[Biorhythmic characteristics of patients with total primary and revision hip replacement].

Age-dependent fluctuations of primary total and revision endoprosthesis have been found which appear to reflect changes in the activity of the inflammation process that can be regarded to be an element of periodic diseases. This seems to depend on the regulatory-metabolic shifts caused by aging.

[Biorhythmical characterization of exacerbations of the degenerative-dystrophic process in patients with the impaired hip joint].

The age-dependent structure of the contingents treated conservatively at the local outpatient clinics (197 women aged 17-82 and 59 men aged 25-85) and patients subjected to operations of total endoprosthesis of the hip joint for coxarthrosis (663 women aged 19-89 and 304 men aged 22-82) was investigated. The structure of the indices under study was found to fluctuate with the average period length 10.7 years (sigma = 2.