Bateman McHugh (denimoboe05)

The shape and fullness of the lips are essential in facial aesthetics. We describe a safe injection technique of hyaluronic acid (HA), based on the well-known golden number Φ (phi), for lip augmentation. The name given to that procedure is "the step-by-step Φ technique." Firstly, "step-by-step" because we never inject more than 1-1.5 ml of HA in 1 session, and "phi" because we apply the golden ratio 1.618-broadly known as Φ-to identify the proper points for injection. Using a specific caliper, we identified 3-4 points in each upper half of the lip. We injected 0.01-0.05 ml of lower concentration (25 mg/g) HA in these particular areas of the upper lip, from the vermillion border into the vermillion. We took into consideration the existing lip volume to decide the proper amount of HA to be injected in every single site, as lips are often asymmetric. On the lower lip, we use the same caliper to identify again the proper injection points. If necessary, the next 2 sessions are performed at an interval of 15-30 days. Our technique was performed in 833 patients. Mean age was 30.2 years (range 18-72 years), and most patients were very satisfied. With this technique, we avoid severe complications such as arterial embolism or venous occlusion and unnatural results. The most common side effects were swelling, redness, and mild pain. The step-by-step Φ technique is safe, easy to learn and perform, and can provide natural results in lip augmentation. The step-by-step Φ technique is safe, easy to learn and perform, and can provide natural results in lip augmentation.Virtual surgical planning (VSP) is state of the art in routine clinical work. Visualization of soft tissue changes adds important information for surgical planning. The aim of this study was to evaluate accuracy of soft tissue prediction of 2 VSP systems in patients undergoing an intraoral quadrangular Le Fort II osteotomy. VSP was performed with the software application IPS Case Designer (IPS) and Dolphin Imaging 11.95 (DOL) in bone and soft tissue structure. Distances were measured at the 3 levels of the face at the infraorbital rim, the sinus floor, and the lateral incisor level with 2 VSP systems (DOL and IPS). A convenience sample of 19 patients was included in the study with a mean age of 21.9 years. From cranial to caudal, mean differences between simulation and postintervention data were as follows infraorbital rim level DOL and ST0 mean difference 2.90 mm; IPS and ST0 1.70 mm; sinus floor level DOL and ST0 mean difference 3.57 mm; IPS and ST0 1.34 mm; and lateral incisor level DOL and ST0 mean difference 2.48 mm; IPS and ST0 2.25 mm. Generally, both VSP systems are suitable for planning an intraoral quadrangular Le Fort II osteotomy. selleck chemicals Especially in the infraorbital region, improvement of the algorithm is required for trustworthy prediction of soft tissue changes. Generally, both VSP systems are suitable for planning an intraoral quadrangular Le Fort II osteotomy. Especially in the infraorbital region, improvement of the algorithm is required for trustworthy prediction of soft tissue changes.Although injections with copolyamide fillers (Aquafilling/Los Deline and Aqualift/Activegel) are currently used widely for breast augmentation, many complications have been reported. A recent position statement by a Korean aesthetic/reconstructive breast surgery society indicated these fillers are the same as polyacrylamide gel (PAAG), which is widely prohibited due to complications. To test this statement, this retrospective cohort study examined the clinical complications after breast augmentation with copolyamide fillers. Nuclear magnetic resonance (NMR) analysis of copolymer and PAAG fillers was also conducted. All consecutive patients with concerns about or sequelae from copolyamide fillers who visited our hospital in 2018-2020 were identified. The injected formulation, complications