Limitations of the study
KNEE ARTHRITIS
The small sample size is considered the chief shortcoming of the study. This can be attributed to the inclusion criteria which emphasized persistent knee arthritis. Gait analysis before and after injection should be considered in the study, but unfortunately, there is no expert for gait analysis in the university. TA hexacetanoid is better than TA acetanoide and has a longer-lasting effect. Unfortunately, TA hexacetanoid is not available in Egypt. In addition, we used a relatively small dose of TA. This can be justified by the cartilage damage noticed with using larger TA doses in previous studies [