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Glossary Outcome measure

Key pinch

Polski: Chwyt kluczowy (siła chwytu bocznego) Czytaj po polsku →

Also known as lateral pinch key-pinch strength

The grip between the pad of the thumb and the side of the index finger, as when turning a key, measured with a pinch gauge in kilograms. The strength most affected by thumb-base arthritis and the outcome that separates the operations: it fades over years after trapeziectomy and is about 0.9 kg stronger after joint replacement in pooled trials.

Articles mentioning this term

  1. Patient information

    Thumb-base arthritis

    Thumb-base (CMC) arthritis: symptoms, splints, exercises, injections, and how trapeziectomy compares with joint replacement in recovery, strength and risk.

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