Tegner activity grading
scale (from 0 to 10)--a system for evaluating the degree of impairment, disability, and handicap of the patient with an ACL injury including functional score, activity grading
, stability testing, and measurements of performance and strength, where 0 indicates retirement, while 10 allows professional sport activities .
The diagnostic value of FT for fibrosis staging and of AT for activity grading was similar to those reported previously (8,10-18) with areas under the ROC curves of 0.
This occurred in 63 patients (12%) for fibrosis staging only, in 67 patients (12%) for activity grading only, and in 24 patients (4.
The most frequent biopsy errors were false negatives for activity grading (10.
Compared with patients who did not have false-negative activity grading based on biopsy (n = 483), patients who did have false-negative activity grading based on biopsy (n = 54) had a smaller biopsy size [13.
This occurred in 78 patients (14%) for fibrosis staging only, in 91 patients (17%) for activity grading only, and in 24 patients (7.