Introduction:

The population aging in Cuba has caused the increase of osteoarthrosis of the knee in the elderly. As a therapeutic alternative, it was used the clinical use of autologous platelet-rich plasma, in order to promote well-being, not only physical, but also psychological.

Objective:

To characterize the relationship between psychological well-being and anxiety state and feature of elderly adults with osteoarthrosis of the knee, who are subjected to regenerative treatment with autologous platelet-rich plasma.

Methods:

A quantitative research approach was used, with a descriptive-correlational scope, and a simple retrospective expost-fact design. Sampling was intentional, non-probabilistic and consisted of 300 older adults.

The "Adaptation of the Ryff Psychological Well-Being Scale" and the "Trait-State Anxiety Inventory" were applied. For the analysis of the data, three cuts were made: before the regenerative treatment, and after three and six months of evolution.

Results:

There were changes from medium-low levels to high levels of psychological well-being. Levels of state anxiety decreased, but trait anxiety did not. Psychological well-being did not correlate with trait anxiety and there was a weak positive statistical relationship with state anxiety.

Conclusions:

Changes were identified that favor psychological well-being and trait anxiety, with persistent high levels of trait anxiety.

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