To monitor the effect of open carpal tunnel decompression on grip stre
ngth in the hand, a prospective study was made of 25 patients undergoi
ng a total of 31 operations. Hand grip, key pinch and pulp-to-pulp pin
ch strengths were measured pre-operatively and at regular intervals un
til 1 year following operation. At that time there was no significant
difference in the hand grip and pulp-to-pulp pinch strengths compared
to their pre-operative values, but the key pinch in females showed a m
arginally significant reduction (P = 0.04) compared to the pre-operati
ve value.