Spinal Tech

In NuVasive's second-quarter earnings call Aug. 4, CEO Chris Barry said the spine device company remains uncertain whether its business will return to growth by the end of the year, according to Seeking Alpha.

Zimmer Biomet reported sharp sales declines across all product categories in the second quarter.

Here's how Medtronic, Stryker and Johnson & Johnson's shares have fluctuated over the last five days.

Medtronic has made several big moves this year, including leadership changes, acquisitions and robotic investment.

Second-quarter neurotechnology and spine sales at Stryker decreased 29.6 percent to $546 million year over year, according to a July 30 announcement.

Since the beginning of the year, Becker's Spine Review has reported on 48 spine device companies that received FDA clearances, launched new products, expanded operations and agreed to acquisitions:

Medical device company 7D Surgical's Machine-vision Image Guided Surgery system for spine surgery received regulatory approval in Singapore on July 30.

Here are the spine devices that have received FDA 510(k) clearance since March.

Spinal implant manufacturer Zavation Medical Products launched its Expandable Anterior Lumbar Plate and Expandable Lateral Lumbar Plate on July 28.

Here are four key notes on spine and orthopedic device companies: