The phrase "as having regained" is correct and usable in written English.
It can be used when describing a state of recovery or return to a previous condition, often in a formal or literary context.
Example: "The athlete was celebrated as having regained her former strength after a long injury layoff."
Alternatives: "as having recovered" or "as having restored".
In the new, revised continuity, the events of The Killing Joke took place three years before the current storyline, and while it is established she was paraplegic during that time, Barbara Gordon is written as having regained her mobility after undergoing experimental surgery at a South African clinic.
A patient given a questionnaire at three and six months and who, for example, reports use of incontinence pads at the first but not the second questionnaire, is typically recorded as having regained continence at six months.
They had no interest in politics as such, and they later withdrew from the Maccabean cause as soon as they had regained their religious freedom.
As soon as he had regained his footing he turned and walked away, back to the pavilion.
Where states have remained strong, non-Islamist forces, including the pre-revolutionary power elite in countries such as Tunisia, have regained strength .Growing polarisation will be seen in the Middle East as countries with an Islamist core struggle against cultural forces more secular in nature.
In recent months, share prices have recovered as investors have regained confidence in mining's future.
The stockmarket has rallied sharply as investors have regained their nerve and fears about banks going bust have receded.
But in this current season, its ninth, the show seems as if has regained some much-needed energy.
The popularity of the services has left the major banks rushing to adapt, even as they have regained their footing after the financial crisis.
But even as Scotland has regained a degree of political self-determination, its sporting attainments have been in inverse proportion to its political success.
Other banks and building societies have more competitive rates on offer – even big household names such as NatWest have regained their competitive spirit lately.
