debbied28, the benefit from the first injection will extend for over three years. The physician who ran the clinical trials almost never repeats the injection at one year but waits for two because the effects are equal.
It's a safe bet that the delay will be inconsequential either in the interum or in the effectiveness.
The percentage change in lumbar bmd after a year of cessation from Reclast is a net positive.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8519894/