Background Information
Sanofi Genzyme, the manufacturer of Synvisc-One Knee Injections, has initiated a voluntary urgent recall of one lot of the injections due to a microbial contamination.
Synvisc-One is a hyaluronic acid gel that is injected into the knee. It helps treat symptoms of arthritis by cushioning and lubricating the joint, and is typically used in patients with arthritis whose pain is not adequately treated with diet, exercise and over-the-counter pain medication.
A recent article from the Boston Globe states that identification number for the contaminated lot of Synvisc-One is 7RSL021. According to Sanofi representatives, the contaminated lot contained approximately 18,000 syringes, and originated from the company’s plant in Ridgefield, New Jersey. 12,380 of the contaminated syringes were distributed across the U.S. between October 25, 2017 and November 7, 2017, and are now being recalled.
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Side Effects
While the side effects experienced by those injected with this contaminated lot of Synvisc-One are similar to the known potential side effects of the injection, there has been an “unexpected increase in the number of labelled adverse events received from the U.S. market,” according to Sanofi spokesperson Heather Guzzi. She did not specify which adverse events were most common among those injected with the contaminated lot, but did state that no deaths had taken place as of December 12, 2017.
Sanofi warns that infection may result from contaminated injections, and side effects may include:
- Pain in the knee
- Swelling
- Heat
- Redness
- Fluid build-up in or around the knee
- Difficulty walking
If you were hospitalized due to any of these symptoms after receiving a Synvisc-One knee injection, we encourage you to complete a Free Case Evaluation.
We will continue to monitor the medical and legal news concerning Synvisc-One injections, and report on any significant developments as we become aware of them.
Written by: Heather Helmendach, Legal Assistant
Law Offices of Thomas J. Lamb, P.A.
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