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Weekly News, Analysis, and Commentary


Linking the Mechanics of HA to Knee Cartilage Biology

Lawrence Bonassar, Ph.D. / Courtesy of Cornell University

A new, important study out of Dr. Lawrence Bonassar’s lab at Cornell University has quantified the link between Hyaluronic Acid’s (HA’s) lubrication function and the complex biologic processes operating on the arthritic knee. For any physician using HA, this is a must-read study.

Geriatric High-Energy Traumas Doubled in 10 Years?!; Is Arthroscopic Partial Meniscectomy Useless?; Surface Topography Helps With Body Image in AIS

Source: Pexels

Multicenter work finds an alarming rise in older folks experiencing high-energy trauma. Hopkins researchers find little/no use for arthroscopic partial meniscectomy. And we now have evidence of how surgery for adolescent idiopathic scoliosis affects body shape and body image.


Posterior or Anterior for Scoliosis? Surprising New Answer; How Does RA Affect Sagittal Alignment?; Study: First Systematic Review of Anterior vs. Posterior in THA

Source: Wikimedia Commons and Weiss HR, Goodall D - Weiss HR, Goodall D. Scoliosis. 2008 Aug 5

Use anterior/posterior approach with a Lenke 5C curve? Its’ complicated, says a new study. Japanese researchers examine the role of steroid intake and other things that influence saggital balance in RA patients. THA patients treated with the anterior approach had less pain, lower narcotic usage, and better hip function than those undergoing the posterior approach.


Lawsuit Over Alleged “Debonding” Hits DePuy’s ATTUNE Knee

Attune Knee System / Courtesy of DePuySynthes

Johnson & Johnson’s DePuy ortho business has been hit by lawsuits over two of its metal-on-metal hip systems. The company’s ATTUNE knee replacement system is at the heart of a new lawsuit after evidence of device failure due to the debonding of the tibial baseplate. Here’s a look at the legal arguments and possible market implications.