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Compared to a traditional needle, a cannula is longer and has a blunt tip rather than a pointy tip. A cannula is safe. cannula technique or conventional. As we all know, all fillers come with needles for injection of the material. Cannula for Dermal Fillers. 5. Needle Vs. Cannula A needle is sharp and can go through any tissue. At the source of the filler injection using Microcannula, your Doctor creates a minute entry point in your skin using a precise, sharp needle. However, they're a little harsh to the skin and risk bruising and swelling. A cannula is similar to a needle but the tip is not sharp, it is blunt and rounded. I will discuss where I feel the use of cannulas makes sense. Injection techniques, as well as filler material, cannulas, needles, injection systems, etc. There is less swelling and bruising due to the reduction in tissue subcision. have to be used in a patient specific manner. Once the needle is inserted, there is a chance that it will pierce the blood vessels . The dermal filler can be injected using different size needles or blunt cannulas. Introduction. Local analgesia was provided for both applications: topical analgesics 4% Lidocaine, for the application with the standard needle, and nerve block (Lidocaine 2%), where the application was performed with . Its difference from a needle is that a cannula has a blunt tip and is usually longer than a needle used for dermal filler injections. A clinical study compared the swelling, pain and bruising experienced with a sharp tipped needle and a blunt tipped micro-cannula for the injection of dermal filler. A clinical study compared the swelling, pain and bruising experienced with a sharp tipped needle and a blunt tipped micro-cannula for the injection of dermal filler. To change direction, pull the cannula out of the skin almost entirely, back to step two (leaving the tip at the desired depth). Traditionally, dermal fillers like Juvederm, Restylane and Radiesse have been injected using needles. What are the differences? Because cannulas are blunt and have a side injection port, the incidence of intravascular injection is substantially decreased. Cannulas (unlike needles) are round ended, long, flexible and tend to be more comfortable as less entry points are required. Because a cannula is so blunt, it needs a needle for its initial penetration into the skin. The use of needle over cannula is preferred, assuring a correct injection plane lying fully against the bone or cartilage, in combination with the detailed injection technique presented in this article, which ensures a safer and satisfying treatment outcome. Dr. Terrence Keaney 's tips for optimal outcomes: Inject on bone when possible (zygomatic arch, jawline, chin) TY - JOUR T1 - Precision in Dermal Filling: A Comparison Between Needle and Cannula When Using Soft Tissue Fillers. Lately, there has been discussion and debate about the use of cannulas vs. needles to inject these fillers into the face. The use of hyaluronic acid (HA) fillers has become a popular alternative for nose remodeling, although poor understanding of the nasal . Microcannulas, which are very small cannulas, are typically used for injections of dermal fillers in the face, including Juvederm, Restylane, Radiesse, Sculptra, Belotero Balance, and Voluma. When using a needle, the sharp tip of the needle penetrates through the skin and down to the depth where the filler is injected. When the cannula is used one entry site is usually sufficient to deliver the filler to many locations. Many doctors now prefer the method and are excited about the benefits of the cannula technique for patients seeking a non-invasive treatment with minimal downtime. Currently no filler comes equipped with Blunt-tip micro-cannula. A cannula is blunt and therefore has a more difficult time penetrating a blood vessel. Flexibility: The cannula is very flexible, as it offers freer movement and increased precision. While cannulas have blunt tips, needles have sharp ones. Among them, is the question of where and when to use cannulas vs needles. Cannula vs. Sharp Tipped Needles Unlike traditional needles used for injectable fillers, the cannula contains a blunt end that is rounded, as well as a longer and flexible body. When fillers are injected with a cannula, a single large puncture site is made with a large needle (as opposed to the very small needle used when fillers are injected directly). The insertion location is minimal and does not cause substantial pain or bleeding. Let's look at the pros and cons: Needles are undoubtedly more precise. Cannula Vs Needle when injecting dermal filler. Key Points. Needles are the old way for filler treatment. And since their tips are sharp, they have a high level of preciseness. These sites or 'holes' allow for the blunt needle to place filler deeper under the muscle and onto the bone (depending on the desired technique). The microcannula only makes one single hole, rather than a bunch of tiny ones around the eyes. There are several key differences between a needle and cannula for dermal filler treatments. The needle is rigid and thereby requiring more entry points. Fillers are classified by the FDA as a medical device. The risk of occlusion with any particular filler type using needle or cannula never exceeded 1 per 5000 syringes injected. Fillers have different properties, and are carefully selected to match the area of the face we are treating. The dermal filler, like the classic needle, travels through the cannula's more flexible shaft, but instead of delivering the filler through the cannula's tip, is dispensed just under the blunt end around the sides of the cannula in a spray-like fashion. We'll go into more detail, but generally, a cannula is a blunt, round-tipped tool that has become an alternative to needles in dermal filler treatments. Less needle sticks are more comfortable. Dermal fillers are made of synthetic hyaluronic acid, which is also found naturally in the body. There have been many reported incidents of complications (skin necrosis or vascular . The needle punctures the skin and as many tissue planes of the face as required to get to exactly where you want the filler to be laid. Needles correspond to the filler viscosity and the size differs depending on the material used. Among them, is the question of where and when to use cannulas vs needles. The cannula is then inserted into the puncture hole created by the needle and is slid along the tissue planes to the delivery area. Cannulas may require less entry points because they tend to be longer than needles 4. A cannula is a thin tube that resembles a needle that can be used to insert or remove fluids. Martie Gidon, MD, FRCPC, FAAD Recommended reading Everything you need to know about Cheek Fillers 86% worth it 95.0k reviews A needle is more precise than a cannula and therefore great for . In contrast to this, a cannula has a blunt tip, and therefore cannot pierce the skin. Often a combination of cannulas and needles is used to achieve the best result. Clinicians may consider filler delivery by sharp needle as being more precise, but in an observational cadaver study of cannula vs. sharp needle for placement of tissue fillers, investigators found an increased risk for spread of filler to more superficial layers along the needle trajectory, as well as a higher risk of intra-arterial injection. When performing dermal filler injections with a cannula, the injection site is typically numbed, and a sharp pilot needle is used to pierce the skin. Through one entry point on each side of the lips, you can have both upper and lower lips filled with little to no bruising. AU - Pavicic,Tatjana, AU - Frank,Konstantin, AU - Erlbacher,Katharina, AU - Neuner,Romy, AU - Targosinski,Stefan, AU - Schenck,Thilo, AU - Gotkin,Robert H, AU - Cotofana,Sebastian, PY - 2017/9/16/entrez PY - 2017/9/16/pubmed PY - 2018/2/2/medline SP - 866 EP - 872 JF - Journal of . Because a needle cannot discern what it is going through, it can pierce through anything in the skin including blood vessels which accounts for excessive post-procedure . Benefits of a needle …. It is a relatively new form of treatment that surgeons have been using over the past decade that has been widely accepted compared to needles. So why is it most preferred? Cannula is a blunt tip tool which looks similar to a needle. Cannula Medicine & Life Sciences 100% With the needle, this is less so, and more entry sticks are needed, which is more traumatic While the needle and cannula can both be used to deliver filler, patients should know the differences so they can be involved in their treatment plan. A microcannula is a similar to a needle in dimension, but the tip is blunt rather than sharp and the hole for delivery of filler comes from the side of the cannula just below the blunt tip. Features - Needle vs. Cannula. Probably the most obvious difference between a needle and a cannula is that the tip of a needle is sharp while a cannula is blunt. Through multiple cadaver dissections, clinical experience and the . A cannula is safe. The use of a cannula is very important for the sensitive points of the filler injection, because if we use a needle in a nasal . Learning to inject with a needle is the foundation building block to aesthetic . Given all that, it is much easier and safer to put filler through larger areas of the skin without creating multiple needle sticks for multiple separate entry points. In this technique, a needle is used to make a hole in the skin, and the cannula is inserted through the hole and threaded under the skin to the distribute . Fillers are used to decrease the appearance of wrinkles, restore natural fullness to the skin, and help contour areas such as the cheekbones. Findings In this cohort study of 370 participating dermatologists, the risk of vascular occlusion appears exceedingly low (1 in 6410 syringes via needle and 1 in 40 882 via microcannula injector) when board-certified dermatologists inject skin fillers with needles or cannulas. This also allows the cannula to deliver the filler to various areas via one single entry . Of the 370 participants, 106 (28.6%) reported at least 1 occlusion. The use of hyaluronic acid (HA) fillers has become a popular alternative for nose remodeling, although poor understanding of the nasal anatomy has resulted in adverse events and generated some controversy. needles, especially when done by. Answer: Cannulas for fillers The use of blunt cannulas involves fewer injection sites with less chance of bruising and more patient comfort. Cannula for Fillers vs. One of the primary side effects from administering dermal fillers with a needle is the post-treatment bruising and swelling that can occur, as there is a chance that the needle will pierce blood vessels beneath the skin which will result in bruising. There is less swelling and bruising due to the reduction in tissue subcision. tip: You can fan the area 360 degrees around the hole. 2. Patients may be worried about a lack of precision with the method, not to mention a chance for increased swelling and bruising possible with a larger tool delivering the filler injections. A needle has a sharp tip, is shorter, and remains in a fairly static position. The conclusions from this simple study are insightful and . Needles vs. cannulas for dermal fillers: how are they different? Cannula vs. Needle - Tip Rates of Vascular Occlusion Associated With Using Needles vs Cannulas for Filler Injection. The rounded or blunt tip minimizes bruising and swelling and is safer. The question whether a cannula or a needle should be chosen for filler injections does not have a straightforward answer. Posted on: Oct 8 2019 ; By: Kate McLeod; Dermal fillers are a popular medical aesthetic treatment used to restore volume loss in the face that is secondary to the aging process. The needle versus cannula debate is frequently discussed in aesthetic medicine, particularly in regards to safety. Cannulas offer advantages for the patient and the practitioner. Through multiple cadaver dissections, clinical experience and the review of medical literature the authors conclude the use of needle over cannula is preferred, assuring a correct injection plane lying fully against the bone or cartilage. Question When injecting fillers, what is the risk of vascular occlusion with needles vs cannulas?. Cannula's can't penetrate the skin like a needle and are unable to penetrate a vein or artery very easily. This assumption still . Inject filler in a retrograde fashion. In absolute terms, that means that from 1.7 million mls of filler, there were 103 VOs with a needle and 9 with a cannula included in the study. Cannula or Needle for Dermal Filler Injection The physical properties of the cannula and the needle offer different advantages and disadvantages when performing dermal filler injections. needles are sharper than cannulae - much sharper - hence they increase the risk of penetrating a vein/going too deep during cosmetic injections (known as intravascular injection risks and these can lead to blindness and/or fatality) bruising may be more pronounced after dermal fillers when needles are used vs cannulae What is a cannula for fillers? Overall, 1 occlusion per 6410 per 1-mL syringe injections was observed with needles and 1 per 40 882 with cannulas (P < .001). Many fillers are made of materials that are naturally found in the human body, such as hyaluronic acid or calcium hydroxyapatite. When injecting with a cannula - because the tip is blunt - a small opening in the skin must be created prior to insertion of the cannula. The cannula eye lift has a few benefits: 1. Dive into the research topics of 'Rates of Vascular Occlusion Associated with Using Needles vs Cannulas for Filler Injection'. The videos out there certainly show a . One can observe a paradigm shift in filler therapies over . It is used to inject fillers to fill wrinkles and folds in the skin. Start injecting while pulling the length of the microcannula in and out of the skin. It depends on the type of treatment, the aesthetician's preference, and how well the client tolerates needles. Ideally, the pilot needle should be a gauge larger than the cannula. They have a blunt tip, and therefore require an entry point made by a needle before insertion. Cannulas can be less likely to cause bruising after filler treatment 2. This is a MUST SEE for all injectors who are starti. Needles are, obviously, very sharp, whereas cannulas have a blunt, rounded tip. Cannulas may be less painful than needles 3. The Cannula course is ideal for aesthetic practitioners who have a good basic knowledge of dermal filler injections and who feel ready to develop their knowledge of alternative techniques by exploring the use of cannula in particular. It has been common knowledge that the dermal filler injection process can cause pain and can be associated with complications such as bruising, skin necrosis and . As a result, there can be loss of skin of the face due to compromised blood supply. Cannulas seem to be the better alternative to a needle injection in many ways. It is painful when needles create several holes especially in sensitive areas in the face. For instance, a 23-gauge needle is used to introduce a 25-gauge cannula to breach the skin (Figure 3). Fillers like Secret Rose and Juvederm come with needles and cannulas, so the aesthetician has the freedom to use either one. After using microcannulas for fillers for 8 years, Dr. Weiner "The Cannula Doc", explains his top 9 tips. Alam M, Kakar R, Dover JS, Harikumar V, Kang BY, Wan HT, Poon E, Jones DH. 樂 These tools are used by aesthetic practitioners to inject skin, especially dermal fillers. So why is it most preferred? The classic debate of cannula vs. needle for your dermal filler injections has been an ongoing topic of conversation among patients and injectors all over the world. experienced medical personnel. A cannula technique makes the treatment quicker and less painful, without needle re-entry. Each syringe of dermal filler comes in a sterile pouch with 2 needles. There is also a decreased risk of bleeding, bruising and swelling. JAMA Dermatol, 157(2):174-180, 01 Feb 2021 Cited by: 0 articles . Together they form a unique fingerprint. Fillers: Needle vs Cannula The conventional method to inject hyaluronic acid (HA) dermal fillers such as Voluma and Juvderm, has historically been performed with a (sharp) needle. This is a vital step since the Microcannula has a blunt tip and is incapable of penetrating the skin by itself. safer, less . However, in the authors' opinion, using. A cannula technique makes the treatment quicker and less painful, without needle re-entry. Needles. Safety In general, a cannula is considered safer as it lacks the sharpness of the needle. A cannula is a thin tube with a small needle at the tip. Moreover, cannulas are a safer option as they bypass the danger zones such as arteries. 19 Previously, it had been assumed that the supraperiosteal placement of fillers with a sharp needle was a very precise technique, because of the exact placement of the needle tip. Not only is there less pain during your injection treatment, but there is a decreased risk of bleeding and bruising. There are some misconceptions out there about using cannulas for dermal fillers. For many patients, a combination of blunt microcannula, as well as needle injection of fillers, may represent the optimal balance of safety and efficacy, by providing minimally traumatic diffuse contouring plus precise shaping. The introduction and adoption of cannulae to deliver soft-tissue fillers has led to a debate on the use of cannulae over sharp needles. "Because they do not have a sharp tip, cannulas may be less like to puncture a blood vessel when fillers are injected. Cannulas are more maneuverable around delicate areas of the skin, have higher accuracy with dermal sites, and allow for a continuous flow of filler towards the site. "A cannula is a flexible needle with a blunt tip, as opposed to traditional needles which are rigid and have a sharp point," Zeichner tells Allure. Both cannula and needles are used in undereye fillers. As a result, there can be loss of skin of the face due to compromised blood supply. Because cannulas are blunt and have a side injection port, the incidence of intravascular injection is substantially decreased. Multivariate analysis found that injections with cannula had 77.1% lower odds of occlusion compared with needle injections. They can be used in most of the areas fillers are used. It is a relatively new form of treatment that surgeons have been using over the past decade that has been widely accepted compared to needles. It is used to inject fillers to fill wrinkles and folds in the skin. Because needles can easily pass into or through a vein or artery, there is more chance of bruising or swelling. A cannula is a thin tube with a small needle at the tip. Should aesthetic clinicians stop using needles and switch to cannulas? a cannula is the better method as it is. 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