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| Comparative clinical study of the effect of short-wave and long-wave diathermy on osteo-arthritis of the knee and hip | 
| Valtonen EJ, Alaranta H | 
| Scandinavian Journal of Rehabilitation Medicine 1971;3(3):109-112 | 
| clinical trial | 
| 2/10 [Eligibility criteria: No; Random allocation: Yes; Concealed allocation: No; Baseline comparability: No; Blind subjects: No; Blind therapists: No; Blind assessors: No; Adequate follow-up: No; Intention-to-treat analysis: No; Between-group comparisons: No; Point estimates and variability: Yes. Note: Eligibility criteria item does not contribute to total score] *This score has been confirmed* | 
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                     With the aim of investigating the possible difference in the effect of short-wave and long-wave diathermy, a series of 160 patients suffering from symptoms of osteo-arthritis of the knees and hips was divided into two groups; one group was treated with short-wave diathery and the other with long-wave diathermy. In addition, the ordinary course of therapeeutic exercise was given in both groups. The results obtained showed no differences between the groups. Because the application of long-wave diathermy is much more inconvenient than that of short-wave diathermy there seems to be no reason to make use of this old-fashioned form of treatment.  
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