Fig. (4) Results for Zuckerman score. The preoperative score
(median 38 points) had fallen by an average of eight points four
months after surgery (median 30 points). From four to 12 months
after the operation there was an average increase of four points
(median 34 points). Between the 12- and 24-month follow-up the
level of activity in daily living measured by the score remained
unchanged.