Viscosupplement injection for knee, shoulder, hip and small-joint osteoarthritis — no referral required. Delivered in-clinic in a single visit.
Hyaluronic acid (HA) is a natural gel-like substance already present in your joints. In osteoarthritis, the joint's own HA thins out and loses its cushioning effect, so bone-on-bone friction increases and the joint hurts to load. A hyaluronic acid injection replaces that cushioning — it lubricates the joint surfaces, reduces inflammation and gives the cartilage a mechanical break so pain drops and function improves.
We stock FDA-approved and CE-marked viscosupplements — Synvisc / Synvisc-One, Monovisc, Hyalgan, HyalOne and Hymovis — the same products used in hospital orthopaedic and sports-medicine clinics. Product choice is matched to the joint and the OA severity at the assessment.
These are the hyaluronic acid products we stock. All are established viscosupplements that carry FDA approval, CE marking or both. The clinician recommends one based on the joint, the severity of osteoarthritis and whether a single-dose or multi-dose regimen suits you better. Availability can vary with supply.
A long-established hylan-based viscosupplement. Synvisc is given as a course of three weekly injections; Synvisc-One delivers the same total dose in a single 6 mL injection. Commonly used for knee osteoarthritis.
A single 4 mL injection of high-molecular-weight, cross-linked hyaluronan made by bacterial fermentation rather than from avian tissue — relevant if you have an egg or poultry allergy. Used mainly for knee osteoarthritis.
A sodium hyaluronate made by Fidia Farmaceutici in Italy, given as a course of three weekly 2 mL injections. FDA-approved for knee osteoarthritis, with a long clinical history; the manufacturer also cites published experience in the shoulder, hip, ankle, hand and jaw joint. Generally used for mild-to-moderate osteoarthritis.
A high-molecular-weight sodium hyaluronate from Fidia, previously sold as Hyalubrix, given as a single 4 mL injection. CE-marked in Europe. Observational studies have followed patients with knee and hip osteoarthritis after treatment; these are listed on our Resources page. Generally used for moderate osteoarthritis.
A chemically modified hyaluronan (HYADD 4, which Fidia calls MO.RE. technology) that the manufacturer designed to form a mobile network and remain longer in the joint. Given as a course of two weekly 3 mL injections. FDA-approved for knee osteoarthritis; in Europe it is also CE-marked for the conservative management of meniscal lesions. Often considered for moderate-to-severe osteoarthritis and for physically active people.
Product names are trademarks of their respective manufacturers. We name them so you know exactly what is being injected. The injection is quoted after assessment.
The commonest indication. Works best in mild to moderate OA (Kellgren-Lawrence grades 1-3), where cartilage is thinning but the joint space hasn't fully collapsed. A single injection typically gives 6-12 months of pain relief.
Glenohumeral OA — pain reaching overhead, night pain, stiffness getting dressed. Ultrasound-guided injection into the glenohumeral joint reduces pain without the systemic effects of oral anti-inflammatories.
Groin pain, stiffness after sitting, reduced walking distance. HA injection into the hip joint (image-guided) offers a durable option for patients not ready for hip replacement.
Post-traumatic ankle OA, first-carpometacarpal (thumb-base) OA and other small-joint arthritis often respond well to smaller-volume HA injections.
You don't need a referral. You don't need to have failed physiotherapy first. Walk in during opening hours or book online.
The assessment and the injection are usually done in the same visit.
Hyaluronic acid works well when the diagnosis is right and the joint is the right candidate. The main mistakes we see elsewhere are (1) offering HA to someone with severe grade 4 OA who really needs a joint replacement, and (2) offering HA when the pain is actually coming from a mechanical block like a bucket-handle meniscal tear that needs a different intervention. We spend time on the assessment so you get the procedure that matches your knee — not the one that pays the clinic best.
We are also happy to say "no". If HA isn't the right answer for you, we'll tell you, and where appropriate we refer to an orthopaedic surgeon or sports-medicine physician for an opinion — that referral is worth having at the right point, not before.
Yes. Inflexion Clinic in Katong stocks Synvisc / Synvisc-One, Monovisc, Hyalgan, HyalOne and Hymovis. You do not need a referral, and the assessment and the injection are usually done in the same visit. If a specific product is temporarily out of stock we will tell you and suggest the closest alternative.
All three are single-injection hyaluronic acid products. They differ mainly in how the hyaluronic acid is made and stabilised: Synvisc-One is a hylan derived from avian tissue, Monovisc is a cross-linked hyaluronan from bacterial fermentation, and HyalOne is a high-molecular-weight sodium hyaluronate that is not cross-linked. Published comparisons have not consistently shown one to be better than another, so the choice usually comes down to the joint being treated, allergy history and availability.
It depends on the product. Synvisc-One, Monovisc and HyalOne are designed as a single injection; Hymovis is a course of two weekly injections; Synvisc and Hyalgan are given as a weekly course of three injections. Response varies between people: many patients notice improvement over 2–6 weeks, and when it helps the effect commonly lasts several months. Repeat treatment is possible, usually no sooner than six months after the previous course.
Three hyaluronic acid products made by Fidia Farmaceutici in Italy. Hyalgan is a 500–730 kDa sodium hyaluronate given as three weekly injections; HyalOne is a 1,500–2,000 kDa sodium hyaluronate given as a single injection; Hymovis is a modified hyaluronan (HYADD 4) given as two weekly injections. They sit alongside the other brands we stock. Head-to-head trials have not shown any one product to be reliably better than the others, so the clinician matches the product to your joint, your osteoarthritis and your preference for a single visit or a short course.
Book online, use the enquiry form, or walk in during opening hours. Most patients are seen and injected within a single visit.