Yi KH

Supraorbital hollowness and pretarsal fullness, commonly known as the sunken eyelid and charming roll, respectively, are significant anatomical features that impact the aesthetic appearance of the periorbital region. Supraorbital hollowness…

Aging is an ongoing process involving changes in the skin, muscle, bone, fat, and ligaments. This process has been extensively studied, especially by plastic surgeons who have categorized the process into four distinct facial regions that i…

[BACKGROUND] Nonsurgical rhinoplasty with cross-linked hyaluronic acid (HA) fillers is popular for enhancing nasal esthetics, especially in Asian patients seeking dorsal augmentation. While fillers are expected to last 6 to 12 months, evide…

[BACKGROUND] Nonsurgical rhinoplasty (NSR) with dermal fillers has gained popularity because of its immediate and visible results, minimal downtime, and long-lasting effects. However, complications such as filler migration can lead to the d…

Nasal augmentation using dermal fillers has become a popular nonsurgical esthetic procedure, particularly among Asian populations. This review explores the anatomical considerations, injection techniques, and safety measures essential for s…

[BACKGROUND] Nonsurgical correction of a deviated nose using hyaluronic acid (HA) fillers offers a minimally invasive alternative to traditional rhinoplasty. This study presents a series of cases demonstrating the efficacy of HA fillers in …

The appearance of an individual's nose plays a pivotal role in facial aesthetics. A nose that is proportionate to a person's face enhances facial balance and appearance. Traditional surgical rhinoplasty has been a common solution for addres…

The use of hyaluronic acid (HA) fillers in both primary and revision rhinoplasties has gained increasing popularity among physicians in recent years. Although surgical rhinoplasty remains the gold standard for nasal reconstruction and corre…

[BACKGROUND] The process of fat redistribution during aging is well-known to fat accumulation toward inferior and medial areas of the face. Utilizing laser devices with simultaneous multiple wavelengths has been employed for fat lipolysis a…

[OBJECTIVE] In the esthetic field, the masseter muscle is commonly targeted by botulinum neurotoxin for facial contouring. However, multiple botulinum neurotoxin injections have been reported to cause muscle fibrosis. Ultrasonography can be…

Masseter are commonly botulinum neurotoxin targeted muscle for facial contouring in aesthetic field. However, paradoxical masseteric bulging is common adverse effect that has not been discussed with ultrasonographic observations. Retrospect…

The multiple wavelength diode laser (MWDL) is a sophisticated device designed to target deeper skin layers by emitting various wavelengths. Its unique feature is the ability to deliver heat to specific depths within the tissue using differe…

[BACKGROUND] Hypertrophied submandibular glands provide a bulky contour to the lower face. Botulinum neurotoxin injection methods are commonly used for facial contouring; however, no studies have suggested injection points because of the la…

[INTRODUCTION] Inadvertent entry of filler products into the supratrochlear, supraorbital, or dorsal nasal arteries, among other branches of the ophthalmic artery, might result in an immediate and devastating loss of vision. We wanted to ex…

[BACKGROUND] The concept of "skin boosters" has evolved, marking a shift from traditional uses of hyaluronic acid (HA) fillers primarily for augmenting skin volume to a more diverse application aimed at improving dermal conditions. Restylan…

[BACKGROUND] The concavity of the temple due to adipose tissue atrophy from aging accentuates the zygomatic arch and lateral orbital rim, leading to an aged appearance. The use of hyaluronic acid filler in the temporal region has gained pop…

Vascular complications arising from dermal filler treatments pose significant risks, including ischemia, tissue necrosis, and severe outcomes like blindness and pulmonary embolism. This study investigates the mechanisms of vascular complica…

The increase in the use of filler treatments within minimally invasive cosmetic surgery has correspondingly escalated the variety and frequency of associated side effects. Initially, unregulated procedures led to primary side effects such a…

[INTRODUCTION] The advances of self-crossing hyaluronic acid (SC-HA) fillers combination use with polydioxanone thread in minipigs were examined for compatibility, effectiveness, and immune response. [MATERIALS AND METHODS] A 12-week exper…

Hyaluronic acid (HA) fillers are extensively utilized in aesthetic medicine due to their biocompatibility, reversibility, and effectiveness in enhancing skin hydration, volume, and overall appearance. These fillers are predominantly produce…

[INTRODUCTION] The objective of this experiment was to investigate the thermal effects on hyaluronic acid fillers, PCL fillers, and PDO threads when exposed to controlled heat. This study aims to provide insights into how these materials re…

[OBJECTIVE] To review the technique and outcomes of using dermal filler to camouflage forehead osteoma, providing a minimally invasive alternative to surgical excision. [BACKGROUND] Forehead osteoma, commonly known as a forehead bump or bo…

[INTRODUCTION] The purpose of this study was to investigate neural patterns within the gluteus maximus (Gmax) muscle to identify optimal EMG placement and injection sites for botulinum toxin and other injectable agents. [METHODS] This stud…

[BACKGROUND] Botulinum neurotoxin treatment typically focuses on the teres major muscle as a primary target for addressing shoulder spasticity. The muscle is located deep within a large muscle group and optimal injection locations have not …

The utilization of botulinum neurotoxin in the field of body contouring is on the rise. Body contouring procedures typically focus on specific muscle groups such as the superior trapezius, deltoid, and lateral head of the triceps brachii. T…