Glossary Outcome measure
Key pinch
Polski: Chwyt kluczowy (siła chwytu bocznego) Czytaj po polsku →
Also known as lateral pinchkey-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
-
Thumb-base osteoarthritis: trapeziectomy versus arthroplasty
Trapeziectomy versus joint replacement for thumb-base osteoarthritis: ligament anatomy, Eaton staging, the randomised trials, implant survival and salvage.
-
Thumb-base arthritis
Thumb-base (CMC) arthritis: symptoms, splints, exercises, injections, and how trapeziectomy compares with joint replacement in recovery, strength and risk.