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Antibiotics and Tendon Injury

4/22/2017

1 Comment

 
In May 2016, the US Food and Drug Administration (FDA) issued a warning about the use of a particular type of broad-spectrum antibiotics: Fluoroquinolones. In this statement, the FDA recommends that patients not be treated with fluoroquinolones for uncomplicated infections such as sinusitis, bronchitis or urinary tract infections due to the risk of "disabling and potentially permanent adverse events."   The risks associated with these antibiotics include tendonitis, tendon rupture, central nervous system effects, peripheral neuropathy, myasthenia gravis exacerbation, QT prolongation and torsades de pointes (abnormal heart rhythms that can lead to sudden cardiac death, phototoxicity, and hypersensitivity.

Fluoroquinolones include: 
  • moxifloxacin (Avelox)
  • ciprofloxacin (Cipro)
  • ciprofloxacin extended-release
  • gemifloxacin (Factive)
  • levofloxacin (Levaquin)
  • moxifloxacin injection
  • ofloxacin 

In a review of the research literature (Lewis, 2014), the author finds that the achilles tendon was affected in 95% of the fluoroquinolone-induced tendinopathy or tendon tears, but is also seen in tendons of the knee, hip and shoulder. The risk seems to be increased if the fluoroquinolone is used along with a corticosteroid (a 46-fold increase in risk). It is also important to note that the symptoms of the fluoroquinolone-induced tendinopathy can be seen as soon as a few hours after starting the medication and as delayed as much as 6 months after discontinuing antibiotic treatment. 

As an athlete:
  • discuss with your physician appropriate options for treating infections 
  • speak to your physician about altering your training load if you must take fluoroquinolones
  • avoid use of fluoroquinolones if also taking corticosteroids
  • be alert to a sudden onset of pain during and following the use of these medications 

For the Sports Medicine provider, it is important to know that, according to a case study (Greene, 2002), a fluoroquinolone-induced tendon injury may not respond to eccentric treatment like other tendinopathies, and may require a period of rest prior to progression to eccentric protocol. 

References

FDA Statement
https://www.fda.gov/downloads/Drugs/DrugSafety/UCM500591.pdf

Lewis T. Fluoroquinolones and Tendinopathy: A Guide for Athletes and Sports Clinicians and a Systematic Review of the Literature. JAT 2014:49(3):422-427
​

Greene BL. Physical therapist management of fluoroquinolone- induced Achilles tendinopathy. Phys Ther
. 2002;82(12):1224–1231. 

1 Comment
Bobby link
9/18/2024 11:42:55 am

Very creative post

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    Kendal Jacobson, PT
    I help injured athletes safely navigate back to the joy of their sport with more strength, confidence and resiliency.

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