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Invasive Species Threaten Critical Habitats, Oyster Among Victims
A study of oyster reefs in a once-pristine California coastal estuary found them devastated by invasive Atlantic Coast crabs and snails, providing new evidence of the consequences when human activities move species beyond their natural borders.

Teens Sensitive To Others' Perceptions Of Them
Young adolescents care a lot about what others think about them. A new study confirms this using brain-mapping techniques that shed new light on this complex period of social development.
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Study Demonstrates Benefits Of 'Healthy Kids' Program
A program that provides health care coverage to uninsured kids saved Los Angeles County health facilities more than $37 million in uncompensated costs over the past three years, according to an analysis led by USC community health expert Michael Cousineau.
Endocrinology

K2M's ALEUTIAN Spacer Systems Receive FDA Clearance To Be Marketed As Intervertebral Body Fusion Devices

K2M, Inc., a spinal device company developing innovative solutions for the treatment of complex spinal pathologies, announced it has received 510(k) clearance from the U.S. Food and Drug Administration (FDA) to market its ALEUTIAN® Spacer Systems as intervertebral body fusion devices. The ALEUTIAN family of five different systems offers a full array of anatomically designed PEEK-OPTIMA® interbody options, including the Anterior-Lumbar Interbody Fusion (ALIF), Small-Anterior (Cervical), Posterior-Lumbar Interbody Fusion (PLIF), Anatomically Narrow (AN), and Transforaminal-Lumbar Interbody Fusion (TLIF). ALEUTIAN features radiolucent properties which have the potential to increase visualization of bone graft, while allowing for more accurate fusion assessment. In addition, the elastic modulus, a physical property of the material, more closely matches that of cortical bone for load sharing with the potential to minimize stress shielding and enhance fusion results. The bulleted nose allows for easier insertion and distraction, and the self-retaining teeth can potentially provide post-operative stabilization of the implant. According to Dr. Raphael Roybal, Orthopedic Spine Surgeon at the Savannah Spine Institute, "The ALEUTIAN family of interbody PEEK cages provides a reproducible bridge where successful arthrodesis crosses over to superior anatomical reconstruction." "FDA clearance for the ALEUTIAN Spacer Systems to be marketed as intervertebral body fusion devices provides surgeons with multiple surgical applications in the cervical and lumbar spine for the treatment of Degenerative Disc Disease (DDD) and Spondylolisthesis, as well as more complex applications," stated Eric Major, K2M"s President and CEO. "The anatomically designed implants and differentiated surgical instruments facilitate and streamline surgical applications. The ALEUTIAN family of products complements our comprehensive product portfolio of best-in-class systems for treating all types of complex spinal pathologies." K2M, Inc.


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