Reinforced Spine/Old World Blues

Reinforced Spine is a perk in the Fallout: New Vegas add-on Old World Blues.

Requirements
This perk will replace Spineless if you opt to have the Sink Auto-Doc re-insert your spine when the option becomes available.

Effects
Your Strength and Damage Threshold have been permanently raised by 2 points.

Behind the scenes
Apparently, the original counterpart to Spineless was to be called 'Spine-full', and the description implies it would provide +1 Agility, +5 Sneak, and +1 Charisma. Additionally, there is also a mirror of Reinforced Spine with a different description and the effects from Spineless.