Xtant Medical Holdings Inc. appointed Michael Mainelli as the interim replacement for outgoing CEO Carl O'Connell, who led the company through a restructuring.

Mainelli has been on the board of the Belgrade, Mont.-based company since February and was the CEO of Stanmore Implants Worldwide Ltd. when it was purchased by Stryker Corp. in 2016.

O'Connell had been Xtant Medical's CEO since October 2016.

The company plans to look for a permanent CEO.

Xtant Medical develops regenerative medicines and implants for deformities and degenerative diseases affecting the spine.