A court decision that was applied to a previous case that is used to guide how to decide on a current issue is known as

Judicial precedent

Explanation:

When a previous court decision is used as a guide to decide a current issue, this is referred to as Judicial precedent. The previous decisions and judgement of a higher court concerning a similar current case in a lower court can be considered and followed to understand the Ration Decidendi of the higher court. It can either be an original precedent, binding precedent or persuasive precedent.

Judicial precedent saves the time of the court, and makes law consistent and fair. Though might make law rigid and mechanical.

answer:

The application of an intermittent cryotherapy protocol after mild or moderate ankle sprain significantly reduced the level of subjective pain on activity, one week after the injury, compared with a standard protocol. There was no significant difference in terms of function, swelling, or pain at rest.