From a landmark knee replacement to plans for new construction, here are five updates from New York City-based Hospital for Special Surgery since Sept. 6.

Over the past few decades, rates of spinal fusions have steadily risen. However, pseudarthrosis rates— an indicator of unsuccessful spinal fusion — have not improved enough in the past 20 years to reduce the overall non-unions. With a growing number of spinal fusions, a constant pseudarthrosis rate means that each year there are more non-unions, many of which require revision surgery.

Globus Medical saw an uptick in revenue year over year in the third quarter, and CEO Dave Demski said in an earnings call that the Excelsius 3D imaging system is expected to launch before the end of the year.

Alphatec grew its surgeon user base by 20 percent year over year in the third quarter of 2021, according to financial results posted Nov. 4.

Zimmer Biomet, Stryker and Smith+Nephew all recently reported their third quarter results. While Smith+Nephew and Zimmer Biomet saw dips in orthopedic performance, Stryker saw revenue gains.

A study of Premia Spine's Tops spinal arthroplasty system found positive patient outcomes at the six-week and 12-month marks.

Smith+Nephew saw $1.3 billion in third-quarter revenue; however, its orthopedic sales dipped, according to financial results posted Nov. 4.

Zimmer Biomet's orthopedic and spine sales dipped in the third quarter, according to financial results posted Nov. 4.

Stryker has expanded MakoSmartRobotics across the VA hospital network, the company said Nov. 4.

Synthes GMBH, Johnson & Johnson's orthopedics company, has acquired 100 percent of OrthoSpin, an Israel-based robotics company.

On Jan. 1, 2021, in accordance with the 2021 OPPS/ASC final rule, CMS removed 298 codes, including 266 musculoskeletal-related services, from the inpatient-only list, which it had proposed to gradually phase out by 2024.

Although some surgeons see patient-specific orthopedic implants as a step forward in joint care, others say they're a marketing ploy with flaws.

The first neurosurgeon at a Kansas hospital, a competitor on The Masked Singer and eight more spine surgeons to know:

Pacira Biosciences reported an uptick in total sales and its Exparel injectable analgesic during the third quarter.

Intraoperative neuromonitoring company Assure Holdings has grown significantly in 2021 from strengthening its network to expanding into its 12th state.

From leadership changes to financial results, here are seven updates from spine and orthopedic device companies in the last week:

Healthgrades released its list of 2022 Joint Replacement Excellence Awards on Oct. 19.

SeaSpine's Mariner MIS Wayfinder system is available in a limited launch, the devicemaker said Nov. 1.

Pensacola-based Ascension Florida and Gulf Coast and Phoenix-based Healthcare Outcomes Performance Co. are expanding their Performance Orthopedics and Spine program.

Antonia Chen, MD, a surgeon at Brigham and Women's Hospital in Boston, performed the nation's first total knee replacement with Pixee Medical's Knee+ augmented reality system, the company said in a Nov. 2 news release. The French company's surgery technology has been used in knee replacements in Europe and Australia since January.