndrome. There was no significant statistical difference between study groups regarding demographic data, co-morbidities, parotid pathologies, specimen volumes, total operating time, and postoperative complications. A tendency for over correction was observed in FDFG and under correction in SMAS flap. There was no statistically significant difference between the study groups regarding the patients' aesthetic satisfaction with the majority displaying excellent satisfaction with no poor results. CONCLUSION: FDFG and SMAS flap are simple, rapid, and reliable procedures and are effective in improving both functional and aesthetic outcomes post-parotidectomy. They have comparable results; however, selection of either procedure can be determined according to patient and tumour characteristics. Registration number: NCT05452837 (http://www.clinicaltrials.gov).

The Key Structure of the Facial Soft Tissue: The Superficial Musculoaponeurotic System.

The superficial musculoaponeurotic system (SMAS) was advocated by Mitz and Peyronie in 1976. The concept of this superficial fascia was established by surgical findings of facelift surgery and is familiar to plastic surgeons and anatomists. However, detailed characteristics of this fascia are still not widely known among head and neck surgeons. Moreover, the SMAS is generally located at the parotid and cheek regions and divides facial fat into superficial and deep layers. The SMAS connects to the superficial temporal fascia cranially and to the platysma caudally. The frontal muscle and the peripheral part of the orbicularis oculi are also in the same plane. The exact expanse of the SMAS in the face is controversial. Some authors claimed that the SMAS exists in the upper lip, whereas others denied the continuity of the SMAS to the superficial temporal fascia in a histological study. There are various other opinions regarding SMAS aside from those mentioned above. The concept of the SMAS is very important for facial soft tissue surgeries because the SMAS is a good surgical landmark to avoid facial nerve injuries. Therefore, this article summarized SMAS from an anatomical point of view.

Defining the Cervical Line in Face-Lift Surgery: A Three-Dimensional Study of the Cervical and Marginal Mandibular Branches of the Facial Nerve.

BACKGROUND: Continuous sub-superficial musculoaponeurotic system (SMAS) dissection in the cheek with subplatysmal dissection in the neck is an important feature of many face-lift techniques, yet the neural anatomy in this area remains unclear, and recommendations regarding continuous dissection of these adjacent areas vary widely. The purpose of this study was to define the vulnerability of the facial nerve branches in this transitional area from the face-lift surgeon's perspective and to specifically identify the location of the cervical branch penetration through the deep cervical fascia. METHODS: Ten fresh and five preserved cadaveric facial halves were dissected under 4× loupe magnification. The skin was reflected, followed by elevation of a SMAS-platysma flap, with identification of the location of cervical branch penetration through the deep cervical fascia. The cervical and marginal mandibular branches were then dissected retrograde through the deep cervical fascia to the cervicofacial trunk to confirm identifications. RESULTS: Cervical and marginal mandibular branch anatomy was found to be similar to that of the other facial nerve branches, all of which initially course deep to the deep fascia in their postparotid course. The emergence of the terminal branch or branches of the cervical branch through the deep cervical fascia was consistently at or distal to a line from a point 5 cm below the mandibular angle on the anterior border of the sternocleidomastoid muscle to the point where the facial vessels course over the mandibular border (cervical line). CONCLUSIONS: Continuous dissection of the SMAS in the cheek, with subplatysmal dissection in the neck crossing over the mandibular border, is possible without jeopardizing the marginal mandibular or cervical branches if done proximal to the cervical line. This study serves as the anatomical justification for continuous SMAS-platysma dissection, and has implications for all types of SMAS flap manipulations.

An Anatomical Dissection Method for Observation of Fibrous Facial Structures.

BACKGROUND: In recent years, structures including the superficial musculoaponeurotic system and retaining ligaments that support the facial soft tissue have been clarified. However, these structures are very difficult to observe in their entirety by the standard gross anatomical procedure (ie, dissection from superficial to deep layers). Furthermore, accurate descriptions of these structures are rare in both anatomical and plastic surgery textbooks. The aim of this study was to clarify the facial fibrous structures in a gross anatomical view. METHODS: The authors' novel method used soft facial tissue and bone. The tissue was fixed in gelatin and sectioned at a thickness of 5 to 10 mm. Each section was placed on a wooden board; the bone was then pinned, and the skin was pulled outward with sutures to hyperextend the soft tissue. Subsequently, the loose connective tissue was torn and fat tissue was removed under a surgical microscope. After the removal of fat tissue, the fibrous facial structures (eg, the superficial musculoaponeurotic system and retaining ligaments) could be observed clearly. RESULTS: The thickness of the sections allowed three-dimensional observation, such that a structure located deep within a section could be clearly observed. The expansion of soft tissue facilitated observation of the facial layer and fibrous structures, and the locations of nerves and vessels. Therefore, the facial layer structure was readily discerned. CONCLUSION: This method is likely to be very useful in the field of plastic surgery because it enabled intuitive identification of facial layers and their characteristics. CLINICAL RELEVANCE STATEMENT: The dissection method developed by the authors reveals the connected morphology of each tissue of the face, thus providing basic data for analyzing soft tissue changes due to aging and gravity. This will be useful for the development of anti-aging medicine.

An Evidence-Based and Case-Based Comparison of Modern Face Lift Techniques.

BACKGROUND: Facial aging is a multifactorial process that affects each component of facial anatomy. The two general groups of face lift techniques are superficial musculoaponeurotic system (SMAS) elevation and SMAS manipulation. The purpose of this article is to describe and compare the advantages, disadvantages, and limitations of face lift techniques. METHODS: A systematic review was performed to describe current outcomes evidence for face lift techniques. A subcohort of articles was selected for case-based analysis based on designated facial assessment criteria. Analysis was performed to determine the advantages, disadvantages, and limitations of each respective technique. RESULTS: A total of 65 articles were selected for systematic review, of which 15 met criteria for case-based review. Patient satisfaction was found to be equivocal for various face lift techniques. Specific advantages and disadvantages for each face lift technique were dependent on the techniques' approach to skin shift vector along with its degree of mobilizing superficial facial fat. Facial fat grafting was universally applicable for restoration of deep malar volume. Facial fat grafting was also used differently depending on the SMAS technique to address its specific limitations. CONCLUSIONS: The authors' review confirms that there are many methods to obtain excellent outcomes in facial rejuvenation. Experienced surgeons are able to obtain consistent results through a variety of techniques based on understanding the aesthetic needs of the individual patient, the quality of the soft tissues being manipulated, and how to vary a specific technique to reach desired aesthetic end points.

Arcade Sutures to Minimize Ear Displacement in Rhytidectomy.

Ear deformities after rhytidectomy are not uncommon and have a significant impact on cosmetic success. We postulate the use of horizontal mattress suspension sutures in the anterior face anchored to the deep temporalis fascia (DTF) during rhytidectomy allows for a vertical lift while minimizing the risk to the frontal branch of the facial nerve and decreasing forward rotation of the ear. To compare auricular displacement during rhytidectomy using an arcade of horizontal mattress suspension sutures anchored to the DTF instead of the preauricular pre-parotid fascia, and evaluate outcomes with this modification at 1 year. This was a proof of concept prospective cohort study of 20 patients (40 sides) undergoing rhytidectomy by a single plastic surgeon (level of evidence 4). Intraoperative measurements were taken to determine the amount of auricular displacement with suspension sutures placed in the preauricular fascia compared with the DTF. To confirm longevity, we compared ear position preoperatively and at 1 year after rhytidectomy with our technique. There was significantly less auricular displacement when superficial musculoaponeurotic system (SMAS) suspension sutures were placed in the DTF 0.75 ± 0.69 mm compared with the preauricular fascia 9.71 ± 2.57 mm (p < 0.00001). With our technique at an average follow-up of 370.3 days, there was no significant change in auricular rotation compared with preoperative photos (p = 0.125).Our simple rhytidectomy modification allows for vertical resuspension of the SMAS in the anterior face in a safe manner while minimizing displacement of the auricle.

Stab access fascia suspension lift: A facelift technique without skin excision and visible scar.

BACKGROUND: Traditional middle and lower facelifts are not suitable for patients with mild skin laxity or who wish to avoid incision scars. OBJECTIVE: We present the stab access fascia suspension lift (SAFS-lift) technique, which does not require regular skin incisions, as a reliable surgical facelift strategy for the lower and middle face. METHODS: From September 2020 to September 2021, 38 patients underwent SAFS-lift. SAFS-lift involved (1) incomplete subcutaneous undermining with hydrodissection-assisted tunneling; (2) complete subcutaneous undermining with a dissecting cannula in the zygomatic buccal groove area and hollow below zygomatic arch; and (3) maximal firm superficial musculoaponeurotic system suspension with polydioxanone barbed threads in loops. All patients evaluated the outcome according to the Global Aesthetic Improvement Scale. Four plastic surgeons evaluated postsurgery result with a five-point Likert scale (5 = excellent, 4 = good, 3 = fair, 2 = no change, and 1 = worse). RESULTS: Thirty-six patients were successfully enrolled. The mean follow-up period was 14.72 ± 3.89 months. No patients showed visible scarring 6 months after surgery. The minor complication rate was 19.4%. They all subsided within 1-6 weeks without treatment. No infection, hematoma, seroma, or facial nerve injury was observed. Patients' outcome ratings were 4.22 ± 0.58 (3 months), 4.69 ± 0.46 (6 months), and 4.69 ± 0.54 (1 year). Surgeons' outcome scoring was 3.98 ± 0.95. CONCLUSIONS: Stab access fascia suspension-lift is a predictable, effective, and safe facelift technique that can be performed without making noticeable incisions and resecting the skin.

The Underappreciated Role of the Platysma Muscle in the Perioral Expressions in Young Adults.

BACKGROUND: The platysma is involved in lower face movement, yet limited information on its functional role when making perioral expressions is available. OBJECTIVES: The aim of this study was to use 3-dimensional (3D) photogrammetry to analyze platysma activity when making expressions. METHODS: Standardized frontal-view 3D images were obtained from 54 volunteers. Three perioral expressions were analyzed: a full smile, mouth corner depression, and a grimace to show the lower teeth. Positive volume change in the "heat map" of the neck skin surface-determined by the superimposed image subtraction technique-served as a sensitive indicator of platysma contraction. RESULTS: When making the 3 expressions, the proportions of platysma contraction were 42.6%, 75.9%, and 92.6%, respectively. The platysma worked as a more critical dynamic force than expected. In most smiles involving the platysma, its upper portion contracted. With the laterally downward traction on the lower lip increasing, the upper and lower portions of the platysma contracted together and formed muscular bands. The platysma contracted extensively in the other 2 expressions. In some cases, platysma bands were observed to form due to vigorous contraction of muscle fibers. In addition, the platysma was found to be highly functionally active in young individuals. CONCLUSIONS: This study introduced a simple method that can sensitively identify the functional status of the platysma. The results showed the platysma's highly active function in perioral expressions in young adults. These findings may assist surgeons in personalized decision-making toward platysma muscle-weakening strategies and work as an objective tool for outcome evaluation.