Acne scarring has significant debilitating effects on one’s overall self-worth and confidence. Millions in the US are affected. There have been improvements in techniques and energy devices in past few years which have led to better outcomes for acne scar treatments.
Subcision – This is process of breaking up deeply tethered scar bands associated mainly with atrophic/rolling scars. Subcision has be performed for acne scars for decades and just using this procedure alone has proven to lead to significant acne scar improvements. Recently there have been a couple publications suggesting that cannula subcision had better outcomes, less downtime, and less discomfort than the traditional method of using a Nokor needle. A cannula has a blunt tip so it is also safer – less chance for cutting a nerve or blood vessel than the knife-like edge of the Nokor needle. In the study, both patients and the performing doctor rated the results better when using the cannula. Subcision is particularly important, in Dr. Weiner’s opinion, to be performed prior to any energy device for tethered scars. This is based on the fact that RF and laser will preferentially travel through collagen – which is high is water content – than fat or most other tissue. Scars are predominantly collagen, so it makes sense to cut the connection of the scar to the deeper tissue. Through personal communication with Dr. Davin Lim, biopsies he performed have shown scar band that reach the deeper fat pads from tethered acne scars. Transmission of the energy through the scar can theoretical lead to collagen contraction and deepening of the tethered scar. Sometimes fillers are placed at the time of the subcision to improve the volume loss associated with the scarring. Some hypothesize that putting a “spacer of filler” might improve results as well. Dilute lidocaine during the initial passes allows for this procedure to be well tolerated.
TCA CROSS – TCA (Trichloroacetic Acid) is a chemical peel used to improved acne scarring by placing minute quantities in the scar using a toothpick. CROSS stands for Chemical Reconstruction of Skin Scars. The most common use of this procedure is for ice pick and small boxcar scars. The process of causing a controlled chemical burn, allows for the body to heal from the deepest part of the scar towards the skin surface. This makes the scar smaller in diameter and shallower. Usually a series of 3-6 treatments are needed, with 3-4 weeks between treatments. There will be some mild scabbing for a few days which needs to be kept moistened for best results. Risk include widening of the scar or post inflammatory hyperpigmentation (PIH).
Radiofrequency Microneedling – This technology (RFM) has been available in the US for about 6 years and has revolutionized acne scar treatment. Using needles which are insulated, energy is delivered into the scar tissue directly and bypassing the epidermis, for the most part. The insulation protects the skin surface from heating so darker skin type individuals are at much less risk of PIH (post inflammatory hyperpigmentation) vs a laser treatment. The needles allow for deeper penetration than lasers as well. Overall, downtime is less than ablative lasers in most individuals (when insulated needles, proper technique, and appropriate settings are used). With acne scarring affecting darker skin types disproportionately, this is an excellent alternative to lasers. The Genius has recently been FDA approved and is now the “best of bread” RF microneedling device. There is now impedance feedback from the needles which allows for improved and exact energy delivery. The resistance in the tissues being treated is measured and this is important because throughout one’s face, there are differences, as well as between different individuals. Also, as tissue are heated or subcised, the resistance changes. Prior to Genius, there was no idea of how much energy was being delivered. There is now an accurate total energy for each pulse and a cumulative total. Other improvements include needle design-sharper, stronger motor, and feedback regarding quality of each pulse fired.
There is a myth that needs to be busted. Deeper does not mean better for acne scars.
The needles must stay within the scar for best results. If the needles go beneath the dermis, there is a risk for heating the fat and fat loss. Let it be known that the actual depth of the needles in most RFM devices is less than the settings, and becomes less accurate, the deeper the settings are. There is inherent resistance of the skin to penetration and many needles aren’t sharp enough or motors aren’t strong enough to get to the desired levels in the time required. This has also been addressed with the Genius and it’s depths are very accurate after extensive testing.
In addition, higher energy levels on any device which doesn’t monitor impedance, can actually result in very little energy delivered. Once the tissue is heating beyond a critical level, the resistance becomes so high that energy output cuts off. However, when higher energy levels are desired when using the Genius, the energy is adjusted to the increasing impedance and it is successfully delivered.
Fillers – Fillers are a very integral part of improving acne scars. They are extremely useful for the atrophic scars and the lipoatrophy associated with these scars. The aging process leads to dermal thinning and fat atrophy, which makes the acne scars appear worse, even if active acne has long been controlled. Fillers need to be injected deeply for correcting large areas of volume loss and superficially in minute quantities for focal defects. A hyaluronic acid filler will give about 12 months of improvement vs Bellafill which can give near permanent improvements. Bellafill does require a skin test to see if one has a allergy to the bovine collagen (0.5% chance) which needs 3-4 weeks to determine. There is some who feel fillers in areas of subcision will prevent re-adhesion of the scars. Most failures from other treatments are related to not recognizing the need to fillers to improve the acne scars.
Lasers – Erbium/CO2 ablative lasers still are beneficial for acne scars but have more downtime and risks vs RFM. Deeper skin imperfections are not improved with lasers and require fillers. These devices are best reserved for more superficial scars, mainly boxcar scars. Non ablative lasers are less affective but safer and in the author’s opinion give very minor results.
Microneedling – Also know as “Collagen Induction Therapy” CIT, has become popular in recent years. There are rollers available for home use and then there are medical grade devices which go to depths of 2mm or deeper and create thousands of penetrations per second. Rollers should be not be used at home for 2 reasons – questionable sterility at home and they tear tissue more than the in-office devices. Often these treatments are combined with topicals and PRP. It is highly recommended to not use any products on the skin which would normal not be injected. There have been many cases of infection and granulomas from these practices. Even when done in the office with PRP or amniotic membrane products, the efficacy of this procedure is minimal, and should be reserved for only mild acne scarring.
PRP/Amniotic membrane products – There is some date to support that better results and faster recovery with less side effects if PRP or amniotic membrane products are used during acne scar treatments. There is a movement more towards amniotic/placental products and away from PRP because there are more growth factors/healing properties in these vs PRP.
LLLT – There is a plethora of studies to suggest that using low level laser light (LLLT) is beneficial to results and healing times. The most researched device is Healite, and this should be performed immediately following all acne scar procedures which use energy devices. It calms the skin and improves circulation.
Acne scarring procedures are continuing to improve as technology and techniques evolve. One must understand that results require months to fully appreciate and multiple treatments (3-5 or more) are often needed to optimize results. Expectations need to discussed with providers/patients so that all are on the same page as to what one can achieve with treatments.
Dr. Weiner is an Acne Scar Center of Excellence designated by Bellafill and is a specialist on acne scars. He is a lecturer and trainer for Bellafill. He has become one of the leading authorities on Radiofrequency Microneedling and travels the globe lecturing on this technology. He performed the FDA trails for the Genius. He recently authored a chapter on RF Microneedling which soon will be published in the Facial Plastic Clinics of North America. He also wrote a recent chapter on Radiofrequency Safety and Complications which will be part of a book titled “Complications in Minimally Invasive Facial Rejuvenation: Avoidance and Management” by Paul Carniol, MD
It appears that 2019 is the “Year of the Jawline”. A strong jawline is interpreted as a characteristic of strength, beauty, virility, and power. In a study of S&P 500 CEO’s, 95% were considered to have a well defined jawline. With advances in aesthetic technology and techniques, achieving that perfect profile is becoming easier, with less downtime, costs, and risks. Here are the top 5 procedures to improve your jawline:
5) Neck Lift/Lower Face Lift: With incisions placed behind the ears, this surgery can be performed with just local anesthetic. Downtime is about a week or 2. For severe jowling and platysma bands, this will give the best results.
4) Ablative Laser (Erbium/CO2) or Renuvion(J Plasma): These procedures have significant wound care for a week or more. The skin is stimulated by the heat of the laser/plasma to contract and create collagen. Healing time can take weeks and redness can persist for months. Risks include infection, scarring, hyper and hypopigmentation. Procedure is limited to the face, and can’t achieve fat reduction.
3) FaceTite: A minimally invasive procedure whereby radiofrequency is placed below and on the skin surface. Requires tumescent anesthesia only for most patients. Procedure takes about an hour, more if liposuction is added. There is minimal bruising and swelling afterwards but requires a compression chin strap for a few weeks (constant for the first 48-72 hours). The RF energy causes deep collagen stimulation and contraction as well as dermal collagen remodeling. Jowls and submental fat can be attended to with RF and liposuction.
2) Genius/Infini: Radiofrequency is placed into the dermis (and subdermis for jowls/submental) using insulated microneedles. The downtime is 2-3 days but it requires 3 treatments. The procedure takes about 30-45 minutes. Most patients require just topical anesthetic with about 5-10% opting for Pronox (Nitrous Oxide – laughing gas). Results take 3 weeks to start to become apparent and 3 months for their full effect. It is the least downtime, least invasive of the top 5 procedures, outside of #1.
1) “reJAWvenation(TM)”: Using microcannulas, filler is placed along and below the jawline to enhance and restore the profile. Typical procedure time is 10 minutes or less and there is no downtime. The amount of syringes required varies, but can be anywhere from 1-6. Multiple sessions are required for the patients with severe jowling. While there is no actual removal of fat from the jowls or submental area, these areas appear improved due to the lifting by the filler as well as camouflaging the trouble areas.
It is left up to the individual as to what procedure is right for them. Lifestyle, degree of correction desired/needed, and finances all factor into one’s decision making. Dr. Weiner is world renown for his “reJAWvenation(TM)” procedure and is known as the reJAWvenator.
(Threads are notably absent because the author believes the expense, duration, and results, don’t warrant them to be a consideration for jawline improvement.)
The initial studies of radiofrequency microneedling (RFM) were performed by Hantash et al. in 2009. What Hantash was able to demonstrate was that RFM produced a fractionated radiofrequency thermal zone (RTZ) with coagulated tissue surrounded by normal tissue. Overtime, multiple growth factors and inflammatory components led to complete replacement of the RTZ with neocollagenesis and neoelastogenesis over the following 10 weeks.
Delivery of the RFM energy varies according to the device used. Unfortunately, there has been a paucity of solid research behind the majority of the devices. There is confusion in the marketplace for both consumers and providers as to what constitutes the best delivery system for outcomes, safety, and comfort. Lutronic decided to breakdown all the components of RFM energy delivery and optimize them in their development of the Genius.
One of the selling points of many of the devices has been that they are comfortable and have minimal downtime. What this actually means is that there is minimal energy delivered to the dermis. Discomfort is directly related to the amount of energy delivered. Lutronic’s research has shown that needle depths and energy settings don’t necessarily correlate to the what really occurs in the tissues.
Skin intrinsically resists puncture by outside forces. If is especially difficult for 49 needles to penetrate the skin in a small area (1x1cm2). The natural tendency is for the skin to buckle with the needles “bouncing off the surface” and several of the RFM devices tested have been documented to exhibit this phenomenon. Furthermore, needles have a harder time penetrating deeper into tissue than superficially, so deeper depths are even more challenging to accurately place than more shallow treatments. Unfortunately, setting needle depth on the device doesn’t always correlate to actual tissue depth. Requirements for accurate depths include:
- Sharp needles – but not too thin as to bend or dull during hundreds of pulses
- Powerful motor – underpowered motors prevent accurate penetration
- Quick motor – slower motors will lead to pushing the skin rather than penetrate it
One of the fallacies of RFM devices is that higher treatment levels correspond to higher energy delivery. Best results will be related to turning the energy settings “all the way up” is ABSOLUTELY FALSE. Too much energy in too short a period will lead to rapid rises in tissue impedance (resistance) and cut off energy flow immediately. Performance by the operator can affect the energy delivered if handpiece pressure is light or not flush with the skin as well.
Impedance in the dermis is highly variable between patients and even within different areas of the face and body. Variables affecting impedance are: hydration, solar damage, collagen and hyaluronic acid content, and scarring. Using settings based on clinical findings and desired outcomes is not enough precision for optimal energy delivery.
Coated vs Uncoated Needles
Coated (insulated) needles allow the microneedles to penetrate the skin and deliver energy to the dermis while bypassing the heating of the epidermis. Some devices will use uncoated needles which will increase the risk of post inflammatory hyperpigmentation (PIH), particularly in darker skin types. To minimize this risk, uncoated needles use low energies and therefore sacrifice results. There will also be more downtime/wound care with uncoated needles because the skin surface will be more affected than with the coated needles.
The Genius Advantage
- Proprietary needle design – sharp and coated for minimal resistance to insertion
- Improved motor insertion – high torque and quick needle insertion
- Improved protocols – changes to energy and pulse durations to avoid sharp rises in impedance based on Lutronic proprietary research
- Impedance Feedback – the needles monitor tissue impedance every 2 msec and give feedback to the device to optimize energy delivery and adjust flow as resistance changes. This is the “brains” of the Genius.
- Energy delivered feedback – each pulse is monitored and amount of energy delivered is noted. If energy is not exactly as desired/set, both a visual and audible signal is sent to operator. Adjustments in settings or technique can be made to improve energy output.
- Total Treatment Energy – a running total of energy given is kept. This allows the provider to base treatments on energy delivered. Cumulative energies delivered from multiple treatments will become the standard of care to achieve clinical outcomes for a given diagnosis.
With the advancements made with the Genius, suddenly, all other RFM devices are now obsolete. Genius delivers a precise, safe, and efficacious treatment for laxity, wrinkles, neck lines, acne scarring, and hyperhidrosis in all skin types.
Removing hair using a laser dates back to 1995, when the first laser was FDA approved for this purpose. The LightSheer laser (Diode) was approved in 1997 and has been the most popular laser for hair removal since then. About 6-7 years ago, the LightSheer Duet was developed for faster and safer treatments and was the laser used by the author for the past 6 years. The Alexandrite (855nm) wavelength has been consider possibly a more effective laser for hair removal, but it’s limitations have been pain and speed. In addition, both the Diode and Alexandrite laser aren’t considered safe for the dark skin tones where a 1064 (Nd:YAG) laser is needed. The Splendor X has solved all these problems and is now the most innovative laser for hair removal on the market.
The concept of laser hair removal was invented by Dr. Rox Anderson from the Wellman Institute at Harvard’s Mass General. To permanently remove hair, the hair germinal cells must be killed. This is done by using a laser whose wavelength matches the pigment of the hair. The heat absorbed by the pigment travels to the germinal cells and permanently injures them. In the growth phase of a hair cycle (one of 3 phases of the life of a hair), the hair is attached to the germ cells so the heat is effectively transferred to them. In the other 2 phases of the hair cycle, the heat will not lead to killing the germ cell. This is why several treatments are needed, so as to eventually hit most of the hairs in the growth phase. One should expect about 75-85% hair reduction after 6 treatments, and the need for touch ups, 1-2 times per year.
What makes Splendor X different?
Dual (Blended) Wavelengths: Spendor X has both the Alexandrite 855nm and the Nd:YAG 1064 wavelengths. It can safely treat all skin types. For the lighter skin, mostly the 855nm is used. For darker skin, the laser uses a blend of the 2 wavelengths while in type 6’s, only the 1064 is used. While some companies had 2 wavelengths on their device, it is either one or the other, and not a synchronized output. The benefit of the 1064 laser for lighter skin types is that it penetrates deeper than the 755 laser and can attack deeper hair follicles as well as the vasculature feeding these follicles.
Square Footprint: The pulse from the laser is uniquely square. This overcomes the uneven treatments which are inherent in the typical circularly outputs. With the circular footprints there will be potential for skipped areas and/or over-treated areas from overlapping pulses. The Splendor X has a glow-in-the-dark marking system to guide the operator to place pulses abutting each other with minimal overlap.
Double Cooling System: The Splendor X uses both integrated Zimmer Air Chilling as well as a chilled tip to doubly ensure a safe treatment. By chilling the skin surface, the laser will preferentially heat into the deeper dermis where the hair follicles are and is less likely to be attracted to skin pigment (less burn or PIH risk).
Highest Speed: Improvements in speed was one of the major attributes to the LightSheer Duet. It could do a man’s back in about 15 minutes, down from the 45-60 minutes it took previously. With the Splendor X, we can now do the back in about 6 minutes with the same or more safety.
High Power: There is higher power than most lasers with the Splendor X – 75% more – 7 Kw vs 4 Kw. Higher power equates to more efficient treatments, more results, less sessions needed.
Plume evacuation: There is a built in suction to remove the plume of the the vaporized hair. Besides removal the smell, this is important as we learn there are possible negative side effects from the plume.
There has been a lack of innovation in the laser hair removal arena for years. Now the Splendor X leaps to the front of the line with its innovative blended wavelengths, square footprint, and lightening speed. Patients can be confident they are receiving a highly effective, comfortable, and quick hair removal treatment.
Acne scarring is a significant psychologically debilitating disease affecting millions in the US, approximately 1% of the adult population in one study. Treatments for acne scars include:
- RF Microneedling
- TCA Cross
- PRP (Platelet Rich Plasma)
- PDO Threads (?)
Most of these techniques are based on trying to make the disorganized collagen in the scar to be more organized and natural. Using carefully induced tissue trauma with heat or microneedles (mechanical), the body initiates a healing process to smooth the scars.
Acne scars will often affect tissues deeper than the dermis. Fibrosis/scarring can affect the subcutaneous tissues and fat and lead to tethering of scar to the deeper structures. Lipoatrophy (fat loss) can occur as the result of the inflammatory mediators released from the acneic process. When heating from lasers and RF is applied, it is preferentially conducted through the collagen because the water content of collagen is high. Heating collagen will lead to collagen remodeling but also collagen contraction. If the collagenous attachments to the deeper tissue are not cut (subcised), there is actually potential for worsening the appearance of the scars with these heating devices.
A recent paper suggested that using a cannula to subcise acne scars is better tolerated, with less adverse events, and judged to have better results by the patients. This is Dr. Weiner’s (and acne scar expert Dr. Davin Lim’s per personal communication) preferred method of subcision vs using a Nokor needle. By subcising, the energy flow to the deeper structures is severed and harm to fat is less as is the risk of pulling some scars deeper. Placement of filler (Restylane Defyne, Bellafill) is often done simultaneously with the subcision to help elevate the scars and prevent reattachment of the scars.
Subcision has been around for decades for acne scar treatment. It is now even more important when energy devices are used to maximize the benefits of these treatments. The use of cannulas for this procedure leads to more comfort, less risks, and better satisfaction.
The Aesthetic Clinique has been designated an Acne Scar Center of Excellence by Suneva (Bellafill) and is considered an acne scar expert.
**(Subcision is also useful for treating cellulite as there are fibrous attachments from the skin which cause the dimpling.)
People chew gum to help clean their teeth after eating, freshen their breath, and even try to keep them whiter. What isn’t readily known is the havok gum chewing has on the aesthetics of the lower face.
The simple act of excessive chewing will lead to muscle hypertrophy of the masseter. Enlargement of this muscles leads to squaring of the lower face and jawline, an undesirable shape in females. The aesthetically pleasing lower face is V-shaped or Heart-shaped. Widening of the lower face is particularly prevalent in the Asian population where the women go to great lengths to slim their face with cosmetic procedures, including surgery. Gum chewing leads to similar problems which fortunately can be reversed with weakening of the masseter muscles with Botox/Dysport.
A much more problematic issue to fix is the negative side effects which occurs around the mouth secondarily to gum chewing. The movements of the soft tissue and perioral muscles is significantly more when chewing than in a relaxed state. Just as with the frown lines and crows feet, the more movement in these areas, the more wrinkles and etched in lines are created. (Ever notice Kim Kardashian doesn’t smile in pictures? It’s because she’s afraid of creating wrinkles, so she limits her facial movements.) In essence, gum chewing accelerates the aging process around the mouth and lower face. Unfortunately, Botox/Dypsort aren’t as easy a remedy for this area because restricting muscle activity can lead to eating and vocalization difficulties. However, lasers, radiofrequency, microneedling, and judicious use of Botox/Dysport can improve the perioral aging process.
Straws can also lead to upper lip lines due to excessive muscle use of the lip muscles (orbicularis oris). The recommendations to improve lower face and mouth asethetics: stop gum chewing and straw use and consider breath mints as a substitute.
It’s been the dream of generations. Hundreds of machines have failed. Now there is Emsculpt. It is now possible to strengthen your abdominal muscle muscles effortlessly and pain free. How about lifting and shaping the buttocks without squats? In fact, you can drink wine, eat a donut, or watch a movie while this is happening – NO JOKE!
The science behind the device is fairly simple to understand. The Emsculpt uses electromagnetic waves to stimulate the underlying muscle. Think of the TENS unit that is used to improve aches and pains, ON STEROIDS. The contractions are “supramaximal”, meaning more intense than a person can do on their own. During a 30 minute session, the abs/buttocks contract equivalent to a workout of 20,000 crunches/squats. The usual protocol is to have a total of 4 sessions in 2 weeks. Expect some muscle soreness the next day or 2 but there is essentially no downtime. Better yet, there is really no risks either. There are 2 handpieces for each machine. This means that 2 patients can be treated simultaneously on the abdominal area or one patient on the buttocks area.
There were 7 different sites that studied the Emsculpt. Before and after CT scans, MRIs, and Ultrasounds were taken in the study group. Results showed muscle mass increased 16% consistently. What is even more interesting is that the average fat loss was 19% and waist measurements decreased by 4 cm.
Another treatment area is the gluteal area. Using 2 handpieces simultaneously, the buttocks is treated. The settings are adjusted so as to not cause any fat destruction but just muscle hypertrophy. Other areas being treated experimentally by some physicians are the thighs and calves. The pectoralis muscles definitely can’t be treated because they are too close to the heart and the strong electromagnetic waves might stimulate the heart.
There have been anecdotal reports of enhanced athletic performance after Emsculpt treatments. Is this a new legal way to get an edge on the competition?
Contraindications are people who have pacemakers, metal IUDs, metal implants or surgical clips (close to the treated area).
Bottomline, six pack abs and brazilian butt lifts can now be obtained using the noninvasive, risk free, no downtime, Emsculpt.
Call The Aesthetic Clinique for more details, the Emsculpt headquarters of the US.
Dermal fillers improve volume loss or enhance facial features. Their use is increasing at rate of 10% or more per year worldwide. Adverse events are usually minor and consist of bruising, swelling, asymmetries, and nodularity. More significant complications are fortunately rare and include infection, granuloma, skin necrosis, and blindness. This blog will concentrate on techniques to minimize the risks of having a vascular event.
There are 2 ways a blood vessel can become occluded. If an artery is entered and filler is injected within the lumen (Intraluminal), filler will travel down the vessel until it gets lodged. At this point, the filler stops the flow of blood to areas which are dependant on this blood supply. Smaller pieces of the filler can break off and flow into areas far from the initial injection and into the very small arterioles. There are theories that an inflammatory response/cascade exacerbates the injury to the skin and dependent structures. This is Dr. Weiner’s opinion for the etiology of the majority of vascular occlusion cases.
A second way a vessel can occlude is if there is external compression of the vessel by filler. This is plausible in areas of compartmentalization, such as in the nasal tip. If the pressure within the nasal tip exceeds the pressure within an artery, flow will stop. Unfortunately in this area, vascularity is so poor that peripheral flow doesn’t occur. External compression is not a major problem in most areas of the face in Dr. Weiner’s opinion. Most vessels can be ligated during surgery and there is no resultant skin necrosis – proving that peripheral flow can make up for an externally compressed vessel.
The worst cases of vascular occlusion result in blindness. This is the result of a filler embolus that travels through an anastomosis between the external and internal carotid systems. The filler backs up into the central retinal artery which feeds the retina. Blood flow is blocked to the retina and blindness ensues.
In most cases, early recognition of a vascular event can be reversed with hyaluronidase if a hyaluronic acid filler was used. Minimal or no sequelae are seen if action is taken within the first 4-6 hours. Unfortunately, even immediate action for blindness related to a filler complication, has little or no success.
There have been about 100 reported cases of blindness from fillers, with most of the cases coming out of Asia. This is certainly underreported though. The areas of most risk for blindness are injections in: glabella, nose, periocular, and NLF. Fat is the most common filler causing blindness, but all fillers have been implicated. Any area of face is at risk for vascular occlusion/necrosis.
The key to avoiding vascular complications from fillers is implementing safe techniques and knowledge of the vascular anatomy. While there is a paucity of data to support this, Dr. Weiner believes that cannula injections are less risky than needles for a vascular event. Larger cannulas, 25g or larger, are less likely to enter a vessel than a needle. While there have been cases of vascular occlusion with cannulas, to the author’s knowledge, none have been reported with 23g or larger. The smaller the cannula, the closer it becomes to looking like a needle, and therefore the advantages are less. (Please read Dr. Weiner’s blog about cannulas to understand their advantages.)
Techniques for optimizing safety during dermal filler administration:
- Know the major vascular structures and their landmarks
- Avoid areas you (the injector) are not comfortable with. Particularly the high risk areas: glabella, nose, periocular
- Consider using only reversible fillers if there is any concern regarding vascular occlusion or experience
- Use cannulas whenever feasible, preferably 25/23g or larger
- Avoid boluses, small linear threads are safer
- Constantly move tip of cannula/needle. If more filler is needed in a particular area, revisit the area with another pass.
- A NEGATIVE ASPIRATION DOESN’T EQUATE TO BEING EXTRAVASCULAR AND CAN GIVE A FALSE SENSE OF SAFETY
- Injection onto periosteum is safest but does not guarantee a vascular free injection
- Pressure on the supratrochlear vessels during glabellar or nasal injections might limit reflux of filler into the orbital vessels
- Retrograde injections are safer than anterograde injections
- Dermal injections should be relatively safe
- Avoid deep injections in the lips. Stay superficial to the muscles
- An injection that is perpendicular to a vessel is purported to be safer than one which is parallel because the time within the vessel should be less if it is entered
- Have on hand 6-8 vials of Hylenex
- Any unusual bruising, pain or visual change needs immediate evaluation
The bottom line is that complications can occur with dermal fillers, even during a routine procedure. Many measures can be taken to minimize the risks. Choosing an experienced injector will result in safer and better outcomes.
Dr. Steven F. Weiner is the #1 physician trainer for Galderma (Restylane, Silk, Lyft, Sculptra, Defyne, Refyne). He has been using cannulas since 2011 and is one of the most experience injectors in the US.
Nefertiti was recognized for her crisp jawline and smooth neck. Her bust is one of the most famous of the ancient Egyptian sculptures. A razor sharp jawline and well defined ascending ramus (or gonial angle) are hallmarks of beauty, both male and female. Jowling, submental fullness, blunting of the gonial angle, and an irregular jawline are all signs of aging.
While there are many commonalities between the sexes of what constitutes an attractive jawline, there are fundamental differences as well.
- Broad/wide rami of mandible leading to a near vertical appearance on frontal projection
- Approximately a 110-115 degree gonial angle (more acute than female)
- Significant height of the body of the mandible
- Wide defined, projected chin
- V-shaped rami of mandible on frontal projection. A more masculine (vertical) ramus is also considered beautiful in some women (Such as Alessandra Ambrosio)
- A more obtuse gonial angle of approximately 135 degrees
- Shorter height along the body of the mandible
- Pointed, less projected chin
There are considerable age related changes of the mandible.
- Loss of bone along the body of mandible leading to loss of vertical height. This change is accelerated in an edentulous patient
- Blunting of the gonial angle eventually leading to a curvilinear jawline
- Narrowing of the male chin and widening of the female chin
- Deepening of the gonial notch
The age related mandibular changes lead to loss of support of the soft tissue in the lower face – falling forward and downward. Jowling and submental fat is exaggerated. The upper neck skin shows more laxity as facial skin drops into the neck.
Correction of age related jawline changes with fillers- reJAWvenation
Dr. Weiner has perfected a correction using dermal fillers which he has coined “reJAWvenation”. It is based on restoring the age related loss of bone and leads to support of the lower face soft tissues. Filler is placed along the inferior border of the mandible as well as filling the gonial notch. The gonial angle is recreated. The lower aspect of the jowl is considered the new baseline and filling is made on either side to “camouflage” the jowl. Filler is also placed along the posterior aspect of the ascending ramus. The prejowl sulcus is filled, with emphasis to include the space beneath the inferior mandibular border. The chin must also be corrected to the male/female appropriate projection and shape.
reJAWvenation offers a quick (10-15 minute) correction of the age related changes to the jawline. Improvements in jowls, upper neck, jawline, and chin can be expected. There is minimal or no downtime. Even with facelifts, jawline volume is not typically addressed and needs to be corrected either during the procedure with fat grafting, or in the office, after healing, with fillers.
On October 12, 2017, Galderma was notified by the FDA that Restylane Silk was approved to be administered using blunt microcannulas. Galderma deserves a huge “high 5” for stepping out of the box in recognizing the improved patient outcomes and safety benefits of cannulas. No other dermal filler in the US has been approved for use with cannulas, it is a “First for Fillers”. Galderma is researching other areas for cannula use and expect approval in 2018 for another 1 or 2 indications.
What’s the big deal with cannulas?
The traditional method to administer dermal fillers is using a needle. Unfortunately, there are many side effects and risks using needles. These include:
- Bruising – sticking a needle into a highly vascular organ, skin, will lead to bruising a majority of the time. This is corroborated by the FDA studies for all the US approved fillers.
- Pain – needles require multiple entry points to deposit the filler. Pain fibers are most prevalent in the dermis.
- Vascular Occlusion Risk – when a blood vessel is cannulated with a needle and the filler is injected directly into the vessel, occlusion of the vessel occurs. The sequelae of such event can result in skin necrosis, eye injury, or even blindness.
Cannulas have a blunted, rounded tip which is less likely to injure blood vessels than a needle is. When the cannula brushes up against a vessel, it is deflected away, in distinction to a needle which will often pierce the vessel. When a vessel is traumatized, a bruise will occur.
To use cannulas, a small pilot hole using a needle is required. Unfortunately, completely eliminating needles is not possible. However, after that entry is performed, the cannula can be placed through the dermis and into the subcutaneous tissue or deeper fat compartments. The areas below the skin surface are generally less innervated and are more comfortable to place filler.
The most important quality of cannulas is their safety. By design, they are much less likely to result in placement of filler within the lumen of a blood vessel. The rounded tip eludes lumens of blood vessels whereas needles don’t offer that protection. Although vascular occlusion is possible with cannulas, it is much less likely when compared to the risks associated with needles.
Dr. Weiner has been an advocate of injecting dermal fillers with cannulas for the past 6 years, since 2012. He has become one of the most experienced cannula users in the US. He has been chosen by Galderma to use his cannula experience to “Train the Trainers” in the use of cannulas for Restylane Silk in the lips.