News roundup: The Spine Hospital expanding at Perkins Rowe … Work underway on Stab’s Steak & Seafood in Baton Rouge … Dickey’s Barbecue Pit expansion plans including Baton Rouge restaurant

New additions: The Spine Hospital of Louisiana at the NeuroMedical Center is adding a new operating room, three pain management procedure rooms and 17 pre- and post-op rooms. The renovations, costing …