Vitamin K2 is an essential part of good bone health. In fact, a recent study showed promise of Vit K2
combined with a bisphosphonate decreased the risk of fracture in osteoporotic women.
I think people are getting too caught up in a number - as in a T-score. The number doesn't tell the whole story or guarantee anything. It's all about your risk for fracture. The T-score is only one of those risks. And T-score, not Z-score (age matched comparisons), is what is given to post menopausal women.
A T-score is just a number used as a base for measuring. Osteoporosis is defined as having a T-score at -2.5 or lower. Does that mean if your T-score is -2.3 or -2.4 (osteopenia) you're out of the woods? No. It would be like defining obesity at 180 lbs. For someone who's 5' tall, it would be ludicrous to think at 179 lbs, they didn't have a weight problem, but at 180 they did. Same thing with T-scores.
Another thing about T-scores. They can be falsely elevated by arthritis. As we age, our chances of having arthritis greatly increase. That make the bone look denser. If someone's spine was a -2.6 and the latest DXA showed an "improvement" to
a markedly higher number, we would consider the possibility of lumbar arthritis (back pain) and scan the forearm to get a clearer picture of the bone density.
A word of caution about Vit K in any form. Do not take supplements of this without having a conversation with your doctor. Vit K is critical to the body's blood clotting function, and you could be in real trouble self dosing with Vit K. Have your levels checked, and if your doctor thinks you need more, let him tell you how much and how often. It's a delicate balance for a lot of people.
I hope this is clearly written and understandable. To say you've gone from osteoporosis to osteopenia is not enough information to assume improvement and does not necessarily mean that you've dodged a bullet in your chances of having a fracture. There are way too many other considerations in determining fracture risk.