What is osteoarthritis?
The knee is a prime example of a synovial joint. A healthy knee joint is made of bones that are encased with a layer of tough articular cartilage. This protective cartilage constantly secretes lubricating synovial fluid that is rich in hyaluronic acid (HA) to ensure that the bones glide effortlessly against each other without pain or stiffness. The synovial fluid also maintains the joint health by absorbing any sudden impacts. Unfortunately, years of wear-and-tear caused by various factors like excessive weight, genetics, and participating in physically exerting sports (e.g. tennis) can result in disintegration of the articular cartilage. Hence, there will be decreased production of synovial fluid and the bones may grind against each other excruciatingly. When this happens, patients experience tremendous pain, stiffness, and reduced joint mobility; this condition is known as osteoarthritis.
What is hyaluronic acid injection for knees?
Most patients diagnos ...
What are dermal fillers?
Dermal fillers are injectable gel used to correct aesthetic imperfections. Dermal fillers are also known as cosmetic implants, medical devices, and soft tissue fillers. Nowadays, these implants exist in varying concentrations with skin-nourishing ingredients integrated to address countless skin problems—from simple skin rejuvenation to volumising deep-set facial wrinkles—effectively.
How long do dermal fillers last?
The residence time—the time taken for an injected implant to be metabolised and disintegrated into the surrounding tissues—generally depends on the type of filler material used. Collagen-based fillers are bioresorbable and have the shortest residence time compared to other types of fillers at only 3 to 4 months. Hyaluronic acid-based implants are arguably the most popular type of filler on the market due to their biocompatibility, effectiveness, and versatility. These cosmetic implants are processed with various manufac ...
What is a hyaluronic acid (HA) injection?
Hyaluronic acid (HA) is a naturally-occurring complex carbohydrate with excellent humectant properties. It is an important cell in the body that helps to moisturise other cells for their optimal performance. Synthetic HA is now a permanent fixture in the aesthetic and medical fields due to its versatility and efficacy. A popular product is hyaluronic acid-based injectable fillers that are formulated to correct various dermal defects such as superficial wrinkles and skin creases. Some brands of HA fillers are also designed with high viscoelasticity and malleability to volumise sunken areas and sculpt facial features (e.g. nose, lips, etc.) and contours (e.g. jawline, etc.).
How is hyaluronic acid filler injected?
Hyaluronic acid filler is meant to be injected intradermally into the problematic areas. It is very important that the patient’s medical history and dermal defects are assessed extensively before the procedure to ensure tha ...