Influence of ultrasound therapy on volume of the synovial fluid in knee joint arthrosis (gonarthrosis)-initial reports.

Abstract

SUMMARY Aim of the paper: Aim of the study was impact assessment of the ultrasonic wave on production of synovial fluid in suprapatellar pouch, pain symptoms, and knee movement range. Material and methods: The study group consisted of 23 patients that were diagnoses with excess of synovial fluid in suprapatellar pouch. The measurement of the fluid volume was made using ultrasound examination. Volume of the fluid < 4 mm is considered as positive result of the study. The data was collected with usage of a self-made study protocol. In assessment of pain symptom, the VAS scale was used. Results: Statistically significant reduction of the synovial fluid volume in suprapatellar pouch (p<0.0001) was obtained. Worse result was notice in older patients (p=0.2807), and with greater body mass (p=0.3346). Statistically significant reduction of pain symptoms of knee joint at night (p=0.0002), and during walk on stairs (p<0.0001) was noted. In variable assessment, “walk on the flat ground” had the strongest result (p=0.0001). After the therapy, knee mobility has improved. Improvement of flexion mobility is considered as a statistically strong result (p=0.0013). Conclusions: Formed during the therapy, endogenous heat reduces the volume of synovial fluid in suprapatellar pouch. The result of the thermal therapy increases joint movement and decreases pain symptoms. Keywords: ultrasound therapy, knee joint, suprapatellar pouch, arthrosis (gonarthrosis).