What is a common alternative name for gameskeeper's thumb?

Gameskeeper's thumb is commonly known as skier's thumb because the injury typically occurs when a person's thumb is subjected to excessive stress or force, often during skiing activities. This injury involves a sprain or tear of the ulnar collateral ligament (UCL) at the metacarpophalangeal joint, which is critical for thumb stability and function.

The term "skier's thumb" originated from the idea that skiers can fall or exert force on their thumbs while holding ski poles, leading to this specific ligament injury. This shared context of activities gives rise to the alternative naming, highlighting the sports-related nature of the injury.

The other terms listed, while they refer to hand or thumb issues, describe different conditions. "Baseball finger" pertains to an injury involving the extension of the finger rather than the thumb, "wrist sprain" refers to a different area entirely, involving the wrist, and "trigger finger" describes a condition where a finger catches or locks when bent, which is not related to the ligament injury associated with gameskeeper's thumb. Thus, skier's thumb is the correct terminology that aligns with the nature of the injury and its common context in sports activities.