The class notes report that Farfan produced torsional disc failure on intact vertebrae with 20 degrees of Y axis rotation. Why is this difficult to produce in vivo?
a. the annular fibers are stronger than that
b. intact facet joints won't allow that degree of rotation
Answer: b. intact facet joints won't allow that degree of rotation
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Biomechanics
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- Which of the following is correct about the various pain types?
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- A 56-year-old female with a known history of seropositive rheumatoid arthritis maintained on etanercept injections presents complaining of right knee pain and swelling for two days. She has been in good health otherwise and denies fevers and chills. She reports stiffness in the right knee that lasts for longer than 1 hour. Her other joints are doing well. You perform an arthrocentesis and remove 30cc of clear fluid. You send the sample to the lab, and 24 hours later no organisms are seen. The patient follows up later that day. The best course of management for this patient is:
- A 64-year-old woman diagnosed with gout has been taking chronic treatment for over one year. The prescribed medication enhances the excretion of uric acid. Her physician cautions her to contact him before starting any prescription or nonprescription medication. The antigout medication and many other drugs can compete for tubular transport. Examples include aspirin and other nonsteroidal anti-inflammatory drugs, loop and thiazide diuretics, certain anti-infective medications, and certain diabetes drugs. The chronic antigout medication prescribed for this patient is most likely:
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