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Curr Med Res Opin. 2005 Aug;21(8):1261-9.

Tolerability and short-term effectiveness of hylan G-F 20 in 4253 patients with osteoarthritis of the knee in clinical practice.

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  • 1Klinik Lohrey, Orthop├Ądie und Rheumatologie, Bad Soden-Salm├╝nster, Germany.

Abstract

OBJECTIVE:

To determine the tolerability and short-term effectiveness of hylan G-F 20 (Synvisc) in patients with symptomatic osteoarthritis (OA) of the knee in standard clinical practice.

RESEARCH DESIGN AND METHODS:

Over 800 orthopedic surgeons in Germany recorded adverse events (AEs) for approximately five consecutive patients each following 3 weekly intra-articular hylan G-F 20 injections. Patients assessed their pain on a 4-point scale before and 3 weeks after the first injection. Potential risk factors for local AEs and possible predictors of short-term effectiveness of hylan G-F 20 were explored with logistic regression.

RESULTS:

4253 patients were treated with 12699 injections by 840 physicians at 720 sites. Local, treatment related AEs (n = 302) were reported in 180 patients (4.2% of patients; 2.4% of injections). The most frequently reported AEs were joint effusion (2.4% of patients), joint swelling (1.3%), arthralgia (1.2%), joint warmth (0.6%), and injection site erythema (0.3%). Most AEs were mild (21.4%) to moderate (40.3%) in nature. One patient experienced a serious AE of severe swelling and synovial fluid accumulation judged as possibly treatment related. Patients < 70 years old, patients with a longer time since diagnosis, and those previously treated with visco-supplementation were more likely to experience a local AE. Pain significantly (p < 0.0001) decreased 3 weeks after the first injection compared with before treatment. Potential predictors of hylan G-F 20 short-term effectiveness were being underweight, male gender, shorter time since diagnosis, and severe baseline pain.

CONCLUSIONS:

In this population of 4253 patients treated with hylan G-F 20 for OA knee pain, the overall incidence of local, treatment-related AEs was low and consistent with those reported in the current US product labeling and previously published studies. Additionally, short-term effectiveness was confirmed.

PMID:
16083536
[PubMed - indexed for MEDLINE]
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