The ODI remains a valid and vigorous measure and has been a worthwhile outcome measure .
The behavior of the instrument is incompletely understood , particularly in sensitivity to real change .
The Oswestry Disability Index ( ODI ) has become one of the principal condition-specific outcome measures used in the management of spinal disorders .
To review the versions of this instrument , document methods by which it has been vali date d , collate data from scores found in normal and back pain population s , provide curves for power calculations in studies using the ODI , and maintain the ODI as a gold st and ard outcome measure .
It has now been 20 years since its original publication .
Effectiveness of Harpagophytum procumbens in treatment of acute low back pain.
In a study that indicates more definitive investigation is needed , 118 patients with chronic back problems seeking treatment for acute attacks of pain were included in a 4-week r and omised double-blinded study on the safety and effectiveness of an extract of Harpagophytum procumbens . Both , the treatment and the placebo were administered in the form of two tablets taken three times per day ; the treatment group had a daily consumption equal to 6,000 mg of crude preparation ( 50 mg harpagoside , the putative active ingredient ) . The treatment and placebo groups were well matched in physical characteristics ; in the severity , duration , nature and accompaniments of their pain ; and in laboratory indices of organ system function . 109 patients completed the study . The study was originally design ed to measure Harpagophytum 's effectiveness by measuring the use of supplementary pain-killer Tramadol over its final 3 weeks . However , this did not differ between the Harpagophytum and placebo groups nor was the consumption closely related to the amount of pain . Further analysis , though , revealed that 9 out of 51 patients who received the extract were pain free at the end of treatment compared to only 1 out of 54 patients who received placebo . A modification of the Arhus index was used as an additional measure , covering the more global impact . The percentage change was greater in those patients who received Harpagophytum extract than in those who received placebo , but inferential testing ( Mann Whitney ) allowed only 94 % degree of confidence that this had not arisen by chance . The Arhus index reduction was based on improvement in pain . This indication of effectiveness , and the absence of demonstrable adverse effects show that more definite clinical studies of Harpagophytum extract will be worthwhile
The ODI remains a valid and vigorous measure and has been a worthwhile outcome measure .
The behavior of the instrument is incompletely understood , particularly in sensitivity to real change .
The Oswestry Disability Index ( ODI ) has become one of the principal condition-specific outcome measures used in the management of spinal disorders .
To review the versions of this instrument , document methods by which it has been vali date d , collate data from scores found in normal and back pain population s , provide curves for power calculations in studies using the ODI , and maintain the ODI as a gold st and ard outcome measure .
It has now been 20 years since its original publication .